cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vortex Crystals with Chiral Stripes in Itinerant Magnets
Creators: name: Ozawa, Ryo
name: Hayami, Satoru
name: Barros, Kipton
name: Chern, Gia-Wei
name: Motome, Yukitoshi
name: Batista, Cristian D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study noncoplanar magnetic ordering in frustrated itinerant magnets. For a family of Kondo square lattice models with classical local moments, we find that a double-$Q$ noncoplanar vortex crystal has lower energy than the single-$Q$ helical order expected from the Ruderman-Kittel-Kasuya-Yosida interaction whenever the lattice symmetry dictates four global maxima in the bare magnetic susceptibility. By expanding in the small Kondo exchange and the degree of noncoplanarity, we demonstrate that this noncoplanar state arises from a Fermi surface instability, and it is generic for a wide range of electron filling fractions whenever the two ordering wave vectors connect independent sections of the Fermi surface.
description: 5 pages, 4 figures
Geological considerations in disposal of solid municipal wastes in Texas
Creators: name: Flawn, Peter Tyrell
name: Leach, Carolyn H.
name: Turk, L. Jan
Publisher: name: University of Texas at Austin. Bureau of Economic Geology
Year: 1970
Subjects: Refuse and refuse disposal -- Texas
Sanitary landfills -- Texas

description: Bureau Publication GC7002 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/398-gc7002.html
description: In the United States the average citizen produces 6 to 8 pounds of solid wastes per day--this includes his personal contribution plus his pro-rata share of industrial and agricultural wastes. A city of 200,000 to 300,000 people is faced with collecting, transporting, and disposing of about 400 tons to 500 tons of solid wastes every day. This is the amount produced by the residents and small businesses--it does not include the wastes from big industrial operations. Costs of solid waste disposal range from $10 to $30 per ton depending on local labor costs, the distance the material must be transported, and the costs of acquisition and operation of disposal sites. In Texas, cost of landfill operations alone averages $1.10 per ton (Gazda and Malina, 1969, p. 23). The practice of open burning of wastes at the disposal site has been discontinued in many areas because of air pollution control legislation. This increases the volume of material that must be buried. In some areas the volume of solid wastes is reduced by high-temperature incinerators prior to ultimate disposal, in others controlled burning of wastes produces by-product steam.
MS Gr. class. c. 6 1251
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 13 col. 8 sup. Epicurus, De natura 28
Drawing by Carlo Orazi
It isn’t just Mom: Gendered provision of family and home responsibilities among emerging adults during COVID-19
Creators: name: Jensen, Todd
name: Weinstein, Mariani
name: Navarro, Jessica L.
name: Brown, Morgan
name: Jensen, Michaeline
Publisher: name: Frontiers
Year: 2024

description: Media and research reports have highlighted the disproportionate burden of home and family responsibilities shouldered by women and mothers due to COVID-19-related school/childcare shutdowns. This cross-sectional study extends this line of inquiry to emerging adults. Our study of 329 diverse emerging adults suggests that young women took on more home/family responsibilities than young men amidst the pandemic, and that these duties were associated with symptoms of depression. However, results also indicate that emerging adults who reported greater home/family responsibilities amidst the pandemic also experienced more quality family time, suggesting that pandemic-related challenges may have also been accompanied by opportunities for family connection. Contrary to previous research that has shown home/family responsibilities to be concentrated by SES and race/ethnicity, we found that participants uniformly endorsed COVID-19-related impacts on home/family responsibilities across these demographic distinctions. This could reflect the ubiquity of COVID-19's impact; across race/ethnicity and class-but differentially by gender-young adults faced significant challenges in taking on new home/family roles.
دور الصناعات الصغرى والمتوسطة في النشاط الاقتصادي ببلدية درنة - دراسة في الجغرافيا الاقتصادية
Creators: name: ALNAAS, JAMAL
Publisher: name: figshare
Year: 2023
Subjects: Earth system sciences
Other earth sciences not elsewhere classified

description: تناولت الدّراسة تطور النشاط الصناعي في إقليم درنة منذ بداية القرن الماضي ، وتبين أن النشاط الصناعي في البلدية توقف في بعض الأنشطة الصناعية، وهي التي تقع ضمن فئة الصناعات الكبيرة، وذلك بسبب نقص المواد الخام والسيولة المالية والأيدي العاملة بالإضافة إلى ضعف البنية التحتية ، وتبين كذلك أن النشاط الغالب والمستمر في منطقة الدراسة هو نشاط الصناعات الصغرى ( كالصناعات الغذائية أو الخشبية أو المعدنية والهندسية ، ومواد البناء .... وغيرها ). كما تتوفر في المنطقة العديد من الموارد المحلية والتي في حال استغلالها سيكون لها دور في زيادة النمو الاقتصادي والذي يؤدي إلى استيعاب العاطلين عن العمل، ولقد اوضحت الدراسة إنه يتوفر عدد 527 نشاط تجاري مسجل وهو لا يعمل منه سوى 325 نشاط صناعي ،والتي تستوعب حوالي 3256 عامل محلي وعدد 208 وافد ،فيما توزعت الأنشطة على عدد ثماني فئات صناعية كانت الأغلبية للصناعات الغذائية . واتضح كذلك أن تركز الصناعة وتوطنها فقد كان في كل من محلة الساحل الشرقي " بمدينة درنة " ومنطقة الفتائح .
Parenting Stress and Its Impact on Parental and Child Functioning During the COVID-19 Pandemic: A Meta-Analytical Review
Creators: name: Netto, Nicholas
name: Lanier, Paul
name: Chung, Gerard
name: Tilley, Jacqueline Lee
name: Chan, Aloysius
Publisher: name: American Psychological Association (APA)
Year: 2024

