Journal articles: 'MicroCap 12'

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Зубков, С., and М. Козій. "Підвищення точності неінвазивного вимірювання артеріального тиску осцилометричним методом." Біомедична інженерія і технологія, no. 6 (December 18, 2021): 147–51. http://dx.doi.org/10.20535/2617-8974.2021.6.247777.

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Розглянуто практичні апаратні рішення щодо виділення пульсацій тиску в манжеті, що дозволяють підвищити точність та захищеність від перешкод алгоритмів вимірювання тиску. Досліджено вплив АЧХ фільтрів виділення слабких пульсацій тиску в манжеті на форму вихідного сигналу в неінвазивних автоматичних вимірювачах артеріального тиску. Під час розробки каналу неінвазивного вимірювання тиску для приліжкового монітору виявлено невідповідність між формою кривих пульсацій тиску в манжеті, отриманих прямою високоточною реєстрацією абсолютного тиску, з формою відповідних осциляцій. Виконано моделювання в MicroCap-12 схеми каскаду виділення пульсацій тиску, яке підтвердило, що форма і амплітудні характеристики вихідного сигналу залежить від ЧСС. Висновки: проектування каналу виділення пульсацій тиску в манжеті рекомендується виконувати у вигляді смугового фільтру, формулюючи вимоги щодо нього у часовій області (до гладкості імпульсної перехідної функції), як більш значущі у даному разі, ніж частотні. Ключові слова: артеріальний тиск, осцилометричний метод, пульсації тиску, схемотехніка неінвазивного каналу

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Suvorov, Nikolai B., Alexander V. Belov, Konstantin G. Kuliabin, Aleksei A. Anisimov, Timofei V. Sergeev, and Oleg A. Markelov. "High Precision Human Skin Temperature Fluctuations Measuring Instrument." Sensors 21, no. 12 (June 15, 2021): 4101. http://dx.doi.org/10.3390/s21124101.

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This paper describes the experimental results of testing a prototype of a high precision human skin rapid temperature fluctuations measuring instrument. Based on the author’s work, an original circuit solution on a miniature semiconductor diode sensor has been designed. The proposed circuitry provides operation in the full voltage range with automatic setting and holding the operating point, as well as the necessary slope of the conversion coefficient (up to 2300 mV/°C), which makes it possible to register fast temperature oscillations from the surface of the human body and other biological objects. Simulation results in the Microcap 12 software and laboratory tests have confirmed all declared design specifications: temperature resolution of 0.01 °C, transducer thermal time constant of 0.05 s. An original thermostat and an experimental setup for the simultaneous registration of the electrocardiogram, pulse wave signals from the Biopac polygraph MP36 and a signal of temperature oscillations from the prototype thermometer have been designed for further investigations. The preliminary test results indicates that using the designed measuring instrument gives a possibility to provide an in-depth study of the relationship between micro- and macro-blood circulations manifested in skin temperature fluctuations.

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Guo, Xiaoyang, Shigeki Tokita, and Junji Kawanaka. "12 mJ Yb:YAG/Cr:YAG microchip laser." Optics Letters 43, no. 3 (January 23, 2018): 459. http://dx.doi.org/10.1364/ol.43.000459.

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Eberhart, Lauren J., James R. Deringer, Kelly A. Brayton, Ashish A. Sawant, Thomas E. Besser, and Douglas R. Call. "Characterization of a Novel Microcin That Kills Enterohemorrhagic Escherichia coli O157:H7 and O26." Applied and Environmental Microbiology 78, no. 18 (July 6, 2012): 6592–99. http://dx.doi.org/10.1128/aem.01067-12.

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ABSTRACTA novel phenotype was recently identified in which specific strains ofEscherichia coliinhibit competingE. colistrains via a mechanism that was designated “proximity-dependent inhibition” (PDI). PDI-expressing (PDI+)E. coliis known to inhibit susceptible (PDI−)E. colistrains, including several enterohemorrhagic (EHEC) and enterotoxigenic (ETEC)E. colistrains. In this study, every strain from a genetically diverse panel ofE. coliO157:H7 (n= 25) and additional strains ofE. coliserovar O26 were susceptible to the PDI phenotype. LIVE/DEAD staining was consistent with inhibition by killing of susceptible cells. Comparative genome analysis identified the genetic component of PDI, which is composed of a plasmid-borne (Incl1) operon encoding a putative microcin and associated genes for transport, immunity, and microcin activation. Transfer of the plasmid to a PDI−strain resulted in transfer of the phenotype, and deletion of the genes within the operon resulted in loss of the inhibition phenotype. Deletion of chromosomally encodedtolCalso resulted in loss of the inhibitory phenotype, and this confirmed that the putative microcin is most likely secreted via a type I secretion pathway. Deletion of an unrelated plasmid gene did not affect the PDI phenotype. Quantitative reverse transcription (RT)-PCR demonstrated that microcin expression is correlated with logarithmic-phase growth. The ability to inhibit a diversity ofE. colistrains indicates that this microcin may influence gut community composition and could be useful for control of important enteric pathogens.

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Socías, Sergio B., Paula A. Vincent, and Raúl A. Salomón. "The Leucine-Responsive Regulatory Protein, Lrp, Modulates Microcin J25 Intrinsic Resistance in Escherichia coli by Regulating Expression of the YojI Microcin Exporter." Journal of Bacteriology 191, no. 4 (December 12, 2008): 1343–48. http://dx.doi.org/10.1128/jb.01074-08.

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ABSTRACT Many Escherichia coli K-12 strains display an intrinsic resistance to the peptide antibiotic microcin J25. In this study, we present results showing that the leucine-responsive regulatory protein, Lrp, is involved in this phenotype by acting as a positive regulator of YojI, a chromosomally encoded efflux pump which expels microcin out of cells. Exogenous leucine antagonizes the effect of Lrp, leading to a diminished expression of the pump and an increased susceptibility to microcin J25.

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Humayun, Qazi, Muhammad Kashif, and Uda Hashim. "Fabrication and characterization of a single-bridge nanorod between microgap electrodes." Microelectronics International 31, no. 2 (April 29, 2014): 104–7. http://dx.doi.org/10.1108/mi-12-2012-0084.

