Articles de revues sur le sujet « Maternal Near Mi »

IntroductionMaternal immunization (MI) with tetanus toxoid containing vaccine, is a safe and cost-effective way of preventing neonatal tetanus. Given the prospect of introducing new maternal vaccines in the near future, it is essential to identify and understand current policies, practices and unmet needs for introducing and/or scaling up MI in low-income and middle-income countries (LMICs).Methods and analysisThe Maternal Immunization and Antenatal Care Situation Analysis (MIACSA) is a mixed methods, cross-sectional study that will collect data in four phases: (1) a review of global databases for selected health indicators in 136 LMICs; (2) a structured online survey directed at Maternal, Newborn and Child Health and Expanded Programme on Immunization focal points in all 136 LMICs; (3) semistructured telephone interviews of 30 selected LMICs and (4) 10 week-long country visits, including key informant interviews, health facility visits and focus group discussions. The principal analyses will assess correlations between the various aspects of MI delivery strategies and proxy measures of health systems performance related to vaccine-preventable disease control. The primary outcome will be a typology of existing MI delivery models, and secondary outcomes will include country profiles of child and maternal health indicators, and a MI gaps and needs analysis.Ethics and disseminationThe protocol was approved by the WHO Ethics Review Committee (ERC.0002908). The results will be made available in a project report and submitted for publication in peer-reviewed journals that will be shared broadly among global health decision-makers, researchers, product developers and country-level stakeholders.

Abstract Maternal inflammation induces intrauterine growth restriction (MI-IUGR) of the fetus, which compromises metabolic health in human offspring and reduces value in livestock. The objective of this study was to determine the effect of maternal inflammation at midgestation on fetal skeletal muscle growth and myoblast profiles at term. Pregnant Sprague-Dawley rats were injected daily with bacterial endotoxin (MI-IUGR) or saline (controls) from the 9th to the 11th day of gestational age (dGA; term = 21 dGA). At necropsy on dGA 20, average fetal mass and upper hindlimb cross-sectional areas were reduced (P < 0.05) in MI-IUGR fetuses compared with controls. MyoD+ and myf5+ myoblasts were less abundant (P < 0.05), and myogenin+ myoblasts were more abundant (P < 0.05) in MI-IUGR hindlimb skeletal muscle compared with controls, indicating precocious myoblast differentiation. Type I and Type II hindlimb muscle fibers were smaller (P < 0.05) in MI-IUGR fetuses than in controls, but fiber type proportions did not differ between experimental groups. Fetal blood plasma TNFα concentrations were below detectable amounts in both experimental groups, but skeletal muscle gene expression for the cytokine receptors TNFR1, IL6R, and FN14 was greater (P < 0.05) in MI-IUGR fetuses than controls, perhaps indicating enhanced sensitivity to these cytokines. Maternal blood glucose concentrations at term did not differ between experimental groups, but MI-IUGR fetal blood contained less (P < 0.05) glucose, cholesterol, and triglycerides. Fetal-to-maternal blood glucose ratios were also reduced (P < 0.05), which is indicative of placental insufficiency. Indicators of protein catabolism, including blood plasma urea nitrogen and creatine kinase, were greater (P < 0.05) in MI-IUGR fetuses than in controls. From these findings, we conclude that maternal inflammation at midgestation causes muscle-centric fetal programming that impairs myoblast function, increases protein catabolism, and reduces skeletal muscle growth near term. Fetal muscle sensitivity to inflammatory cytokines appeared to be enhanced after maternal inflammation, which may represent a mechanistic target for improving these outcomes in MI-IUGR fetuses.

Introduction: Maternal morbidity and mortality in India continues to remain high despite concerted efforts during the past decades. Objective of this study was to determine the prevalence and indicator of Potentially Lie Threatening Conditions (PLTC) and ‘near miss’ obstetric cases at different tiers of health care. Material and Methods: A cross-sectional epidemiological study was carried out over a period of 12 months as per the WHO criteria for ‘near miss’. Probability sampling was done to systematically and randomly select health facilities i.e. two primary health centers (PHC), one community health centre (CHC) and a tertiary hospital all from Doiwala block of Dehradun, Uttarakhand, India. The study included all the women attending health-care facilities, who were pregnant, in labour, or who had delivered or aborted up to 42 days ago arriving at the facility. A convenient sampling was done (a hundred percent enumeration of eligible study subjects) for the audit. Result: A total of 937 pregnant women who accessed health care had 688 live births and 231 women had one or more of the Potentially Life Threatening Conditions (PLTC). Among them, 61 women had Severe Maternal Outcome (SMO) - 51 with maternal ‘near-miss’ and 10 maternal deaths. The Severe Maternal Outcome Ratio (per 1000 live births) was 88.66. The Maternal ‘near miss’ Mortality Ratio (MNM-MR) and Mortality Index (MI) were 5.1 and 16.39% respectively. Conclusion: The WHO ‘near miss’ approach has been found to be an effective measure to assess quality of care in maternal health across countries including India.Bangladesh Journal of Medical Science Vol.14(3) 2015 p.254-257

Background: Maternal health is an integral part of health care system. Maternal mortality is an indicator of maternal health and health care delivery system. Severe morbid conditions require comprehensive approach. Hence the concept of Maternal Near Miss (MNM) has emerged. The data of maternal near miss helps to reduce the maternal death and helps to achieve the goals related to reduce the maternal mortality rate of the country as well as the world and to improve the quality of life of the woman population by a quality care. Objectives of present study were to identify and analyze the strategies undertaken in the management of maternal near miss and outcome, measures to improve the quality of care and to assess the various indicators of MNM.Methods: With the permission from the hospital administrators and after taking the ethical clearance from the institutional ethical committee, a retrospective observational study was conducted for the period of one year between January 2016 to December 2016 at district teaching hospital of Kodagu Institute of Medical Sciences, Madikeri, by collecting data from hospital records. Admissions to the ICU as well as wards which fit in to the WHO maternal near miss criteria were included and studied.Results: WHO criteria for the MNM was followed. In present study, there were 25 MNM cases and four Maternal Deaths out of 3347 live births giving a maternal mortality ratio of 119/100000 live births (LB), Maternal Near Miss ratio of 7.46/1000LB, MNM:1MD ratio is 6.25 and mortality index (MI) is 13.79%. Twenty five cases of obstetric emergencies with serious concerns for maternal health were selected out of 97 cases who met the WHO criteria for MNM (25.77%). Twelve cases (48%) received multiple blood-transfusions, 8 cases (32%) of sepsis, 7 (28%) of PPH, and 5 (20%) of hypertensive disorder of pregnancy (pre-eclampsia, eclampsia). There were 12 cases (48%) that had more than one inclusion criteria. Surgical intervention was required in 8 (32%) i.e. 2 peripartum hysterectomies, 2 laparotomies, 1 manual removal of placenta, 1 uterine reposition and 2 traumatic PPH repair.Conclusions: Maternal-Near-Miss (MNM/SAMM) and its relation to maternal mortality contribute as sensitive measures of pregnancy outcome than mortality alone. Proper documentation is of paramount importance in analysis of data, to make conclusions and recommendation. Prospective structured study is required to get a clear picture and to suggest corrective measures which can be taken as far as obstetric care is concerned, to reduce maternal mortality and to achieve the sustainable developmental Goal (SDG) of maternal mortality ratio <70/100000 LB by 2030.

Background. This facility-based study analyzed the epidemiology and incidence of maternal near miss (MNM) and mortality by hospital level as part of Hunan Province’s efforts to raise the quality of hospital care for women. Methods. We used data for MNM and mortality cases for 2012–2018 from 17 hospitals (12 resource-poor facilities, five resource-rich facilities) that receive referrals for obstetric complications in Hunan Province. Data were drawn from China’s National Maternal Near Miss Surveillance System and collected using the World Health Organization near miss tool. We calculated the ratio of severe maternal outcomes (SMO) (i.e., MNM and maternal death (MD) cases), mortality index (MI), and MNM to mortality ratio (MNM : MD), and epidemiological factors, organ dysfunction, and maternal complications stratified by hospital level. The chi-square tests to examine differences between groups and total ratios and 95% CI were calculated. Results. There were 518 SMO cases (489 MNM and 29 MD) among 279407 live births (LBs) and 1299 SMO cases (1262 MNM and 37 MD) among 232386 LBs in resource-poor and resource-rich facilities. The total MNM ratio in resource-poor and resource-rich hospitals was 1.75 (95% CI: 1.60–1.91) and 5.43 (95% CI: 5.14–5.74) per 1000 LBs, respectively. There were differences in SMO cases between resource-poor and resource-rich hospitals in maternal age, education, parity, antenatal visits, and history of cesarean sections. In MNM cases, coagulation dysfunction was the main organ dysfunction (resource-poor hospitals: 59.10%; resource-rich hospitals: 79.32%), and the main maternal complications were obstetric hemorrhage (resource-poor hospitals: 71.98%) and hepatopathy (resource-rich hospitals: 69.49%). For MD cases, the main maternal complications were neurologic dysfunction (resource-poor hospitals: 41.38%) and coagulation dysfunction (resource-rich hospitals: 42.55%). Anemia was the main maternal complication for SMO cases in both resource-poor (69.69%) and resource-rich (68.59%) hospitals. Conclusions. MNM and MD are higher in resource-rich hospitals compared with resource-poor hospitals. The obstetric emergency capacity of resource-rich hospitals is higher than that of resource-poor hospitals. Future government policies should consider upgrading the obstetric emergency treatment capacity in resource-poor hospitals or to redistinguish the social functions of different medical institutions.

Advancing maternal age has long been identified as the primary risk factor for human chromosome trisomy. More recently, altered patterns of meiotic recombination have been found to be associated with non-disjunction. We have used trisomy 21 as a model for human non-disjunction that occurs during the formation of oocytes to understand the role of maternal age and recombination. Patterns of recombination that increase the risk for non-disjunction of chromosome 21 include absence of any exchange, an exchange near the centromere or a single, telomeric exchange. Our recent work has shown that different susceptibility patterns are associated with the origin of the meiotic error and maternal age. For MI (meiosis I) errors, the proportion of oocytes with susceptible recombination patterns is highest among young mothers and decreases significantly in the oldest age group. In fact, the pattern of exchanges among the oldest age group mimics the pattern observed among normally disjoining chromosomes 21. These results suggest that oocytes of younger women, with functional meiotic apparatus and/or robust ovarian environment, are able to properly resolve all but the most susceptible exchange patterns. As women age, however, meiotic mechanisms erode, making it difficult to resolve even stable exchange events. Interestingly, our preliminary recombination results on MII errors reveal the opposite relationship with maternal age: susceptible pericentromeric exchanges occur most often in the older age group compared with the younger age group. If confirmed, we will have further evidence for multiple risk factors for non-disjunction that act at different times in the meiotic process.