description: Amidst the COVID-19 pandemic, prolonged periods of physical and social isolation imposed significant challenges on parents and children, disrupting their socioeconomic stability and psychological well-being. This study examined the effects of parenting stress on aspects of parents’ and children’s functioning during the COVID-19 pandemic. A comprehensive search of studies from eight electronic sources, including the World Health Organization’s COVID-19 database, yielded 42 studies focusing on the associations between parenting stress, as measured by standardized scales, and child and parental outcomes. Multilevel random-effect models were used to analyze weighted effect sizes. Our findings revealed medium-to-large effect sizes (ranging from r = .29 to .55) in the associations between parenting stress and (a) externalizing child behaviors (r = .41), (b) internalizing child behaviors (r = .48), (c) negative parents’ behavioral engagements (r = .29), (d) parents’ mental health (r = .46), and (e) poor parent–child relationship quality (r = .55). These results underscore the significance of addressing parenting stress during a pandemic. Practice implications suggest that governmental or community support, along with tangible assistance, can alleviate parenting stress and positively impact the well-being and functioning of parents and children in the pandemic and postpandemic era, especially in light of the current global mental health crisis. Furthermore, considering the influence of parenting stress on treatment engagement and motivation, family- or parent-oriented interventions that address parenting stress can be more effective at reducing the negative consequences of a pandemic on children and their parents.
Sections of the regular simplex - Volume formulas and estimates
Creators: name: Dirksen, Hauke
Publisher: name: arXiv
Year: 2015
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52A20, 52A38, 52A40

description: We state a general formula to compute the volume of the intersection of the regular $n$-simplex with some $k$-dimensional subspace. It is known that for central hyperplanes the one through the centroid containing $n-1$ vertices gives the maximal volume. We show that, for fixed small distances of a hyperplane to the centroid, the hyperplane containing $n-1$ vertices is still volume maximizing. The proof also yields a new and short argument for the result on central sections. With the same technique we give a partial result for the minimal central hyperplane section. Finally, we obtain a bound for $k$-dimensional sections.
description: Revised version: new results added (Sections 4 and 5); improvements and corrections in the first sections
MS Gr. class. c. 6 1252
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 13 col. 9 sup. Epicurus, De natura 28
Drawing by Carlo Orazi
Examining the effectiveness of unmanned aerial systems for measuring delphinid behavior
Creators: name: McPherson, Liah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Studying the behavior of small cetaceans can inform the understanding of their habitat use, social structure, and health, providing insight necessary for the conservation and management of these animals and their environment. Complications with such research arise due to the limited effectiveness of vessel-based observation. In particular, visually observing cetaceans in a manner which allows researchers to accurately track the behavior of individuals within a group is challenging. We address this issue by assessing the effectiveness of small unmanned aerial systems (UAS) for measuring behavior. In collaboration with the Wild Dolphin Project, we conducted 6 UAS flights during 2018 to record preliminary data of traveling and socializing Atlantic spotted dolphins (Stenella frontalis) in the Northern Bahamas. Dolphins displayed no indication of disturbance by the UAS. During video review we documented 19 different behaviors and identified many individual dolphins, suggesting that UAS will be effective in future studies that require acute awareness of individuals’ behavior. UAS has the potential to advance the study of small cetacean behavior, allowing more detailed observation of individuals in group settings. We anticipate UAS technology becoming more prevalent in both our continuing research, and that of other marine mammal scientists.
The Petrovski\uı criterion and barriers for degenerate and singular p-parabolic equations
Creators: name: Björn, Anders
name: Björn, Jana
name: Gianazza, Ugo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary: 35K61, Secondary: 35B65, 35K20, 35K65, 35K67, 35K92

description: In this paper we obtain sharp Petrovskii criteria for the p-parabolic equation, both in the degenerate case p>2 and the singular case 1
description: 16 pages
Potential geothermal resources of Texas
Creators: name: Dorfman, Myron
name: Kehle, Ralph O.
Publisher: name: University of Texas at Austin. Bureau of Economic Geology
Year: 1974
Subjects: Geothermal resources -- Texas

