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Lomas, Graham M. "Local Action Over Sight Loss." British Journal of Visual Impairment 18, no. 3 (September 2000): 95–100. http://dx.doi.org/10.1177/026461960001800302.
Johnson, Mark R. D., and Asesha Morjaria-Keval. "Ethnicity, sight loss and invisibility." British Journal of Visual Impairment 25, no. 1 (January 2007): 21–31. http://dx.doi.org/10.1177/0264619607071772.
Barrand, Julia. "Supporting sight loss and dementia." Nursing and Residential Care 13, no. 9 (September 2011): 448–49. http://dx.doi.org/10.12968/nrec.2011.13.9.448.
Slater, Anthony. "Housing design for better sight: solutions for living with sight loss." Housing, Care and Support 11, no. 3 (November 2008): 9–12. http://dx.doi.org/10.1108/14608790200800019.
Kirkcaldy, Andrew, and Wally Barr. "Coming to terms with sight loss." British Journal of Visual Impairment 29, no. 2 (May 2011): 145–54. http://dx.doi.org/10.1177/0264619611401798.
Abbatemarco, Justin R., Rushad Patell, Janet Buccola, and Mary Alissa Willis. "Acute monocular vision loss: Don’t lose sight of the differential." Cleveland Clinic Journal of Medicine 84, no. 10 (October 2017): 779–87. http://dx.doi.org/10.3949/ccjm.84a.16096.
Fisk, Malcolm John, and Peter Raynham. "Assistive lighting for people with sight loss." Disability and Rehabilitation: Assistive Technology 9, no. 2 (April 16, 2013): 128–35. http://dx.doi.org/10.3109/17483107.2013.781235.
Hogan, Claire Louise, of Western Sydney Hawkesbury University, Faculty of Social Inquiry, and School of Social Ecology. "Exploring the social effects of visual loss on human interaction." THESIS_FSI_SEL_Hogan_C.xml, 1995. http://handle.uws.edu.au:8081/1959.7/120.
Theories on the impact of visual loss tend to generalise and can simplify complex issues. Two extreme views are challenged that portray the impact of visual loss as catastrophic or as a minor inconvenience. The argument is put forward that the impact of visual loss can lessen with improved interaction, and this theory is tested by the author questioning and modifying her own interaction. The following themes are explored: limbo status and self-acceptance; the common stresses experienced when asking for help; and discriminatory attitudes. The research is action based, and the emphasis is on how individuals adjust and adapt to loss, rather than the stresses experienced. Master of Science (Hons)
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Baldassaro, Paige Marie. "RF and GIS: Field Strength Prediction for Frequencies between 900 MHz and 28 GHz." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/34724.
This thesis presents a model to predict signal strength for frequencies between 902 MHz and 28 GHz. The model approximates diffraction using the knife-edge concept and equations proposed by Lee (1985). LOS pathways are calculated using the Bresenham algorithm and the corresponding elevations are obtained from a 30m DEM base map. The base map was generated by the procedure outlined in Rose (2001) and includes building elevations. The effect of Fresnel zones on prediction accuracy is considered. The effect of interpolating elevations along the Bresenham line is also considered. An Inverse Distance Weighting algorithm was used to interpolate the elevations.
The accuracy of the model was evaluated using received signal strength data compiled from studies conducted at 902 MHz, 24.12 GHz and 27.525 GHz. In addition to the compiled data, data was also collected for this study at 2.4 GHz. 257 receiver locations were evaluated; 70 samples were Line-of-Sight. The study area incorporates the Virginia Polytechnic Institute and State University campus.
Incorporating Fresnel zones, Interpolating elevations and calculating double blockages do not have an effect on the program's overall ability to predict signal strength. However, for obstructed pathways, it is not adequate to simply use path loss as an estimate of signal strength. Accurate estimates of diffraction gain are crucial for obstructed pathways. In addition, examination of the standard deviation for the data sets indicates that the model is independent of frequency. The average error across the frequencies is positively correlated with frequency, indicating that the model predicts signal strength better for higher frequencies. The smaller wavelengths associated with the higher frequencies require a more directional antenna and are therefore less sensitive to multipath interference. In addition, the smaller wavelengths are less able to diffract around buildings and terrain features. Master of Science
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Manan, Waqas. "Propagation channel models for 5G mobile networks. Simulation and measurements of 5G propagation channel models for indoor and outdoor environments covering both LOS and NLOS Scenarios." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17219.
