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Low-power SiPM readout BETA ASIC for space applications

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Nuclear Science and Techniques 2024年第3期35卷 153-169页

作者： Anand Sanmukh Sergio Gómez Albert Comerma Joan Mauricio Rafel Manera Andreu Sanuy Daniel Guberman Roger Catala Albert Espinya Marina Orta Oscar de la Torre David Gascon Departament de Física Quàntica i Astrofísica(FQA) Institut de Ciències del Cosmos(ICCUB)Universitat de Barcelona(UB)08028 BarcelonaSpain Institut d’Estudis Espacials de Catalunya(IEEC) 08034 BarcelonaSpain Electronics Department Serra Hunter fellow at Polytechnic University of Catalonia(UPC)08019 BarcelonaSpain

The BETA application-specific integrated circuit(ASIC)is a fully programmable chip designed to amplify,shape and digitize the signal of up to 64 Silicon photomultiplier(SiPM)channels,with a power consumption of approximately~1 mW/*** to its dual-path gain,the BETA chip is capable of resolving single photoelectrons(phes)with a signal-to-noise ratio(SNR)>5 while simultaneously achieving a dynamic range of~4000 ***,BETA can provide a cost-effective solution for the readout of SiPMs in space missions and other applications with a maximum rate below 10 *** this study,we describe the key characteristics of the BETA ASIC and present an evaluation of the performance of its 16-channel version,which is implemented using 130 nm *** ASIC also contains two discriminators that can provide trigger signals with a time jitter down to 400 ps FWHM for 10 *** linearity error of the charge gain measurement was less than 2%for a dynamic range as large as 15 bits.

关键词： Radiation detectors Silicon photomultipliers Photon sensors Front-end electronics Mixed-mode ASICs Space technology

Expanding the liver donor pool worldwide with hepatitis C infected livers, is it the time?

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World Journal of Transplantation 2024年第2期14卷 13-27页

作者： Mai Hashem Mohammed A Medhat Doaa Abdeltawab Nahed A Makhlouf fellow of Tropical Medicine and Gastroenterology Assiut University HospitalAssiut 71515Egypt Department of Tropical Medicine and Gastroenterology Faculty of MedicineAssiut UniversityAssiut 71515Egypt Department of Tropical Medicine and Gastroenterology Al-Rajhi Liver HospitalAssiut UniversityAssiut 71515Egypt

Liver transplantation(LT)provides a life-saving option for cirrhotic patients with complications and hepatocellular *** the increasing number of liver transplants performed each year,the number of LT candidates on the waitlist remains unchanged due to an imbalance between donor organ supply and the demand which increases the waitlist time and *** donor liver transplant had a great role in increasing the donor pool and shortened waitlist time for LT ***,further strategies can be implemented to increase the pool of potential donors in deceased donor LT,such as reducing the rate of organ *** hepatitis C virus(HCV)seropositive liver grafts is one of the expanded donor organ criteria.A yearly increase of hundreds of transplants is anticipated as a result of maximizing the utilization of HCV-positive organs for HCV-negative ***-acting antiviral therapy's efficacy has revolutionized the treatment of HCV infection and the use of HCV-seropositive donors in *** American Society of Transplantation advises against performing transplants from HCV-infected liver donors(D+)into HCV-negative recipient(R-)unless under Institutional Review Board-approved study rules and with full informed consent of the knowledge gaps associated with such *** selection of patients to be transplanted with HCV-infected grafts and confirming their access to direct-acting antivirals if needed is *** and international consensuses are needed to regulate this process to ensure the maximum benefit and the least adverse events.

关键词： Donor pool Hepatitis C-viremic organs Non-viremic organs Direct acting antivirals Hepatitis C virus treated Liver transplantation

Identifying behavioral determinants and stage of readiness for performing knee massage among individuals with knee osteoarthritis:An observational study

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Journal of Integrative Medicine 2024年第1期22卷 54-63页

作者： Donya Nemati Niki Munk Navin Kaushal College of Nursing the Ohio State UniversityColumbusOH 43210USA Department of Health Sciences School of Health&Human SciencesIndiana UniversityIndianapolisIN 46202USA National Centre for Naturopathic Medicine Southern Cross UniversityLismoreNew South Wales 2480Australia Australian Research Centre in Complementary and Integrative Medicine(ARCCIM) Massage&Myotherapy Australia Fellow and Visiting Faculty of HealthUniversity of Technology SydneyNew South Wales 2007Australia