description: Bureau Publication GC7404 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/410-gc7404.html
description: Geothermal energy is rapidly becoming recognized, both in the United States and abroad, as a viable source of energy which can supplement fossil fuels for electric power generation. Exploration and development of geothermal reservoirs is intensifying in the western United States and Mexico, and will continue to expand as petroleum supplies diminish and costs increase. Although geothermal energy is commonly perceived as a new and exotic energy source, it is neither. Steam has been used for electric power generation since 1904 in Larderello, Italy, and geothermal waters have been used for space heating and agricultural purposes in other parts of the world since 1890. Geothermal power generation began in the United States in 1960 at the Geysers, California, and new fields are under development in the Salton trough of southern California. Herein we will attempt to answer some of the basic questions about geothermal energy: what it is, how deposits are formed, and where these deposits are located. Special emphasis is placed on the potential geothermal resources of the Texas Gulf Coast and Trans-Pecos Texas. This discussion should provide the reader with an appreciation for both the problems and advantages of this unfamiliar form of energy as well as the potential it holds for supplying Texas with a portion of its future energy needs.
High-risk subgroups were not identified to benefit from thromboprophylaxis after hospitalization for COVID-19
Creators: name: Kreuziger, Lisa Baumann
name: Miller, Peter J.
name: Wang, Tracy Y.
name: Wahed, Abdus S.
name: ACTIV-4c Investigators
name: Wahid, Lana
name: Kwon, Taeim
name: Enders, Kimberly
name: Kasthuri, Raj S.
name: Ortel, Thomas L.
name: Anstrom, Kevin J.
Publisher: name: Elsevier
Year: 2024

description: Background: The Accelerating COVID-19 Therapeutic Interventions and Vaccines-4c (ACTIV-4c) trial investigated prophylactic apixaban for 30 days following hospitalization for COVID-19. The overall incidence of early postdischarge death or thromboembolism was low, and the trial was closed early.
Objectives: To identify a high-risk patient population who might benefit from postdischarge thromboprophylaxis through subgroup analyses stratified by age, race/ethnicity, obesity, D-dimer elevation, World Health Organization score, and modified International Medical Prevention Registry on Venous Thromboembolism score on 30-day composite outcome of all-cause death, arterial thromboembolism (ATE), and venous thromboembolism (VTE).
Methods: Cumulative incidences of all-cause death, ATE, and VTE within 30 days were described for each subgroup. Time to death, ATE, or VTE by 30 days was analyzed using Cox proportional hazard models with interaction testing for each subgroup.
Results: Among 1217 patients randomized to apixaban or placebo group, 32% were >60 years old. Modified International Medical Prevention Registry on Venous Thromboembolism score was ≥4 in 2% and 2 or 3 with an elevated D-dimer in an additional 9% of participants. The overall incidence of the primary endpoint was 2.13% in the apixaban group and 2.31% in the placebo group. At day 30, similar rates of the primary endpoint occurred within subgroups, except for participants aged >60 years. No benefit of thromboprophylaxis was seen in any subgroup.
Conclusion: The combined incidence of 30-day death, ATE, and VTE was low in patients who survived COVID-19 hospitalization, except in patients over age 60 years. Due to the limited number of events, the findings remain inconclusive; nonetheless, the study did not identify a high-risk subgroup that would derive benefits from extended thromboprophylaxis.
Zeeman-Doppler imaging of active young solar type stars
Creators: name: Hackman, Thomas
name: Lehtinen, Jyri
name: Rosén, Lisa
name: Kochukhov, Oleg
name: Käpylä, Maarit J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: By studying young magnetically active late-type stars, i.e. analogues to the young Sun, one can draw conclusions on the evolution of the solar dynamo. We determine the topology of the surface magnetic field and study the relation between the magnetic field and cool photospheric spots in three young late-type stars. High-resolution spectropolarimetry of the targets were obtained with the HARPSpol instrument mounted at the ESO 3.6 m telescope. The signal-to-noise ratio of the Stokes IV measurements were boosted by combining the signal from a large number of spectroscopic absorption lines through the least squares deconvolution technique. Surface brightness and magnetic field maps were calculated using the Zeeman-Doppler imaging technique. All the three targets show clear signs of both magnetic fields and cool spots. Only one of the targets, namely V1358 Ori, shows evidence of the dominance of non-axisymmetric modes. In two of the targets, the poloidal field is significantly stronger than the toroidal one, indicative of an $α^2$-type of a dynamo, in which convective turbulence effects dominate over the weak differential rotation. In two of the cases there is a slight anti-correlation between the cool spots and the strength of the radial magnetic field. However, even in these cases the correlation is much weaker than in the case of sunspots. The weak correlation between the measured radial magnetic field and cool spots may indicate a more complex magnetic field structure in the spots or spot groups involving mixed magnetic polarities. Comparison with a previously published magnetic field map shows that on one of the stars, HD 29615, the underlying magnetic field has changed its polarity between 2009 and 2013.
description: 7 pages, 6 figures, accepted for publication in Astronomy and Astrophysics
An Evaluation of the Samaritan Health Center: Perspective on Patient Satisfaction and Emergency Room Deterrence
Creators: name: Smith, Hannah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: An example of a free clinic that provides primary care to uninsured patients in a specific community is Samaritan Health Center (SHC) in Durham, North Carolina. SHC is located in two Durham neighborhoods. The goal of the clinic is to eliminate Durham’s health disparities and
provide quality care to all patients at no cost. In order to be a patient at SHC, you must live in Durham County, have no insurance, and make an income of 200% below the federal poverty line. The Samaritan Health Center aims to provide quality and effective care to all of their patients.
This evaluation stems from the desires of the executive directors to analyze the overall patient satisfaction with a focus of staff attention to patients, understanding of diagnosis and medicine provided, and the quality of medical care at SHC. The evaluation will also assess the degree to which the clinic deters patients from using the ER for routine primary care. The evaluation will address the following questions:
1. How satisfied are the patients at SHC with the quality of care they are receiving?
2. To what degree does SHC deter patients from using the emergency room for routine primary care?
FIDEchess
Creators: name: Stafford, Tom
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: chess
subject: sex differences
subject: skill

