cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
First line Antiretroviral Treatment Failure and Factors Associated with it in Addis Ababa, 2009
Creators: name: Ejigu, Selamawit
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2009

description: Background Monitoring patient response with viral load, which is the gold standard, is not feasible in resource limited settings. Therefore it's essential to look for factors that can be used to identify those patients at higher risk of treatment failure in these settings. Objective To explore factors that can be used to identify those at a higher risk of treatment failure. Method A Nested case-control study from a cohort of HIV patients on ART at government hospitals in Addis Ababa was conducted through review of medical records. A total sample size of 423 with 141 patients with failure of their first line regimen (cases) and 282 patients without failure (controls) is used. Base line socio-demographic and clinical information were collected. Comparison of survival times were made through Kaplan Meier and Log-rank tests. Independent predictors of treatment failure were identifies using multivariate COX regression analysis. Results The mean survival time (without treatment failure) was 53 months (95% CI, 50 – 57). Females were found to have a higher survival time of 57months (95%CI, 52-62, P= 0.01) and males have a significantly higher risk of developing treatment failure with an adjusted HR of 1.518 (95%CI, 1.084-2.125, P=0.01). Those with two or more episodes of poor adherence during their follow-up have a significantly higher adjusted hazard ratio of 4.02 (95% CI, 2.71, 5.96, P=<0.001) compared to those with no episode of poor adherence. Missed appointment is another independent predictor of treatment failure with adjusted HR of 1.77 (1.11, 2.96, P= 0.03). Conclusion This study has shown that non- adherence to medication and clinic visits are independently associated with treatment failure. Following patients closely for their level of adherence and their trend of missing clinic visits can be used to help identify those at higher risk of treatment failure. Providing intense adherence counseling for these patients may prevent occurrence of failure.
The simultaneous determination of heavy metals using pH gradient FIA with fluorescence detection
Creators: name: Porter., Nichola Anne
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A millisecond pulsar candidate in a 21-hr orbit: 3FGL J0212.1+5320
Creators: name: Linares, Manuel
name: Miles-Páez, Paulo
name: Rodríguez-Gil, Pablo
name: Shahbaz, Tariq
name: Casares, Jorge
name: Fariña, Cecilia
name: Karjalainen, Raine
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the discovery of a variable optical counterpart to the unidentified gamma-ray source 3FGL J0212.1+5320, and argue this is a new compact binary millisecond pulsar (MSP) candidate. We show 3FGL J0212.1+5320 hosts a semi-detached binary with a 0.86955$\pm$0.00015 d orbital period and a F6-type companion star at an estimated distance of D=1.1$\pm$0.2 kpc, with a radial velocity curve semi-amplitude K$_2$=214.1$\pm$5.0 km s$^{-1}$ and a projected rotational velocity of Vsin(i)=73.2$\pm$1.6 km s$^{-1}$. We find a hard X-ray source at the same location with a 0.5$-$10 keV luminosity L$_\mathrm{X}$=2.6$\times$10$^{32}$ (D/1.1 kpc)$^2$ erg s$^{-1}$, which strengthens the MSP identification. Our results imply a mass ratio q=M$_2$/M$_1$=0.26$^{+0.02}_{-0.03}$ if the companion star fills its Roche lobe, and q$\gtrsim$0.26 in any case. This classifies 3FGL J0212.1+5320 as a "redback" binary MSP; if its MSP nature is confirmed, this will be the brightest compact binary MSP in the optical band (r'$\simeq$14.3 mag) and will have the longest orbital period among Galactic field systems (nearly 21 hr). Based on the light curve peak-to-peak amplitude ($Δ$r=0.19 mag), we further suggest that the orbital inclination is high and the putative pulsar mass is close to canonical (M$_1$$\simeq$1.3$-$1.6 M$_\odot$). Finally, we discuss the lack of heating signatures and asymmetric optical light curves in the context of other redback MSPs.
description: Accepted for publication in MNRAS; 9 pages, 8 figures, minor changes after referee suggestions
Application of Good Touch, Bad Touch & Sound Touch Techniques in Agriculture for Plants : An overview
Creators: name: Er. Virendra Foke & Ms. Snehal Kadam
Publisher: name: trends in Agriculture Science
Year: 2024

description: "Good touch" refers to Hugs and kisses from family and friends, High-fives and fist bumps from friends, Pats on the back or shoulder from coaches or teachers, Physical contact that makes you feel safe and happy etc while "Bad touch" refers to Unwanted or surprise touching, touching private parts (areas covered by a swimsuit), Touching that makes you feel uncomfortable, scared, or hurt, Physical contact that makes you feel unsafe or unsure etc. That's why It's essential to teach children to Say "no" or "stop" if they feel uncomfortable, tell a trusted adult if someone touches them in a way that feels bad, remember that their body belongs to them, and they have the right to control who touches it. The trees or plants can't talk like human to express their uncomfortness related to Touch. Trees express "bad touch" or stress caused by physical harm, pests, or diseases through various visual and biological responses. Sound Touch refers to use of music for plant growth and now a day gaining popularity in agriculture.