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Purpose – The purpose of this study was to investigate the performance of a single-bridge ZnO nanorod as a photodetector. Design/methodology/approach – The fabrication of the design sensor with ∼6-μm gap Schottky contacts and bridging of the ZnO nanorod were based on conventional photolithography and wet-etching technique. Prior to bridging, the ZnO nanorods were grown by the hydrothermal process. The 0.35 M seed solution was prepared by dissolving zinc acetate dihydrate in 2-methoxyethanol, and monoethanolamine, which acts as a stabilizer, was added drop-wise. Before starting the solution deposition, and oxide, titanium (Ti) and gold (Au) layer deposition, p-type (100) silicon substrate was cleaned with Radio Corporation of America (RCA1) and RCA2, followed by dipping in diluted hydrofluoric acid. The aged solution was dropped onto the surface of the Au microgap structure, using a spin coater at a spinning speed of 3,000 rpm for 45 seconds, and then dried at 300°C for 15 minutes, followed by annealing at 400°C for 1 hour. The hydrothermal growth was carried out in an aqueous solution of zinc nitrate hexahydrate (0.025 M) and hexamethyltetramine (0.025 M). Findings – In this study, ZnO nanorods were grown on a SiO2 substrate by the hydrothermal method. Microgap electrodes with ∼6-μm spacing were achieved by using the wet-etching process. After the growth process, an area-selective mask was utilized to reduce the number of rods between the nearby gap areas. The obtained single ZnO nanorod was tested for the UV-sensing application. The single ZnO nanorod photodetector exhibited a UV photoresponse, thereby indicating potential as a cost-effective UV detector. The response and recovery times of the fabricated device were 65 and 95 seconds, respectively. Structural analysis was captured using X-ray Diffraction (XRD), whereas surface morphology was determined using scanning electron microscopy. Originality/value – This paper demonstrates the effect of UV photon on a single-bridge ZnO nanorod between microgap electrodes.

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Smith, T. J., and N. Fitzpatrick. "Surgical removal of a microchip from a puppy’s spinal canal." Veterinary and Comparative Orthopaedics and Traumatology 22, no. 01 (2009): 63–65. http://dx.doi.org/10.3415/vcot-08-01-0002.

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SummaryA 1.6 kg, six-week-old Tibetan Terrier was admitted with a 12-hours history of acute onset of progressive tetraparesis following insertion of a microchip to the dorsal cervical region. Neurological examination indicated a lesion to the Ce1 to Ce5 spinal cord segments. Radiographic examination confirmed the intra-spinal location of a microchip foreign body at the level of the second cervical vertebra. Microchip removal was achieved following dorsal hemi-laminectomy; significant intra-operative haemorrhage was encountered. The puppy was ambulatory at day seven. Follow-up telephone interview 18 months postoperatively confirmed that the patient had made a good recovery although it had a mild residual right- sided torticollis.

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Martin, Sara L., Tyler W. Smith, Tracey James, Fatma Shalabi, Paul Kron, and Connie A. Sauder. "An update to the Canadian range, abundance, and ploidy of Camelina spp. (Brassicaceae) east of the Rocky Mountains." Botany 95, no. 4 (April 2017): 405–17. http://dx.doi.org/10.1139/cjb-2016-0070.

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The distribution and abundance of three Camelina species introduced to Canada is unknown, but critical for evaluating the risks associated with unconfined release of transgenic Camelina sativa (L.) Crantz (2n = 40). Furthermore, previous reports suggest Canadian populations of Camelina microcarpa Andrz. ex DC. vary for ploidy and ability to hybridize with C. sativa. We completed 8 weeks of field work in Alberta, Saskatchewan, Manitoba, southern Ontario, Quebec, and the Maritimes. We determined the ploidy composition of the populations found. We did not locate Camelina alyssum (Mill.) Thell., but located four sites with C. sativa and 34 with C. microcarpa. Eleven C. microcarpa populations were tetraploid (2n = 26, 1.00pg/2C) and 22 were hexaploid (2n = 40, 1.50pg/2C), while two populations were mixed. We examined material from botanical gardens and plant gene resource centres assessing total nuclear DNA content and completing chromosome counts for each species and cytotype identified, to determine whether tetraploid and hexaploid C. microcarpa were included in these collections. No tetraploid material was included in the C. microcarpa accessions received; however, a diploid (2n = 12, 0.54pg/2C) was found. Given the current geographic ranges, abundance, and chromosome counts of these species, the greatest risk of hybridization with transgenic C. sativa is from hexaploid C. microcarpa.

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Witte, P. G., H. W. Scott, and S. K. Joslyn. "Delayed spinal cord injury following microchip placement in a dog." Veterinary and Comparative Orthopaedics and Traumatology 23, no. 03 (2010): 214–17. http://dx.doi.org/10.3415/vcot-09-12-0123.

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SummaryA three-year-old female, entire Yorkshire Terrier dog was examined because it had progressive non-weight-bearing left forelimb lameness and tetraparesis of two weeks duration. Clinical signs were first observed following mating. Examination confirmed non-weight-bearing left forelimb lameness and tetraparesis. Left forelimb muscle atrophy was also noticed. Survey radiography revealed a metallic foreign body consistent with a microchip in close proximity to the left articular facets between the fifth and sixth cervical vertebrae. Computed tomography identified the exact location of the foreign body encroaching on the left dorsolateral vertebral canal, and osteolysis of the lamina of the sixth cervical vertebra. Surgical removal of the foreign body was performed via a dorsal approach to the caudal cervical vertebral column. Two weeks following surgery the dog showed return of left forelimb function and resolving tetraparesis. Microchip implantation had been performed three years previously.

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Dias, Nicole Gomes, Beltran Nadal Arribas, Paulo Gordo, Tiago Sousa, João Marinho, Rui Melicio, António Amorim, and Patrick Michel. "LIDAR altimeter conception for HERA spacecraft." Aircraft Engineering and Aerospace Technology 93, no. 6 (July 26, 2021): 1018–28. http://dx.doi.org/10.1108/aeat-12-2020-0300.

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Purpose This paper aims to report the first iteration on the Light Detection and Ranging (LIDAR) Engineering Model altimeter named HELENA. HELENA is a Time of Flight (TOF) altimeter that provides time-tagged distances and velocity measurements. The LIDAR can be used for support near asteroid navigation and provides scientific information. The HELENA design comprises two types of technologies: a microchip laser and low noise sensor. The synergies between these two technologies enable developing a compact instrument for range measurements of up to 14 km. Thermal-mechanical and radiometric simulations of the HELENA telescope are reported in this paper. The design is subjected to vibrational, static and thermal conditions, and it was possible to conclude by the results that the telescope is compliant with the random vibration levels, the static load and the operating temperatures. Design/methodology/approach The Asteroid Impact & Deflection Assessment (AIDA) is a collaboration between the NASA DART mission and ESA Hera mission. The aim scope is to study the asteroid deflection through a kinetic collision. DART spacecraft will collide with Didymos-B, while ground stations monitor the orbit change. HERA spacecraft will study the post-impact scenario. The HERA spacecraft is composed by a main spacecraft and two small CubeSats. HERA will monitor the asteroid through cameras, radar, satellite-to-satellite doppler tracking, LIDAR, seismometry and gravimetry. Findings The HELENA design comprises two types of technologies: a microchip laser and low noise sensor. The synergies between these two technologies enable developing a compact instrument for range measurements of up to 14 km. Originality/value In this paper is reported the first iteration on the LIDAR Engineering Model altimeter named HELENA. HELENA is a TOF altimeter that provides time-tagged distances and velocity measurements. The LIDAR can be used for support near asteroid navigation and provides scientific information. The HELENA design comprises two types of technologies: a microchip laser and low noise sensor. The synergies between these two technologies enable developing a compact instrument for range measurements of up to 14 km.