description: Analysis of FIDE chess ratings, games and players using the "Sonas 92" data set - game data for all FIDE rated chess players and all tournament games played in a 92 month period (2008-2015)
الثروات المحلية ودورها في عملية تنمية المشروعات الصغرى والمتوسطة في برقة
Creators: name: ALNAAS, JAMAL
Publisher: name: figshare
Year: 2023
Subjects: Earth system sciences
Other earth sciences not elsewhere classified

description: الثروات المحلية ودورها في عملية تنمية المشروعات الصغرى والمتوسطة في برقة
AI4SoilHealth project: accelerating collection and use of soil health information using AI technology to support the Soil Deal for Europe and EU Soil Observatory
Creators: name: Wheeler, Ichsani
Publisher: name: Zenodo
Year: 2023
Subjects: open data
AI
soil health
soil monitoring
data cube

description: The objective of AI4SoilHealth is to co-design, create and maintain an open access European-wide digital infrastructure, compiled using state-of-the-art Artificial Intelligence (AI) methods combined with new and deep soil health understanding and measures. The AI-based data infrastructure would function as a Digital Twin to the real-World biophysical system, a Soil Digital Twin, that could be then used for assessing and continuously monitoring Soil Health metrics by land use and/or management parcel, supporting the European Commission’s objective of transitioning towards healthy soils by 2030. The project is divided into seven (7) work-packages including: (WP2) Policy and stakeholder engagement - networking and synchronising with EU and national programmes, (WP3) Soil health methodology and standards - developing/testing methodology to be used by WPs 4-6, (WP4) Soil health in-situ monitoring tools and data - developing field and laboratory solutions for Observations & Measurements, (WP5) Harmonised EU-wide soil monitoring services - developing the final suite of tools, data and services, (WP6) Multi-actor engagement pilots - organizing field-works and collect users' feedback, (WP7) Soil literacy, capacity building and communication - organizing public campaigns and producing educational materials. Key deliverables of the project include: 1) Coherent Soil Health Index methodology, 2) Rapid Soil Health Assessment Toolbox, 3) AI4SoilHealth Data Cube for Europe, 4) Soil-Health-Soil-Degradation-Monitor, and 5) AI4SoilHealth API and Mobile phone App. Produced tools will be exposed to target-users (including farmer associations in >10 countries), so their feedback is used to improve design/functionality. Produced high-resolution pan-European datasets will be distributed under an Open Data licence, allowing easy access by development communities.
MS Gr. class. c. 6 1253
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 13 col. 10 sup. Epicurus, De natura 28
Drawing by Carlo Orazi
Metadata of the data used in the article "Influential Allies and Grassroots Movement Mobilization: Ukraine's Maidan, 2013 – 2014"
Creators: name: Zelinska, Olga
Publisher: name: Zenodo
Year: 2023
Subjects: social movements
political parties
Ukraine
Euromaidan

description: This upload is a description of public domain data used for writing the article "Influential Allies and Grassroots Movement Mobilization: Ukraine’s Maidan, 2013 – 2014”.
description: This research was supported by Poland's National Science Center under Grant UMO-2021/40/C/HS6/00229.
Insights from an N3C RECOVER EHR-based cohort study characterizing SARS-CoV-2 reinfections and Long COVID
Creators: name: Chute, Christopher G.
name: Hill, Elaine
name: Preiss, Alexander
name: Zhou, Andrea
name: Laraway, Bryan
name: Brannock, M. Daniel
name: Hadley, Emily
name: Moffitt, Richard
name: Davis, Hannah
name: Loomba, Johanna
name: Chew, Rob
name: Wong, Rachel
name: Yoo, Yun Jae
name: Pfaff, Emily R.
name: Haendel, Melissa
name: Patel, Saaya
Publisher: name: Springer Nature
Year: 2024

