cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluation of The Level of Service Rendered by Functioning Rural Water Supply Schemes: Case of Farta Woreda, Amhara Region, Ethiopia
Creators: name: Mitiku, Mebit
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Evaluation of the Level of Service Rendered by Functioning Rural Water Supply Schemes: Case of Farta woreda of Amhara region, Ethiopia Mebit Mitiku Addis Ababa University, 2013 All reports confirm that the rural water supply coverage of Ethiopia have been in strong upward trajectory since 1990. RWSEP/COWASH project has been implementing rural water supply schemes using CMP approach in Amhara region of Ethiopia since 2003. The project has achieved significant result on rural water supply schemes; functionality, implementation rate and community empowerment. CMP related researches confirm that the approach has achieved more than 98% of rural water supply scheme functionality. However, the level of service delivered by those functional water supply schemes had not been studied so far. Therefore, focusing on functioning rural water supply schemes in Farta woreda, the present study evaluated the service level using water quantity, quality, accessibility and reliability indicators, identify determinant factors affecting rural water supply schemes functionality and service level. Comparisons were made on the level of service delivered by those schemes implemented by NGO managed project approach against CMP. The study is both qualitative and quantitative in its design. Questionnaire, focused group discussion, key informant interview, observation, and document analysis are the main data gathering tools used in this study. The quantitative data collected were analyzed using SPSS (Statistical Package for Social Science) and presented through tables, graphs and charts where as the qualitative information were precisely narrated. To come up with valid conclusion rural water supply schemes were selected using representative sampling technique. The household survey found water quantity is the worst to meet the national target, only 1/4th of beneficiaries met the water quantity set by the UAP. Design problems, lack of community cohesion during construction, monitoring and supervision and environmental problems were found as important factors affecting water supply service level beneficiaries get from functioning rural water supply schemes. Key words: rural water supply, water quantity, water quality, accessibility, reliability, functionality and service level/quality
A Case of Pawe And Mandura Woredas, North Eastern Part of Benishangul Gumuz Regional State, Ethiopia
Creators: name: Mebrahtu, Meron
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: A recent development of the CMP approach, to implement rural water supply projects has been piloted in five woredas of the Metekel zone in Benishangul Gumuz regional state located at the Western part of Ethiopia. The assessment on the efficiency of the approach has been carried out in two woredas of the Northern part of Metekel Zone, namely, Mandura and Pawe woredas. First, it was checked if efforts have been put in to place and its applicability before evaluating accomplished results. In the second part, effectiveness of the approach was evaluated. In this research, the approach is supposed to effective if implementation is efficient, if the built schemes are going to sustain and if schemes are providing proper and adequate services. Accordingly, a rural water supply system is supposed to be sustainable up on achieving determinants of sustainability. In this research, these aspects are taken as factors that indicate effectiveness, which is a means to measure advancement of the approach towards meeting objectives. Major findings of the research were, elements of the approach were practiced as required except participating communities in technology option selection and post construction support. From the identified causes, it was recognized that there were no evidences found to articulate inappropriateness of any elements of the approach for the study areas. Finally, the effectiveness of the approach, evaluated using averaging the scores attributed to indicators showed above average value that is, 68.61% and 76.70% for Mandura and Pawe woredas respectively. This is interpreted as its application has shown promising result, which only requires some adjustment and efforts for its complete implementation and better output. And it appeared that more effort is needed to secure spare part availability and improve efficiency of community financing. And in general terms, other factors to be given due consideration include skill and awareness of community, especially in Mandura woreda where the socio economic situation is relatively poorer. Recommendations are made on how to deal with the gaps that has been identified for further accomplishments and stress on implementation procedures, which need focus for proper operation and maintenance so as to assure sustainability of schemes.
A feasibility study of ortho-positronium decays measurement with the J-PET scanner based on plastic scintillators
Creators: name: Kamińska, D.
name: Gajos, A.
name: Czerwiński, E.
name: Alfs, D.
name: Bednarski, T.
name: Białas, P.
name: Curceanu, C.
name: Dulski, K.
name: Głowacz, B.
name: Gupta-Sharma, N.
name: Gorgol, M.
name: Hiesmayr, B. C.
name: Jasińska, B.
name: Korcyl, G.
name: Kowalski, P.
name: Krzemień, W.
name: Krawczyk, N.
name: Kubicz, E.
name: Mohammed, M.
name: Niedźwiecki, Sz.
name: Pawlik-Niedźwiecka, M.
name: Raczyński, L.
name: Rudy, Z.
name: Silarski, M.
name: Wieczorek, A.
name: Wiślicki, W.
name: Zgardzińska, B.
name: Zieliński, M.