Willingness of Pregnant Women Attending Antenatal Care towards Voluntary Counseling and Testing
Creators: name: Ambaye, Yemane
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2006

description: Voluntary HIV counseling and testing (VCT) is one of the priority interventions in HIV/AIDS prevention, care and support. VCT is an entry point for the prevention of HIV transmission from mother to child and accessing VCT benefit from PMTCT services. This study was designed, to assess the magnitude and identify factors associated with pregnant women's expressed willingness towards VCT and describe their knowledge. Cross-sectional institution based interview survey of 421 pregnant women was held in one district hospital, two health centers and three health stations. The study was complimented with four FGD and Key-informant interviews. The study was done in Wukro & Kleteawlaelo Woredas of Tigray Regional State, north Ethiopia. The expressed willingness of study participants for VCT was found to be 74.1%. On examination of multiple factors to detect whether there is association with willingness to VCT or not: being multigravida (AOR=7.1, 95%CI=1.05,48.3),intention to discuss HIV positive result with partner(AOR=7.01, 95% CI=1.74,28.15), believing partner has a greater role for VCT(AOR=3.84, 95%CI=1.12,13.23)were found to have an association .The level of awareness on VCT and PMTCT was 80.3 and 88.5% respectively. This study revealed high-level of awareness about HIV, with as well marked misconception. Expressed willingness was lower when compared to other studies and it was influenced mainly by gravidity of the woman and male partners. Male partner involvement and coordinated IEC can assist to overcome barriers of willingness to VCT. This study could contribute for VCT and PMTCT program expansion in the study area and elsewhere with similar characteristics
A method for reconstructing the quaternary climates of Australia using fossil beetles
Creators: name: Porch., Nicholas A.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Sexual Violence and Substance use among Female Students of Mizan-tepi University
Creators: name: Henok, Andualem
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: Background: Sexual violence is a common and serious public health problem. The most common place where sexual violence is experienced is school. Sexual violence usually occurs when she is unable to understand the situation. The most important cause for this is substance use. Objective: The objective of the study was to assess the prevalence of sexual violence and its association with substance use among female students in Mizan-Tepi University. Methods: Cross sectional institution based survey, using self-administered, anonymous questionnaire and focus group discussions were done among female students of Mizan-Tepi University from January to February 2012 to assess prevalence of sexual violence and its association with substance use. A total of 604 female students were involved in the study. Prevalence was determined using frequencies and logistic regression was used to estimate odds ratios and 95% confidence interval using SPSS statistical package. Result: Among respondents 66.3% and 63% were sexually harassed since joining the university and in the current academic year respectively. The prevalence of attempted rape was 19.6% and 13.7% since joining the university and in current academic year respectively. The magnitude of rape was 13.5% and 8.9% since joining the university and in current academic year respectively. The life time prevalence of sexual harassment, attempted rape and completed rape was 75.4%, 33.5% and 20.7% respectively. Experiencing of rape in current year was significantly associated with khat chewing (AOR= 4.24: 95% CI 1.92, 9.37), smoking cigarettes (AOR= 6.76: 95% CI 2.99, 15.28), drinking alcohol (AOR= 3.27: 95% CI 1.51, 7.11), having drinking friend (AOR= 5.60: 95% CI 2.46, 12.74) and using other substances like cocaine (AOR= 6.43: 95% CI 1.91, 21.64). FGD discussants explained that sexual violence is prevalent due to lack of facilities and availability of substances around the campus. Conclusion: The magnitude of sexual violence among female students of Mizan-Tepi University was very high. There was significant association between rape and substance use by female students. Therefore it needs urgent attention from concerned bodies to alleviate the problem.
Turbulent regimes in collisions of 3D Alfvén-wave packets
Creators: name: Cerri, Silvio Sergio
name: Passot, Thierry
name: Laveder, Dimitri
name: Sulem, Pierre-Louis
name: Kunz, Matthew W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Using 3D gyrofluid simulations, we revisit the problem of Alfven-wave (AW) collisions as building blocks of the Alfvenic cascade and their interplay with magnetic reconnection at magnetohydrodynamic (MHD) scales. Depending on the large-scale nonlinearity parameter $χ_0$ (the ratio between AW linear propagation time and nonlinear turnover time), different regimes are observed. For strong nonlinearities ($χ_0\sim1$), turbulence is consistent with a dynamically aligned, critically balanced cascade--fluctuations exhibit a scale-dependent alignment $\sinθ_k\propto k_\perp^{-1/4}$, a $k_\perp^{-3/2}$ spectrum and $k_\|\propto k_\perp^{1/2}$ spectral anisotropy. At weaker nonlinearities (small $χ_0$), a spectral break marking the transition between a large-scale weak regime and a small-scale $k_\perp^{-11/5}$ tearing-mediated range emerges, implying that dynamic alignment occurs also for weak nonlinearities. At $χ_0<1$ the alignment angle $θ_{k_\perp}$ shows a stronger scale dependence than in the $χ_0\sim1$ regime, i.e. $\sinθ_k\propto k_\perp^{-1/2}$ at $χ_0\sim0.5$, and $\sinθ_k\propto k_\perp^{-1}$ at $χ_0\sim0.1$. Dynamic alignment in the weak regime also modifies the large-scale spectrum, scaling roughly as $k_\perp^{-3/2}$ for $χ_0\sim0.5$ and as $k_\perp^{-1}$ for $χ_0\sim0.1$. A phenomenological theory of dynamically aligned turbulence at weak nonlinearities that can explain these spectra and the transition to the tearing-mediated regime is provided; at small $χ_0$, the strong scale dependence of the alignment angle combines with the increased lifetime of turbulent eddies to allow tearing to onset and mediate the cascade at scales that can be larger than those predicted for a critically balanced cascade by several orders of magnitude. Such a transition to tearing-mediated turbulence may even supplant the usual weak-to-strong transition.