description: Background Although the COVID-19 pandemic has persisted for over 3 years, reinfections with SARS-CoV-2 are not well understood. We aim to characterize reinfection, understand development of Long COVID after reinfection, and compare severity of reinfection with initial infection. Methods We use an electronic health record study cohort of over 3 million patients from the National COVID Cohort Collaborative as part of the NIH Researching COVID to Enhance Recovery Initiative. We calculate summary statistics, effect sizes, and Kaplan–Meier curves to better understand COVID-19 reinfections. Results Here we validate previous findings of reinfection incidence (6.9%), the occurrence of most reinfections during the Omicron epoch, and evidence of multiple reinfections. We present findings that the proportion of Long COVID diagnoses is higher following initial infection than reinfection for infections in the same epoch. We report lower albumin levels leading up to reinfection and a statistically significant association of severity between initial infection and reinfection (chi-squared value: 25,697, p-value: <0.0001) with a medium effect size (Cramer’s V: 0.20, DoF = 3). Individuals who experienced severe initial and first reinfection were older in age and at a higher mortality risk than those who had mild initial infection and reinfection. Conclusions In a large patient cohort, we find that the severity of reinfection appears to be associated with the severity of initial infection and that Long COVID diagnoses appear to occur more often following initial infection than reinfection in the same epoch. Future research may build on these findings to better understand COVID-19 reinfections.
The Impact of Roads on Land-Use Change in Ethiopia: Evidence from Satellite Data
Creators: name: Vaisey, Ariana Brynn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Using satellite-based land cover data for Ethiopia, I examine the relationship between
travel costs and the spatial allocation of economic activity. In analyzing a cross-section of land
cover data for all of Ethiopia in 2005/2006, I find that proximity to market is positively
associated with land being devoted to agriculture, when controlling for soil quality and climatic
factors. Additionally, I examine the change in land cover associated with the construction of the
Addis Ababa-Adama expressway, using panel data on land cover in a 40-km buffer of the
expressway for 2009 and 2016. I find that proximity to the expressway increases the likelihood
of a transition in land cover type, both into and out of agriculture. On average, the expressway
reduced the likelihood of agricultural land cover for land parcels within an inner buffer of the
expressway in the period after it opened. This study contributes to previous literature by
employing high spatial resolution GIS data that has not been previously applied to studies of
economic geography, by examining data from the African continent – where little empirical
work on transportation infrastructure and land cover change has been done –, and by using a
comprehensive measure of market access to assess transportation costs.
Management Strategies During Pregnancy to Prevent Neonatal Herpes: An Educational Intervention for Health Care Providers
Creators: name: Stanton, Jaime
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Neonatal herpes is a significant yet preventable outcome of genital herpes exposure. Approximately 1,500-2,000 new cases of neonatal herpes infection are diagnosed annually (Ural & Cheng Peng, 2013). The purpose of this project is to increase the knowledge of health care professionals about genital herpes and its prevention, so that the general public can become better informed. Ultimately, the hope is that by increasing the general public’s awareness about genital herpes and its prevention, genital herpes acquisition in pregnancy will be decreased, thus reducing cases of neonatal herpes. The educational intervention Neonatal Herpes Prevention: Management Strategies During Pregnancy combines lecture and interactive formats and is intended for use during an educational meeting. The envisioned use for the educational intervention is a continuing education course, specifically among health care professionals caring for pregnant women or women of childbearing age. The literature suggests that in-person educational meetings, web-based educational modules, and printed educational materials are all effective at improving professional practice among health care providers. Thus, the educational content is designed for adaptation to various educational methods in order to meet the diverse educational needs and learning style preferences of health care providers. The anticipated outcome is a reduction in occurrences of neonatal herpes as a result of increased awareness among providers, patients and the general public, behavioral changes regarding sex practices, and improved management of genital herpes.
MS Gr. class. c. 6 1254
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 13 col. 11 sup. Epicurus, De natura 28
Drawing by Carlo Orazi
Alteration of Pro-apoptotic and Anti-apoptotic Gene Expression in Breast Cancer Cell Lines
Creators: name: Edson, Leanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: A subset of human triple-negative breast cancer cell lines exhibit aberrant DNA
hypermethylation that is associated with DNA methyltransferase hyperactivity, overexpression
of DNMT3b, and methylation-dependent silencing of numerous genes. These breast cancer cell
lines are resistant to standard chemotherapeutic agents, but can be sensitized to chemotherapy
with demethylating drugs, such as 5-aza-2’deoxycytidine. In this study, we surveyed expression
of 328 genes associated with apoptosis and survival in an index cell line, Hs578T, using BioRad
Prime PCR Pathway Plates. This analysis identified several pro-apoptotic genes that are not
expressed (undetected) or expressed at negligible levels in Hs578T cells, including FASLG,
IGF1, CD27, and BLK. Epigenetic silencing of these genes (directly or indirectly) would
convey a survival advantage to the cancer cells through elimination of pro-apoptotic signaling.
These pro-apoptotic genes and/or members of their pathways have been shown to be subject to
methylation-dependent silencing in cancer cells. In addition, several anti-apoptotic genes were
abundantly expressed in Hs578T cells, including HSPB1 and NPM1. Epigenetic mechanisms
have not yet been shown to contribute to overexpression of anti-apoptotic genes in breast cancer.
The contributions of aberrant DNA hypermethylation to the silencing of pro-apoptotic genes
(and/or activation of anti-apoptotic genes) as a mechanism of chemotherapeutic resistance was
explored further using a panel of breast cancer cell lines. The results suggest that treatment of
triple-negative breast cancer cell lines that display aberrant DNA hypermethylation with
demethylating agents (like 5aza) sensitizes them to standard chemotherapeutic drugs
(Doxorubicin, Paclitaxel, 5-fluorouracil) by reactivation of pro-apoptotic genes. This
experimental observation forms the basis for designing new treatment approaches for patients
with triple-negative breast cancer that combine epigenetic and cytotoxic drugs.
MS Gr. class. c. 6 1255
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 13 col. 12 sup. Epicurus, De natura 28
Drawing by Carlo Orazi
Confined linear carbon chains: A route to bulk carbyne
Creators: name: Shi, Lei
name: Rohringer, Philip
name: Suenaga, Kazu
name: Niimi, Yoshiko
name: Kotakoski, Jani
name: Meyer, Jannik C.
name: Peterlik, Herwig
name: Ayala, Paola
name: Pichler, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The extreme instability and strong chemical activity of carbyne, the infinite sp1 hybridized carbon chain, are responsible for its low possibility to survive in ambient conditions. Therefore, much less has been possible to explore about carbyne as compared to other novel carbon allotropes such as fullerenes, nanotubes and graphene. Although end-capping groups can be used to stabilize carbon chains, length limitation is still a barrier for its actual production, and even more for applications. Here, we report a novel route for bulk production of record long acetylenic linear carbon chains protected by thin double-walled carbon nanotubes. A corresponding extremely high Raman band is the first proof of a truly bulk yield formation of very long arrangements, which is unambiguously confirmed by transmission electron microscopy and near-field Raman spectroscopy. Our production establishes a way to exceptionally long stable carbon chains including more than 2300 carbon atoms, and an elegant forerunner towards the final goal of a bulk production of essentially infinite carbyne.
description: 5 figures, carbyne
MS Gr. class. c. 6 1256
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 13 col. 13 sup. Epicurus, De natura 28
Drawing by Carlo Orazi
Study of the Influence from the Disjoining Pressure and the Liquid Conduction Resistance to the Thin Film Evaporation
Creators: name: Wang, Xiaoman
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: Thermodynamics