At present, the current 4G systems provide a universal platform for broadband mobile services; however, mobile traffic is still growing at an unprecedented rate and the need for more sophisticated broadband services is pushing the limits on current standards to provide even tighter integration between wireless technologies and higher speeds. This has led to the need for a new generation of mobile communications: the so-called 5G. Although 5G systems are not expected to penetrate the market until 2020, the evolution towards 5G is widely accepted to be the logical convergence of internet services with existing mobile networking standards leading to the commonly used term “mobile internet” over heterogeneous networks, with several Gbits/s data rate and very high connectivity speeds. Therefore, to support highly increasing traffic capacity and high data rates, the next generation mobile network (5G) should extend the range of frequency spectrum for mobile communication that is yet to be identified by the ITU-R. The mm-wave spectrum is the key enabling feature of the next-generation cellular system, for which the propagation channel models need to be predicted to enhance the design guidance and the practicality of the whole design transceiver system.
The present work addresses the main concepts of the propagation channel behaviour using ray tracing software package for simulation and then results were tested and compared against practical analysis in a real-time environment. The characteristics of Indoor-Indoor (LOS and NLOS), and indoor-outdoor (NLOS) propagations channels are intensively investigated at four different frequencies; 5.8 GHz, 26GHz, 28GHz and 60GHz for vertical polarized directional, omnidirectional and isotropic antennas patterns. The computed data achieved from the 3-D Shooting and Bouncing Ray (SBR) Wireless Insite based on the effect of frequency dependent electrical properties of building materials. Ray tracing technique has been utilized to predict multipath propagation characteristics in mm-wave bands at different propagation environments. Finally, the received signal power and delay spread were computed for outdoor-outdoor complex propagation channel model at 26 GHz, 28 GHz and 60GHz frequencies and results were compared to the theoretical models.
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Thurston, Mhairi. "Emotional support and inclusion for blind and partially sighted people in the United Kingdom : the development of counselling for sight loss : a pluralistic practice model." Thesis, Abertay University, 2017. https://rke.abertay.ac.uk/en/studentTheses/2282351c-9da4-4b1a-8502-dea1ba372139.
This is a narrative account of a cohesive programme of research carried out between 2010 and 2016, which resulted in ten peer-reviewed, published papers that provide an empirical basis for my thesis. The impetus for this academic exploration was provided by my personal experience of acquired sight loss, where my medical and functional needs were prioritised but my emotional needs were overlooked. The first study I undertook confirmed that people experienced negative emotional effects attributable to acquired sight loss. Subsequent studies explored the experience of social exclusion in health and education for blind and partially sighted people. Difficulties were evident across the lifespan, starting with undiagnosed refractive errors in childhood, moving to perceptions of inclusion in high school and on to experiences of exclusion in health care and engagement with leisure activities in adulthood. These papers offer a context for understanding the social and emotional effects of sight loss. Two supporting papers examined how inclusion in healthcare might be increased through nurse education and how accessible games might aid inclusion in entertainment. The thesis as a whole focuses on the development of Counselling for Sight Loss, a pluralistic practice framework for responding holistically to the emotional effects of sight loss, which are compounded by social exclusion. My theoretical model explaining the transition from sight to blindness provided a theoretical context for the thesis, advocating that different people benefit from different types of emotional support at different times in their sight loss journey. This has implications for the nature and timing of emotional support offered to blind and partially sighted people. Counselling for Sight Loss is based around a menu of therapeutic tasks, identified from analysis of systematic case study data in which clients identified helpful aspects of their therapy. These tasks provide an empirical basis for working therapeutically with clients who have visual impairment and will act as a foundation for the development of training materials. The findings of my most recent study have highlighted the need for a national framework for the provision of emotional support services for blind and partially sighted people within the United Kingdom. Currently, emotional support and counselling services are being delivered by staff with varying degrees of relevant training, including those with none. My research has contributed to the development of quality standards and training, based on my Counselling for Sight Loss data, to benefit UK service delivery. Thus my thesis represents a systematic commitment to using research to generate real-world solutions to a real-world problem: designing and delivering effective emotional support and counselling for adults with sight loss in the United Kingdom.