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Bains, R. S., H. L. Cater, M. Stewart, C. L. Scudamore, and S. E. Wells. "The effects of microchipping C57BL/6N mice on standard phenotyping tests." F1000Research 9 (April 6, 2020): 20. http://dx.doi.org/10.12688/f1000research.21633.2.

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The C57BL/6N inbred lines of mice are widely used in genetic research. They are particularly favoured in large scale studies such as the International Mouse Phenotyping Consortium (IMPC), where C57BL/6N mice are genetically altered to generate a collection of null alleles (currently more than 8500 null alleles have been generated). In this project, mice carrying null alleles are subjected to a pipeline of broad-based phenotyping tests to produce wide ranging phenotyping data on each model. We have previously described the development of a Home Cage Analysis system that automatically tracks the activity of group housed mice from a microchip inserted in the groin. This platform allows assessment of multiple biologically relevant phenotypes over long periods of time without experimenter interference, and therefore is particularly suited for high through-put studies. To investigate the impact of microchips on other tests carried out in the IMPC pipeline, we inserted microchips in 12 male and 12 female C57BL/6Ntac mice at seven weeks of age. Starting at nine weeks of age these mice underwent standard phenotyping tests, concurrently with 20 unchipped C57BL/6Ntac mice (10 females, 10 males). Tissues from a subset of the microchipped mice (six males and six females), chosen at random, were also sent for histopathological examination at the end of the phenotyping pipeline. No significant impact of insertion of microchip was observed in any of the phenotyping tests apart from bone mineral density measurement at DEXA due to the nature of the microchip. We therefore recommend that the microchip be inserted during the DEXA procedure, after the measurement is taken but before the mouse has recovered from the anaesthetic. This would avoid multiple anaesthetic exposures and prevent the potential variability in DEXA analysis output.

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Pugsley, A. P., F. Moreno, and V. De Lorenzo. "Microcin-E492-insensitive Mutants of Escherichia coli K12." Microbiology 132, no. 12 (December 1, 1986): 3253–59. http://dx.doi.org/10.1099/00221287-132-12-3253.

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Antwi-Adjei, Meshack, George Owusu, and Evans P. K. Ameade. "Aqueous extract of Lannea microcarpa attenuates dextran sulphate-induced paw oedema and xylene-induced ear oedema in rodents." International Journal of Basic & Clinical Pharmacology 6, no. 5 (April 24, 2017): 1048. http://dx.doi.org/10.18203/2319-2003.ijbcp20171655.

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Background: Lannea microcarpa Engl. and K. Krause (Family Anacardiaceae), a tropical tree is used traditionally used in Africa for both medicinal and non-medicinal purposes. Folkoric uses of the plant include wound healing, conjunctivitis, stomatitis and gingivitis among others. Inflammatory reactions are involved in several diseases which this plant is traditionally used to manage. This study was therefore aimed at investigating the antiinflammatory effects of the aqueous extract of Lannea microcapa.Methods: Oedema was induced in the right hind paws of Sprague Dawley rats (200-250g, 12 weeks old, n=5) using dextran sulphate solution whiles ear oedema was induced in ICR mice (25-30g, 6 weeks old, n=5) using xylene solutions. Aqueous extracts of ALM (30, 100 and 300mg kg-1) were administered in a set of rats and mice for both prophylactic and therapeutic studies. In the dextran sulphate-induced paw oedema, rats (200-250g) were treated orally with ALM (30, 100 and 300 mg kg-1) for both prophylactic and therapeutic studies. The paw thickness of the rats was measured before and after dextran sulphate injection at an hourly interval for 5 h. For xylene-induced ear oedema, ICR mice (25-30g) were given the same doses of the ALM and the ear weight of mice were measured after 2 h.Results: In the dextran sulphate-induced paw oedema, the ALM reduced the mean maximal paw oedema significantly (P ≤0.05) to 36.392±9.207% and 26.050±3.396% at 100 and 300 mg kg-1 (prophylaxis) and 32.192±5.670%, 31.398±6.921% and 31.593±5.841% at 30, 100 and 300 mg kg-1 (therapeutic) in dose dependent manner when compared to the control respectively. Similarly, the ALM dose dependently showed a significant (P ≤0.05) reduction of percentage mean oedema in xylene-induced ear oedema by 43.56%, 59.63% and 68.07% at 30, 100 and 300 mg kg-1 when compared to the control respectively.Conclusions: Aqueous extract of Lannea microcapa (30 -300 mg kg-1) caused significant reduction of oedema in both dextran sulphate-induced paw oedema and xylene-induced ear oedema.

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Shi, Baoxian, Weihua Huang, and Jieke Cheng. "Determination of neurotransmitters in PC 12 cells by microchip electrophoresis with fluorescence detection." ELECTROPHORESIS 28, no. 10 (May 2007): 1595–600. http://dx.doi.org/10.1002/elps.200600615.

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HABIBI, MEISAM, FARIDEH ARITAR, MOHSEN FALAHATI ANBARAN, and HADI MALEKI GISAVANDI. "Some novelties of Prunus subgenus Cerasus (Rosaceae) from Iran." Phytotaxa 542, no. 1 (April 1, 2022): 64–72. http://dx.doi.org/10.11646/phytotaxa.542.1.5.

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Prunus mazandaranica is described as a new species from north Iran. The new species has been placed in the sect. Microcerasus and could readily be distinguished from the closest relative, P. microcarpa subsp microcarpa, Prunus yazdiana, and Prunus paradoxa by indistinct brachyblasts, fasciculate inflorescence of 2–5 sessile or subsessile flowers with 10–12 unequal-sized stamens and glabrous style and ovary. Also, Prunus jacquemontii is recorded for the first time from northeast Iran. It is similar to P. griffithii morphologically, an endemic species distributed in Afghanistan, but distinguished from it by its glabrous leaves and glabrous style and ovary. Micromorphological features of pollen grains and leaf epidermal cells, surface are presented using Scanning Electron Microscopy. The diagnostic traits, a geographic distribution map, and detailed photos of the taxa are also presented here.