Purpose The aims of this paper is to study the effects of the V/III ratio of indium gallium nitride (InGaN) quantum wells (QWs) on the structural, optical and electrical properties of near-ultraviolet light-emitting diode (NUV-LED). Design/methodology/approach InGaN-based NUV-LED is successfully grown on the c-plane patterned sapphire substrate at atmospheric pressure using metal organic chemical vapor deposition. Findings The indium composition and thickness of InGaN QWs increased as the V/III ratio increased from 20871 to 11824, according to high-resolution X-ray diffraction. The V/III ratio was also found to have an important effect on the surface morphology of the InGaN QWs and thus the surface morphology of the subsequent layers. Apart from that, the electroluminescence measurement revealed that the V/III ratio had a major impact on the light output power (LOP) and the emission peak wavelength of the NUV-LED. The LOP increased by up to 53% at 100 mA, and the emission peak wavelength of the NUV-LED changed to a longer wavelength as the V/III ratio decreased from 20871 to 11824. Originality/value This study discovered a relation between the V/III ratio and the properties of QWs, which resulted in the LOP enhancement of the NUV-LED. High TMIn flow rates, which produced a low V/III ratio, contribute to the increased LOP of NUV-LED.

Purpose This paper aims to describe the fabrication and characterization of current mirror-integrated microelectromechanical systems (MEMS)-based pressure sensor. Design/methodology/approach The integrated pressure-sensing structure consists of three identical 100-µm long and 500-µm wide n-channel MOSFETs connected in a resistive loaded current mirror configuration. The input transistor of the mirror acts as a constant current source MOSFET and the output transistors are the stress sensing MOSFETs embedded near the fixed edge and at the center of a square silicon diaphragm to sense tensile and compressive stresses, respectively, developed under applied pressure. The current mirror circuit was fabricated using standard polysilicon gate complementary metal oxide semiconductor (CMOS) technology on the front side of the silicon wafer and the flexible pressure sensing square silicon diaphragm, with a length of 1,050 µm and width of 88 µm, was formed by bulk micromachining process using tetramethylammonium hydroxide solution on the backside of the wafer. The pressure is monitored by the acquisition of drain voltages of the pressure sensing MOSFETs placed near the fixed edge and at the center of the diaphragm. Findings The current mirror-integrated pressure sensor was successfully fabricated and tested using in-house developed pressure measurement system. The pressure sensitivity of the tested sensor was found to be approximately 0.3 mV/psi (or 44.6 mV/MPa) for pressure range of 0 to 100 psi. In addition, the pressure sensor was also simulated using Intellisuite MEMS Software and simulated pressure sensitivity of the sensor was found to be approximately 53.6 mV/MPa. The simulated and measured pressure sensitivities of the pressure sensor are in close agreement. Originality/value The work reported in this paper validates the use of MOSFETs connected in current mirror configuration for the measurement of tensile and compressive stresses developed in a silicon diaphragm under applied pressure. This current mirror readout circuitry integrated with MEMS pressure-sensing structure is new and fully compatible to standard CMOS processes and has a promising application in the development CMOS-MEMS-integrated smart sensors.

Purpose – This paper aims to analyze the effect of Au wire size and location of hook during wire pulling test to identify the variation of results obtained. Design/methodology/approach – Two hook locations, namely, location A and location B were used to analyze the effect of hook location. Location A was the same as the hook location required by MIL-STD-883E standard, whereas location B was located near to the second bond. The correlation between new purposed failure modes and MIL-STD-883E standard was developed to reflect on the pull strength with the physical failure. Findings – It was observed that fine pitch Au wire has higher variation and lower process capability of pull strength. Au wire pulled by the hook at location B provides a more representative result compared to that at location A. Fifty per cent or more of Au remnant is required to be considered as a good and reliable Au wedge bond based on the new purposed failure modes. Originality/value – The evaluation of gold (Au) wedge bond requires a new proper wire pulling test method. This is due to the large variation obtained from the application of current practice of wire pulling test.

Purpose – The purpose of this paper is to provide a systematic review on technical findings and discuss the feasibility and future of gold (Au) wirebonding in microelectronics packaging. It also aims to study and compare the cost, quality and wear-out reliability performance of Au wirebonding with respect to other wire alloys such as copper (Cu) and silver (Ag) wirebonding. This paper discusses the influence of wire type on the long-term reliability tests. Design/methodology/approach – Literature reviews are conducted based on cost and wire selections of Au, Cu or Ag wirebonding. Detailed wear-out failure findings and wire selection with cost considerations are presented in this review paper. The future and the status of Au wirebonding in microelectronics packaging are discussed in this paper. Findings – This paper briefly reviews selected aspects of the Au ball and other alternative bonding options, focusing on reliability performance, and discusses the future of Au wirebonding in the near future in semiconductor packaging. Practical implications – The paper reveals the technical considerations when choosing the wire types for future microelectronics packaging. Originality/value – The in-depth technical review and strategies of the selection of wire types (Au, Cu or the latest Ag alloy) in microelectronics packaging are discussed in this paper based on previous literature studies.

Purpose – The high density of defects mainly attributed to the presence of silicon oxycarbides, residual C clusters, Si- and C-dangling bonds at or near the SiO2/SiC interface degrades the performance of metal-oxide-semiconductor (MOS) devices. In the effort of further improving the quality and enhancement of the SiC oxides thickness, post-oxidation annealed by a combination of nitric acid (HNO3) and water (H2O) vapor technique on thermally grown wet-oxides is introduced in this work. The paper aims to discuss these issues. Design/methodology/approach – A new technique of post-oxidation annealing (POA) on wet-oxidized n-type 4H-SiC in a combination of HNO3 and H2O vapor at various heating temperatures (70°C, 90°C and 110°C) of HNO3 solution has been introduced in this work. Findings – It has been revealed that the samples annealed in HNO3 + H2O vapour ambient by various heating temperatures of HNO3 solution; particularly at 110°C is able to produce oxide with lower interface-state density and higher breakdown voltage as compared to wet-oxidized sample annealed in N2 ambient. The substrate properties upon oxide removal show surface roughness reduces as the heating temperature of HNO3 solution increases, which is mainly attributed due to the significant reduction of carbon content at the SiC/SiO2 interface by C=N passivation and CO or CO2 out-diffusion. Originality/value – Despite being as a strong oxidizing agent, vaporized HNO3 can also be utilized as nitridation and hydrogen passivation agent in high temperature thermal oxidation ambient and these advantages were demonstrated in 4H-SiC.

Relevance of the work. After finding carbon nanotubes in the so-called silicate “stone pipes” of Dzharakuduk (Uzbekistan) in 2016, we quickly began to accumulate material about discovering carbon nanominerals in similar objects in Kazakhstan, Israel, and India. And after a similar find on the island of Crete (but in carbonate “stone pipes”), it became possible to conduct some generalization for the Mediterranean region. Purpose of the work: identification of the features of the development of carbon nano- and micromineralization in the carbonate “stone pipes” of the island of Crete in comparison with previously known samples from silicate “stone pipes”. Methodology. The samples selected by the authors were studied using optical polarization (ATAMI microscope) and scanning electron microscopy with microdiffraction (SEM LEO SUPRA 50V), differential thermal analysis with mass spectrometric termination (DTA + TG + MS). Results. In the pores and caverns of pyro- and shock-metamorphosed organogenic calcite limestones in the outcrop on the coast of northern Crete (near Malia, Crete, Greece), some fibrous-diverse aggregates of carbon nano- and microminerals (carbon multilayer nano- and microtubes, as well as microflakes of multilayer “graphenes”externally replaced by graphite) with carbonate “stone pipes” almost completely cut off by sea erosion. Conclusions. The first comprehensive study of carbon nano- and micromineralization in the carbonate “stone pipes” of Crete Island allows us to conclude that they are formed as a result of the explosive reaction of silanes that were part of the primary hydrocarbon-like fluid with an aqueous-oxygen atmosphere below the earth’s surface at high temperatures (T> 1250 ° C) and pressure (P> 40 Pa).

Purpose The purpose of this study is to find a new design that can increase the sensitivity of the sensor without sacrificing the linearity. A novel and very efficient method for increasing the sensitivity of MEMS pressure sensor has been proposed for the first time. Rather than perforation, we propose patterned thinning of the diaphragm so that specific regions on it are thinner. This method allows the diaphragm to deflect more in response with regard to the pressure. The best excavation depth has been calculated and a pressure sensor with an optimal pattern for thinned regions has been designed. Compared to the perforated diaphragm with the same pattern, larger output voltage is achieved for the proposed sensor. Unlike the perforations that have to be near the edges of the diaphragm, it is possible for the thin regions to be placed around the center of the diaphragm. This significantly increases the sensitivity of the sensor. In our designation, we have reached a 60 per cent thinning (of the diaphragm area) while perforations larger than 40 per cent degrade the operation of the sensor. The proposed method is applicable to other MEMS sensors and actuators and improves their ultimate performance. Design/methodology/approach Instead of perforating the diaphragm, we propose a patterned thinning scheme which improves the sensor performance. Findings By using thinned regions on the diaphragm rather than perforations, the sensitivity of the sensor was improved. The simulation results show that the proposed design provides larger membrane deflections and higher output voltages compared to the pressure sensors with a normal or perforated diaphragm. Originality/value The proposed MEMS piezoelectric pressure sensor for the first time takes advantage of thinned diaphragm with optimum pattern of thinned regions, larger outputs and larger sensitivity compared with the simple or perforated diaphragm pressure sensors.

Abstract Neogen Corp. (Lansing, MI) has developed a common aqueous extraction method for the detection of mycotoxins in the ELISA or lateral flow format. The Veratox® for Total Aflatoxin ELISA extraction method uses a MAX 2 extraction packet and water in replacement of traditionally used organic solvents. Veratox for Total Aflatoxin has a detection range of 5–50 ppb neat or up to 300 ppb with dilution. The kit development focused on superior cross-reactivity, ability to accurately detect naturally contaminated samples, and utilization of an aqueous extraction method. In two separate validation studies, the Veratox for Total Aflatoxin test kit resulted in average yields of 91–114% in naturally contaminated mycotoxin reference material corn. The cross-reactivity profiles for aflatoxins B1, B2, G1, and G2 were 100, 113, 103, and 93%, respectively. This kit is approved by the Grain Inspection, Packers, and Stockyards Administration.