description: 13 pages, 5 figures, 1 table; accepted for publication in The Astrophysical Journal
title: Psychische Kosten von Formen der Selbstkontrolle bei der Arbeit
title: Entwicklung, Rekonzeptualisierung und Validierung eines Messinstruments
titleType: AlternativeTitle
Creators: name: Neubach, Barbara
Publisher: name: Universität Dortmund
Year: 2005
Subjects: subject: Arbeitsbelastungen
subject: Emotionale Dissonanz
subject: Burnout
subject: Fehlzeiten
subject: 150

description: An immer mehr Arbeitsplätzen wird heute ein kontrolliertes und zielorientiertes Verhalten von den Beschäftigten erwartet: Betrieblicherseits geforderte Verhaltensweisen sollen gezeigt und gleichzeitig spontane Verhaltenstendenzen unterdrückt werden. Dies erfordert eine mehr oder weniger bewusste Verhaltenssteuerung. Ergebnisse aus der Grundlagenforschung lassen vermuten, dass ein derart kontrolliertes Verhalten mit psychischen Kosten verbunden ist. In der Arbeits- und Organisationspsychologie ist aber über die Auswirkungen tätigkeits-bedingter Selbstkontrolle bislang wenig bekannt. In der vorliegenden Arbeit werden zwei Messinstrumente entwickelt und validiert, um die am Arbeitsplatz geforderte Selbstkontrolle - im Sinne einer Hemmung habitueller Reaktions-tendenzen - mittels Fragebogen zu erfassen und ihre Beanspruchungswirksamkeit zu bewerten. Dabei wird zum einen geforderte Selbstkontrolle als übergreifendes Konstrukt operationalisiert, zum anderen wird emotionale Dissonanz als geforderte Emotionskontrolle, und damit als Teilaspekt der Selbstkontrolle, rekonzeptualisiert. Die Konstruktion der Skalen und eine erste Einschätzung der Validität erfolgen in der ersten Studie anhand von Befragungs- und Fehlzeitendaten von 266 Mitarbeitern in Einrichtungen der stationären Altenpflege. In einer zweiten Studie erfolgt die Kreuzvalidierung anhand von Quer- und Längsschnittbefragungsdaten von 144 Mitarbeitern einer Krankenkasse. Die Analysen zeigen, dass die Skala emotionale Dissonanz gute psychometrische Eigenschaften aufweist. Sie verfügt - im Sinne eines belastenden Aufgabenmerkmals - den Befunden zufolge über konvergente und diskriminante Validität. Emotionale Dissonanz erwies sich in Regressionsanalysen zur Vorhersage von Indikatoren der Beanspruchung in beiden Stichproben, sowohl im Querschnitt als auch im Längsschnitt als signifikanter Einzel-prädiktor. Dies spricht für die Vorhersagevalidität der Skala. Ihr Effekt auf die Beanspruchungen war auch dann statistisch bedeutsam, wenn der Einfluss von biografischen Variablen und einer Reihe weiterer Arbeitsmerkmale kontrolliert wurde. Dies spricht für die inkrementelle Validität. Die Skala geforderte Selbstkontrolle weist ebenfalls gute psychometrische Gütekriterien auf. Es finden sich eine Reihe von Hinweisen auf die Validität der Skala, die aber letztlich noch nicht als gesichert angenommen werden kann. Die Beanspruchungswirksamkeit der geforderten Selbstkontrolle wird in signifikanten Wechselwirkungen bei der Vorhersage von Indikatoren der Beanspruchung deutlich, Haupteffekte sind in den hier untersuchten Stichproben allerdings nicht zu beobachten.
HBP Leaders' Commitment to Equal Opportunities and Inclusiveness
Creators: name: The Human Brain Project, Diversity and Equal Opportunities Committee
name: Grasenick, Karin
Publisher: name: Zenodo
Year: 2023
Subjects: equal opportunities
leadership
science
project
STEM
guideline
gender
diversity

description: Enhancing equal opportunities for all affiliated personnel, at all career levels and functions, with a specific focus on gender is difficult to achieve complex large-scale science. The Human Brainproject (HBP) encouraged each person with leadership responsibility to sign and actively support the principles set out in the HBP Vision "to Work for and Engage in Activities and Research for Equality in the HBP" and the HBP Mission for Equal Opportunities. Accordingly, the "HBP checklist for Equal Opportunities" offers an opportunity to reflect and take action.