name: Moskal, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a study of the application of the Jagiellonian Positron Emission Tomograph (J-PET) for the registration of gamma quanta from decays of ortho-positronium (o-Ps). The J-PET is the first positron emission tomography scanner based on organic scintillators in contrast to all current PET scanners based on inorganic crystals. Monte Carlo simulations show that the J-PET as an axially symmetric and high acceptance scanner can be used as a multi-purpose detector well suited to pursue research including e.g. tests of discrete symmetries in decays of ortho-positronium in addition to the medical imaging. The gamma quanta originating from o-Ps decay interact in the plastic scintillators predominantly via the Compton effect, making the direct measurement of their energy impossible. Nevertheless, it is shown in this paper that the J-PET scanner will enable studies of the o-Ps$\to3γ$ decays with angular and energy resolution equal to $σ(θ) \approx 0.4^{\circ}$ and $σ(E) \approx 4.1$ keV, respectively. An order of magnitude shorter decay time of signals from plastic scintillators with respect to the inorganic crystals results not only in better timing properties crucial for the reduction of physical and instrumental background, but also suppresses significantly the pileups, thus enabling compensation of the lower efficiency of the plastic scintillators by performing measurements with higher positron source activities.
Hitchhiking triplet states to better understand organic semiconductors: Insights into their structure–function relationship gained by time-resolved EPR spectroscopy
Creators: name: Biskup, Till
Publisher: name: Zenodo
Year: 2023
Subjects: organic electronics
organic semiconductors
time-resolved EPR spectroscopy
structure-function relationship
triplet states
triplet pathways

description: Organic semiconductors play increasingly important roles in our daily lives. Insights into their structure–function relationship is crucial for the rational design of these materials. Here, we present three examples of how time-resolved EPR (TREPR) spectroscopy can contribute to our understanding of organic semiconductors investigating light-induced short-lived triplet states: (i) overall orientation and degree of ordering of polymer films on substrates, (ii) the direct optical excitation of triplet states from the singlet ground state, completing our picture of potential triplet pathways, and (iii) identifying the building block resembling the electronic structure of the corresponding polymer. Taken together, TREPR spectroscopy of triplet states provides highly relevant insight complementary to other methods, adding to our understanding of the structure–function relationship of organic semiconductors.
Interview with Nicki Ward
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: Ward, Nicki
Health care
Toronto
Trans Memorial
ID
Bill C-389
C-16
Activism
Graphic novel
Political Activism
Trans March
Police
C-279

description: Nicki talks about her work in organizing and implementing the first Toronto Trans March, as well as running for political office. Narrator Name: Nicki Ward. Interviewer Name: Evan Taylor. Pronouns: She.
All-strain based valley filter in graphene nanoribbons using snake states
Creators: name: Cavalcante, L. S.
name: Chaves, A.
name: da Costa, D. R.
name: Farias, G. A.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A pseudo-magnetic field kink can be realized along a graphene nanoribbon using strain engineering. Electron transport along this kink is governed by snake states that are characterized by a single propagation direction. Those pseudo-magnetic fields point towards opposite directions in the K and K' valleys, leading to valley polarized snake states. In a graphene nanoribbon with armchair edges this effect results in a valley filter that is based only on strain engineering. We discuss how to maximize this valley filtering by adjusting the parameters that define the stress distribution along the graphene ribbon.
description: 8 pages, 6 figures
Interview with barbara findlay
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: findlay, barbara
subject: Synthia Kavanagh
subject: Law
subject: FOS: Law
subject: Kimberly Nixon
subject: Human Rights
subject: Activism
subject: Lesbian
subject: Charter rights
subject: Anti-oppression
subject: Lesbian lawyer
subject: Legal rights

description: barbara talks about being a 'lesbian lawyer' and the various legal cases and cultural changes she has seen around queer and trans rights. Narrator Name: barbara findlay. Interviewer Name: Evan Taylor. Pronouns: She.
On flow instability over concave walls with reference to sedimentation
Creators: name: Nakagawa., Takeo
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.
Sound speed inversions of an ensemble of low-mass main-sequence stars
Creators: name: Buchele, Lynn
Publisher: name: Zenodo
Year: 2023

description: Even the best asteroseismic models of solar-like oscillators show significant differences from the observed oscillation frequencies. Structure inversions seek to use these frequency differences to infer the underlying structure differences. While used extensively to study the Sun, sound speed inversion results for other stars have so far been limited. Applying sound speed inversions to a broader set of stars allows us to probe stellar theory over a larger range of conditions, as well as look for overall patterns that may hint at deficits in our current understanding. To that end, we present inversion results for 15 main-sequence stars with radiative cores. We find several cases where the inversions reveal significant differences between the sound speed profile of the star and that of its model. Furthermore, we note a trend across the ensemble for the sound speed in the cores of our stellar models to be lower than those in actual stars. We examine whether changing the microphysics of our models improve them.