Purpose The aim of this paper is to present thermal and mechanical durability of conductive tracks screen-printed with silver polymer pastes on flexible magnetic sheets. Design/methodology/approach A test pattern that consisted of three straight lines was printed with two different silver pastes on a flexible magnetic sheet and a polyethylene naphthalate (PEN) foil for comparison. Electrical properties of these lines were examined by resistance measurements and their thickness was measured with a digital microscope on cross sections. Cyclic bending was performed to investigate mechanical properties of prepared samples as well as thermal shocks to analyse their thermal durability. Further, samples after thermal shocks underwent cyclic bending to test influence of thermal exposure on mechanical properties of the prepared samples. Changes in the test lines after the thermal and mechanical tests were assessed by resistance measurements and microscopic analysis of surface and internal structure of the test lines. Findings It was found that the most important factor having an impact on electrical, mechanical and thermal properties of the conductive tracks screen-printed on magnetic sheets is a type of paste used. The samples made with the paste PM-406 exhibited lower resistance because of a higher layer thickness compared to the lines printed with the paste PF-050. The PM-406 layers were revealed to be less durable to mechanical and thermal exposures. An analogical relationship was noticed for the samples made with PM-406 and PF-050 on a PEN foil after thermal shocks and cyclic bending. When magnetic sheets were used as a substrate, a bigger degree of damage was observed for the PF-050 samples, which even lost their electrical continuity after 1,000 bending cycles and thermal cycles, irrespective of their number. Some damage was also noticed in the magnetic sheet after the bending and thermal cycles. Research limitations/implications Further investigations are required to examine the influence of other types of thermal exposure on electrical properties of lines printed on magnetic sheets. Other types of magnetic sheets are also recommended to be investigated as substrate materials. Practical implications The results reported in this study can be useful among others for designers of radio frequency identification (RFID) systems, which are intended to operate in a challenging environment with strong mechanical and thermal exposures. Originality/value This paper contains valuable information concerning mechanical and thermal properties of conductive tracks screen-printed on magnetic sheets which can be used, i.e. for designing of reliable near field communication/high frequency (NFC/HF)-RFID tags suitable for metallic surface.

Purpose The purpose of this paper is to analyse the operation of p-type side gate junctionless silicon transistor (SGJLT) in accumulation region through experimental measurements and 3-D TCAD simulation results. The variation of electric field components, carrier’s concentration and valence band edge energy towards the accumulation region is explored with the aim of finding the origin of SGJLT performance in the accumulation operational condition. Design/methodology/approach The device is fabricated by atomic force microscopy nanolithography on silicon-on-insulator wafer. The output and transfer characteristics of the device are obtained using 3-D Technology Computer Aided Design (TCAD) Sentaurus software and compared with experimental measurement results. The advantages of AFM nanolithography in contact mode and Silicon on Insulator (SOI) technology were implemented to fabricate a simple structure which exhibits the behaviour of field effect transistors. The device has 200-nm channel length, 100-nm gate gap and 4 μm for the distance between the source and drain contacts. The characteristics of the fabricated device were measured using an Agilent HP4156C semiconductor parameter analyzer (SPA). A 3-D TCAD Sentaurus tool is used as the simulation platform. The Boltzmann statistics is adopted because of the low doping concentration of the channel. Hydrodynamic model is taken to be as the main transport model for all simulations, and the quantum mechanical effects are ignored. A doping dependent Masetti mobility model was also included as well as an electric field dependent model with Shockley–Read–Hall (SRH) carrier recombination/generation. Findings We have obtained that the device is a normally on state device mainly because of the lack of work functional difference between the gate and the channel. Analysis of electric field components’ variation, carrier’s concentration and valence band edge energy reveals that increasing the negative gate voltage drives the device into accumulation region; however, it is unable to increase the drain current significantly. The positive slope of the hole quasi-Fermi level in the accumulation region presents mechanism of carriers’ movement from source to drain. The influence of electric field because of drain and gate voltage on charge distribution explains a low increasing of the drain current when the device operates in accumulation regime. Originality/value The proposed side gate junctionless transistors simplify the fabrication process, because of the lack of gate oxide and physical junctions, and implement the atomic force microscopy nanolithography for fabrication process. The optimized structure with lower gap between gate and channel and narrower channel would present the output characteristics near the ideal transistors for next generation of scaled-down devices in both accumulation and depletion region. The presented findings are verified through experimental measurements and simulation results.

Purpose – The present paper aims to propose a basic current mirror-sensing circuit as an alternative to the traditional Wheatstone bridge circuit for the design and development of high-sensitivity complementary metal oxide semiconductor (CMOS)–microelectromechanical systems (MEMS)-integrated pressure sensors. Design/methodology/approach – This paper investigates a novel current mirror-sensing-based CMOS–MEMS-integrated pressure-sensing structure based on the piezoresistive effect in metal oxide field effect transistor (MOSFET). A resistive loaded n-channel MOSFET-based current mirror pressure-sensing circuitry has been designed using 5-μm CMOS technology. The pressure-sensing structure consists of three identical 10-μm-long and 50-μm-wide n-channel MOSFETs connected in current mirror configuration, with its input transistor as a reference MOSFET and output transistors are the pressure-sensing MOSFETs embedded at the centre and near the fixed edge of a silicon diaphragm measuring 100 × 100 × 2.5 μm. This arrangement of MOSFETs enables the sensor to sense tensile and compressive stresses, developed in the diaphragm under externally applied pressure, with respect to the input reference transistor of the mirror circuit. An analytical model describing the complete behaviour of the integrated pressure sensor has been described. The simulation results of the pressure sensor show high pressure sensitivity and a good agreement with the theoretical model has been observed. A five mask level process flow for the fabrication of the current mirror-sensing-based pressure sensor has also been described. An n-channel MOSFET with aluminium gate was fabricated to verify the fabrication process and obtain its electrical characteristics using process and device simulation software. In addition, an aluminium gate metal-oxide semiconductor (MOS) capacitor was fabricated on a two-inch p-type silicon wafer and its CV characteristic curve was also measured experimentally. Finally, the paper presents a comparative study between the current mirror pressure-sensing circuit with the traditional Wheatstone bridge. Findings – The simulated sensitivities of the pressure-sensing MOSFETs of the current mirror-integrated pressure sensor have been found to be approximately 375 and 410 mV/MPa with respect to the reference transistor, and approximately 785 mV/MPa with respect to each other. The highest pressure sensitivities of a quarter, half and full Wheatstone bridge circuits were found to be approximately 183, 366 and 738 mV/MPa, respectively. These results clearly show that the current mirror pressure-sensing circuit is comparable and better than the traditional Wheatstone bridge circuits. Originality/value – The concept of using a basic current mirror circuit for sensing tensile and compressive stresses developed in micro-mechanical structures is new, fully compatible to standard CMOS processes and has a promising application in the development of miniaturized integrated micro-sensors and sensor arrays for automobile, medical and industrial applications.

In the step-by-step roadmap for limiting and eliminating power sources that use fossil fuel, especially coal-fired power, as well as for setting the Vietnamese government targets for developing renewable energy for replacement, solar farms and rooftop solar power, followed by floating photovoltaic (PV) power, are considered the best candidates for meeting the goals of land space, PV system operation efficiency, and meeting environmental goals. In addition to the rapid development of PV cell technology are the government’s incentives and financial support for PV plants on the water surface area, which is still very large. Floating PV plants will strongly attract investors in the near future. This study could help stakeholders in the market understand the economic–technical aspects from analyzing economic–financial indicators of floating PV plants with a capacity of 47.5 MW connected to the national utility grid 110 kV at Da Mi hydropower reservoir in Binh Thuan province, Vietnam, in May 2019. This is the first floating PV plant on the reservoir in Vietnam, and is the property of a third party.

With the development of mineral testing technology and ore deposit geochemistry, titanite has become a hot topic in the study of accessory minerals. Two large-grained titanite crystals from Mogok, Myanmar, were used for a detailed study. In this study, the standard gemmological properties and spectral characteristics of titanite crystals were obtained by Fourier transform in-frared, micro ultraviolet-visible-near-infrared and Raman spectroscopy, respectively, which pro-vide a full set of data. Mineral major and trace elements were analysed using Electron-Probe Mi-croAnalysis (EPMA) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). The purpose of this study is to report spectral characteristics and major and trace elements of Mogok, Myanmar, in order to find new potential titanite standard samples. The two titanite crystals have similar major element compositions, and both grains have relatively low Al content (0.011–0.014 apfu) and Al/Fe ratios (0.157–0.222), but high Fe content (0.063–0.079 apfu). The two titanite crystals have similar chondrite-normalised rare earth element (REE) patterns with significantly Light Rare Earth Element (LREE) (La–Gd) enrichment and deletion of Heavy Rare Earth Element (HREE) (Tb–Lu). The 238U/206Pb ages of the two titanite samples are 43.5 ± 5.8 Ma and 34.0 ± 4.2 Ma, respectively. Generally, magmatic titanite has a low Al/Fe ratio, metamorphic and hydrothermal titanite crystals have extremely low Th/U ratios close to zero, with flat chondrite-normalised REE patterns or depletions in light REEs relative to heavy REEs. Different genetic types of titanite can be distinguished by the characteristics of major and trace elements. Combined chemical features such as REE differentiation, Al/Fe and Th/U ratios with formation temperature, the analysed titanite samples are considered magmatic-hydrothermal titanites. Their 238U/206Pb ages may indicate a potential stage of magmatic hydrothermal conversion.