Manipulating single excess electrons in monolayer transition metal dihalide
Creators: name: Cai, Min
name: Liang, Yunfan
name: Jiang, Zeyu
name: Miao, Mao-Peng
name: Liu, Zhen-Yu
name: Zhang, Wen-Hao
name: Liao, Xin
name: Cheng, Wei
name: West, Damien
name: Zhang, Shengbai
name: Fu, Ying-Shuang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polarons are entities of excess electrons dressed with local response of lattices, whose atomic-scale characterization is essential for understanding the many body physics arising from the electron-lattice entanglement, but yet difficult to achieve. Here, using scanning tunneling microscopy and spectroscopy (STM/STS), we show the visualization and manipulation of single polarons with different origin, i.e., electronic and conventional polarons, in monolayer CoCl2, that are grown on HOPG substrate via molecular beam epitaxy. Four types of polarons are identified, all inducing upward local band bending, but exhibiting distinct appearances, lattice occupations, polaronic states and local lattice distortions. First principles calculations unveil three types of polarons are stabilized by electron-electron interaction. The type-4 polaron, however, are driven by conventional lattice distortions. All the four types of polarons can be created, moved, erased, and moreover interconverted individually by the STM tip, allowing precise control of single polarons unprecedently. This finding identifies the rich category of polarons and their feasibility of manipulation in CoCl2, which can be generalized to other transition metal halides.
description: 23 pages, 5 figures
Effect of quantum noise on deterministic joint remote state preparation of a qubit state via a GHZ channel
Creators: name: Wang, Ming-Ming
name: Qu, Zhi-Guo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum secure communication brings a new direction for information security. As an important component of quantum secure communication, deterministic joint remote state preparation (DJRSP) could securely transmit a quantum state with 100\% success probability. In this paper, we study how the efficiency of DJRSP is affected when qubits involved in the protocol are subjected to noise or decoherence. Taking a GHZ based DJRSP scheme as an example, we study all types of noise usually encountered in real-world implementations of quantum communication protocols, i.e., the bit-flip, phase-flip (phase-damping), depolarizing, and amplitude-damping noise. Our study shows that the fidelity of the output state depends on the phase factor, the amplitude factor and the noise parameter in the bit-flip noise, while the fidelity only depends on the amplitude factor and the noise parameter in the other three types of noise. And the receiver will get different output states depending on the first preparer's measurement result in the amplitude-damping noise. Our results will be helpful for improving quantum secure communication in real implementation.
Fair Throughput Optimization with a Dynamic Network of Drone Relays
Creators: name: Arribas, Edgar
name: Mancuso, Vincenzo
name: Cholvi, Vicent
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Aiding the ground cellular network with aerial base stations carried by drones has experienced an intensive raise of interest in the past years. Reconfigurable air-to-ground channels enable aerial stations to enhance users access links by means of seeking good line-of-sight connectivity while hovering in the air. In this paper, we propose an analytical framework for the 3D placement of a fleet of coordinated drone relays. This framework optimizes network performance in terms of user throughput fairness, expressed through the α-fairness metric. The optimization problem is formulated as a mixed-integer non-convex program, which is intractable. Hence, we propose an extremal-optimization-based algorithm, Parallelized Alpha-fair Drone Deployment, that solves the problem online, in low-degree polynomial time. We evaluate our proposal by means of numerical simulations over the real topology of a dense city. We discuss the advantages of integrating drone relay stations in current networks and test several resource scheduling approaches in both static and dynamic scenarios, including with progressively larger and denser crowds.
Comparison of dust charging between Orbital-Motion-Limited theory and Particle-In-Cell simulations
Creators: name: Delzanno, Gian Luca
name: Tang, Xian-Zhu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Orbital-Motion-Limited (OML) theory has been modified to predict the dust charge and the results were contrasted with the Whipple approximation [Tang and Delzanno, Phys. Plasmas 21, 123708 (2014)]. To further establish its regime of applicability, in this paper the OML predictions (for a non-electron-emitting, spherical dust grain at rest in a collisionless, unmagnetized plasma) are compared with Particle-In-Cell simulations that retain the absorption radius effect. It is found that for large dust grain radius $r_d$ relative to the plasma Debye length $λ_D$, the revised OML theory remains a very good approximation as, for the parameters considered ($r_d/λ_D\le10$, equal electron and ion temperatures), it yields the dust charge to within $20\%$ accuracy. This is a substantial improvement over the Whipple approximation. The dust collected currents and energy fluxes, which remain the same in the revised and standard OML theories, are accurate to within $15-30\%$.