Engineering mathematics - Reflections on the dialectics of in and for
Creators: name: Peters, Jana
name: Hochmuth, Reinhard
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Engineering education
subject: Mathematical practices
subject: Anthropological Theory of the Didactic
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Poster presented at the conference.
Learning about the latitudinal distribution of starspots through the periodogram analysis of photometric data
Creators: name: Santos, A. R. G.
name: Cunha, M. S.
name: Avelino, P. P.
name: García, R. A.
name: Mathur, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Starspots are cooler and darker than the stellar surface. Therefore, the emitted flux of a star changes when spots are visible on its surface. The presence of spots together with the stellar rotation leads to a periodic modulation on the light curve. By studying that modulation one can then learn about the stellar rotation and also magnetic activity. Recently, Reinhold & Arlt (2015) proposed a method based on the analysis of the Lomb Scargle periodogram of the light curve to identify the sign of the differential rotation, i.e. whether the equator rotates faster than the poles or the opposite. We have been studying in detail the spots' impact on the light curve and on the resulting periodogram. We find that, under some conditions, the periodogram can actually provide an estimate of the true spot latitudes and/or the stellar inclination angle. Moreover, we find that the impact of the spot on the ratio between the heights of the second and first harmonics of the main peaks in the periodogram can be described by a single parameter, the visibility time of the spot. Finally, we also identify possible sources of false positives/negatives for the sign of the differential rotation.
description: 4 pages, 4 figures, proceedings of the Joint TASC2 - KASC9 Workshop - SPACEINN - HELAS8 Conference "Seismology of the Sun and the Distant Stars 2016: Using Today's Successes to Prepare the Future". To be published by the EPJ Web of Conferences
Anti-Mullerian hormone and cardiometabolic status: a systematic review
Creators: name: Fallahzadeh, Aida
name: Tehrani, Fahimeh Ramezeni
name: Rezaee, Malihe
name: Mahboobifard, Fatemeh
name: Amiri, Mina
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: To summarise the relationship between Anti-mullerian hormone (AMH) levels and cardiometabolic status in different populations. PubMed, Scopus, and Embase were searched for retrieving observational studies published up to February 2022 investigating the relationship between AMH level and cardiometabolic status. Of 3,643 studies retrieved from databases, a total of 37 observational studies were included in this review. The majority of the included studies revealed an inverse association between AMH and lipid profiles, including triglycerides (TG), total cholesterol (TC), low-density lipoprotein (LDL), and a positive correlation with high-density lipoprotein (HDL). While some studies have revealed a significant inverse association between AMH and glycemic parameters, including fasting plasma glucose (FPG), fasting insulin, and HOMA-IR, others found no such relationships. There is also an inconsistency among studies regarding the association of AMH with adiposity indices and blood pressure. Evidence indicates a significant association between AMH and some vascular markers, such as intima-media thickness and coronary artery calcification. Of 3 studies evaluating the relationship between AMH and cardiovascular events, two studies showed an inverse relationship between AMH levels and cardiovascular (CVD), whereas another study showed no significant association. The results of this systematic review suggest that serum AMH levels can be associated with CVD risk. This may provide new insight into the use of AMH concentrations as a predictive marker for assessing the risk of cardiovascular disease, although more well-design longitudinal studies are still necessary for this area. Future studies on this topic will hopefully provide an opportunity to run a meta-analysis; it will increase the persuasiveness of this interpretation.
Interview with Jamison Green
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Green, Jamison
subject: Legal rights
subject: Healthcare
subject: Standards of Care
subject: Law
subject: FOS: Law
subject: Insurance
subject: Communication
subject: Activism
subject: Community
subject: Advocacy
subject: Leadership
subject: WPATH

description: Jamison talks about his activism and work over many years - particularly focusing on his work with WPATH. Narrator Name: Jamison Green. Interviewer Name: Evan Taylor. Pronouns: He. Other Names or Pronouns: Charles Stuart Jamison Green; C.S. Jamison Green; "James".