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Hogan, Claire Louise. "Exploring the social effects of visual loss on human interaction." Thesis, View thesis, 1995. http://handle.uws.edu.au:8081/1959.7/120.
Theories on the impact of visual loss tend to generalise and can simplify complex issues. Two extreme views are challenged that portray the impact of visual loss as catastrophic or as a minor inconvenience. The argument is put forward that the impact of visual loss can lessen with improved interaction, and this theory is tested by the author questioning and modifying her own interaction. The following themes are explored: limbo status and self-acceptance; the common stresses experienced when asking for help; and discriminatory attitudes. The research is action based, and the emphasis is on how individuals adjust and adapt to loss, rather than the stresses experienced.
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Obeidat, Huthaifa A. N. "Investigation of Indoor Propagation Algorithms for Localization Purposes: Simulation and Measurements of Indoor Propagation Algorithms for Localization Applications using Wall Correction Factors, Local Mean Power Estimation and Ray Tracing Validations." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17385.
The objective of this work is to enhance the awareness of the indoor propagation behaviour, by a set of investigations including simulations and measurements. These investigations include indoor propagation behaviour, local mean power estimation, proposing new indoor path loss model and introducing a case study on 60 GHz propagation in indoor environments using ray tracing and measurements.
A summary of propagation mechanisms and manifestations in the indoor environment is presented. This comprises the indoor localization techniques using channel parameters in terms of angle of arrival (AOA), time of arrival (TOA) and received signal strength (RSS). Different models of path loss, shadowing and fast fading mechanisms are explored. The concept of MIMO channels is studied using many types of deterministic channel modelling such as Finite Difference Time Domain, Ray tracing and Dominant path model.
A comprehensive study on estimating local average of the received signal strength (RSS) for indoor multipath propagation is conducted. The effect of the required number of the RSS data and their Euclidian distances between the neighbours samples are investigated over 1D, 2D and 3D configurations. It was found that the effect of fast fading was reduced sufficiently using 2D horizontal’s arrangement with larger spacing configuration.
A modified indoor path loss prediction model is presented namely effective wall loss model (EWLM). The modified model with wall correction factors is compared to other indoor path loss prediction models using simulation data (for 2.4, 5, 28, 60 and 73.5 GHz) and real-time measurements (for 2.4 and 5 GHz). Different operating frequencies and antenna polarizations are considered to verify the observations. In the simulation part, EWLM shows the best performance among other models. Similar observations were recorded from the experimental results.
Finally, a detailed study on indoor propagation environment at 60 GHz is conducted. The study is supported by Line of Sight (LoS) and Non-LoS measurements data. The results were compared to the simulated ones using Wireless-InSite ray tracing software. Several experiments have confirmed the reliability of the modelling process based on adjusted material properties values from measurements.
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Santoro, Patrick. "At the Mercy of Ruin: Performative Sites/Sights of Landscapes and Loss." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/dissertations/187.
While scholars of ruin have long foregrounded the importance of imagination in encountering sites of ruin, they have failed to provide concrete examples of their own imaginative experiences. This dissertation is a collection of aesthetically rendered moments at various sites of ruined landscapes and of the autobiographical (in)sights of loss I have gleaned in their presence. In speaking from a concept I refer to as the autobiographical imaginative--a performative exchange between land and self where life narratives are summoned as a result of land's presence--this project weaves biographical stories of landscapes and others with stories of my own autobiography. As such, the work utilizes multiple interpretive, ethnographic methods and representational strategies, including documentary ethnography, autoethnography, performative writing, and performance auto/ethnography, as a means of illustrating the dialogic, reflexive, evocative, and fluid relationship among researched and researcher, site and self. In doing so, it reveals how land can signify lived experience, extending the traditional geography-centered notion of landscapes toward the creation of memoryscapes, bodyscapes, and mediascapes.
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Walkenhorst, Brett T. "Achieving near-optimal MIMO capacity in a rank-deficient LOS environment." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29672.
Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009. Committee Chair: Ingram, Mary Ann; Committee Member: Durgin, Greg; Committee Member: Kenney, Steve; Committee Member: Landgren, Jack; Committee Member: Li, Ye. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Severis, Rita C. "Although to sight lost, to memory dear : representations of Cyprus by foreign travellers/artists, 1700-1955." Thesis, University of Bristol, 1999. http://hdl.handle.net/1983/0b975f1c-fbc2-4710-a0c4-e4b53cb791f3.
Zhang, Leona. "EQUITABLE ACCOUNTING BETWEEN CO-OWNERS OF REAL PROPERTY: HAVE WE LOST SIGHT OF THE CO-OWNERSHIP RELATIONSHIP?" Thesis, Sydney Law School, 2013. http://hdl.handle.net/2123/10517.
Trust, Thomas Pocklington. Helping people with sight loss in their homes: Housing related assistive technology. London: Thomas Pocklington Trust, 2003.
(Organization), Resources for Rehabilitation, ed. Living with low vision: A resource guide for people with sight loss. Lexington, Mass: Resources for Rehabilitation, 1990.
Griffin, Meridith. "Physical Activity among Older Adults with Visual Impairment: Considerations for Ageing Well with Sight Loss." In Physical Activity and Sport in Later Life, 161–74. London: Palgrave Macmillan UK, 2015. http://dx.doi.org/10.1007/978-1-137-42932-2_15.
Pillonetto, Gianluigi, Tianshi Chen, Alessandro Chiuso, Giuseppe De Nicolao, and Lennart Ljung. "Bias." In Regularized System Identification, 1–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95860-2_1.
AbstractAdopting a quadratic loss, the performance of an estimator can be measured in terms of its mean squared error which decomposes into a variance and a bias component. This introductory chapter contains two linear regression examples which describe the importance of designing estimators able to well balance these two components. The first example will deal with estimation of the means of independent Gaussians. We will review the classical least squares approach which, at first sight, could appear the most appropriate solution to the problem. Remarkably, we will instead see that this unbiased approach can be dominated by a particular biased estimator, the so-called James–Stein estimator. Within this book, this represents the first example of regularized least squares, an estimator which will play a key role in subsequent chapters. The second example will deal with a classical system identification problem: impulse response estimation. A simple numerical experiment will show how the variance of least squares can be too large, hence leading to unacceptable system reconstructions. The use of an approach, known as ridge regression, will give first simple intuitions on the usefulness of regularization in the system identification scenario.
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Arnott, Eric J. "Highs and lows." In A New Beginning in Sight, 205–8. London: CRC Press, 2022. http://dx.doi.org/10.1201/9780367813871-34.
Mansfeld, Lisa. "Out of Sight, out of Mind? Frequency of Emigrants’ Contact with Friends in Germany and its Impact on Subjective Well-Being." In IMISCOE Research Series, 229–46. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67498-4_13.
AbstractMigration implies both benefits and costs. The latter include a possible breakdown of social networks, and thus a loss of social capital. Although there is some literature on the evolution of family networks after migration, not as much is known about friendship. This article assesses the quality of friendships between German emigrants and their friends who stayed in Germany. In particular, it asks three research questions: (a) How does the quality of relationships with friends in Germany differ from the quality of other relationships after migration? (b) How is friendship quality after migration related to socio-demographic or socio-economic factors? And (c) is there a link between friendship quality and the subjective well-being of emigrants? Results indicate that friendship quality measured as frequency of contact with friends falls in the middle range of contact frequency, as emigrants typically have more contact with partners and children, but less contact with some other relatives, compared to close friends. Furthermore, several determinants of contact frequency (e.g. gender, age, length of stay and household constellation) can be identified and correlations with various aspects of subjective well-being were found.
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Garcia-Feijoo, Julian, Jose Maria Martinez-de-la-Casa, and Lucia Perucho. "Suprachoroidal MIGS Devices." In Minimally Invasive Glaucoma Surgery, 105–19. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5632-6_8.