description: 15 pages, 2 figures. Copyright (2015) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Phys. Plasmas 22, 113703 (2015) and may be found at: http://scitation.aip.org/content/aip/journal/pop/22/11/10.1063/1.4935697
Prevalence and Determinants of Diabetes Mellitus and Impaired Fasting Glucose among Workers at the Spare Parts Share Company, Akaki, Ethiopia
Creators: name: Egonmwan, Perpetua
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2003

description: The study investigates the prevalence of diabetes mellitus and impaired fasting glucose among workers at the Spare Parts Share Company in Akaki, a suburb of Addis Ababa, Ethiopia. The choice of the Akaki factory, with its 600-strong workers, was made in furtherance of the long-term interest of the Department of Community Health of Addis Ababa University, to undertake a longitudinal research on Non-communicable diseases (NCDs) among three of the largest factories in the country, including Akaki. It is intended that the outcome of this study and others that may follow, would contribute to the much needed data source on NCDs in the country. The method applied for the research was a cross-sectional, descriptive approach, using the convenience sampling technique. This technique was used to enable the researcher achieve a reasonable sample size, given the total population of the factory. Moreover, the study applied a three-step approach, consistent with the WHO procedure, namely, the use of structured questionnaire to assess risk factor prevalence, anthropometric measurements and lastly, biochemical testing for blood glucose levels. Out of the 533 eligible subjects in the factory, 475 were studied, with a non-response rate of 11%. Overall, the prevalence of impaired glucose homeostasis in the population was 6.9 ±0.3%. Diabetes was present in 3.4 ±0.2%, while impaired fasting glucose was found in 3.6 ±0.4% of the studied population. The overall prevalence of hypertension in the studied population was 22.1 ±0.4% while 25.9% are overweight: these figures were higher than those reported from previous studies in the country. Moreover, among the 14 diabetics, 38% had hypertension, and 47% of those with impaired fasting glucose also had hypertension (p<0.05). 56% of subjects with diabetes were found to be overweight, while only 19% of them had obesity (p <0.05). The overall results of the study are significant. They indicate, among other things, that the prevalence of diabetes in this mostly young adult, urban population is high, as is hypertension. Advancing age and a positive parental history of diabetes proved to be two of the most important determinants of diabetes prevalence in this population. Unlike in most other studies, obesity was found not to be an independent risk factor for impaired glucose homeostasis among the Akaki workers. Finally, the study recommends that Non-communicable diseases awareness programmes should be established in the country, together with periodic screening of high-risk urban and suburban populations (if resources are available) so as to detect early cases before the onset of complications. Longitudinal studies should also be set up to monitor trends in risk factor prevalence as well as evaluate intervention programmes.
The hydrodynamic stability of gaseous cosmic filaments
Creators: name: Birnboim, Yuval
name: Padnos, Dan
name: Zinger, Elad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Virial shocks at edges of cosmic-web structures are a clear prediction of standard structure formation theories. We derive a criterion for the stability of the post-shock gas and of the virial shock itself in spherical, filamentary and planar infall geometries. When gas cooling is important, we find that shocks become unstable, and gas flows uninterrupted towards the center of the respective halo, filament or sheet. For filaments, we impose this criterion on self-similar infall solutions. We find that instability is expected for filament masses between $10^{11}-10^{13}M_\odot Mpc^{-1}.$ Using a simplified toy model, we then show that these filaments will likely feed halos with $10^{10}M_{\odot}\lesssim M_{halo}\lesssim 10^{13}M_{\odot}$ at redshift $z=3$, as well as $10^{12}M_{\odot}\lesssim M_{halo}\lesssim 10^{15}M_{\odot}$ at $z=0$. The instability will affect the survivability of the filaments as they penetrate gaseous halos in a non-trivial way. Additionally, smaller halos accreting onto non-stable filaments will not be subject to ram-pressure inside the filaments. The instreaming gas will continue towards the center, and stop either once its angular momentum balances the gravitational attraction, or when its density becomes so high that it becomes self-shielded to radiation.
description: 6 pages, 5 figures,Published
A pseudo-fermion method for the exact description of fermionic environments: from single-molecule electronics to Kondo resonance
Creators: name: Cirio, Mauro
name: Lambert, Neill
name: Liang, Pengfei
name: Kuo, Po-Chen
name: Chen, Yueh-Nan
name: Menczel, Paul
name: Funo, Ken
name: Nori, Franco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a discrete fermion approach for modelling the strong interaction of an arbitrary system interacting with continuum electronic reservoirs. The approach is based on a pseudo-fermion decomposition of the continuum bath correlation functions, and is only limited by the accuracy of this decomposition. We show that to obtain this decomposition one can allow for imaginary pseudo-fermion parameters, and strong damping in individual pseudo-fermions, without introducing unwanted approximations. For a non-interacting single-resonant level, we benchmark our approach against an analytical solution and an exact hierachical-equations-of-motion approach. We also show that, for the interacting case, this simple method can capture the strongly correlated low-temperature physics of Kondo resonance.