description: Thin film evaporation in a meniscus is critical to the design of heat pipes and applications related to desalination, lubrication, and medical technologies. Theory suggests that with smaller film thickness, the local evaporation mass flux will increase due to increasing interfacial temperature. The rise of mass flux is followed by a sharp decrease to zero in the non-evaporating region, due to interfacial forces that inhibit the escape of vapor molecules. With novel atomistic simulations and thermal experimental approaches, we studied the local evaporation profile in the meniscus region. The interfacial force, named disjoining pressure, is studied through molecular dynamics (MD) simulations. The first-ever validation of the Hertz-Kundsen-Schrage relation with disjoining is performed using MD simulations and good agreement has been achieved. The experimental efforts to determine the local evaporation mass flux across the meniscus is also conducted to study the influence from the liquid conduction resistance. We use frequency domain thermoreflectance (FDTR), a non-contact laser-based method with micron-scale lateral resolution. A two-step workflow is developed to extract evaporation properties. In step one, a neural network (NN) model is trained on a series of representative finite element (FE) simulations to emulate the FDTR experiment, accounting for the non-uniformity of the meniscus thickness. In step two, the trained NN model is applied on the FDTR signals for property extraction. The maximum evaporation heat transfer coefficient across the meniscus is found to be 1.0 +0.5 −0.4 MW/m2-K, with a spatially weighted substrate temperature rise of 20 K. In the end, a technique proposed to reduce the uncertainty caused by the laser spot radius in FDTR with a reference sample is also discussed.
title: Το κτήριο της Θεολογικής Σχολής του Πανεπιστημίου Αθηνών
title: The edifice of University's of Athens School of Theology
titleType: AlternativeTitle
Creators: name: Μπενετάτος-Κιούσης, Παύλος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2023
Subjects: Θεολογική Σχολή
Μπρουταλισμός
Καλυβίτης
Λεονάρδος
Πανεπιστημιούπολη
Αρχιτεκτονική φωτογραφία