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Lacher, Nathan A., Kenneth E. Garrison, R. Scott Martin, and Susan M. Lunte. "Microchip capillary electrophoresis/ electrochemistry." ELECTROPHORESIS 22, no. 12 (July 2001): 2526–36. http://dx.doi.org/10.1002/1522-2683(200107)22:12<2526::aid-elps2526>3.0.co;2-k.

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MAEDA, SEISUKE, and TAKUJI OGAWA. "FORMATION OF GOLD NANOPARTICLES/OLIGOTHIOPHENE DITHIOLS COMPOSITE THIN FILMS BETWEEN MICROGAPPED GOLD ELECTRODES AND THEIR ELECTRONIC PROPERTIES." International Journal of Nanoscience 01, no. 05n06 (October 2002): 557–62. http://dx.doi.org/10.1142/s0219581x02000668.

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We have studied the construction and electronic characteristics of a series of devices made from gold microgap electrodes, gold nanoparticles and conjugated oligothiophene dithiols. The formations of gold nanoparticle/oligothiophene dithiol composites on gold surface were monitored by quartz crystal microbalance (QCM) using gold electrode coated crystal oscillator. The formation speed was the fastest for terthiophene dithiol followed by hexathiophene and nanothiophene dithiols, the latter two showed almost the same formation speed. The current–voltage (I/V) curves of these devices were measured at various temperatures to show that at high temperature (>200 K) they were almost straight line; at lower temperature they became parabolic, and at 4 K a completely blocked region appeared between -12 to +12 V. We attributed the parabolic I/V curve to a tunneling mechanism and the blocked region to the Coulomb blockade phenomena.

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Tsai, Shuo-Wen, Michael Loughran, and Isao Karube. "Development of a microchip for 2-dimensional capillary electrophoresis." Journal of Micromechanics and Microengineering 14, no. 12 (September 15, 2004): 1693–99. http://dx.doi.org/10.1088/0960-1317/14/12/014.

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Yi-Dong, Tan, and Zhang Shu-Lian. "Intensity Tuning in Single Mode Microchip Nd:YAG Laser with External Cavity." Chinese Physics Letters 23, no. 12 (November 29, 2006): 3271–74. http://dx.doi.org/10.1088/0256-307x/23/12/041.

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Kakuta, M., H. Takahashi, S. Kazuno, K. Murayama, T. Ueno, and M. Tokeshi. "Development of the microchip-based repeatable immunoassay system for clinical diagnosis." Measurement Science and Technology 17, no. 12 (October 26, 2006): 3189–94. http://dx.doi.org/10.1088/0957-0233/17/12/s12.

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Zhou, Li, Peng Huang, Linlan Yu, Mengshan Sun, Yadong Fang, Wei Liu, Zhaoshan Tang, and Jianguo Zeng. "Southern Blight on Macleaya microcarpa Caused by Sclerotium rolfsii in China." Plant Disease 103, no. 8 (August 2019): 2136. http://dx.doi.org/10.1094/pdis-12-18-2172-pdn.

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Jabasini, Mohammad, Ashraf Abdulazim Ewis, Maged Fouad, Fuquan Dang, Guichen Ping, Toshikatsu Shinka, Yutaka Nakahori, Noritada Kaji, Manabu Tokeshi, and Yoshinobu Baba. "Rapid Multiplexing and Simultaneous Detection of Human Spermatogenetic Failure with a 12 Lane Microchip Electrophoresis System." Biological & Pharmaceutical Bulletin 29, no. 7 (2006): 1487–89. http://dx.doi.org/10.1248/bpb.29.1487.

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Li, Xiangtang, Cassandra McCullum, Shulin Zhao, Hankun Hu, and Yi-Ming Liu. "d-Serine Uptake and Release in PC-12 Cells Measured by Chiral Microchip Electrophoresis-Mass Spectrometry." ACS Chemical Neuroscience 6, no. 4 (February 3, 2015): 582–87. http://dx.doi.org/10.1021/cn5003122.

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Braun, Michael, Franziska Endriss, Helmut Killmann, and Volkmar Braun. "In Vivo Reconstitution of the FhuA Transport Protein of Escherichia coli K-12." Journal of Bacteriology 185, no. 18 (September 15, 2003): 5508–18. http://dx.doi.org/10.1128/jb.185.18.5508-5518.2003.

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ABSTRACT The FhuA protein in the outer membrane of Escherichia coli actively transports ferrichrome and the antibiotics albomycin and rifamycin CGP 4832 and serves as a receptor for the phages T1, T5, and φ80 and for colicin M and microcin J25. The crystal structure reveals a β-barrel with a globular domain, the cork, which closes the channel formed by the barrel. Genetic deletion of the cork resulted in a β-barrel that displays no FhuA activity. A functional FhuA was obtained by cosynthesis of separately encoded cork and the β-barrel domain, each endowed with a signal sequence, which showed that complementation occurs after secretion of the fragments across the cytoplasmic membrane. Inactive complete mutant FhuA and an FhuA fragment containing 357 N-proximal amino acid residues complemented the separately synthesized wild-type β-barrel to form an active FhuA. Previous claims that the β-barrel is functional as transporter and receptor resulted from complementation by inactive complete FhuA and the 357-residue fragment. No complementation was observed between the wild-type cork and complete but inactive FhuA carrying cork mutations that excluded the exchange of cork domains. The data indicate that active FhuA is reconstituted extracytoplasmically by insertion of separately synthesized cork or cork from complete FhuA into the β-barrel, and they suggest that in wild-type FhuA the β-barrel is formed prior to the insertion of the cork.

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Park, M. J., S. E. Cho, M. Piątek, and H. D. Shin. "First Report of Powdery Mildew Caused by Erysiphe macleayae on Macleaya microcarpa in Poland." Plant Disease 96, no. 9 (September 2012): 1376. http://dx.doi.org/10.1094/pdis-03-12-0244-pdn.