description: 15 pages, 4 figures
Demand for Long Acting Contraceptive Methods and Associated Factors Among Family Planning Service Users in Public Health Centers, Addis Ababa, Ethiopia, 2017
Creators: name: Debella, Bahrnesh
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Background: -All individuals and couples have a basic human right to decide freely and responsibly the number, spacing, and timing of their child. However, the use of FP in Ethiopia has been limited to short-acting methods due to limited access to LAFPM, commodity shortages, and lack of skilled health care providers to offer services at the community level. The prevalence of LACMs use is 13% in the world and LACM use coverage is 2%, for Sub-Saharan Africa [6] and for Ethiopia, LACM use coverage is 3.7% [7] also the prevalence of implant in 2000, 2005, 2011 and 2016 show (0, 0.3, 3, 8) respectively but still the trend show slow improvement [8]. Objective: To measure the demand for long acting contraceptive methods and associated factors among family planning service users in public health centers, Addis Ababa, Ethiopia, 2017. Methods: Cross-sectional facility based descriptive quantitative study was conducted from July 1 - August 1, 2017 in selected government HCs in Addis Ababa, Ethiopia. Multi stage sampling technique was used to select the 848 study samples. A pre-tested and structured questionnaire was used to collect the data. The data analysis was performed using Statistical Package for Social Sciences (SPSS) version 20 software. Descriptive, bivariate and multivariable logistic regression analysis was done. Odds ratio from logistic regression was used to identify their association with demand of LACMs. P-value <0.05 was considered to show statistical significance. Result: The demand for LACM was 650 (76.7%). Among demanded LACM, 305 (36%) meet need and 345 (40.7%) unmet need. The multivariate analysis showed that being married [AOR: 0.562(0.335, 0.941)], primigravida [AOR: 0.402(0.228, 0.709)], ever heard about LACM [AOR: 2.762(1.529, 4.991)], knowledge on LACM [AOR: 2.210(1.298, 3.763)], attitude [AOR: 15.755 (9.628, 25.782)], perceived good quality service at health facility [AOR: 4.219(2.781, 6.40)] were found predictors of the demand for LACM in this study. Conclusion: the demand for LACM according to this study was high and the unmet need for LACM also high. Marital status, gravidity, information on LACM, knowledge on LACM, attitude on LACM and perceived quality of health facility service affect the demand for LACM in this study. Recommendation: - Based on this study the demand and unmet need for LACM was found high so it is better to utilize the opportunity to provide the service to meet
Online citizen science with the Zooniverse for analysis of biological volumetric data.
Creators: name: Smith, Patricia
name: King, Oliver NF
name: Pennington, Avery
name: Tun, Win
name: Basham, Mark
name: Jones, Martin L
name: Collinson, Lucy M
name: Darrow, Michele C
name: Spiers, Helen
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: classificationCode: Imaging
subject: Imaging

description: Public participation in research, also known as citizen science, is being increasingly adopted for the analysis of biological volumetric data. Researchers working in this domain are applying online citizen science as a scalable distributed data analysis approach, with recent research demonstrating that non-experts can productively contribute to tasks such as the segmentation of organelles in volume electron microscopy data. This, alongside the growing challenge to rapidly process the large amounts of biological volumetric data now routinely produced, means there is increasing interest within the research community to apply online citizen science for the analysis of data in this context. Here, we synthesise core methodological principles and practices for applying citizen science for analysis of biological volumetric data. We collate and share the knowledge and experience of multiple research teams who have applied online citizen science for the analysis of volumetric biological data using the Zooniverse platform ( www.zooniverse.org ). We hope this provides inspiration and practical guidance regarding how contributor effort via online citizen science may be usefully applied in this domain.
Ορθοδοξία και σύγχρονος κόσμος στην εργογραφία του π. Σεραφείμ Ρόουζ
Creators: name: Σαββίδου, Αγάπη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Πνευματική μεταστροφή
Αδελφότητα Αγίου Γερμανού της Αλάσκας
Η ψυχή μετά τον θάνατο
Spiritual transformation
Fraternity of Saint German of Alaska
The soul after death

description: Σκοπός της διπλωματικής αυτής εργασίας ήταν να καταδειχθεί η προσφορά της εργογραφίας του π. Σεραφείμ Ρόουζ στην Ορθοδοξία και τον σύγχρονο κόσμο. Αρχικά, σκιαγραφήσαμε την προσωπικότητα του π. Σεραφείμ και παρουσιάσαμε τα στάδια της πνευματικής του μεταστροφής. Ακολούθως, αναφερθήκαμε στη διακονία του π. Σεραφείμ προς την Ορθοδοξία και τον σύγχρονο κόσμο μέσα από την ιεραποστολική του δραστηριότητα με ιδιαίτερη αναφορά στους δύο σημαντικούς σταθμούς, το περιοδικό Ο Ορθόδοξος Λόγος και την αδελφότητα του Αγίου Γερμανού της Αλάσκας στην Πλατίνα. Στη συνέχεια, παρουσιάσαμε τη σχέση του π. Σεραφείμ με την Αγία Γραφή και τους αγίους Πατέρες της Εκκλησίας του Χριστού, ώστε να θεωρείται ένας γνήσιος συνεχιστής της Πατερικής Παράδοσης, ενώ προσεγγίσαμε τον π. Σεραφείμ μέσα από την ιδιότητά του ως πνευματικό πατέρα και παρουσιάσαμε την πνευματική του παρακαταθήκη. Τέλος, ασχοληθήκαμε με την αναλυτική παρουσίαση του μεταφρασμένου στα ελληνικά συγγραφικού έργου του π. Σεραφείμ με κύριο στόχο να καταστήσουμε γνωστή την πνευματική κατάσταση που επικρατούσε στην Αμερική και να μελετήσουμε τα θέματα που απασχολούσαν την ορθόδοξη χριστιανική κοινότητα της Αμερικής κατά τις δεκαετίες από το 1960 μέχρι και το 1980. Εν κατακλείδι, ο π. Σεραφείμ συνέγραψε τα βιβλία του, με μοναδικό σκοπό να προβάλει την ορθόδοξη χριστιανική διδασκαλία και να επιβεβαιώσει το διαχρονικό χαρακτήρα της ορθόδοξης αποστολικής και πατερικής παράδοσης μέσα στη σύγχρονη πραγματικότητα