Contribution of Addis Ababa Light Railway Project for Technology Transfer Process in Ethiopia
Creators: name: Belay, Jibat
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Technology has gained increasingly importance in achieving the desired development objectives of a nation. Technology transfer is a process of learning to understand, use and replicate, including the capacity to select and adapt to local conditions and integrate it with indigenous technologies for further achievement of technology development and innovation process. In order to minimize a continuous dependence on foreign finance and technology to respond the ever growing demand for efficient and modern means of transportation as well as to develop other basic infrastructures, it is imperative to work strongly on technology transfer process. If the production frontiers of the country is to expand by increasing labor and capital productivity; technological advancement has got a vital role to play and without use of technology the desired level of economic development could not be imagined. The underlying objective of the study is to assess the contribution of Addis Ababa light rail transit project for technology transfer process by using the Technology Transfer Life Cycle model and identified criteria in it since it is a newly introduced technology as city passenger transportation option and comprises of latest rolling stock with electric traction and train controlling system which cope up with current international standard gauge of rail way system. The research used secondary data like feasibility study, conceptual design, contract agreement, different reports and personnel data of the project archive and primary data like interview and questionnaire were utilized. Descriptive method was used to analyse the case since the study is new to Ethiopia and also for that the qualitative data all over the project cycle were utilized. The result of the analysis indicated that: most of the criteria that contributes to technology transfer process were not considered; technology supplier selection was biased to financial issues; there was no technology transfer agreement and plan; there is no systematic and tactical transfer implementation process to informaly achieve technology transfer; and according to data obtained from overall project implementation process knowledge and skills were generated like how to design, select, fix and operate rail way sysytems. The knowledge and skills obtained following the implementation of the project could be helpful and required to be engaged in work in a planned way with having a responsible nominees (may be firms or associations). Moreover, during implementation of public projects technology transfer process would be considerd by using Technology Transfer Life Cycle model which was used for the purpose of this study and the identified criteria can contribute to successful technology transfer process.
Lithium ion conducting composites
Creators: name: Nairn., Katherine Michelle
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.
Predictive biomarkers for colorectal cancer: a state-of-the-art systematic review
Creators: name: Maqbool, Moeez
name: Khan, Aden
name: Shahzad, Areej
name: Sarfraz, Zouina
name: Sarfraz, Azza
name: Aftab, Hinna
name: Jaan, Ali
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Cell Biology
Pharmacology
Biotechnology
Biological Sciences not elsewhere classified
Cancer

description: Colorectal cancer (CRC) poses a substantial health burden, with early detection paramount for improved prognosis. This study aims to evaluate potential CRC biomarkers and detection techniques. This systematic review, reported in adherence to PRISMA Statement 2020 guidelines, collates the latest research on potential biomarkers and detection/prognosis methods for CRC, spanning the last decade. Out of the 38 included studies, diverse biomarkers and detection methods emerged, with DNA methylation markers like SFRP2 and SDC2, microRNAs including miR-1290, miR-506, and miR-4316, and serum and plasma markers such as NTS levels and U2 snRNA fragments standing out. Methylated cfDNA and m5C methylation alteration in immune cells of the blood, along with circular RNA, showed promise as diagnostic markers. Meanwhile, techniques involving extracellular vesicles and lateral flow immunoassays exhibited potential for swift and effective CRC screening. Our state-of-the-art review identifies potential biomarkers, including SFRP2, SDC2, miR-1290, miR-506, miR-4316, and U2 snRNA fragments, with significant potential in enhancing CRC detection. However, comprehensive validation studies and a rigorous evaluation of clinical utility and cost-effectiveness remain necessary before integration into routine clinical practice. The findings emphasize the need for continued research into biomarkers and detection methods to improve patient outcomes. This state-of-the-art systematic review evaluated potential biomarkers for colorectal cancer (CRC) and synthesized 38 studies. Several biomarkers showed promise for CRC detection, including SFRP2 and SDC2 methylation biomarkers, chiroptical spectroscopy, m6A RNA levels, miR-1290, miR-506, miR-4316, NTS levels, and U2 snRNA fragments. EVs and LFIA were useful for screening.
Dryland communities managing climate shocks: Response
Creators: name: Action, Jameel Observatory For Food Security Early
Publisher: name: University of Edinburgh Global Academy of Agriculture and Food Security
Year: 2023
Subjects: drought
drylands
pastoralism

description: The messages were derived from interactions with elders and other people linving and working in the dryland areas of northern Kenya
description: This poster summarises some strategies used by people in East Africa's drylands to deal with climate and environmental shocks. It focuses on the emergency 'response' phase. It served as background to a 'climate activation' session at the Africa Climate Week in Nairobi on 8 September 2023.
Instantons in a Lagrangian model of turbulence
Creators: name: Grigorio, Leonardo S.
name: Bouchet, Freddy
name: Pereira, Rodrigo M.
name: Chevillard, Laurent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The role of instantons is investigated in the Lagrangian model for the velocity gradient evolution known as the Recent Fluid Deformation approximation. After recasting the model into the path-integral formalism, the probability distribution function is computed along with the most probable path in the weak noise limit through the saddle-point approximation. Evaluation of the instanton solution is implemented numerically by means of the iteratively Chernykh-Stepanov method. In the case of the longitudinal velocity gradient statistics, due to symmetry reasons, the number of degrees of freedom can be reduced to one, allowing the pdf to be evaluated analytically as well, thereby enabling a prediction of the scaling of the moments as a function of Reynolds number. It is also shown that the instanton solution lies on the Vieillefosse line concerning the RQ-plane. We illustrate how instantons can be unveiled in the stochastic dynamics performing a conditional statistics.