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Macleaya microcarpa (Maxim.) Fedde, also known as smallfruit plume poppy, is a perennial herb belonging to the family Papaveraceae. The plant, together with the better-known species M. cordata (Willd.) R. Br., is native to central China and is now planted worldwide for medicinal purposes. In October 2008 and August 2009, dozens of smallfruit plume poppy planted in the Kraków Botanical Garden, Poland, were found to be severely infected with a powdery mildew. White colonies with abundant sporulation developed on both sides of leaves and young stems, forming circular to irregular patches. Infections caused leaf yellowing and premature defoliation. The damage has been observed every year since 2009. Representative voucher specimens were deposited in the fungal herbarium of the W. Szafer Institute of Botany of the Polish Academy of Sciences (KRAM) and the Korea University herbarium (KUS). Appressoria on the mycelia were lobed, often in pairs. Conidiophores composed of three to four cells arose from the upper part of creeping hyphae, 65 to 120 × 7 to 10 μm, attenuated toward the base, sub-straight or slightly flexuous in foot-cells, and produced conidia singly. Conidia were hyaline, oblong-elliptical to doliiform, 25 to 38 × 12 to 18 μm with a length/width ratio of 1.8 to 2.6; lacked fibrosin bodies; and produced germ tubes on the subterminal position with club-shaped or lobed appressoria. The conidial surface was wrinkled to irregularly reticulate. No chasmothecia were found. The structures described above match well with the anamorph of Erysiphe macleayae R.Y. Zheng & G.Q. Chen (3). To confirm the identity of the causal fungus, the internal transcribed spacer (ITS) region of rDNA from KUS-F24459 was amplified using primers ITS5 and P3 (4) and directly sequenced. The resulting sequence of 553 bp was deposited in GenBank (Accession No. JQ681217). A GenBank BLAST search using the present data revealed >99% sequence similarity of the isolate with E. macleayae on M. cordata from Japan (AB016048). Pathogenicity was confirmed through inoculation by gently pressing diseased leaves onto leaves of three healthy potted plants. Three noninoculated plants served as controls. Plants were maintained in a greenhouse at 25°C. Inoculated plants developed signs and symptoms after 7 days, whereas the control plants remained healthy. The fungus present on the inoculated plants was morphologically identical to that originally observed on diseased plants. The powdery mildew infections of M. cordata associated with E. macleayae have been recorded in China and Japan (2), and more recently in Germany (1,3). To our knowledge, this is the first report of E. macleayae on M. microcarpa globally as well as in Poland. This mildew species was described in China and is endemic to Asia, where chasmothecia of the fungus were found. Only recently have powdery mildews been found on M. cordata in Germany (1,3) and now on M. microcarpa in Poland, indicating the fungus is spreading in Europe. References: (1) N. Ale-Agha et al. Schlechtendalia 17:39, 2008. (2) D. F. Farr and A. Y. Rossman. Fungal Databases, Systematic Mycology and Microbiology Laboratory, ARS, USDA. Retrieved from http://nt.ars-grin.gov/fungaldatabases/ , February 7, 2012. (3) A. Schmidt and M. Scholler. Mycotaxon 115:287, 2011. (4) S. Takamatsu et al. Mycol. Res. 113:117, 2009.

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Prada, Diana, Victoria Boyd, Michelle Baker, Bethany Jackson, and Mark O’Dea. "Insights into Australian Bat Lyssavirus in Insectivorous Bats of Western Australia." Tropical Medicine and Infectious Disease 4, no. 1 (March 11, 2019): 46. http://dx.doi.org/10.3390/tropicalmed4010046.

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Australian bat lyssavirus (ABLV) is a known causative agent of neurological disease in bats, humans and horses. It has been isolated from four species of pteropid bats and a single microbat species (Saccolaimus flaviventris). To date, ABLV surveillance has primarily been passive, with active surveillance concentrating on eastern and northern Australian bat populations. As a result, there is scant regional ABLV information for large areas of the country. To better inform the local public health risks associated with human-bat interactions, this study describes the lyssavirus prevalence in microbat communities in the South West Botanical Province of Western Australia. We used targeted real-time PCR assays to detect viral RNA shedding in 839 oral swabs representing 12 species of microbats, which were sampled over two consecutive summers spanning 2016–2018. Additionally, we tested 649 serum samples via Luminex® assay for reactivity to lyssavirus antigens. Active lyssavirus infection was not detected in any of the samples. Lyssavirus antibodies were detected in 19 individuals across six species, with a crude prevalence of 2.9% (95% CI: 1.8–4.5%) over the two years. In addition, we present the first records of lyssavirus exposure in two Nyctophilus species, and Falsistrellus mackenziei.

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Gupta, N. Vishal, D. V. Gowda, V. Balamuralidhara, and M. S. Khan. "Preparation and Comparative Bioavailability Studies of Indomethacin-Loaded Cetyl Alcohol Microspheres." Journal of Pharmaceutics 2013 (September 19, 2013): 1–9. http://dx.doi.org/10.1155/2013/109837.

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The purpose of the present study was to compare the in vitro release and to find out whether the bioavailability of a 75 mg indomethacin capsule (Microcid SR) was equivalent to optimized formulation (indomethacin-loaded cetyl alcohol microspheres). Indomethacin-loaded cetyl alcohol microspheres were prepared by meltable emulsified cooling-induced technique. Surface morphology of microspheres has been evaluated using scanning electron microscopy. A single dose, randomized, complete cross over study of IM microspheres was carried out on 10 healthy male and female Albino sheep’s under fasting conditions. The plasma was separated and the concentrations of the drug were determined by HPLC-UV method. Plasma indomethacin concentrations and other pharmacokinetic parameters obtained were statistically analyzed. The SEM images revealed the spherical shape of fat microspheres, and more than 98.0% of the isolated microspheres were in the size range 12–32 μm. DSC, FTIR spectroscopy and stability studies indicated that the drug after encapsulation with fat microspheres was stable and compatible. Both formulations were found to be bioequivalent as evidenced by in vivo studies. Based on this study, it can be concluded that cetyl alcohol microspheres and Microcid SR capsule are bioequivalent in terms of the rate and extent of absorption.

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Fany Caduthuz. "In situ study on the settlement of biofoulers employing wooden test panels." Journal of Inventions in Biomedical and Pharmaceutical Sciences 1, no. 1 (March 29, 2016): 12–18. http://dx.doi.org/10.26452/jibps.v1i1.1421.

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The aim of this study is to analyze the antifouling properties of different timbers, and thus to identify the wood which shows the most antifouling activity. The chemical component present in that wood which is responsible for its antifouling property can be extracted and used in the manufacture of natural antifouling paints, thus saving the marine environment from the effects of heavy metal antifouling paints. Wood species used in this study were, 1) Tectona grandis 2) Prosopis juliflora 3) Strychnos nux-vomica 4) Lagerstroemia microcarpa 5) Mangifera indica 6) Artocarpus hirsutus 7) Milicia excelsa 8) Swietenia mahagoni 9) Anigre 10) Terminalia arjuna 11) Artocarpus heterophyllus 12) Albizia lebbeck 13) Acacia mangium. Four sets of panels were exposed for a period of 1 month and 20 days. The identification of fouling organisms obtained from wooden panels revealed the presence of 5 species belonging to Barnacles, Tubeworms, Bivalves, Bryozoans, and Hydroids. The study showed promising results, out of the thirteen species of wood used in the study, it was found that Albizia lebbeck and Lagerstroemia microcarpa showed the most biofouling resistance. The chemical extracts from these wood can be used in the preparation of environmental friendly antifouling coatings.