A total of 73 species of Argia Rambur, 1842 are reported as present from Mexico, Central America and the Lesser Antilles, of which five are new to science and are described here: Argia annae n. sp. (holotype ♂: MEXICO, Veracruz, Puente Texolo, roadside seepages near bridge, 19.4028°N, 96.9867°W, 1065 m, 17 June 2009, Rosser W. Garrison & Natalia von Ellenrieder leg., in CSCA), Argia gonzalezi n. sp. (holotype ♂: MEXICO, Chiapas, 3.5 mi east of Rayón, stream, approximately 17.2058°N, 92.9700°W, 1676 m, 16 July 1965, Dennis R. Paulson leg., in CNIN), A. noveloi n. sp. (holotype ♂: MEXICO, Veracruz, Puente Texolo, 19.4028°N, 96.9867°W, 1065 m, 26 August 1988, Rosser W. Garrison leg., in INECOL), A. paludicola n. sp. (holotype ♂: U. S. A., Arizona, Apache County, Bog Tank, north of Highway 260, 34.0467°N, 109.683°W, 1400 m, 1 July 2016, Pierre Deviche leg., in CSCA) and A. paulsoni n. sp. (holotype ♂: COSTA RICA, San José, 7.5 km northeast of Londres, on road to Rancho Tinamú Lodge, 9.4856°N, 83.9911°W, 700 m, 5 July 2019, William A. Haber leg., in UNH). Redescriptions of male and female are provided for the following species: Argia calida (Hagen, 1861), A. chelata Calvert, 1902, A. deami Calvert, 1902, A. fulgida Navás, 1934, A. herberti Calvert, 1902, A. johannella Calvert, 1907, A. mayi González-Soriano, 2012, A. percellulata Calvert, 1902, A. pocomana Calvert, 1907, A. rogersi Calvert, 1902, A. talamanca Calvert, 1907, A. terira Calvert, 1907, A. underwoodi Calvert, 1907, and A. variabilis Selys, 1865. All 73 species are measured, illustrated, and distinguished from their congeners. The following synonymies are suggested based on examination of type material: A. wilsoni Calvert, 1902, a junior synonym of A. calida (Hagen, 1861), A. plana Calvert, 1902, a junior synonym of A. funebris (Hagen, 1861), and A. trifoliata Fraser, 1942 (Fig. 736), a junior synonym of A. variegata Förster, 1914. Lectotypes are designated for Agrion calidum Hagen, 1861, Agrion funebris Hagen, 1861, and Argia variabilis Selys, 1865. Keys to the 73 known Argia species from Mexico, Middle America and the Lesser Antilles are provided as well as distribution maps based on an examination of over 16,000 specimens.

READING GENESIS WELL: Navigating History, Poetry, Science, and Truth in Genesis 1-11 by C. John Collins. Grand Rapids, MI: Zondervan Academic, 2018. 336 pages. Paperback; $36.99. ISBN: 9780310598572. *C. John Collins makes judicious use of C. S. Lewis throughout his book and offers a reading of the early chapters of Genesis that seeks to avoid both an ahistorical fundamentalist interpretation and a dismissive scientism that views Genesis as bad science by ignorant people. Collins identifies himself as a "religious traditionalist," and he seeks to read Genesis in ways that take seriously the original context of the author and first readers of the text. In doing so, he makes more evident the real meaning of Genesis as a rival creation story to other creation stories circulating at that time in the ancient near East. Collins has a twofold goal. "The first is to provide guidance to those who want to consider how these Bible passages relate to the findings of the sciences. The second is to establish patterns of good theological reading, patterns applicable to other texts" (p. 32). *Collins emphasizes quite rightly that to interpret a text correctly it is important to consider the context. It is context that determines whether the words, "I'm going to kill you" are a lethal threat to life or the joking retort of a friend. Genesis is not trying to do contemporary science, so to read Genesis as opposed to or in support of contemporary science is to rip Genesis from its ancient context in terms of both its literary form and its world view. The story of Genesis is not trying and failing to answer contemporary scientific questions; rather, the story of Genesis is emphasizing that, "all human beings have a common origin, a common predicament, and a common need to know God and have God's image restored in them" (p. 113). *We can understand what Genesis truly means by putting Genesis back into its ancient context. As Collins notes, "I take the purpose of Genesis to begin with opposing the origin stories of other ancient peoples by telling of one true God who made heaven and earth ..." (p. 137). Once Genesis is put back into its context, we can better appreciate the genre of the work. The language of Genesis is not scientific but poetic. Collins notes that we can communicate truths using different kinds of language. In ordinary language, we say, "You are beautiful." In scientific language, we might say, "You exhibit visible signs of youth, health, fertility, and symmetry." In poetic language, we could say, "Shall I compare thee to a summer's day? Thou art more lovely and more temperate: Rough winds do shake the darling buds of May, And summer's lease hath all too short a date." Imagine someone who got out a weather almanac, looked up the speed of winds last May, and replied, "Last May, the winds were unseasonably calm. No rough winds at all. Shakespeare was horrible at correctly noting the weather! What a dunce!" Of course, in writing Sonnet 18, Shakespeare was not trying and failing to compose an accurate weather report. The Bard's purposes, genre, and context are entirely different than meteorology. So, too, Genesis is not trying and failing to provide a scientific account of the origin of sun, moon, and stars--or man. To fault Genesis as a bad science is like faulting Shakespeare as a bad weather man. Collins correctly notes, "To call Genesis 'science,' whether ancient or modern is an enormous literary confusion" (p. 279). *So, if Genesis is not failing to be good science, since it is not even attempting to do science, what is Genesis about? The Genesis account is a correction to the rival stories of the ancient world. Genesis holds, in contrast to the pagan myths, that the sun, moon, and stars are not gods. The heavenly bodies exist to serve humans, to mark time. The idea that nature is not a god is an idea of signal importance, for if the created order is not divine, then the door is open for science to dissect and examine the secrets of nature. Genesis steers a middle course between a radical environmentalism (worshiping nature as divine) and a radical anti-environmentalism (domineering of nature as worthless material). *The role of humankind is also made more plain by contrasting Genesis with rival stories. Collins notes, "In the Mesopotamian stories the gods made humankind to do the work they do not wish to do, but they regret their action and decide to eliminate humanity because people have multiplied and become so noisy that the gods cannot rest (which was their original goal in making man)" (p. 190). *How unlike the God of Abraham who urges human beings to be fruitful and multiply. The Greek poet Hesiod wrote, "Zeus who thunders on high made women to be an evil to mortal men, with a nurture to do evil." By contrast, Genesis proclaims both man and woman to be made in the image and likeness of God. Both man and woman fall to the serpent's temptation. Both man and woman are cared for by God after the Fall. *Reading Genesis Well is a good book, and it could be made even better. At times, there is a great deal of windup before the pitch. At other times, there is needless repetition. For example, Collins writes, "The creation narrative portrays the sun, moon, and stars as makers for the (liturgical) seasons. They are servants to help humankind worship the Maker, not masters themselves worthy of human worship" (p. 293). This is a great point, but the point is made at least three times in the text. *The organization of the text could be improved in places. For example, when Collins quotes Rudolf Bultmann's famous assertion, "It is impossible to use the electric light and the wireless [radio] and to avail ourselves of modern medical and surgical discoveries, and at the same time to believe in the New Testament world of spirits and miracles," he does not respond to this assertion until pages later. *In places, not just form but substance can be improved. Collins quotes with approval James Packer saying, "The church no more created the canon [of scripture] than Newton created the law of gravity; recognition is not creation." But this is not quite right. The New Testament was written by early leaders of the church, such as Paul, Mark, Luke, Matthew, and John. It was the Council of Rome (p. 382) that fixed the biblical canon which was in some state of flux until then. The New Testament arose from the leaders of the early church and was cast into its current form by the leaders of the patristic church. That is much more than a mere recognition. Collins touches on the monogensism-polygenism question but does not address the dispute at sufficient length. *None of these quibbles should deter readers from profiting from Collins's research. Reading Genesis Well can indeed help us better understand one of the most ancient, most important, and most influential texts of all time. *Reviewed by Christopher Kaczor, Professor of Philosophy, Loyola Marymount University, 1 LMU Drive, Los Angeles, CA 90045.

Objectives: The objective of the study was to determine maternal mortality ratio (MMR), maternal near miss incidence ratio (MNM IR), MNM to mortality ratio (MNM: MD), and mortality index (MI) and to know the prevalence, demographic distribution, causes and feto-maternal outcome of maternal near miss and maternal deaths. Methods: A retrospective review of near miss and maternal mortality over a period of 20 months in a tertiary teaching hospital in Punjab. Results: MMR was 998 MNM IR was 24.20/1000 live births. Maternal near miss mortality ratio was 2.4:1. MI was 29.21%. The most common cause of maternal mortality was hypertension, which was seen in 14 (53.84%) women. Among near miss cases, the most common complication noted was hemorrhage, seen in 40 (63.49%) cases. Among maternal deaths, 7 (26.92%) women delivered vaginally, 6 (23.07%) women underwent emergency cesarean section. Among near miss cases, 20 (31.74%) women delivered vaginally, 13 (20.63%) women underwent cesarean section while 7 (11.11%) had cesarean hysterectomy. Laparotomy for ruptured ectopic pregnancy was done in 6 (9.52%) women, 7 (11.11%) women had dilatation and evacuation, 3 (4.76%) had exploration of Uterovaginal canal. Preterm birth has seen in 8 (12.69%) in maternal deaths and 23(36.50%) in maternal near miss. Intrauterine fetal demise occurred in 4 (6.34%) in maternal deaths and 2 (4.87%) in near miss. Conclusion: The review of near miss cases is important to identify response of health care system to medical emergencies and provides opportunities to improve the quality of service.

Abstract Background Analysis of “maternal near-misses” is expected to facilitate assessment of the quality of maternity care in health facilities. Therefore, this study aimed to investigate incidence, risk factors and causes of maternal near-misses (MNM) admitted to the intensive care unit (ICU) within five years by using the World Health Organization’s MNM approach. Methods A five-year retrospective study was conducted in Subei People’s Hospital of Yangzhou, Jiangsu Province from January 1, 2015 to December 31, 2019. Risk factors in 65 women with MNM in the intensive care unit (ICU) were explored by using chi-square tests and multivariable logistic regression analysis. Causes and interventions in MNM were investigated by descriptive analysis. Results Average maternal near-miss incidence ratio (MNMIR) for ICU admission was 3.5 per 1000 live births. Average maternal mortality ratio (MMR) was 5 per 100,000 live births. MI for all MNM was 0.7%. Steady growth of MNMIR in ICU was witnessed in the five-year study period. Women who were referred from other hospitals (aOR 3.32; 95%CI 1.40–7.32) and had cesarean birth (aOR 4.96; 95%CI 1.66–14.86) were more likely to be admitted in ICU. Neonates born to women with MNM admitted in ICU had lower birthweight (aOR 5.41; 95%CI 2.53–11.58) and Apgar score at 5 min (aOR 6.39; 95%CI 2.20–18.55) compared with women with MNM outside ICU. ICU admission because of MNM occurred mostly postpartum (n = 63; 96.9%). Leading direct obstetric causes of MNM admitted in ICU were hypertensive diseases of pregnancy (n = 24; 36.9%), followed by postpartum hemorrhage (n = 14; 21.5%), while the leading indirect obstetric cause was heart diseases (n = 3; 4.6%). Conclusions Risk factors that were associated with MNM in ICU were referral and cesarean birth. Hypertensive disease of pregnancy and postpartum hemorrhage were the main obstetric causes of MNM in ICU. These findings would provide guidance to improve professional skills of primary health care providers and encourage vaginal birth in the absence of medical indications for cesarean birth.