Dryland communities managing climate shocks: Recovery
Creators: name: Action, Jameel Observatory For Food Security Early
Publisher: name: University of Edinburgh Global Academy of Agriculture and Food Security
Year: 2023
Subjects: drought
drylands
pastoralism

description: The messages were derived from interactions with elders and other people linving and working in the dryland areas of northern Kenya
description: This poster summarises some strategies used by people in East Africa's drylands to deal with climate and environmental shocks. It focuses on the emergency 'response' phase. It served as background to a 'climate activation' session at the Africa Climate Week in Nairobi on 8 September 2023.
Determinants of oil seeds and pulse export performance in Ethiopia
Creators: name: G/Hiwot, Mengistu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The performance of oilseeds and pulse export in Ethiopia encountered a number of influencing factors that deter its performance. Among others Foreign price level, production/productivity, quality of the product, Infrastructure/rural feeder road availability and real effect exchange rate are supposed to be critical. The major objective of this study was to identify and analyze to what extent those major determinants affect the performance of oilseeds and pulse export in Ethiopia. Multiple leaner regressions are employed using SPSS version 20 software to examine the effects of the selected variables on the performance of export oilseeds and pulse. From 565, oilseeds and pulse exporters 130 have been taken residing Addis Ababa and Adama towns using simple random sampling (Carvalho's Sample Size Determination table)technique as primary sources of data. The findings implied that the foreign price level' production/productivity, quality of the product and real effect exchange rate were found to be positively and significantly affect export performance. Whereas, and Infrastructure/rural feeder road were found not to be as such influential factors to deter performance of oilseeds and pulse export in Ethiopia. Based on the findings of the study it were recommended that enhancing productivity, keeping quality of the product, making stable foreign exchange rate and improve the foreign price level areall important.
Innovative Heat Storage for Energy Efficient Buildings
Creators: name: Abohamzeh, Elham
name: Frey, Georg
Publisher: name: Zenodo
Year: 2023

description: Sorption heat storage has been found to have great potential for short-term (daily) and long-term (seasonal) storage applications and has been proposed as a promising approach to minimize the temporal mismatch between solar energy supply and space heating demand. The benefit of this technology is long-term energy storage with negligible heat loss and high energy density when compared to other thermal energy storage techniques. Due to the reversible process of desorption and adsorption, these systems allow solar heat to be stored from summer for use in winter, enabling the energy to be supplied to residential buildings with a significant proportion of solar energy. This capability closes the time gap between energy generation and consumption. The aim of this project is to develop a sorption heat storage system and integrate it with a solar thermal collector and heat pump for the energy supply of residential buildings.
Intermodulation in Nonlinear SQUID Metamaterials: Experiment and Theory
Creators: name: Zhang, Daimeng
name: Trepanier, Melissa
name: Antonsen, Thomas
name: Ott, Edward
name: Anlage, Steven M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The response of nonlinear metamaterials and superconducting electronics to two-tone excitation is critical for understanding their use as low-noise amplifiers and tunable filters. A new setting for such studies is that of metamaterials made of radio frequency superconducting quantum interference devices (rf-SQUIDs). The two-tone response of self-resonant rf-SQUID meta-atoms and metamaterials is studied here via intermodulation (IM) measurement over a broad range of tone frequencies and tone powers. A sharp onset followed by a surprising strongly suppressed IM region near the resonance is observed. Using a two time scale analysis technique, we present an analytical theory that successfully explains our experimental observations. The theory predicts that the IM can be manipulated with tone power, center frequency, frequency difference between the two tones, and temperature. This quantitative understanding potentially allows for the design of rf-SQUID metamaterials with either very low or very high IM response.
description: 11 pages, 6 figures
Interview with Kimberly Nixon
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2021
Subjects: subject: Nixon, Kimberly
subject: Anti-oppression
subject: Activism
subject: Vancouver
subject: Trans woman
subject: Human Rights
subject: Legal rights
subject: Law
subject: FOS: Law
subject: Female
subject: Rape Relief
subject: Woman

description: Kimberly talks about her life and work history as a pilot and about her human rights legal cases that she pursued for over 15 years. Narrator Name: Kimberly Nixon. Interviewer Name: Evan Taylor. Pronouns: She.