Abstract The suprachoroidal outflow pathway has the potential to reduce intraocular pressure (IOP) significantly but has been associated with sight-threatening complications including severe and prolonged hypotony. Historically, suprachoroidal devices have been implanted ab externo requiring a conjunctival peritomy and scleral flap dissection. Additionally, the long-term efficacy of previous attempts to harness this space has been disappointing due to occlusion of implanted devices by fibrosis in the suprachoroidal space. More recently, there have been a number of suprachoroidal devices that are injected ab interno., including the CyPass Micro-Stent (Alcon Laboratories Inc., Fortworth, Texas, USA), the iStent Supra (Glaukos Corporation, San Clemente, CA, USA) and the MINIject (iSTAR Medical Isnes, Belgium). These have utilized a clear corneal entry, thereby sparing the conjunctiva. Early results with these ab-interno devices showed safety and efficacy in IOP-lowering that is similar to Schlemm’s canal minimally invasive glaucoma surgery devices and procedures. Despite the ab-interno approach, their long-term efficacy also seems to be limited by fibrosis. In addition, the first commercially available ab-interno suprachoroidal device, the CyPass Micro-Stent, has been voluntarily withdrawn globally by the manufacturer in August 2018, after 5-year follow-up data demonstrated a higher level of endothelial cell loss with the device than in controls. The iStent Supra and MINIject are not yet available commercially.
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Lidchi, Victoria G. "Has Education Lost Sight of Children?" In Positive Schooling and Child Development, 41–68. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0077-6_3.
Rautela, Akansha, and R. P. Chauhan. "Line of Sight (LOS) Stabilization Using Disturbance Observer (DOB)." In Sustainable Communication Networks and Application, 765–72. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34515-0_81.
Lin, Erika T. "Staging Sight: Visual Paradigms and Perceptual Strategies in Love’s Labor’s Lost." In Shakespeare and the Materiality of Performance, 41–69. New York: Palgrave Macmillan US, 2012. http://dx.doi.org/10.1057/9781137006509_3.
Sheikh, Haroon, Corien Prins, and Erik Schrijvers. "Demystification." In Research for Policy, 137–78. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21448-6_5.
AbstractThe first overarching societal task we address is demystification. This is all about public perceptions of new technologies. System technologies appeal particularly to the imagination, because their wide range of applications and generic nature confer a certain intangible quality. In Chap. 4 we discussed the risk that this might trigger overblown expectations and inordinate fears, effects that can make harder for a technology to integrate into society. Demystification helps counterbalance unrealistic perceptions technologies like AI and – particularly importantly – ensures that people do not lose sight of genuine opportunities and risks. As such, it enhances the quality of the AI debate by effectuating a shift from captivating perceptions to issues that merit attention.
Тези доповідей конференцій з теми "Loss of sight":
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De Beelde, Brecht, Emmeric Tanghe, David Plets, and Wout Joseph. "Outdoor Line-of-Sight Path Loss Modeling at 140 GHz." In 2022 16th European Conference on Antennas and Propagation (EuCAP). IEEE, 2022. http://dx.doi.org/10.23919/eucap53622.2022.9769586.
Haneda, K., J. Takada, and K. Takizawa. "Ultra wideband path loss modelling in a line-of-sight office." In 2nd European Conference on Antennas and Propagation (EuCAP 2007). Institution of Engineering and Technology, 2007. http://dx.doi.org/10.1049/ic.2007.0840.
Ito, Yoshinobu, Tokio Taga, Junya Muramatsu, and Noriyoshi Suzuki. "Prediction of Line-of-Sight Propagation Loss in Inter-Vehicle Communication Environments." In 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications. IEEE, 2007. http://dx.doi.org/10.1109/pimrc.2007.4394280.
Sugae, Ippei, Toshihiro Tango, Hisato Iwai, and Hideichi Sasaoka. "Simplified prediction of propagation loss over non line-of-sight intersections in V2V." In 2014 International Symposium on Antennas & Propagation (ISAP). IEEE, 2014. http://dx.doi.org/10.1109/isanp.2014.7026608.
Turkka, J., and M. Renfors. "Path loss measurements for a non-line-of-sight mobile-to-mobile environment." In 2008 8th International Conference on ITS Telecommunications (ITST). IEEE, 2008. http://dx.doi.org/10.1109/itst.2008.4740270.