description: Το κτήριο της Θεολογικής Σχολής του ΕΚΠΑ θεωρείται ένα από τα χαρακτηριστικά δείγματα του αρχιτεκτονικού ρεύματος του Μπρουταλισμού στην Ελλάδα. Εκ πρώτης όψεως, ο Μπρουταλισμός με την έμφαση που αποδίδει στο εμφανές σκυρόδεμα και στη λειτουργικότητα δεν φαίνεται να αποτελεί την πλέον αναμενόμενη επιλογή για τη Θεολογική Σχολή, γνωστή για την ex officio ροπή της σε συντηρητικότερες προσεγγίσεις. Σε γενικές γραμμές, ο Μοντερνισμός παρουσιάστηκε ως μονόδρομος στην μεταπολεμική αρχιτεκτονική, για οικονομικούς, κοινωνικούς και άλλους λόγους. Ταυτόχρονα, υιοθετήθηκε και από τα μεγάλα εκπαιδευτικά ιδρύματα της χώρας, που είχαν ανάγκη από εγκαταστάσεις ικανές να στεγάσουν τις δραστηριότητές τους, σε μια εποχή διεύρυνσης της πανεπιστημιακής μόρφωσης. Με τη φωτογραφική τεκμηρίωση του κτηρίου επιδιώκουμε να διερευνήσουμε την αρχιτεκτονική προσέγγιση που ακολούθησαν οι δημιουργοί του και να αναδείξουμε ορισμένα κομβικά συνθετικά στοιχεία. Κατά τη φωτογραφική επεξεργασία, αποφύγαμε τις βαθιές επεμβάσεις. Διατηρήσαμε ορισμένα από τα σημάδια χρήσης, ξεφεύγοντας έτσι από την παγίδα της φωτογραφίας - «μακέτα», κατηγορία εικόνων αγαπητή στην αγορά ακινήτων.
The origin of hyperferroelectricity in Li$B$O$_3$ ($B$=V, Nb, Ta, Os)
Creators: name: Li, Pengfei
name: Ren, Xinguo
name: Guo, Guang-Can
name: He, Lixin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic and structural properties of Li$B$O$_3$ ($B$=V, Nb, Ta, Os) are investigated via first-principles methods. We show that Li$B$O$_3$ belong to the recently proposed hyperferroelectrics, i.e., they all have unstable longitudinal optic phonon modes. Especially, the ferroelectric-like instability in the metal LiOsO$_3$, whose optical dielectric constant goes to infinity, is a limiting case of hyperferroelectrics. Via an effective Hamiltonian, we further show that, in contrast to normal proper ferroelectricity, in which the ferroelectric instability usually comes from long-range coulomb interactions, the hyperferroelectric instability is due to the structure instability driven by short-range interactions. This could happen in systems with large ion size mismatches, which therefore provides a useful guidance in searching for novel hyperferroelectrics.
Inhibition of norepinephrine-reuptake and subsequent binge-like alcohol intake
Creators: name: Vis, Cortland
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The role of norepinephrine (NE) has recently received increasing attention in the context
of alcohol misuse and how this may transform into alcohol dependence. In order to assess the
pharmacological potential of the NE system in the prevention of alcohol abuse, we must have a
more precise understanding of the neurobiological pathways involved. Previous research
suggests that the locus coeruleus (LC) – lateral hypothalamus (LH) pathway may be particularly
important in mediating the excessive use of alcohol, known as binge drinking. Using the
“drinking in the dark” (DID) procedure, we evaluated the effects of two different NE-increasing
drugs on the ethanol and sucrose intake of C57BL/6J mice. Atipamezole, an alpha-2
adrenocepter (AR) antagonist, was infused directly into the LH, decreasing ethanol and sucrose
consumption in females exclusively. In a second study, the noradrenergic reuptatke inhibitor,
reboxetine, was administered systemically to determine if increasing NE activity throughout the
body alters binge-like ethanol consumption. Reboxetine significantly reduced ethanol and
sucrose intake across all subjects, indicating that NE signaling may be a useful target for
modulating excessive ethanol and/or general consummatory behavior. While the results suggest
that increasing NE signaling may be an effective method to reduce alcohol intake, further
investigation is needed regarding the relative influence of specific brain pathways and which
mechanisms will maximize the selectivity for preventing alcohol dependence.
title: Entwicklung, Infrastruktur und Macht
Creators: name: Forstbauer, Aleksandar Kolja
Year: 2023