AbstractThe developing advances of microresonator-based Kerr cavity solitons have enabled versatile applications ranging from communication, signal processing to high-precision measurements. Resonator dispersion is the key factor determining the Kerr comb dynamics. Near the zero group-velocity-dispersion (GVD) regime, low-noise and broadband microcomb sources are achievable, which is crucial to the application of the Kerr soliton. When the GVD is almost vanished, higher-order dispersion can significantly affect the Kerr comb dynamics. Although many studies have investigated the Kerr comb dynamics near the zero-dispersion regime in microresonator or fiber ring system, limited by dispersion profiles and dispersion perturbations, the near-zero-dispersion soliton structure pumped in the anomalous dispersion side is still elusive so far. Here, we theoretically and experimentally investigate the microcomb dynamics in fiber-based Fabry-Perot microresonator with ultra-small anomalous GVD. We obtain 2/3-octave-spaning microcombs with ~10 GHz spacing, >84 THz span, and >8400 comb lines in the modulational instability (MI) state, without any external nonlinear spectral broadening. Such widely-spanned MI combs are also able to enter the soliton state. Moreover, we report the first observation of anomalous-dispersion based near-zero-dispersion solitons, which exhibits a local repetition rate up to 8.6 THz, an individual pulse duration <100 fs, a span >32 THz and >3200 comb lines. These two distinct comb states have their own advantages. The broadband MI combs possess high conversion efficiency and wide existing range, while the near-zero-dispersion soliton exhibits relatively low phase noise and ultra-high local repetition rate. This work complements the dynamics of Kerr cavity soliton near the zero-dispersion regime, and may stimulate cross-disciplinary inspirations ranging from dispersion-controlled microresonators to broadband coherent comb devices.

Purpose The design, fabrication and experimental validation of defected microstrip structure (DMS) are proposed to address the problem of near-end crosstalk (NEXT) and far-end crosstalk (FEXT) between the microstrip transmission lines in a printed circuit board. Design/methodology/approach The proposed DMS evolved with the combination of spur line (L-shaped DMS) and U-shaped DMS topologies. This technique reduces the strength of electromagnetic coupling and suppresses crosstalk by optimizing the capacitive and inductive coupling ratio between the linked microstrip lines. The practical inductance value is much more significant in DMS than in defected ground structures (DGS), but the capacitance value remains the same. Findings A DMS unit is etched on the aggressor microstrip line instead of the DGS circuit. Because there is no leakage via the ground plane and the circuit size is far smaller than with DGS, the enclosure issue is disregarded. DMS structures have a larger effective inductance and are resistant to electromagnetic interference. A tightly coupled transmission line structure with minimal separation between the coupled microstrip line is designed using DMS. Further research must be conducted to improve the NEXT, FEXT and spacing between the transmission lines. Originality/value Simulation and actual measurement results show that the proposed DMS structure can effectively suppress crosstalk by analysing the S-parameters, namely, S_12, S_13 and S_14, with measured values of 1.48 dB, 20.65 dB and 21.099 dB, respectively. The data rate is measured to be 1.34 Gbps as per the eye diagram characterization. The results show that the NEXT and FEXT are reduced by approximately 20 dB in the frequency range of 1–11 GHz for mixed signals. The substantial measured results in the vector network analyser coincide with the computer simulation technology microwave studio suite simulation results.

Modification of polylactic acid (PLA) by chain extension is a method used to improve its melt strength and heat resistance. In this study, the chemical structure, viscosity average molecular weight, thermal properties, melt viscosity, mechanical properties and Vicat softening temperature of PLA before and after the modification were measured by Fourier-transform infrared spectroscopy (FTIR), a viscometer (Mv), differential scanning calorimetry (DSC), a melt index instrument (MI), a rotary rheometer, a universal material testing machine, and a Vicat softening temperature tester, respectively, to characterize the effect of chemically modifying PLA with KL-E4370. The experimental results showed that the epoxy group contained in KL-E4370 reacted with the carboxyl group of PLA. In addition, the modified PLA showed increased molecular weight, enhanced melt strength, decreased melt fluidity, a significantly decreased melt index, significantly increased complex viscosity and modulus, enhanced impact and tensile strengths, and an increased Vicat softening temperature. When the content of KL-E4370 was 0.1%, the viscosity average molar mass increased from 2.88×103 g/mol (that of neat PLA) to 4.02×103 g/mol, the crystallinity increased from 17.0% (that of neat PLA) to 32.5%, the melt index decreased from 6.0 g/10 min (that of neat PLA) to 2.2 g/10 min, the Vicat softening temperature increased from 67.9 °C (that of neat PLA) to 160.1 °C, and the heat resistance of PLA was improved significantly

This paper numerically studies the dynamics of Symmetrical-wedge shock intersection under sinusoidal supersonic oscillation conditions. The 15◦ symmetrical wedges are used as the shock generator, the sinusoidal oscillation is used as the inflow condition. Two forms are considered:(I)The fluctuation amplitude is kept constant(A=1.4), the influence of the fluctuation frequency from 4kHz with a step of 2kHz to 10kHz on the shock wave system is considered. (II) Keeping the frequency constant (f=10kHz), the effect of three amplitudes (A=1.0,1.4,1.8) on shock waves is considered. A detailed analysis of unsteady flow features, including the Mach stem growth, the swing of slip lines, pressure evolution, peculiar pressure wave phenomenon are presented with a focus on the bi-directional regular intersection (RI↔MI) Mach intersection transition process. The study found that:RI↔MI always occurs near the von Neumann solution, there are premature transformations and hysteresis. The higher the frequency, the more obvious the hysteresis and premature transformation are, the more obvious the swing of slip lines is. The lower the frequency, the longer the bi-directional transition time of the RI↔MI, the greater the maximum height of the Mach stem, the more frequent the triple points' pressure fluctuation. In addition, the oscillating flow will cause the propagation of pressure waves in the slip line channel and the transition from transverse waves to longitudinal waves. Under the different amplitudes, the greater the amplitude is, the greater the height of the Mach stem is. When the amplitude is maximum, the evolution of the detached shock wave will lead to the complexity of the system.

As opposed to the case of shallow mixing layers forming between parallel streams of unequal velocities and equal densities, the spatial development of the mixing interface (MI) between two parallel streams of unequal velocities and sufficiently large density contrast is controlled by the formation of a spatially developing, lock-exchange-like flow in transverse planes. Buoyancy effects are driven by the presence of a vertical density interface near the splitter plate. Eddy-resolving numerical simulations conducted in a wide and very long channel are used to investigate the mean flow structure and the effects of the lock-exchange-like flow and the associated coherent structures on mixing and the capacity of the flow to entrain sediment from the channel bed. When the two streams have unequal densities, quasi-two-dimensional Kelvin–Helmholtz (KH) vortices still form near the MI origin, but their coherence is lost over a much shorter distance compared with the case with no density contrast, and their cores are severely stretched in the transverse direction. A main cell of recirculating (cross-) flow forms in the mean flow, in between the fronts of the near-bed intrusion of heavier fluid and the free-surface intrusion of lighter fluid. The instantaneous flow fields contain streamwise-oriented vortical cells along the interface separating the regions containing heavier and lighter fluids. These vortical cells play an important role in enhancing mixing, similar to the KH billows forming in a classical lock-exchange flow. The regions of highest turbulence amplification are situated next to the boundaries of the main recirculating cell. Once the oscillating fronts of the intrusions get sufficiently close to the channel sidewalls, streamwise cells of secondary flow form near the channel boundaries. For cases with a strong density contrast, the free-surface mixing pattern is not a good indicator of mixing between the two streams. For the same flow velocities in the incoming channels, the two streams mix faster with increasing density difference between the two streams. This is because, as opposed to the KH vortices, coherent structures induced by the formation of the lock-exchange-like flow maintain their coherence and capacity to induce mixing at very large distances from the splitter plate. Meanwhile, the redistribution of the streamwise momentum leading to uniform, fully developed flow over the whole cross-section is delayed by buoyancy effects. Away from the splitter plate, the region with the highest sediment entrainment potential is situated next to the edge of the main recirculation cell on the high-speed side of the channel. For the same flow velocities in the incoming channels, the sediment entrainment capacity of the flow is much larger in the simulations conducted with density contrast between the incoming streams and peaks for the case when the faster stream contains the denser fluid.