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Yi-Dong, Tan, Zhang Shu-Lian, Wan Xin-Jun, and Cheng Xiang. "Mode hopping in single-mode microchip Nd:YAG lasers induced by optical feedback." Chinese Physics 15, no. 12 (November 2, 2006): 2934–41. http://dx.doi.org/10.1088/1009-1963/15/12/028.

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Hou, Kewei, Chen Xue, and Lu Zhang. "Replicating Anomalies." Review of Financial Studies 33, no. 5 (December 10, 2018): 2019–133. http://dx.doi.org/10.1093/rfs/hhy131.

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Abstract Most anomalies fail to hold up to currently acceptable standards for empirical finance. With microcaps mitigated via NYSE breakpoints and value-weighted returns, 65% of the 452 anomalies in our extensive data library, including 96% of the trading frictions category, cannot clear the single test hurdle of the absolute $t$-value of 1.96. Imposing the higher multiple test hurdle of 2.78 at the 5% significance level raises the failure rate to 82%. Even for replicated anomalies, their economic magnitudes are much smaller than originally reported. In all, capital markets are more efficient than previously recognized. Received June 12, 2017; editorial decision October 29, 2018 by Editor Stijn Van Nieuwerburgh. Authors have furnished an Internet Appendix, which is available on the Oxford University Press Web site next to the link to the final published paper online.

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Tanaka, Yuki, Masayuki Yamato, Teruo Okano, Takehiko Kitamori, and Kiichi Sato. "Evaluation of effects of shear stress on hepatocytes by a microchip-based system." Measurement Science and Technology 17, no. 12 (October 26, 2006): 3167–70. http://dx.doi.org/10.1088/0957-0233/17/12/s08.

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Tan, Yi-Dong, Song Zhang, Zhou Ren, Yong-Qin Zhang, and Shu-Lian Zhang. "Real-Time Liquid Evaporation Rate Measurement Based on a Microchip Laser Feedback Interferometer." Chinese Physics Letters 30, no. 12 (December 2013): 124202. http://dx.doi.org/10.1088/0256-307x/30/12/124202.

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Bobrovsky, P. A., A. K. Larin, N. F. Polina, and V. N. Lazarev. "Transcriptional Analysis of HELA Cells - Producers of the Recombinant Peptidoglycan Recognition Protein PGLYRP1 at Different Stages of the Chlamydia Trachomatis Infection Development." Biomedical Chemistry: Research and Methods 2, no. 4 (2019): e00113. http://dx.doi.org/10.18097/bmcrm00113.

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Human peptidoglycan recognition proteins (PGLYRPs) are the components of innate immunity that exhibit antibacterial activity. In this study a cell line secreting recombinant PGLYRP1 into a culture medium was obtained. Transcriptional profiling of cell lines expressing PGLYRP1 was performed at different stages of C. trachomatis infection. Differential gene expression was studied using the whole transcriptome profiling method on the HumanHT-12 v4 Expression BeadChip microchip using the Illumina Direct Hybridization Whole-Gene Expression Assay protocol. Sample clustering followed by bioinformatics analysis revealed about 100 differentially expressed genes in response to infection with C. trachomatis. PGLYRP1- expressing cells infected with C. trachomatis had a similar transcriptional profile as non-infected cells.

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Zhang, Shao-Hui, Shu-Lian Zhang, Yi-Dong Tan, and Li-Qun Sun. "Dynamical properties of total intensity fluctuation spectrum in two-mode Nd:YVO 4 microchip laser." Chinese Physics B 24, no. 12 (December 2015): 124203. http://dx.doi.org/10.1088/1674-1056/24/12/124203.

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Yao, J. A., D. Y. Yu, L. M. Lu, P. Huang, and C. Z. Lan. "First Report of Alternaria alternata Causing Black Leaf Spot on Ficus microcarpa in China." Plant Disease 99, no. 11 (November 2015): 1652. http://dx.doi.org/10.1094/pdis-12-14-1301-pdn.

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Li, Michelle W, Dana M Spence, and R. Scott Martin. "A Microchip-Based System for Immobilizing PC 12 Cells and Amperometrically Detecting Catecholamines Released After Stimulation with Calcium." Electroanalysis 17, no. 13 (July 2005): 1171–80. http://dx.doi.org/10.1002/elan.200403231.

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Abraham, Sam, David M. Gordon, James Chin, Huub J. M. Brouwers, Peter Njuguna, Mitchell D. Groves, Ren Zhang, and Toni A. Chapman. "Molecular Characterization of Commensal Escherichia coli Adapted to Different Compartments of the Porcine Gastrointestinal Tract." Applied and Environmental Microbiology 78, no. 19 (July 13, 2012): 6799–803. http://dx.doi.org/10.1128/aem.01688-12.

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ABSTRACTThe role ofEscherichia colias a pathogen has been the focus of considerable study, while much less is known about it as a commensal and how it adapts to and colonizes different environmental niches within the mammalian gut. In this study, we characterizeEscherichia coliorganisms (n= 146) isolated from different regions of the intestinal tracts of eight pigs (dueodenum, ileum, colon, and feces). The isolates were typed using the method of random amplified polymorphic DNA (RAPD) and screened for the presence of bacteriocin genes and plasmid replicon types. Molecular analysis of variance using the RAPD data showed thatE. coliisolates are nonrandomly distributed among different gut regions, and that gut region accounted for 25% (P< 0.001) of the observed variation among strains. Bacteriocin screening revealed that a bacteriocin gene was detected in 45% of the isolates, with 43% carrying colicin genes and 3% carrying microcin genes. Of the bacteriocins observed (H47, E3, E1, E2, E7, Ia/Ib, and B/M), the frequency with which they were detected varied with respect to gut region for the colicins E2, E7, Ia/Ib, and B/M. The plasmid replicon typing gave rise to 25 profiles from the 13 Inc types detected. Inc F types were detected most frequently, followed by Inc HI1 and N types. Of the Inc types detected, 7 were nonrandomly distributed among isolates from the different regions of the gut. The results of this study indicate that not only may the different regions of the gastrointestinal tract harbor different strains ofE. colibut also that strains from different regions have different characteristics.

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Kawai, R., Y. Asakawa, and K. Otsuka. "Ultrahigh-sensitivity self-mixing laser Doppler velocimetry with laser-diode-pumped microchip LiNdP/sub 4/O/sub 12/ lasers." IEEE Photonics Technology Letters 11, no. 6 (June 1999): 706–8. http://dx.doi.org/10.1109/68.766792.

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Sueyoshi, Kenji, Hidenori Nagai, Shin-ichi Wakida, Junji Nishii, Fumihiko Kitagawa, and Koji Otsuka. "Application of a partial filling technique to electrophoretic analysis on microchip with T-cross channel configuration." Measurement Science and Technology 17, no. 12 (October 26, 2006): 3154–61. http://dx.doi.org/10.1088/0957-0233/17/12/s06.