description: The purpose of this thesis was to demonstrate the contribution of the work of Fr. Seraphim Rose to Orthodoxy and the modern world. First, we outlined the personality of Fr. Seraphim and presented the stages of his spiritual transformation. Next, we referred to the ministry of Fr. Seraphim to Orthodoxy and the modern world through his missionary activity with special reference to the two important stations, meaning the magazine “The Orthodox Word” and the fraternity of St. German of Alaska in Platina. Next, we presented Fr. Seraphim's relationship with the Bible and the Holy Fathers of the Church of Christ, so as for him to be considered a true follower of the Patriarchal Tradition. At the same time we approached Fr. Seraphim through his capacity as a spiritual father and presented his spiritual legacy. Finally, we dealt with the detailed presentation of the Greek-translated work of Fr. Seraphim with the main goal of depicting the spiritual state that prevailed in America and studying the issues that occupied the orthodox Christian community of America during the decades from 1960 to 1980. In conclusion, Fr. Seraphim wrote his books with the sole purpose of promoting Orthodox Christian teaching and affirming the timeless character of the Orthodox apostolic and patriarchal tradition in modern reality
BrainCog: A Spiking Neural Network based Brain-inspired Cognitive Intelligence Engine for Brain-inspired AI and Brain Simulation
Creators: name: Zeng, Yi
name: Zhao, Dongcheng
name: Zhao, Feifei
name: Shen, Guobin
name: Dong, Yiting
name: Lu, Enmeng
name: Zhang, Qian
name: Sun, Yinqian
name: Liang, Qian
name: Zhao, Yuxuan
name: Zhao, Zhuoya
name: Fang, Hongjian
name: Wang, Yuwei
name: Li, Yang
name: Liu, Xin
name: Du, Chengcheng
name: Kong, Qingqun
name: Ruan, Zizhe
name: Bi, Weida
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Spiking neural networks (SNNs) have attracted extensive attentions in Brain-inspired Artificial Intelligence and computational neuroscience. They can be used to simulate biological information processing in the brain at multiple scales. More importantly, SNNs serve as an appropriate level of abstraction to bring inspirations from brain and cognition to Artificial Intelligence. In this paper, we present the Brain-inspired Cognitive Intelligence Engine (BrainCog) for creating brain-inspired AI and brain simulation models. BrainCog incorporates different types of spiking neuron models, learning rules, brain areas, etc., as essential modules provided by the platform. Based on these easy-to-use modules, BrainCog supports various brain-inspired cognitive functions, including Perception and Learning, Decision Making, Knowledge Representation and Reasoning, Motor Control, and Social Cognition. These brain-inspired AI models have been effectively validated on various supervised, unsupervised, and reinforcement learning tasks, and they can be used to enable AI models to be with multiple brain-inspired cognitive functions. For brain simulation, BrainCog realizes the function simulation of decision-making, working memory, the structure simulation of the Neural Circuit, and whole brain structure simulation of Mouse brain, Macaque brain, and Human brain. An AI engine named BORN is developed based on BrainCog, and it demonstrates how the components of BrainCog can be integrated and used to build AI models and applications. To enable the scientific quest to decode the nature of biological intelligence and create AI, BrainCog aims to provide essential and easy-to-use building blocks, and infrastructural support to develop brain-inspired spiking neural network based AI, and to simulate the cognitive brains at multiple scales. The online repository of BrainCog can be found at https://github.com/braincog-x.
description: This paper was accepted by Patterns. The accepted version can be seen at https://www.cell.com/patterns/fulltext/S2666-3899(23)00144-7
Uniqueness Results for Weak Leray-Hopf Solutions of the Navier-Stokes System with Initial Values in Critical Spaces
Creators: name: Barker, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The main subject of this paper concerns the establishment of certain classes of initial data, which grant short time uniqueness of the associated weak Leray-Hopf solutions of the three dimensional Navier-Stokes equations. In particular, our main theorem that this holds for any solenodial initial data, with finite $L_2(\mathbb{R}^3)$ norm, that also belongs to to certain subsets of $VMO^{-1}(\mathbb{R}^3)$. As a corollary of this, we obtain the same conclusion for any solenodial $u_{0}$ belonging to $L_{2}(\mathbb{R}^3)\cap \mathbb{\dot{B}}^{-1+\frac{3}{p}}_{p,\infty}(\mathbb{R}^3)$, for any $3
description: 44 pages. Submitted. Corollary 1.4, Proposition 1.6 and Section 5 have been added. Additional remarks included in the introduction and at the end of section 4. Another subsection has been added to the 'Preliminaries'. Minor typos have also been corrected
Electronic quasiparticles in the quantum dimer model: density matrix renormalization group results
Creators: name: Lee, Junhyun
name: Sachdev, Subir
name: White, Steven R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a recently proposed quantum dimer model for the pseudogap metal state of the cuprates. The model contains bosonic dimers, representing a spin-singlet valence bond between a pair of electrons, and fermionic dimers, representing a quasiparticle with spin-$1/2$ and charge $+e$. By density matrix renormalization group calculations on a long but finite cylinder, we obtain the ground-state density distribution of the fermionic dimers for a number of different total densities. From the Friedel oscillations at open boundaries, we deduce that the Fermi surface consists of small hole pockets near $(π/2, π/2)$, and this feature persists up to a doping density of $1/16$. We also compute the entanglement entropy and find that it closely matches the sum of the entanglement entropies of a critical boson and a low density of free fermions. Our results support the existence of a fractionalized Fermi liquid in this model.