IntroductionThe common origin of the adjective “corporeal” and the noun “corpse” in the Latin root corpus points to the value of mortuary practices for investigating how the human body is objectified. In post-mortem rituals, the body—formerly the manipulator of objects—becomes itself the object that is manipulated. Thus, these funerary rituals provide a type of double reflexivity, where the object and subject of manipulation can be used to reciprocally illuminate one another. To this extent, any consideration of corporeality can only benefit from a discussion of how the body is objectified through mortuary practices. This paper offers just such a discussion with respect to a selection of two contrasting mortuary practices, in the context of the prehistoric past and the Classical Era respectively. At the most general level, we are motivated by the same intellectual impulse that has stimulated expositions on corporeality, materiality, and incarnation in areas like phenomenology (Merleau-Ponty 77–234), Marxism (Adorno 112–119), gender studies (Grosz vii–xvi), history (Laqueur 193–244), and theology (Henry 33–53). That is to say, our goal is to show that the body, far from being a transparent frame through which we encounter the world, is in fact a locus where historical, social, cultural, and psychological forces intersect. On this view, “the body vanishes as a biological entity and becomes an infinitely malleable and highly unstable culturally constructed product” (Shilling 78). However, for all that the cited paradigms offer culturally situated appreciations of corporeality; our particular intellectual framework will be provided by cognitive science. Two reasons impel us towards this methodological choice.In the first instance, the study of ritual has, after several decades of stagnation, been rewarded—even revolutionised—by the application of insights from the new sciences of the mind (Whitehouse 1–12; McCauley and Lawson 1–37). Thus, there are good reasons to think that ritual treatments of the body will refract historical and social forces through empirically attested tendencies in human cognition. In the present connection, this means that knowledge of these tendencies will reward any attempt to theorise the objectification of the body in mortuary rituals.In the second instance, because beliefs concerning the afterlife can never be definitively judged to be true or false, they give free expression to tendencies in cognition that are otherwise constrained by the need to reflect external realities accurately. To this extent, they grant direct access to the intuitive ideas and biases that shape how we think about the world. Already, this idea has been exploited to good effect in areas like the cognitive anthropology of religion, which explores how counterfactual beings like ghosts, spirits, and gods conform to (and deviate from) pre-reflective cognitive patterns (Atran 83–112; Barrett and Keil 219–224; Barrett and Reed 252–255; Boyer 876–886). Necessarily, this implies that targeting post-mortem treatments of the body will offer unmediated access to some of the conceptual schemes that inform thinking about human corporeality.At a more detailed level, the specific methodology we propose to use will be provided by conceptual blending theory—a framework developed by Gilles Fauconnier, Mark Turner, and others to describe how structures from different areas of experience are creatively blended to form a new conceptual frame. In this system, a generic space provides the ground for coordinating two or more input spaces into a blended space that synthesises them into a single output. Here this would entail using natural or technological processes to structure mortuary practices in a way that satisfies various psychological needs.Take, for instance, W.B. Yeats’s famous claim that “Too long a sacrifice / Can make a stone of the heart” (“Easter 1916” in Yeats 57-8). Here, the poet exploits a generic space—that of everyday objects and the effort involved in manipulating them—to coordinate an organic input from that taxonomy (the heart) with an inorganic input (a stone) to create the blended idea that too energetic a pursuit of an abstract ideal turns a person into an unfeeling object (the heart-as-stone). Although this particular example corresponds to a familiar rhetorical figure (the metaphor), the value of conceptual blending theory is that it cuts across distinctions of genre, media, language, and discourse level to provide a versatile framework for expressing how one area of human experience is related to another.As indicated, we will exploit this versatility to investigate two ways of objectifying the body through the examination of two contrasting mortuary practices—cremation and inhumation—against different cultural horizons. The first of these is the conceptualisation of the body as an object of a technical process, where the post-mortem cremation of the corpse is analogically correlated with the metallurgical refining of ore into base metal. Our area of focus here will be Bronze Age cremation practices. The second conceptual scheme we will investigate focuses on treatments of the body as a vegetable object; here, the relevant analogy likens the inhumation of the corpse to the planting of a seed in the soil from which future growth will come. This discussion will centre on the Classical Era. Burning: The Body as Manufactured ObjectThe Early and Middle Bronze Age in Western Europe (2500-1200 BCE) represented a period of change in funerary practices relative to the preceding Neolithic, exemplified by a move away from the use of Megalithic monuments, a proliferation of grave goods, and an increase in the use of cremation (Barrett 38-9; Cooney and Grogan 105-121; Brück, Material Metaphors 308; Waddell, Bronze Age 141-149). Moreover, the Western European Bronze Age is characterised by a shift away from communal burial towards single interment (Barrett 32; Bradley 158-168). Equally, the Bronze Age in Western Europe provides us with evidence of an increased use of cist and pit cremation burials concentrated in low-lying areas (Woodman 254; Waddell, Prehistoric 16; Cooney and Grogan 105-121; Bettencourt 103). This greater preference for lower-lying location appears to reflect a distinctive change in comparison to the distribution patterns of the Neolithic burials; these are often located on prominent, visible aspects of a landscape (Cooney and Grogan 53-61). These new Bronze Age burial practices appear to reflect a distancing in relation to the territories of the “old ancestors” typified by Megalithic monuments (Bettencourt 101-103). Crucially, the Bronze Age archaeological record provides us with evidence that indicates that cremation was becoming the dominant form of deposition of human remains throughout Central and Western Europe (Sørensen and Rebay 59-60).The activities associated with Bronze Age cremations such as the burning of the body and the fragmentation of the remains have often been considered as corporeal equivalents (or expressions) of the activities involved in metal (bronze) production (Brück, Death 84-86; Sørensen and Rebay 60–1; Rebay-Salisbury, Cremations 66-67). There are unequivocal similarities between the practices of cremation and contemporary bronze production technologies—particularly as both processes involve the transformation of material through the application of fire at temperatures between 700 ºC to 1000 ºC (Musgrove 272-276; Walker et al. 132; de Becdelievre et al. 222-223).We assert that the technologies that define the European Bronze Age—those involved in alloying copper and tin to produce bronze—offered a new conceptual frame that enabled the body to be objectified in new ways. The fundamental idea explored here is that the displacement of inhumation by cremation in the European Bronze Age was motivated by a cognitive shift, where new smelting technologies provided novel conceptual metaphors for thinking about age-old problems concerning human mortality and post-mortem survival. The increased use of cremation in the European Bronze Age contrasts with the archaeological record of the Near Eastern—where, despite the earlier emergence of metallurgy (3300–3000 BCE), we do not see a notable proliferation in the use of cremation in this region. Thus, mortuary practices (i.e. cremation) provide us with an insight into how Western European Bronze Age cultures mediated the body through changes in technological objects and processes.In the terminology of conceptual blending, the generic space in question centres on the technical manipulation of the material world. The first input space is associated with the anxiety attending mortality—specifically, the cessation of personal identity and the extinction of interpersonal relationships. The second input space represents the technical knowledge associated with bronze production; in particular, the extraction of ore from source material and its mixing with other metals to form an alloy. The blended space coordinates these inputs to objectify the human body as an object that is ritually transformed into a new but more durable substance via the cremation process. In this contention we use the archaeological record to draw a conceptual parallel between the emergence of bronze production technology—centring on transition of naturally occurring material to a new subsistence (bronze)—and the transitional nature of the cremation process.In this theoretical framework, treating the body as a mixture of substances that can be reduced to its constituents and transformed through technologies of cremation enabled Western European Bronze Age society to intervene in the natural process of putrefaction and transform the organic matter into something more permanent. This transformative aspect of the cremation is seen in the evidence we have for secondary burial practices involving the curation and circulation of cremated bones of deceased members of a group (Brück, Death 87-93). This evidence allows us to assert that cremated human remains and objects were considered products of the same transformation into a more permanent state via burning, fragmentation, dispersal, and curation. Sofaer (62-69) states that the living body is regarded as a person, but as soon as the transition to death is made, the body becomes an object; this is an “ontological shift in the perception of the body that assumes a sudden change in its qualities” (62).Moreover, some authors have proposed that the exchange of fragmented human remains was central to mortuary practices and was central in establishing and maintaining social relations (Brück, Death 76-88). It is suggested that in the Early Bronze Age the perceptions of the human body mirrored the perceptions of objects associated with the arrival of the new bronze technology (Brück, Death 88-92). This idea is more pronounced if we consider the emergence of bronze technology as the beginning of a period of capital intensification of natural resources. Through this connection, the Bronze Age can be regarded as the point at which a particular natural resource—in this case, copper—went through myriad intensive manufacturing stages, which are still present today (intensive extraction, production/manufacturing, and distribution). Unlike stone tool production, bronze production had the addition of fire as the explicit method of transformation (Brück, Death 88-92). Thus, such views maintain that the transition achieved by cremation—i.e. reducing the human remains to objects or tokens that could be exchanged and curated relatively soon after the death of the individual—is equivalent to the framework of commodification connected with bronze production.A sample of cremated remains from Castlehyde in County Cork, Ireland, provides us with an example of a Bronze Age cremation burial in a Western European context (McCarthy). This is chosen because it is a typical example of a Bronze Age cremation burial in the context of Western Europe; also, one of the authors (MG) has first-hand experience in the analysis of its associated remains. The Castlehyde cremation burial consisted of a rectangular, stone-lined cist (McCarthy). The cist contained cremated, calcined human remains, with the fragments generally ranging from a greyish white to white in colour; this indicates that the bones were subject to a temperature range of 700-900ºC. The organic content of bone was destroyed during the cremation process, leaving only the inorganic matrix (brittle bone which is, often, described as metallic in consistency—e.g. Gejvall 470-475). There is evidence that remains may have been circulated in a manner akin to valuable metal objects. First of all, the absence of long bones indicates that there may have been a practice of removing salient remains as curatable records of ancestral ties. Secondly, remains show traces of metal staining from objects that are no longer extant, which suggests that graves were subject to secondary burial practices involving the removal of metal objects and/or human bone. To this extent, we can discern that human remains were being processed, curated, and circulated in a similar manner to metal objects.Thus, there are remarkable similarities between the treatment of the human body in cremation and bronze metal production technologies in the European Bronze Age. On the one hand, the parallel between smelting and cremation allowed death to be understood as a process of transformation in which the individual was removed from processes of organic decay. On the other hand, the circulation of the transformed remains conferred a type of post-mortem survival on the deceased. In this way, cremation practices may have enabled Bronze Age society to symbolically overcome the existential anxiety concerning the loss of personhood and the breaking of human relationships through death. In relation to the former point, the resurgence of cremation in nineteenth century Europe provides us with an example of how the disposal of a human body can be contextualised in relation to socio-technological advancements. The (re)emergence of cremation in this period reflects the post-Enlightenment shift from an understanding of the world through religious beliefs to the use of rational, scientific approaches to examine the natural world, including the human body (and death). The controlled use of fire in the cremation process, as well as the architecture of crematories, reflected the industrial context of the period (Rebay-Salisbury, Inhumation 16).With respect to the circulation of cremated remains, Smith suggests that Early Medieval Christian relics of individual bones or bone fragments reflect a reconceptualised continuation of pre-Christian practices (beginning in Christian areas of the Roman Empire). In this context, it is claimed, firstly, that the curation of bone relics and the use of mobile bone relics of important, saintly individuals provided an embodied connection between the sacred