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Azpiroz, María F., and Magela Laviña. "Involvement of Enterobactin Synthesis Pathway in Production of Microcin H47." Antimicrobial Agents and Chemotherapy 48, no. 4 (April 2004): 1235–41. http://dx.doi.org/10.1128/aac.48.4.1235-1241.2004.

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ABSTRACT Microcin H47 (MccH47) is a gene-encoded peptide antibiotic produced by an Escherichia coli clinical isolate which is active on strains of gram-negative bacteria. Its uptake by E. coli K-12-susceptible cells depends on the presence of any of the outer membrane proteins Cir, Fiu, and FepA, the three catechol receptors of this organism. The nucleotide sequence of a portion of the MccH47 genetic system that had not yet been studied was elucidated. Five open reading frames were identified, three of which corresponded to genes encoding functions related to catechol-type siderophores: mchA and mchS1 are iroB and iroD homologues, respectively, and mchS4 was found to promote the production of the catecholate siderophore enterobactin. The possible relationship between enterobactin synthesis and MccH47 production was studied. Enterobactin-deficient strains failed to produce MccH47 when transformed with the antibiotic genetic determinants and upon introduction of the ent genetic cluster, the production of both the siderophore and MccH47 was restored. Further studies demonstrated that at least the enterobactin nonribosomal peptide synthase EntF is necessary for MccH47 synthesis. The relationship found between MccH47 and catecholate siderophore production is discussed, and a model outlining MccH47 synthesis is proposed.

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Bang, Hae-Jeen, Soo-Jung Hwang, Hyun-Sook Ham, and Jung-Myung Lee. "261 Effect of SMP and Brushing on Gourd Seed Germination at Different Temperatures." HortScience 34, no. 3 (June 1999): 487B—487. http://dx.doi.org/10.21273/hortsci.34.3.487b.

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The effectiveness of solid matrix priming (SMP) and seed brushing was further evaluated by using an thermo-gradient table (Seed Processing, Holland) set at 10 different temperatures from 12 to 30 °C. Intact or brushed seeds of gourd (Lagenaria siceraria) were primed with Micorocel E (Celite Corp.) at 25 °C for 3 days in the mixture of 10 seed: 1 Microcel E: 3 water, by weight, and the primed seeds were dried again for long-term storage. SMP treatment significantly increased earlier seed germination at all temperatures. However, the difference in seed germination rate between intact and SMP-treated seeds was most pronounced at somewhat lower temperatures of 18-22 °C. SMP-treated seed showed about 20% final germination rate at 12 °C, whereas intact seeds did not germinate at all. Seed brushing treatment itself did not influenced the germination rate. However, brushing treatment before SMP treatment significantly increased the SMP effect. Combined use of chemicals in solution further increased the early germination. Details of various seed treatment methods will be presented.

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Angoulvant, Denis, Cyrille Bergerot, Aline Mézergues, Xavier André-Fouët, and Theodora Bejan-Angoulvant. "049 Invasive detection of myocardial microvascular disease in patients with end stage renal disease. The MICROCARD study." Archives of Cardiovascular Diseases Supplements 4, no. 1 (January 2012): 16–17. http://dx.doi.org/10.1016/s1878-6480(12)70445-7.

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Wallman, Lars, Simon Ekström, Mattias Magnusson, Gunnar Bolmsjö, Magnus Olsson, Johan Nilsson, György Marko-Varga, and Thomas Laurell. "Robotic implementation of a microchip-based protein clean-up and enrichment system for MALDI-TOF MS readout." Measurement Science and Technology 17, no. 12 (October 26, 2006): 3147–53. http://dx.doi.org/10.1088/0957-0233/17/12/s05.

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Ramzi, Soghra, and Shahryar Saedi-Mehrvarz. "Seed micromorphological study on endemic and subendemic species of Veronica L. (Plantaginaceae Juss.) in Iran." Bangladesh Journal of Plant Taxonomy 26, no. 2 (December 23, 2019): 315–24. http://dx.doi.org/10.3329/bjpt.v26i2.44597.

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Seed morphology of 12 Iranian endemic and subendemic species of Veronica was studied using scanning electron microscope (SEM). Seven qualitative and quantitative characters were measured using SEM micrographs and stereomicroscopy. The seed shape of most species is ovate and plano-convex. The size of seeds ranges from 1.25 x 0.75 mm in V. khorassanica to 2.5 x 1.75 mm in V. viscosa Boiss. The ornamentation of seed coat is reticulate-verrucate in V. khorassanica, V. czerniakowskiana, V. mazanderanae and V. rubrifolia, reticulate-rugate in V. acrotheca, V. aucheri, V. viscosa and V. intercedens, rugose in V. microcarpa, V. chionantha and V. rechingeri, and reticulate-porate in V. gaubae. The testa cells are polygonal in ten species and irregular in two species. Micromorphological characters of seeds are useful in specific and subspecific delimitations of Iranian Veronica.

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Maheswaran, J., and P. M. Attiwill. "Loss of organic matter, elements, and organic fractions in decomposing Eucalyptus microcarpa leaf litter." Canadian Journal of Botany 65, no. 12 (December 1, 1987): 2601–6. http://dx.doi.org/10.1139/b87-350.

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The losses of organic matter, elements and organic fractions during the decomposition of Eucalyptus microcarpa Maiden leaf litter were measured in litterbags. The concentrations of nitrogen and phosphorus in litter increased for most of the decomposition period. At the end of 15 months the amounts of elements lost were in the order K > Na > Mg > P > N >Ca. A simple method to determine the different organic fractions according to the degree of decomposability and using a small quantity of litter (0.1 – 0.5 g) was developed. The mass loss during the initial 3 months was most closely related to the amount of light organic fraction in the litter, while during the final 12 months the mass loss was most closely related to the harder organic fractions in the litter.

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SWANEPOEL, WESSEL, VERA DE CAUWER, and ABRAHAM E. VAN WYK. "A new species of Osteospermum subgen. Tripteris (Asteraceae: Calenduleae) from the Namib Desert, Namibia." Phytotaxa 487, no. 3 (February 26, 2021): 185–94. http://dx.doi.org/10.11646/phytotaxa.487.3.1.

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Osteospermum namibense, here described as a new species, is known only from the northern part of the Namib Desert in the Kaokoveld Centre of Endemism, northwestern Namibia. Within a broad generic concept for Osteospermum (tribe Calenduleae), the new species is a member of subgen. Tripteris. These dwarf shrubs grow on rocky outcrops under harsh desert conditions. Diagnostic characters for Osteospermum namibense include the perennial, woody habit, di- or trichotomous branching, succulent leaves arranged in rosettes, and capitula with 12–14 rays. A comparison of some of the more prominent morphological features to differentiate between O. namibense and its possible nearest relative, O. microcarpum (=Tripteris microcarpa), is provided. Based on IUCN Red List categories and criteria, a conservation assessment of Vulnerable (VU D1) is recommended for the new species.