description: 16 pages, 7 figures
After the Fall: Late-Time Spectroscopy of Type IIP Supernovae
Creators: name: Silverman, Jeffrey M.
name: Pickett, Stephanie
name: Wheeler, J. Craig
name: Filippenko, Alexei V.
name: Vinko, Jozsef
name: Marion, G. H.
name: Cenko, S. Bradley
name: Chornock, Ryan
name: Clubb, Kelsey I.
name: Foley, Ryan J.
name: Graham, Melissa L.
name: Kelly, Patrick L.
name: Matheson, Thomas
name: Shields, Joseph C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Herein we analyse late-time (post-plateau; 103 < t < 1229 d) optical spectra of low-redshift (z < 0.016), hydrogen-rich Type IIP supernovae (SNe IIP). Our newly constructed sample contains 91 nebular spectra of 38 SNe IIP, which is the largest dataset of its kind ever analysed in one study, and many of the objects have complementary photometric data. We determined the peak and total luminosity, velocity of the peak, HWHM intensity, and profile shape for many emission lines. Temporal evolution of these values and various flux ratios are studied. We also investigate the correlations between these measurements and photometric observables, such as the peak and plateau absolute magnitudes and the late-time light curve decline rates in various optical bands. The strongest and most robust result we find is that the luminosities of all spectral features (except those of helium) tend to be higher in objects with steeper late-time V-band decline rates. A steep late-time V-band slope likely arises from less efficient trapping of gamma-rays and positrons, which could be caused by multidimensional effects such as clumping of the ejecta or asphericity of the explosion itself. Furthermore, if gamma-rays and positrons can escape more easily, then so can photons via the observed emission lines, leading to more luminous spectral features. It is also shown that SNe IIP with larger progenitor stars have ejecta with a more physically extended oxygen layer that is well-mixed with the hydrogen layer. In addition, we find a subset of objects with evidence for asymmetric Ni-56 ejection, likely bipolar in shape. We also compare our observations to theoretical late-time spectral models of SNe IIP from two separate groups and find moderate-to-good agreement with both sets of models. Our SNe IIP spectra are consistent with models of 12-15 M_Sun progenitor stars having relatively low metallicity (Z $\le$ 0.01).
description: resubmitted to MNRAS, 50 pages (29 of which are tables), 15 figures, 10 tables
Leaky-wave metasurfaces for integrated photonics
Creators: name: Huang, Heqing
name: Overvig, Adam C.
name: Xu, Yuan
name: Malek, Stephanie C.
name: Tsai, Cheng-Chia
name: Alù, Andrea
name: Yu, Nanfang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Metasurfaces have been rapidly advancing our command over the many degrees of freedom of light within compact, lightweight devices. However, so far, they have mostly been limited to manipulating light in free space. Grating couplers provide the opportunity of bridging far-field optical radiation and in-plane guided waves, and thus have become fundamental building blocks in photonic integrated circuits. However, their operation and degree of light control is much more limited than metasurfaces. Metasurfaces integrated on top of guided wave photonic systems have been explored to control the scattering of light off-chip with enhanced functionalities - namely, point-by-point manipulation of amplitude, phase or polarization. However, these efforts have so far been limited to controlling one or two optical degrees of freedom at best, and to device configurations much more complex compared to conventional grating couplers. Here, we introduce leaky-wave metasurfaces, which are based on symmetry-broken photonic crystal slabs that support quasi-bound states in the continuum. This platform has a compact form factor equivalent to the one of conventional grating couplers, but it provides full command over amplitude, phase and polarization (four optical degrees of freedom) across large apertures. We present experimental demonstrations of various functionalities for operation at wavelengths near 1.55 microns based on leaky-wave metasurfaces, including devices for phase and amplitude control at a fixed polarization state, and devices controlling all four optical degrees of freedom. Our results merge the fields of guided and free-space optics under the umbrella of metasurfaces, exploiting the hybrid nature of quasi-bound states in the continuum, for opportunities to advance in disruptive ways imaging, communications, augmented reality, quantum optics, LIDAR and integrated photonic systems.
description: 30 pages, 10 figures