sphere and the earthly world; and secondly, that the use of individual bones or fragments of bone made the Christian message something portable, which could be used to reinforce individual or collective adherence to Christianity (Smith 143-167). Using the example of the Christian bone relics, we can thus propose that the curation and circulation of Bronze Age cremated material may have served a role similar to tools for focusing religiously oriented cognition. Burying: The Body as a Vegetable ObjectGiven that the designation “the Classical Era” nominates the entirety of the Graeco-Roman world (including the Near East and North Africa) from about 800 BCE to 600 CE, there were obviously no mortuary practices common to all cultures. Nevertheless, in both classical Greece and Rome, we have examples of periods when either cremation or inhumation was the principal funerary custom (Rebay-Salisbury, Inhumation 19-21).For instance, the ancient Homeric texts inform us that the ancient Greeks believed that “the spirit of the departed was sentient and still in the world of the living as long as the flesh was in existence […] and would rather have the body devoured by purifying fire than by dogs or worms” (Mylonas 484). However, the primary sources and archaeological record indicate that cremation practices declined in Athens circa 400 BCE (Rebay-Salisbury, Inhumation 20). With respect to the Roman Empire, scholarly opinion argues that inhumation was the dominant funerary rite in the eastern part of the Empire (Rebay-Salisbury, Inhumation 17-21; Morris 52). Complementing this, the archaeological and historical record indicates that inhumation became the primary rite throughout the Roman Empire in the first century CE. Inhumation was considered to be an essential rite in the context of an emerging belief that a peaceful afterlife was reflected by a peaceful burial in which bodily integrity was maintained (Rebay-Salisbury, Inhumation 19-21; Morris 52; Toynbee 41). The question that this poses is how these beliefs were framed in the broader discourses of Classical culture.In this regard, our claim is that the growth in inhumation was driven (at least in part) by the spread of a conceptual scheme, implicit in Greek fertility myths that objectify the body as a seed. The conceptual logic here is that the post-mortem continuation of personal identity is (symbolically) achieved by objectifying the body as a vegetable object that will re-grow from its own physical remains. Although the dominant metaphor here is vegetable, there is no doubt that the motivating concern of this mythological fabulation is human mortality. As Jon Davies notes, “the myths of Hades, Persephone and Demeter, of Orpheus and Eurydice, of Adonis and Aphrodite, of Selene and Endymion, of Herakles and Dionysus, are myths of death and rebirth, of journeys into and out of the underworld, of transactions and transformations between gods and humans” (128). Thus, such myths reveal important patterns in how the post-mortem fate of the body was conceptualised.In the terminology of mental mapping, the generic space relevant to inhumation contains knowledge pertaining to folk biology—specifically, pre-theoretical ideas concerning regeneration, survival, and mortality. The first input space attaches to human mortality; it departs from the anxiety associated with the seeming cessation of personal identity and dissolution of kin relationships subsequent to death. The second input space is the subset of knowledge concerning vegetable life, and how the immersion of seeds in the soil produces a new generation of plants with the passage of time. The blended space combines the two input spaces by way of the funerary script, which involves depositing the body in the soil with a view to securing its eventual rebirth by analogy with the sprouting of a planted seed.As indicated, the most important illustration of this conceptual pattern can be found in the fertility myths of ancient Greece. The Homeric Hymns, in particular, provide a number of narratives that trace out correspondences between vegetation cycles, human mortality, and inhumation, which inform ritual practice (Frazer 223–404; Carney 355–65; Sowa 121–44). The Homeric Hymn to Demeter, for instance, charts how Persephone is abducted by Hades, god of the dead, and taken to his underground kingdom. While searching for her missing daughter, Demeter, goddess of fertility, neglects the earth, causing widespread devastation. Matters are resolved when Zeus intervenes to restore Persephone to Demeter. However, having ingested part of Hades’s kingdom (a pomegranate seed), Persephone is obliged to spend half the year below ground with her captor and the other half above ground with her mother.The objectification of Persephone as both a seed and a corpse in this narrative is clearly signalled by her seasonal inhumation in Hades’ chthonic realm, which is at once both the soil and the grave. And, just as the planting of seeds in autumn ensures rebirth in spring, Persephone’s seasonal passage from the Kingdom of the Dead nominates the individual human life as just one season in an endless cycle of death and rebirth. A further signifying element is added by the ingestion of the pomegranate seed. This is evocative of her being inseminated by Hades; thus, the coordination of vegetation cycles with life and death is correlated with secondary transition—that from childhood to adulthood (Kerényi 119–183).In the examples given, we can see how the Homeric Hymn objectifies both the mortal and sexual destiny of the body in terms of thresholds derived from the vegetable world. Moreover, this mapping is not merely an intellectual exercise. Its emotional and social appeal is visible in the fact that the Eleusinian mysteries—which offered the ritual homologue to the Homeric Hymn to Demeter—persisted from the Mycenaean period to 396 CE, one of the longest recorded durations for any ritual (Ferguson 254–9; Cosmopoulos 1–24). In sum, then, classical myth provided a precedent for treating the body as a vegetable object—most often, a seed—that would, in turn, have driven the move towards inhumation as an important mortuary practice. The result is to create a ritual form that makes key aspects of human experience intelligible by connecting them with cyclical processes like the seasons of the year, the harvesting of crops, and the intergenerational oscillation between the roles of parent and child. Indeed, this pattern remains visible in the germination metaphors and burial practices of contemporary religions such as Christianity, which draw heavily on the symbolism associated with mystery cults like that at Eleusis (Nock 177–213).ConclusionWe acknowledge that our examples offer a limited reflection of the ethnographic and archaeological data, and that they need to be expanded to a much greater degree if they are to be more than merely suggestive. Nevertheless, suggestiveness has its value, too, and we submit that the speculations explored here may well offer a useful starting point for a larger survey. In particular, they showcase how a recurring existential anxiety concerning death—involving the fear of loss of personal identity and kinship relations—is addressed by different ways of objectifying the body. Given that the body is not reducible to the objects with which it is identified, these objectifications can never be entirely successful in negotiating the boundary between life and death. In the words of Jon Davies, “there is simply no let-up in the efforts by human beings to transcend this boundary, no matter how poignantly each failure seemed to reinforce it” (128). For this reason, we can expect that the record will be replete with conceptual and cognitive schemes that mediate the experience of death.At a more general level, it should also be clear that our understanding of human corporeality is rewarded by the study of mortuary practices. 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Critique of Ability In July 2008, we could be on the eve of an enormously important shift in disability in Australia. One sign of change is the entry into force on 3 May 2008 of the United Nations convention on the Rights of Persons with Disabilities, which will now be adopted by the Rudd Labor government. Through this, and other proposed measures, the Rudd government has indicated its desire for a seachange in the area of disability. Bill Shorten MP, the new Parliamentary Secretary for Disabilities and Children’s Services has been at pains to underline his commitment to a rights-based approach to disability. In this inaugural speech to Parliament, Senator Shorten declared: I believe the challenge for government is not to fit people with disabilities around programs but for programs to fit the lives, needs and ambitions of people with disabilities. The challenge for all of us is to abolish once and for all the second-class status that too often accompanies Australians living with disabilities. (Shorten, “Address in reply”; see also Shorten, ”Speaking up”) Yet if we listen to the voices of people with disability, we face fundamental issues of justice, democracy, equality and how we understand the deepest aspects of ourselves and our community. This is a situation that remains dire and palpably unjust, as many people with disabilities have attested. Elsewhere I have argued (Goggin and Newell) that disability constitutes a systemic form of exclusion and othering tantamount to a “social apartheid” . While there have been improvements and small gains since then, the system that reigns in Australia is still fundamentally oppressive. Nonetheless, I would suggest that through the rise of the many stranded movements of disability, the demographic, economic and social changes concerning impairment, we are seeing significant changes in how we understand impairment and ability (Barnes, Oliver and Barton; Goggin and Newell, Disability in Australia; Snyder, Brueggemann, and Garland-Thomson; Shakespeare; Stiker). There is now considerable, if still incomplete, recognition of disability as a category that is constituted through social, cultural, and political logics, as well as through complex facets of impairment, bodies (Corker and Shakespeare), experiences, discourses (Fulcher), and modes of materiality and subjectivity (Butler), identity and government (Tremain). Also there is growing awareness of the imbrication of disability and other categories such as sex and gender (Fine and Asch; Thomas), race, age, culture, class and distribution of wealth (Carrier; Cole; Davis, Bending over Backwards, and Enforcing Normalcy; Oliver; Rosenblum and Travis), ecology and war (Bourke; Gerber; Muir). There are rich and wide-ranging debates that offer fundamental challenges to the suffocating grip of the dominant biomedical model of disability (that conceives disability as individual deficit — for early critiques see: Borsay; Walker), as well as the still influential and important (if at times limiting) social model of disability (Oliver; Barnes and Mercer; Shakespeare). All in all,there have been many efforts to transform the social and political relations of disability. If disability has been subject to considerable examination, there has not yet been an extended, concomitant critique of ability. Nor have we witnessed a thoroughgoing recognition of unmarked, yet powerful operations of ability in our lives and thought, and the potential implications of challenging these. Certainly there have been important attempts to reframe the relationship between “ability” and “disability” (for example, see Jones and Mark). And we are all familiar with the mocking response to some neologisms that seek to capture this, such as the awkward yet pointed “differently-abled.” Despite such efforts we lack still a profound critique of ability, an exploration of “able”, the topic that this special issue invites us to consider. If we think of the impact and significance of “whiteness”, as a way to open up space for how to critically think about and change concepts of race; or of “masculinity” as a project for thinking about gender and sexuality — we can see that this interrogation of the unmarked category of “able” and “ability” is much needed (for one such attempt, see White). In this paper I would like to make a small contribution to such a critique of ability, by considering what the concept of innovation and its contemporary rhetorics have to offer for reframing disability. Innovation is an important discourse in contemporary life. It offers interesting possibilities for rethinking ability — and indeed disability. And it is this relatively unexplored prospect that this paper seeks to explore. Beyond Access, Equity & Diversity In this scene of disability, there is attention being given to making long over-due reforms. Yet the framing of many of these reforms, such as the strengthening of national and international legal frameworks, for instance, also carry with them considerable problems. Disability is too often still seen as something in need of remediation, or special treatment. Access, equity, and anti-discrimination frameworks offer important resources for challenging this “special” treatment, so too do the diversity approaches which have supplemented or supplanted them (Goggin and Newell, “Diversity as if Disability Mattered”). In what new ways can we approach disability and policies relevant to it? In a surprisingly wide range of areas, innovation has featured as a new, cross-sectoral approach. Innovation has been a long-standing topic in science, technology and economics. However, its emergence as master-theme comes from its ability to straddle and yoke together previously diverse fields. Current discussions of innovation bring together and extend work on the information society, the knowledge economy, and the relationships between science and technology. We are now familiar for instance with arguments about how digital networked information and communications technologies and their consumption are creating new forms of innovation (Benkler; McPherson; Passiante, Elia, and Massari). Innovation discourse has extended to many other unfamiliar realms too, notably the area of social and community development, where a new concept of social innovation is now proposed (Mulgan), often aligned with new ideas of social entrepreneurship that go beyond earlier accounts of corporate social responsibility. We can see the importance of innovation in the ‘creative industries’ discourses and initiatives which have emerged since the 1990s. Here previously distinct endeavours of arts and culture have become reframed in a way that puts their central achievement of creativity to the fore, and recognises its importance across all sorts of service and manufacturing industries, in particular. More recently, theorists of creative industries, such as Cunningham, have begun to talk about “social network markets,” as a way to understand the new hybrid