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Li, Lu, Qingling Li, Peilin Chen, Zhongyi Li, Zhenzhen Chen, and Bo Tang. "Consecutive Gated Injection-Based Microchip Electrophoresis for Simultaneous Quantitation of Superoxide Anion and Nitric Oxide in Single PC-12 Cells." Analytical Chemistry 88, no. 1 (December 18, 2015): 930–36. http://dx.doi.org/10.1021/acs.analchem.5b03664.

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Portrait, V., S. Gendron-Gaillard, G. Cottenceau, and A. M. Pons. "Inhibition of pathogenic Salmonella enteritidis growth mediated by Escherichia coli microcin J25 producing strains." Canadian Journal of Microbiology 45, no. 12 (1999): 988–94. http://dx.doi.org/10.1139/cjm-45-12-988.

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Tutuarima, Tuti, Kurnia Harlina Dewi, and Novita Sinambela. "Optimasi Proses Maserasi Hasil Samping Industri Sirup Jeruk Kalamansi (Citrofortunella microcarpa)." Jurnal Ilmiah Teknologi Pertanian Agrotechno 3, no. 2 (February 6, 2019): 358. http://dx.doi.org/10.24843/jitpa.2018.v03.i02.p07.

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Jeruk Kalamansi (Citrofortunella microcarpa) merupakan salah satu komoditi unggulan Provinsi Bengkulu yang diolah menjadi sirup. Hasil samping industri sirup jeruk kalamansi berupa kulit, pulp, biji, dan cairan hasil pengendapan. Hasil samping ini berpotensi mengandung senyawa aktif berupa concrete, oleoresin dan atau minyak atsiri. Penelitian ini bertujuan untuk mendapatkan kondisi proses maserasi optimum dalam produksi concrete dari hasil samping industri sirup jeruk kalamansi yang berbentuk padatan (kulit dan pulp). Variabel yang digunakan pada penelitian ini adalah lama maserasi (6, 12, dan 24 jam) dan rasio antara berat bahan dan volume pelarut (1:1, 1:2, dan 1:3). Pelarut yang digunakan adalah etanol 96%. Respon yang diharapkan pada penelitian ini adalah rendemennya. Pengolahan data menggunakan metode respon permukaan pada software Minitab 16. Berdasarkan analisa varian diketahui bahwa efek linear lebih signifikan dibandingkan efek kuadratik, sehingga persamaan optimasi yang didapat adalah Y = 25,1667 + 6,1167 X1 + 1,2397 X2. Titik optimum belum tercapai. Rendemen maksimum diperoleh sebesar 54,6823 %, didapatkan pada lama maserasi 24 jam dan rasio berat bahan dan volume pelarut 1:1,75. Karakteristik mutu concrete kulit & pulp jeruk kalamansi yaitu berat jenis 0,985, bilangan asam 1,838, dan indeks bias 1,354.

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Wahyuningsih, Niken, Ratna Ratna, and Zulfahrizal Zulfahrizal. "Pendugaan Umur Simpan Jeruk Siam (Citrus nobilis var. microcarpa) Berdasarkan Kandungan Vitamin C Menggunakan Persamaan Arrhenius." Jurnal Ilmiah Mahasiswa Pertanian 1, no. 1 (November 1, 2016): 1077–86. http://dx.doi.org/10.17969/jimfp.v1i1.1166.

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Abstrak.Menganalisis mutu selama penyimpanan dapat dilakukan dengan mengendalikan kondisi penyimpanan tertentu serta menduga laju penurunan mutu yang terjadi. Penelitian ini bertujuan untuk menduga umur simpan jeruk siam berdasarkan laju penurunan vitamin C selama penyimpanan menggunakan persamaan Arrhenius. Jeruk siam segar disimpan dengan variasi suhu yaitu suhu 10⁰C, 15⁰C, dan 28⁰C. Analisis dilakukan 3 hari sekali hingga panelis menolak dengan parameter susut bobot, tingkat kekerasan, total padatan terlarut (TPT), vitamin C, dan uji organoleptik yaitu warna, aroma, tekstur, rasa, dan penerimaan keseluruhan. Hasil penelitian diperoleh persentase susut bobot pada suhu 10⁰C dan suhu 15⁰C yaitu 11,57 % pada penyimpanan hari ke- 12. Tingkat kekerasan tertinggi pada suhu penyimpanan 10 ⁰C yaitu 2,09 Kg/cm2. Suhu 15 ⁰C mengalami kenaikan total padatan terlarut paling tinggi hingga 9,70% brix. Uji organoleptik penyimpanan terbaik pada suhu 15 ⁰C dengan lama penyimpanan hingga hari ke- 12, warna, tekstur, aroma, rasa dan penerimaan keseluruhan skornya yaitu 4,28, 4,05, 3,76, 4,50 dan 4,10. Umur simpan jeruk siam pada suhu 10⁰C umur simpannya 15 hari, suhu penyimpanan 15⁰C umur simpannya 14 hari, Suhu 28⁰C umur simpannya 13 hari. Penelitian ini didapatkan model pendugaan laju penurunan mutu jeruk siam selama penyimpanan yaitu k = 30.01808 e-777.54(1/T). Abstract. Analyzing the quality during storage could be done by controlling the storage as well as suspecting the rate of decrease the quality. This research aim to presume the life of siamese orange based on the rate of vitamin C decrease during the storage by using Arrhenius equation. The fresh siamese oranges with variety of storage temperature were 10 0C, 15 0C, and 28 0C. Analysis done in 3 days until the panelist refected to the shrinkage of weight, the level of solid, total soluble solid (TSS), Vitanin C, and organoleptic test such as colour, aroma, texture, taste, acceptance in a whole. From the result it is obtained the percentage of shrinkage weigh of temperature at 10 0C and at 15 0C was 11,57 % in the storage of day 12. The highest level of solid was on temperature at 10 0C was 2,09 kg/cm2. On the temperature 15 0C it has the total soluble solid up to 9,70b% brix. The best organoleptic test storage was on temperature 15 0C with in 12 days of storage, the highest colour, aroma, texture, taste, and acceptance in a whole score was 4,28, 4,05, 3,76, 4,50 and 4,10. The siamese orange life storage on temperature 10 0C could be storage for 15 days, on temperature 15 0C could be storage for 14 days, on temperature 28 0C could be storage for 13 days. The reseach found out that the persume of decreasing the quality of siamese orange duringstorage was k = 30.01808 e-777.54(1/T).

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Journal articles on the topic 'MicroCap 12'

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