Priyadarshini, R. Raj, and N. SivaKumar. "Enhancing coverage model and reducing transmission loss using Line-Of-Sight and Intermodulation Distortion analysis." In 2019 International Conference on Recent Advances in Energy-efficient Computing and Communication (ICRAECC). IEEE, 2019. http://dx.doi.org/10.1109/icraecc43874.2019.8994993.
Yang, Wang, Zhang Naitong, Zhang Qinyu, and Zhang Huanshui. "Time-Domain Investigating Path Loss Characteristics of UWB Signals in Indoor Line-of-Sight Environment." In 2006 International Conference on Wireless Communications, Networking and Mobile Computing. IEEE, 2006. http://dx.doi.org/10.1109/wicom.2006.113.
Sun, Yu, and Yafeng Zhan. "The effect of wavelength on path loss in none-line-of-sight ultraviolet communication system." In 2015 5th International Conference on Electronics Information and Emergency Communication (ICEIEC). IEEE, 2015. http://dx.doi.org/10.1109/iceiec.2015.7284475.
Gao, Xinyu, Tian Cao, Hongming Zhang, Changyong Pan, and Jian Song. "Simplified Single-Scatter Path Loss Model of LED-based Non-Line-of-Sight Ultraviolet Communications." In 2021 International Conference Engineering and Telecommunication (En&T). IEEE, 2021. http://dx.doi.org/10.1109/ent50460.2021.9681785.
Lee, Juyul, Myung-Don Kim, Hyun Kyu Chung, and Jinup Kim. "Non-line-of-sight path loss model for low-height terminals in urban street grid environments." In 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2015. http://dx.doi.org/10.1109/aps.2015.7305285.
Sosa Munguía, Paulina del Carmen, Verónica Ajelet Vargaz Guadarrama, Marcial Sánchez Tecuatl, Mario Garcia Carrasco, Francesco Moccia, and Roberto Berra-Romani. Diabetes mellitus alters intracellular calcium homeostasis in vascular endothelial cells: a systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, May 2022. http://dx.doi.org/10.37766/inplasy2022.5.0104.
Review question / Objective: What are the effects of diabetes mellitus on the calcium homeostasis in vascular endothelial cells? -To describe the effects of diabetes on the mechanisms that regulate intracellular calcium; -To describe other molecules/mechanisms that alters intracellular Ca2+ homeostasis. Condition being studied: Diabetes mellitus is a pathology with a high incidence in the population, characterized by an increase in blood glucose. People with diabetes are 2-4 times more likely to suffer from a cardiovascular complication, such as total or partial loss of sight, myocardial infarction, kidney failure, among others. Cardiovascular complications have been reported to derive from dysfunction of endothelial cells, which have important functions in blood vessels. In order to understand the etiology of this poor function of endothelial cells, it is necessary to study the molecular mechanisms involved in these functions, to identify the effects of diabetes and thus, develop new research that will mitigate the effects of this pathology.
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Whitacre, Madeline. Sights of summer from Lab’s earliest days Digitization preserves images from 1940s, features early staff enjoying Los Alamos. Office of Scientific and Technical Information (OSTI), July 2021. http://dx.doi.org/10.2172/1805715.
Udupa, Sahana. Small Platforms and the Gray Zones of Deep Extreme Speech. MediaWell, Social Science Research Council, October 2021. http://dx.doi.org/10.35650/md.2093.d.2021.
Recent trends of migration to smaller social media platforms among right wing actors have raised a caution that an excessive focus on large, transnational social media companies might lose sight of the volatile spaces of homegrown and niche platforms, which have begun to offer diverse “alternative” avenues to extreme speech. Such trends, which drew global media attention during Trump supporters’ attempted exodus to Parler, are also gaining salience in Europe and the global South. Turning the focus to these developments, this article pries open three pertinent features of extreme speech on small platforms: its propensity to migrate between platforms, its embeddedness in domestic regulatory and technological innovations, and its evolving role in facilitating hateful language and disinformation in and through deep trust-based networks. Rather than assuming that smaller platforms are on an obvious trajectory toward progressive alternatives, their diverse entanglements with exclusionary extreme speech, I suggest, should be an important focal point for policy measures.
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The glaucoma patients most at risk of sight loss were identified in a new study. National Institute for Health Research, October 2020. http://dx.doi.org/10.3310/alert_42213.