of creativity, innovation, digital technology, and new economic logics now being constituted (Cunningham and Potts). Innovation is being regarded as a cardinal priority for societies and their governments. Accordingly, the Australian government has commissioned a Review of The National Innovation System, led by Dr Terry Cutler, due to report in the second half of 2008. The Cutler review is especially focussed upon gaps and weaknesses in the Australian innovation system. Disability has the potential to figure very strongly in this innovation talk, however there has been little discussion of disability in the innovation discourse to date. The significance of disability in relation to innovation was touched upon some years ago, in a report on Disablism from the UK Demos Foundation (Miller, Parker and Gillinson). In a chapter entitled “The engine of difference: disability, innovation and creativity,” the authors discuss the area of inclusive design, and make the argument for the “involvement of disabled people to create a stronger model of user design”:Disabled people represented a market of 8.6 million customers at the last count and their experiences aren’t yet feeding through into processes of innovation. But the role of disabled people as innovators can and should be more active; we should include disabled people in the design process because they are good at it. (57) There are two reasons given for this expertise of disabled people in design. Firstly, “disabled people are often outstanding problem solvers because they have to be … life for disabled people at the moment is a series of challenges to be overcome” (57). Secondly, “innovative ideas are more likely to come from those who have a new or different angle on old problems” (57). The paradox in this argument is that as life becomes more equitable for people with disabilities, then these ‘advantages’ should disappear” (58). Accordingly, Miller et al. make a qualified argument, namely that “greater participation of disabled people in innovation in the short term may just be the necessary trigger for creating an altogether different, and better, system of innovation for everyone in the future” (58). The Demos Disablism report was written at a time when rhetorics of innovation were just beginning to become more generalized and mainstream. This was also at a time in the UK, when there was hope that new critical approaches to disability would see it become embraced as a part of the diverse society that Blair’s New Labor Britain had been indicating. The argument Disablism offers about disability and innovation is in some ways a more formalized version of vernacular theory (McLaughlin, 1996). In the disability movement we often hear, with good reason, that people with disability, by dint of their experience and knowledge are well positioned to develop and offer particular kinds of expertise. However, Miller et al. also gesture towards a more generalized account of disability and innovation, one that would intersect with the emerging frameworks around innovation. It is this possibility that I wish to take up and briefly explore here. I want to consider the prospects for a fully-fledged encounter between disability and innovation. I would like to have a better sense of whether this is worth pursuing, and what it would add to our understanding of both disability and innovation? Would the disability perspective be integrated as a long-term part of our systems of innovation rather than, as Miller et al. imply, deployed temporarily to develop better innovation systems? What pitfalls might be bound up with, or indeed be the conditions of, such a union between disability and innovation? The All-Too-Able User A leading area where disability figures profoundly in innovation is in the field of technology — especially digital technology. There is now a considerable literature and body of practice on disability and digital technology (Annable, Goggin, and Stienstra; Goggin and Newell, Digital Disability; National Council on Disability), however for my purposes here I would like to focus upon the user, the abilities ascribed to various kinds of users, and the user with disability in particular. Digital technologies are replete with challenges and opportunities; they are multi-layered, multi-media, and global in their manifestation and function. In Australia, Britain, Canada, the US, and Europe, there have been some significant digital technology initiatives which have resulted in improved accessibility for many users and populations (Annable, Goggin, and Stienstra; National Council on Disability) . There are a range of examples of ways in which users with disability are intervening and making a difference in design. There is also a substantial body of literature that clarifies why we need to include the perspective of the disabled if we are to be truly innovative in our design practices (Annable, Goggin and Stienstra; Goggin and Newell, “Disability, Identity and Interdependence”). I want to propose, however, that there is merit in going beyond recognition of the role of people with disability in technology design (vital and overlooked as it remains), to consider how disability can enrich contemporary discourses on innovation. There is a very desirable cross-over to be promoted between the emphasis on the user-as-expert in the sphere of disability and technology, and on the integral role of disability groups in the design process, on the one hand, and the rise of the user in digital culture generally, on the other. Surprisingly, such connections are nowhere near as widespread and systematic as they should be. It may be that contemporary debates about the user, and about the user as co-creator, or producer, of technology (Haddon et al.; von Hippel) actually reinstate particular notions of ability, and the able user, understood with reference to notions of disability. The current emphasis on the productive user, based as it is on changing understandings of ability and disability, provides rich material for critical revision of the field and those assumptions surrounding ability. It opens up possibilities for engaging more fully with disability and incorporating disability into the new forms and relations of digital technology that celebrate the user (Goggin and Newell, Digital Disability). While a more detailed consideration of these possibilities require more time than this essay allows, let us consider for a moment the idea of a genuine encounter between the activated user springing from the disability movement, and the much feted user in contemporary digital culture and theories of innovation. People with disability are using these technologies in innovative ways, so have much to contribute to wider discussions of digital technology (Annable, Goggin and Stienstra). The Innovation Turn Innovation policy, the argument goes, is important because it stands to increase productivity, which in turn leads to greater international competitiveness and economic benefit. Especially with the emergence of capitalism (Gleeson), productivity has strong links to particular notions of which types of production and produce are valued. Productivity is also strongly conditioned by how we understand ability and, last in a long chain of strong associations, how we as a society understand and value those kinds of people and bodies believed to contain and exercise the ordained and rewarded types of ability, produce, and productivity. Disability is often seen as antithetical to productivity (a revealing text on the contradictions of disability and productivity is the 2004 Productivity Commission Review of the Disability Discrimination Act). When we think about the history of disability, we quickly realize that productivity, and by extension, innovation, are strongly ideological. Ideological, that is, in the sense that these fields of human endeavour and our understanding of them are shaped by power relations, and are built upon implicit ‘ableist’ assumptions about productivity. In this case, the power relations of disability go right to the heart of the matter, highlighting who and what are perceived to be of value, contributing economically and in other ways to society, and who and what are considered as liabilities, as less valued and uneconomical. A stark recent example of this is the Howard government workplace and welfare reforms, which further disenfranchised, controlled, and impoverished people with disability. If we need to rethink our ideas of productivity and ability in the light of new notions of disability, then so too do we need to rethink our ideas about innovation and disability. Here the new discourses of innovation may actually be useful, but also contain limited formulations and assumptions about ability and disability that need to be challenged. The existing problems of a fresh approach to disability and innovation can be clearly observed in the touchstones of national science and technology “success.” Beyond One-Sided Innovation Disability does actually feature quite prominently in the annals of innovation. Take, for instance, the celebrated case of the so-called “bionic ear” (or cochlear implant) hailed as one of Australia’s great scientific inventions of the past few decades. This is something we can find on display in the Powerhouse Museum of Technology and Design, in Sydney. Yet the politics of the cochlear implant are highly controversial, not least as it is seen by many (for instance, large parts of the Deaf community) as not involving people with disabilities, nor being informed by their desires (Campbell, also see “Social and Ethical Aspects of Cochlear Implants”). A key problem with the cochlear implant and many other technologies is that they are premised on the abolition or overcoming of disability — rather than being shaped as technology that acknowledges and is informed by disabled users in their diverse guises. The failure to learn the lessons of the cochlear implant for disability and innovation can be seen in the fact that we are being urged now to band together to support the design of a “bionic eye” by the year 2020, as a mark of distinction of achieving a great nation (2020 Summit Initial Report). Again, there is no doubting the innovation and achievement in these artefacts and their technological systems. But their development has been marked by a distinct lack of consultation and engagement with people with disabilities; or rather the involvement has been limited to a framework that positions them as passive users of technology, rather than as “producer/users”. Further, what notions of disability and ability are inscribed in these technological systems, and what do they represent and symbolize in the wider political and social field? Unfortunately, such technologies have the effect of reproducing an ableist framework, “enforcing normalcy” (Davis), rather than building in, creating and contributing to new modes of living, which embrace difference and diversity. I would argue that this represents a one-sided logic of innovation. A two-sided logic of innovation, indeed what we might call a double helix (at least) of innovation would be the sustained, genuine interaction between different users, different notions of ability, disability and impairment, and the processes of design. If such a two-sided (or indeed many-sided logic) is to emerge there is good reason to think it could more easily do so in the field of digital cultures and technologies, than say, biotechnology. The reason for this is the emphasis in digital communication technologies on decentralized, participatory, user-determined governance and design, coming from many sources. Certainly this productive, democratic, participatory conception of the user is prevalent in Internet cultures. Innovation here is being reshaped to harness the contribution and knowledge of users, and could easily be extended to embrace pioneering efforts in disability. Innovating with Disability In this paper I have tried to indicate why it is productive for discourses of innovation to consider disability; the relationship between disability and innovation is rich and complex, deserving careful elaboration and interrogation. In suggesting this, I am aware that there are also fundamental problems that innovation raises in its new policy forms. There are the issues of what is at stake when the state is redefining its traditional obligations towards citizens through innovation frameworks and discourses. And there is the troubling question of whether particular forms of activity are normatively judged to be innovative — whereas other less valued forms are not seen as innovative. By way of conclusion, however, I would note that there are now quite basic, and increasingly accepted ways, to embed innovation in design frameworks, and while they certainly have been adopted in the disability and technology area, there is much greater scope for this. However, a few things do need to change before this potential for disability to enrich innovation is adequately realized. Firstly, we need further research and theorization to clarify the contribution of disability to innovation, work that should be undertaken and directed by people with disability themselves. Secondly, there is a lack of resources for supporting disability and technology organisations, and the development of training and expertise in this area (especially to provide viable career paths for experts with disability to enter the field and sustain their work). If this is addressed, the economic benefits stand to be considerable, not to mention the implications for innovation and productivity. Thirdly, we need to think about how we can intensify existing systems of participatory design, or, better still, introduce new user-driven approaches into strategically important places in the design processes of ICTs (and indeed in the national innovation system). Finally, there is an opportunity for new approaches to governance in ICTs at a general level, informed by disability. New modes of organising, networking, and governance associated with digital technology have attracted much attention, also featuring recently in the Australia 2020 Summit. Less well recognised are new ideas about governance that come from the disability community, such as the work of Queensland Advocacy Incorporated, Rhonda Galbally’s Our Community, disability theorists such as Christopher Newell (Newell), or the Canadian DIS-IT alliance (see, for instance, Stienstra). The combination of new ideas in governance from digital culture, new ideas from the disability movement and disability studies, and new approaches to innovation could be a very powerful cocktail indeed.Dedication This paper is dedicated to my beloved friend and collaborator, Professor Christopher Newell AM (1964-2008), whose extraordinary legacy will inspire us all to continue exploring and questioning the idea of able. 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