Dark Matter Results from First 98.7-day Data of PandaX-II Experiment
Creators: name: II Collaboration
name: Tan, Andi
name: Xiao, Mengjiao
name: Cui, Xiangyi
name: Chen, Xun
name: Chen, Yunhua
name: Fang, Deqing
name: Fu, Changbo
name: Giboni, Karl
name: Giuliani, Franco
name: Gong, Haowei
name: Hu, Shouyang
name: Huang, Xingtao
name: Ji, Xiangdong
name: Ju, Yonglin
name: Lei, Siao
name: Li, Shaoli
name: Li, Xiaomei
name: Li, Xinglong
name: Liang, Hao
name: Lin, Qing
name: Liu, Huaxuan
name: Liu, Jianglai
name: Lorenzon, Wolfgang
name: Ma, Yugang
name: Mao, Yajun
name: Ni, Kaixuan
name: Ren, Xiangxiang
name: Schubnell, Michael
name: Shen, Manbin
name: Shi, Fang
name: Wang, Hongwei
name: Wang, Jiming
name: Wang, Meng
name: Wang, Qiuhong
name: Wang, Siguang
name: Wang, Xuming
name: Wang, Zhou
name: Wu, Shiyong
name: Xiao, Xiang
name: Xie, Pengwei
name: Yan, Binbin
name: Yang, Yong
name: Yue, Jianfeng
name: Zeng, Xionghui
name: Zhang, Hongguang
name: Zhang, Hua
name: Zhang, Huanqiao
name: Zhang, Tao
name: Zhao, Li
name: Zhou, Jing
name: Zhou, Ning
name: Zhou, Xiaopeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report the WIMP dark matter search results using the first physics-run data of the PandaX-II 500 kg liquid xenon dual-phase time-projection chamber, operating at the China JinPing Underground Laboratory. No dark matter candidate is identified above background. In combination with the data set during the commissioning run, with a total exposure of 3.3$\times10^4$ kg-day,the most stringent limit to the spin-independent interaction between the ordinary and WIMP dark matter is set for a range of dark matter mass between 3.5 and 1000 GeV/c$^2$. The best upper limit on the scattering cross section is found $2.5\times 10^{-46}$ cm$^2$ for the WIMP mass 40 GeV/c$^2$ at 90% confidence level.
description: version accepted by PRL, 12 pages, 5+11 figures (including supplementary materials), 4 tables
Dryland communities managing climate shocks: Resilience
Creators: name: Action, Jameel Observatory For Food Security Early
Publisher: name: University of Edinburgh Global Academy of Agriculture and Food Security
Year: 2023
Subjects: drought
drylands
pastoralism

description: The messages were derived from interactions with elders and other people linving and working in the dryland areas of northern Kenya
description: This poster summarises some strategies used by people in East Africa's drylands to deal with climate and environmental shocks. It focuses on the emergency 'resilience' phase. It served as background to a 'climate activation' session at the Africa Climate Week in Nairobi on 8 September 2023.
Experimental and numerical investigation of the unsaturated hydraulic behaviour of geotextiles
Creators: name: Nahlawi., Hani
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.
Silicon-containing catalysts and reagents for the direct amidation of carboxylic acids
Creators: name: Rowley, Ben
Publisher: name: Imperial College London
Year: 2017

description: The work described in this thesis addresses the problems associated with direct amide synthesis using silicon compounds as catalysts or reagents. This thesis has been separated into five major parts and includes appendices, catalogued experimental procedures and spectroscopic data. Initial investigations concerned the study and development of molecular silanols as novel direct amidation catalysts. Reactivity screening of architecturally varied silanols against the identified model reaction between phenylacetic acid and 4-methylbenzylamine in refluxing toluene revealed Ph3SiOH as the most active silanol examined compared to the background amide conversion (25 vs 11% respectively). Synthesis of conceivable intermediates, triphenylsilyl 2-phenylacetate and N-(4-methylbenzyl)-triphenylsilanamine was conducted, and their implication during catalysis was assessed, revealing a plausible catalytic pathway via the aminolysis of catalytically generated silylesters. Further synthesis and assessment of a variety of electronically diverse tri-aryl silanols was conducted, revealing a substituent-reactivity relationship in which more electron-deficient silanols provided greater model amide conversion in this system, although, increased silanol decomposition was accompanied by increased silanol electrophilicity, measured by DFT calculations and Hammett substituent constants. This discovery led to the application of the relatively inexpensive and commercially available tetramethylorthosilicate (Si(OMe)4), as an overlooked direct amidation coupling reagent, providing a variety of amides in excellent to quantitative isolated yields and high purity upon simple work up. The methodology was also successfully applied to the synthesis of the antidepressant, moclobemide and the viable anti-arrhythmic procainamide precursor, N-(2-(diethylamino)ethyl)-4-nitrobenzamide. Furthermore, optimisation of this method, utilising 4Ǻ molecular sieves, allowed the generally difficult coupling of benzoic acids and anilines in quantitative yields within 24 h.