Objective Patients who experience knee osteoarthritis or chronic knee pain can alleviate their symptoms by performing self-knee *** the readiness and types of determinants needed to facilitate self-knee massage is needed to design effective,theory-informed *** primary objective of this study was to apply the transtheoretical model of behavior change to identify how factors,which include the type of knee condition and pain level,predict an individual’s readiness to adopt self-knee *** secondary objective employed the capability,opportunity and motivation-behavior(COM-B)model to identify relevant determinants that are predictive of an individual’s readiness to undertake self-knee *** An observational study design was used to recruit individuals with knee osteoarthritis(n=270)and chronic knee pain(n=130).Participants completed an online survey that assessed the transtheoretical model of behavior change stages,COM-B determinants(capability,opportunity and motivation),along with self-administered massage *** analysis of covariance and structural equation modeling were used to test the primary and secondary objective,*** Participants who had knee osteoarthritis scored higher on the action stage compared to those with chronic pain(P=0.003),and those who experienced greater level of pain scored higher in the contemplation(P<0.001)and action phases(P<0.001)of performing knee massage compared to those with milder *** COM-B structural equation model revealed self-administered knee massage to be predicted by capability(β=0.31,P=0.004)and motivation(β=0.29,P<0.001),but not opportunity(β=–0.10,P=0.39).Pain level predicted motivation(β=0.27,P<0.001),but not capability(β=0.09,P=0.07)or opportunity(β=0.01,P=0.83).Tests for mediating effects found that determinants of COM-B(motivation and capability)mediate between pain level and self-administered massage behavior(β=0.10,P=0.002).Conclusion Cl

关键词： Osteoarthritis Massage Self-management Transtheoretical model of behavior change Behavioral model

Elevation transition of aquatic insects closely matches a thermal feature in the Yungas of Northwestern Argentina

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Journal of Mountain Science 2024年第2期21卷 433-448页

作者： Alexandra BUITRAGO-GUACANAME Carlos MOLINERI Andrés LIRA-NORIEGA Daniel Andrés DOS SANTOS Neotropical Biodiversity Institute(CONICET-UNT) UNT-DomesHorco Molle S/N4107 TucumánArgentina CONACYT Research fellow Network of Advanced Molecular StudiesInstitute of Ecology A.COld Road to Coatepec 351El HayaCP 91073XalapaVeracruzMexico Biostatistics Chair Faculty of Natural Sciences and IMLNational University of TucumánSan Miguel de TucumánMiguel Lillo 2054000 TucumánArgentina

Temperature is a key factor that shapes the distribution of *** knowledge about how species respond to temperature is relevant to devise strategies for addressing the impacts of climate *** insects are particularly vulnerable to climate change,yet there is still much to learn about their ecology and *** the Yungas ecoregion of Northwestern Argentina,cold-and warm-adapted species of the orders Ephemeroptera,Plecoptera,and Trichoptera(EPT)are segregated by *** modeled the ecological niche of South American EPT species in this region using available data and projected their potential distribution in geographic *** were grouped based on their ecogeographic similarity,and we analyzed their replacement pattern along elevation gradients,focusing on the ecotone where opposing thermal preferences *** this interface,we identified critical points where the combined incidence of cold and warm assemblages maximizes,indicating a significant transition *** found that the Montane Cloud Forest holds the interface,with a particularly greater suitability at its lower *** main axis of the interface runs in a N-S direction and falls between 14°C-16°C mean annual *** probability of a particular location within a basin being classified as part of the interface increases as Kira’s warmth index approaches a score around *** the interface is critical for defining the thermal limits of species distribution and designing biomonitoring *** in the location of thermal constants related to mountainous ecotones may cause vertical displacement of aquatic insects and vegetation *** have recognized significant temperature thresholds that serve as indicators of suitability for the *** global warming is anticipated to shift these indicators,we suggest using them to monitor the imprints of climate change on mountain ecosystems.