description: Diese Masterarbeit untersucht vor dem Hintergrund der Welt-System-Theorie von Wallerstein, die chinesischen Entwicklungsmaßnahmen auf dem afrikanischen Kontinent und fragt nach deren Eignung als Alternative zu den Modellen des Globalen Nordens. Zu diesem Zweck wird die Position Chinas innerhalb des Welt-Systems untersucht und die Aktualität der Theorie Wallersteins geprüft. Werden statistische Indikatoren herangezogen, wird China meist als Semi-Peripherie klassifiziert. Gleichzeitig sind sich die Forscher*innen über die transzendente Rolle Chinas innerhalb des Welt-Systems einig. Ein Beispiel stellen die Entwicklungsprojekte auf dem afrikanischen Kontinent dar. Die wirtschaftlichen, politischen und gesellschaftlichen Einflüsse übersteigen die einer Semi-Peripherie. Peking bietet alternative Finanzierungsmodelle an und stellt den Aufbau von Infrastruktur sowie die Förderung der Industrialisierung in den Vordergrund. Auf diese Weise grenzt sich China praktisch wie diskursiv vom Globalen Norden ab und stellt hegemoniale Ansprüche. Das chinesische Entwicklungsmodell (obgleich schwer definierbar) kann als Alternative für afrikanische Länder fungieren. Der (wirtschaftliche) Strukturwandel wird durch flexible Kredite angestoßen und die Präsenz Chinas hat die Entstehung einer Wettbewerbsdynamik unter den Geber*innen zur Folge - zugunsten der afrikanischen Partner*innen. Negativ wirken sich hingegen die teils intransparenten chinesischen Finanzierungsstrukturen und die Nichtbeachtung ökonomischer, politischer und ökologischer Folgen aus. Peking strebt die Verbesserung der eigenen Position innerhalb des Welt-Systems an und trägt auf diese Weise zur Aufrechterhaltung ungleicher kapitalistischer Ausbeutungsmechanismen bei.
Pseudo-Hydrogen Passivation_A Novel Way to Calculate Absolute Surface Energy of Zinc Blende (111) Surface
Creators: name: Zhang, Yiou
name: Zhang, Jingzhao
name: Tse, Kinfai
name: Chan, Chunkai
name: Deng, Bei
name: Zhu, Junyi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Determining accurate absolute surface energies for polar surfaces of semiconductors has been a great challenge in decades. Here, we propose pseudo-hydrogen passivation to calculate them, using density functional theory approaches. By calculating the energy contribution from pseudo-hydrogen using either a pseudo molecule method or a tetrahedral cluster method, we obtained (111) surfaces energies of Si, GaP, and ZnS with high self-consistency. This method quantitatively confirms that surface energy is determined by the number and the energy of dangling bonds of surface atoms. Our findings may greatly enhance the basic understandings of different surfaces and lead to novel strategies in the crystal growth.
An Examination of the Impact of State Government Implementation on the Affordable Care Act
Creators: name: Jones, Justin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: For the past few years, the Patient Protection and Affordable Care Act (ACA) has been a
constant source of debate among the American public. Whether it has been in the halls of
Congress or on the street corners of U.S. cities, everyone seems to have an opinion on this
divisive law. Many scholars agree that “Obamacare,” as it is known colloquially, is an integral
part of the rise in ideological polarization among our lawmakers. Due to this political
polarization, implementation of the Affordable Care Act has varied across the United States.
Generally, states with liberal legislatures have embraced the act, while states with conservative
legislatures have attempted to block it (Obama Care Facts 2013, 1). This ideological divide has
very important implications for citizens. Many of the provisions of the law contain health
insurance provisions that will affect the daily lives of nearly every citizen. The implementation
of these provisions is essential to their success. My thesis seeks to discover the true effects of the
ideological divide on the Affordable Care Act by doing a state-by-state analysis. In doing this, I
answer the question: “How have state government actions altered the effectiveness of the
Affordable Care Act?”
Fractal structures for the Jacobi Hamiltonian of restricted three-body problem
Creators: name: Rollin, G.
name: Lages, J.
name: Shepelyansky, D. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the dynamical chaos and integrable motion in the planar circular restricted three-body problem and determine the fractal dimension of the spiral strange repeller set of non-escaping orbits at different values of mass ratio of binary bodies and of Jacobi integral of motion. We find that the spiral fractal structure of the Poincaré section leads to a spiral density distribution of particles remaining in the system. We also show that the initial exponential drop of survival probability with time is followed by the algebraic decay related to the universal algebraic statistics of Poincaré recurrences in generic symplectic maps.
description: 9 pages, 13 figures. Accepted for publication in New Astronomy
Geothermal resources of the Texas Gulf Coast: environmental concerns arising from the production and disposal of geothermal waters
Creators: name: Gustavson, Thomas C.
name: Kreitler, Charles W.
Publisher: name: University of Texas at Austin. Bureau of Economic Geology
Year: 1976
Subjects: Geothermal engineering -- Environmental aspects -- Texas

description: Bureau Publication GC7607 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/426-gc7607.html
description: Disposal and temporary surface storage of spent geothermal fluids and surface subsidence and faulting are the major environmental problems that could arise from geopressured geothermal water production. Geopressured geothermal fluids are moderately to highly saline (8,000 to 72,000 parts per million total dissolved solids) and may contain significant amounts of boron (19 to 42 parts per million). Disposal of hot saline geothermal water in subsurface saline aquifers will present the least hazard to the environment. It is not known, however, whether the disposal of as much as 54,000 m3 (310,000 barrels) of spent fluids per day into saline aquifers at the production site is technically or economically feasible. If saline aquifers adequate for fluid disposal cannot be found, geothermal fluids may have to be disposed of by open watercourses, canals, and pipelines to coastal bays on the Gulf of Mexico. Overland flow or temporary storage of geothermal fluids may cause negative environmental impacts. As the result of production of large volumes of geothermal fluid, reservoir pressure declines may cause compaction of sediments within and adjacent to the reservoir. The amount of compaction depends on pressure decline, reservoir thickness, and reservoir compressibility. At present, these parameters can only be estimated. Reservoir compaction may be translated in part to surface subsidence. When differential compaction occurs across a subsurface fault, fault activation may occur and be manifested as differential subsidence across the surface trace of the fault or as an actual rupture of the land surface.The magnitude of environmental impact of subsidence and fault activation varies with current land use; the greatest impact would occur in urban areas, whereas relatively minor impacts would occur in rural, undeveloped agricultural areas. Geothermal resource production facilities on the Gulf Coast of Texas could be subject to a series of natural hazards: (1) hurricane- or storm-induced flooding, (2) winds from tropical storms, (3) coastal erosion, or (4) expansive soils. None of these hazards is generated by geothermal resource production, but each has potential for damaging geothermal production and disposal facilities that could, in time, result in leakage of hot saline geothermal fluids.
MS Gr. class. c. 6 1257
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1479 fr. 5 col. 1. Epicurus, De natura 28
Drawing by Carlo Orazi