Growth of EuO single crystals at reduced temperatures
Creators: name: Ramirez, Daniel C.
name: Besara, Tiglet
name: Whalen, Jeffrey B.
name: Siegrist, Theo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Single crystals of (Eu$_{1-x}$Ba$_x$)O have been grown in a molten barium-magnesium metal flux at temperatures up to 1000°C, producing single crystals of (Eu$_{1-x}$Ba$_x$)O with barium doping levels ranging from $x=0.03$ to $x=0.25$. Magnetic measurements show that the ferromagnetic Curie temperature T$_C$ correlates with the Ba doping levels, and a modified Heisenberg model was used to describe the stoichiometry dependence of T$_C$. Extrapolation of the results indicates that a sample with Ba concentration of $x=0.72$ should have a T$_C$ of 0 K, potentially producing a quantum phase transition in this material.
description: 5 figures
Structural Design and Analysis of Passenger Rail Vehicle Car Body
Creators: name: Endale, Yesuf
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: The purpose of the study is to design and analyze a rail vehicle car body structure that solves the issue of strength & comfort. Modern rail vehicles passenger Car bodies are designed as lightweight structures with the aim to minimize mass and thus operational energy demand. At the same time the vehicle car body shall be designed as stiff as possible to withstand exceptional loads. To achieve these, both rigid and flexible body vibration frequencies shall be filtered by appropriate design of suspension system. The materials used in the design and construction of passenger rail vehicle car body structure is structural steel( st 36) that has greater resilience to different production methods and available in local market compared to other materials used for the same application. The result shows the selected sections for the different components of the rail vehicle are capable of carrying the intended purpose. However, some sections are critically loaded beyond the allowable yield stress. These sections have to be reinforced to make them stiff enough that they bear the load. In addition, the first six natural frequencies are calculated using ANSYS design and modeling software. The frequency is compared to the sensitivity range of human being in vertical ride comfort. The design and analysis is applicable to Rail Way Corporation & local manufacturer's that has plan to substitute import by local manufacturing of passenger rail vehicle car bodies
Upgrading Biogas Produced from Biogas Pilot Plant through Absorption
Creators: name: Assefa, Gizachew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Biofuels derived from biomass are considered as good alternative to petroleum fuels. Biogas is produced by anaerobic digestion of various organic substances such as food waste, agricultural waste, municipal solid waste (MSW), cow dung (CD) etc., which offers low cost and low emissions than any other secondary fuels. It can be a supplemented to liquefied petroleum gas (LPG) and compressed natural gas (CNG), if it is used in compressed form in cylinders. Ethiopia is among the developing countries where biogas upgrading system doesn't include in biogas production plants. The use of unrefined biogas has several social and environmental impacts such as GHG emissions, the incombustible part of biogas, CO2, lowers its calorific value, the presence of hydrogen sulphide forms sulphuric acid with water, which is highly corrosive, rendering the biogas unusable. Furthermore, the use of biogas has remained near to the generating plants and compression requirement is high. This paper examines the effect of raw biogas flow rate, water flow rate and water head on methane enrichment of biogas; using water scrubbing which is based on the physical effect of dissolving gases in liquids. In a scrubber, CO2 as well as the H2S, dissolves into the water while CH4 does not because of their difference in solubility. This makes it a very simple process. There is a lot of potentials in terms of increased energy per unit volume, wider application and ease of handling if biogas is upgraded to >95% CH4. Raw biogas methane content in the studied pilot biogas plant ranged from 45 % to 56 %, carbon dioxide from 39 % to 50 % and trace amount of hydrogen sulphide. Oxygen content in all the measured raw biogas was < 2%. A counter-current absorption process upgraded the pilot plant gas near to 80 % methane content. The carbon dioxide content of the product gas ranged from 17 to 35 %. Hydrogen sulphide was removed from the raw pilot plant gas with over 90 % efficiency with the upgrading system. Removal of contaminants (CO2 and H2S) from biogas through upgrading was conducted at a water head of (80, 110 and 140 cm), water flow rate of (8, 16 and 25 l/min) and gas flow rate of (1, 1.5 and 2 l/min). In all cases, the increase in water head from 80 to 140 cm and the increase in water and gas flow rates increased the methane concentration. The highest methane content (80 %) was obtained at the highest water head (140 cm) and water flow (25 l/min) and when the gas flow was maintained at 1.5 l/min. The resulted CH4 enriched product gas implies that carbon dioxide and hydrogen sulphide gases have been trapped in the absorbent water with higher removal efficiency (60 and >90 % respectively). Keywords: biogas; methane; upgrading: Anaerobic digestion: enrichment: biofuel
A perturbative approach to the confinement-deconfinement phase transition
Creators: name: Reinosa, Urko
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We summarize recent progress in describing the confinement-deconfinement transition from a novel perturbative approach.