关键词： Austral Yungas Ecological Niche Model Ephemeroptera Kira’s warmth index Plecoptera Trichoptera

人工智能个性化价值对齐的法理逻辑与制度基础

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China Legal Science 2024年第4期12卷 109-132页

作者：王沛然 Ph.D.Candidate at Fudan University Law School and Research fellow at Fudan Artificial Intelligence Regulation Laboratory

*** The digitalization of society is evolving deeper,and the trend of interconnectedness is subtly reshaping the relationship between subjects and *** the rapid development of artificial intelligence(A),machine autonomy is rapidly increasing,and large language models that use natural language as a bridge for human-machine communication are blurring the traditional boundaries between the human body and technology.

关键词： technology. 人工智能 language

Deposition of In2-xFexO3 Films by Ultrafast Microwave Heating Technique

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材料科学与工程（中英文A版） 2011年第6期1卷 869-871页

作者： Syed B. Qadri Charbel Fahed Nadeemullah A. Mahadik Heungsoo Kim Michael Osofsky Mulpuri V.Rao US Naval Research Laboratory Washington DC 20375 nrc/nrl postoctoral fellow Electrical and Computer Engineering George Mason University Fairfax Virginia 22030

In this paper, we present an ultra fast deposition of oxide films using microwave heating. Using SiC as a susceptor, InFeO powder was placed on top of it in a microwave heating chamber. By heating the SiC substrate to 2,100 °C using microwaves and within 3-4 seconds, the InFeO film was deposited on Si substrate placed right at the top of the chamber. The X-ray diffraction scans taken of the target and the film indicated a one-to-one correspondence with the target material and the deposited film in terms of stoichiometry.

关键词：微波加热技术氧化物薄膜快速沉积 X-射线衍射 Si衬底化学计量学薄膜沉积一一对应

SPACE AND TOPOGRAPHY IN ANCIENT EGYPT

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Journal of Ancient Civilizations 2023年第1期38卷 69-124,127页

作者： Hannah Pethen Honorary fellow University of Liverpool

Introduction"Space"and "topography"have very specific meanings in the modern world. "Space"is an external void,an empty physical area to be acted upon. "Topography"is the "configuration of the surface relief"of the earth,a human body,or another *** words are technical terms implying the existence of externalities or abstractions;'spaces and topography that can be measured,recorded,observed,and acted *** this they are associated with the Enlightenment concept of "landscape"as external,viewable,and empirically understandable through objective scientific observation and recording,often for imperialist purposes.

关键词： SPACE recording earth

Next-generation power delivery system with resiliency and environmental affinity

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Global Energy Interconnection 2022年第3期5卷 274-280页

作者： Koichi Nara IEEE Life fellow Prof.Emeritus Ibaraki University4-12-1 NakanarusawaHitachi Ibaraki 316-8511Japan

Renewable energy resources play an important role in the realization of the carbon *** microgrid can efficiently integrate numerous renewable energy systems into power distribution systems to realize power supply resiliency and environmental *** paper reviews the current trend of microgrid and networked microgrid technologies worldwide,particularly in Japan,including the Flexible,Reliable,and Intelligent Energy Delivery System(FRIENDS)and some other examples of the networked *** recent digitalized control functions of the microgrid and related systems are also introduced.

关键词： Microgrid Networked microgrid Resilience Carbon neutrality Digitalized control FRIENDS

Retinal ganglion cell protection by hop-flower extract as a novel neuroprotective strategy for glaucoma

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Neural Regeneration Research 2022年第6期17卷 1267-1268页

作者： Tomoko Hasegawa Hanako Ohashi Ikeda Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of MedicineKyotoJapan Research fellow of Japan Society for the Promotion of Science TokyoJapan

In glaucoma,a leading cause of blindness,retinal ganglion cells are progressively *** pressure reduction is the only established treatment for glaucoma(Collaborative Normal-Tension Glaucoma Study Group,1998;Vass et al.,2007).However,in some cases,visual field loss progresses despite sufficiently reduced intraocular pressure(Collaborative Normal-Tension Glaucoma Study Group,1998;Killer and Pircher,2018).While intraocular pressure and age are known risk factors for glaucoma(Ernest et al.,2013),the underlying mechanisms of glaucoma progression are not fully understood.

关键词： glaucoma al. protective