description: 6 pages, 5 figures, to appear in the proceedings of the QCD@Work 2016 Workshop
Assessment of Degradation and Performance Improvement of Railway Ballast with Geosynthetics - A Case Study of National Railway Network
Creators: name: Kedir, Abdu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: The increasing demands of higher axle loads, speeds and usage means understanding the ballast behavior and its interaction with the infrastructure remains a critical element to the design and successful operation of ballasted railway track, Therefore it is important to study the degradation of ballast to increase and predict ballast life on the track, reduce waste track, keep good track quality and minimize the frequency and cost of ballast replacement. The primary objectives of this thesis are to identify the major source of ballast degradation, minimizing the ballast degradation, improve the performance of the ballast as well as the track, to avoid repeated maintenance by minimizing the ballast degradation and finally minimizing ballast degradation of railway line mainly using geosynthetics materials namely Geocells and Geogrids. Literatures have been thoroughly reviewed and the preliminary analysis were performed prior to the Finite Element Method (FEM) analysis with the software ANSYS. The analysis is comprised of typical unreinforced and geocell and geogrid reinforced ballast section of National Railway Network; track settlement, subgrade stress and subgrade stress - strain have been observed. Assessments have been made and promising results are obtained. The result of the finite element analysis (FEA) shows that ballast embankment reinforced with geocell have reduced the track settlement and the subgrade stress beside this the intrusion of geocell in the ballast provides a more linear stress-strain distribution. Ballast embankment reinforced with geogrid was also analyzed; the ballast was reinforced at the ballast-subballast interface and within the ballast. The reinforcement at the ballast-subballast interface have reduced the track settlement and the subgrade stress much better than geogrid reinforcement within the ballast and in both cases a linear stress-strain distribution is obtained. Finally conclusions were made that show geocell and geogrid improved the performance of weak degraded ballast and fresh good quality ballast. Also using reinforced ballast embankment on soft subgrade reduced and distributes stress more evenly as well as reduced the track settlement.
Alloying of polyethylene and polytetrafluoroethylene : a physical study
Creators: name: Nagarajan., Srinivasan
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.
Finiteness conditions for the non-abelian tensor product of groups
Creators: name: Bastos, Raimundo
name: Nakaoka, Irene N.
name: Rocco, Noraí R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E25, 20F50, 20J06

description: Let $G$, $H$ be groups. We denote by $η(G,H)$ a certain extension of the non-abelian tensor product $G \otimes H$ by $G \times H$. We prove that if $G$ and $H$ are groups that act compatibly on each other and such that the set of all tensors $T_{\otimes}(G,H)=\{g\otimes h \, : \, g \in G, \, h\in H\}$ is finite, then the non-abelian tensor product $G \otimes H$ is finite. In the opposite direction we examine certain finiteness conditions of $G$ in terms of similar conditions for the tensor square $G \otimes G$.
description: The content of this paper improves and extends the main results of arXiv:1603.07003 [math.GR]
Assessment of Photo-Fenton Process for The Removal Of Pesticide from Wastewater
Creators: name: Bikila, Firdissa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The main purpose of this work was to study assessment of photo-Fenton process (Fe /H2O2/UV) for the removal of pesticide from wastewater. Synthetic wastewater from 2,4Dichlorophenoxyacetic was prepared and characterized for its organic matter content and also it PH and turbidity which has a significant effect on the degradation process. Box-Benkhen design response-surface methodology was developed to optimize photo-Fenton degradation of 2,4Dichlorophenoxyacetic in which UV light radiation was used as a source of light. The three variables considered in Box-Benkhen design model included initial 2,4-Dichlorophenoxyacetic [2,4-D], hydrogen peroxide [H2O2] and Ferrous iron [Fe 2+ ] concentrations. The removal efficiency was expressed in terms of total organic carbon (TOC) and chemical oxygen demand (COD) percentage removal. The optimum values of 94.7 mg/L 2,4-D, 22.78 mg/L Fe 2+ , 156.4 mg/L H2O2 were obtained by optimizing the variables using Box-Benkhen design that the data was analyzed after carrying out each experiment for 2 hours at room temperature. The photo-Fenton process led to 85% TOC removal and 96% COD removal thereby showing the effectiveness of using photo-Fenton process for the removal of pesticide from wastewater.