cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Motives for higher education: a study of the academic motivation of sixth-formers
Creators: name: Whitehead, Joan Margaret
Publisher: name: The Open University
Year: 1979

description: The main aim of the research is to see if the extrinsic motivation model outlined by Hull and Skinner and the intrinsic motivation model outlined by Bruner, Hunt and Berlyne are appropriate for explaining behaviour within the area of academic motivation. The theory that differences in type of motivation are linked to social class (Swift, 1966) is also explored. The research concentrates on the reasons given by sixth-formers (in comprehensive schools in England and Wales) for staying on at school beyond the statutory leaving age. In order to carry out the research, questionnaires were designed to cover the following areas: - pupils' motivation, pupils' perceptions of their parents' attitudes towards their own jobs, authority and the education of their children. Of necessity, therefore, much of the research is devoted to the problems of measurement within these areas. Information was also collected on the achievement of pupils, their aspirations for the future and their parents' occupations. Analysis of the questionnaires (administered to over 700 sixth-formers) indicated that reasons for being in the sixth form can be divided into two broad groups; motivation derived from activities within the school system (intrinsic motivation) and motivation to be in the system derived from external influences (extrinsic motivation). Some pupils exhibit both. types of motivation while others appear to be motivated almost exclusively by one or the other. Girls are more intrinsically motivated than boys, and boys more extrinsically motivated than girls. There is no relationship between father's occupation or parents' education and pupil's achievement, aspirations or type of motivation. There is however a strong relationship between parents being dissatisfied with their jobs, being authoritarian and having authoritarian children with high extrinsic motivation. Intrinsic motivation is independent of social class and parental attitudes. High achievers can be both intrinsically or extrinsically motivated (extrinsic motivation I), there is however a tendency for low achievement to be associated with a desire for money (extrinsic motivation ii). Type of motivation is a fairly good predictor of aspirations, particularly for university-bound pupils, who have a high level of intrinsic motivation. Extrinsic motivation I is associated with polytechnic-bound pupils and extrinsic motivation II with pupils who are entering full-time employment.
Veni Creator Spiritus. Der Pfingsthymnus und seine hymnologische und musikalische Rezeption
Creators: name: Jolliet, Elie
Publisher: name: Zenodo
Year: 2016
Subjects: Hymnus
Hymnologie
Rezeption
Analyse
Nicolas de Grigny

description: Diese Arbeit soll an einem exemplarischen Fall darstellen, was Cantus firmus-gebundene Orgelwerke für historische, theologische und hymnologische Hintergründe aufweisen. Da man sich solche vertieften Recherchen im Kirchenmusiker-Alltag kaum leisten kann, soll hier bewusst auf die Hintergründe, welche seltener einbezogen werden, fokussiert werden. Die klassischen Analyseformen wie die Betrachtung der Form oder Harmonik wurden nur dort hinzugezogen, wo sie Konsequenzen für die vorliegenden Untersuchungen haben. Das Veni Creator von Nicolas de Grigny (1672-1703) und der damit verbundene gregorianische Pfingsthymnus bieten dafür ein spannendes Recherchefeld. Der Schwerpunkt der Arbeit liegt auf dem hymnologischen Teil, wo nach Allgemeinem zum Hymnus anhand von je zwei Melodie- und Textneufassungen dessen hymnologische Rezeption beispielhaft untersucht wird. Die musikalische Rezeption beschränkt sich nach einleitenden Worten zu Grigny, seinem Orgelwerk und dem damaligen liturgischen Gebrauch von Hymnus-gebundener Orgelmusik (Alternatim-Praxis) auf eine Motivanalyse, welche die Verwendung des Cantus firmus in Grignys Orgelhymnus kommentiert.
Evaluation of Tigris River Water Quality using Biological  Indicators
Creators: name: Al Taie, Dhafer Hameed Majeed
name: Bour, Monia EL
Publisher: name: Zenodo
Year: 2024

description: With the industrialization of societies, population growth, climate change, and increased

exploitation of surface waters, environmental pollutants have increased, leading to a decrease

in the quality of existing water resources. Therefore, examining the quality of river pollution is

of great importance for agricultural and environmental programs. In order to investigate the

water quality of the Tigris River using 4 biological indicators, sampling was carried out from

April 2021 to March 2022 and the above indicators were calculated based on the data obtained.

After identifying and determining sampling stations, biological indicators were calculated to

determine the level of pollution in this river. The results showed that the average NAFWQI

index indicated poor water quality, the BMWP index indicated moderate and poor water

quality, the ASPT index indicated suspected pollution and pollution with medium levels, and

the Helsonhof index indicated relatively poor and poor water quality. Based on the results of

this study, most of the examined indicators show that Tigris River's water quality is in a low to

moderate category.
title: Mansky, Peter interview conducted by Campbell/Spillane
Creators: name: Campbell, Nancy
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: Abuse liability; Addiction; Addiction neuroscience; Addiction research; Behavioral pharmacology; Drug abuse; Drug dependence; Ethics of addiction research; Medication assisted treatment; Substance abuse disorder; Substance abuse treatment
subject: Health behavior and health education; History
subject: Humanities
subject: FOS: Humanities
subject: Health Sciences

description: Peter Mansky, MD, was a psychiatrist that moved to Las Vegas from Albany, New York in 2004 to help lead a nonprofit foundation focused on the health of physicians. Plenty of clinicians battling addiction found Dr. Peter Mansky to be relatable because he spent his adulthood battling chronic pain without so much as a complaint. And if he could do it, his patients—mostly doctors with drug and alcohol use disorders—could battle their demons. When the foundation lost its state funding, Dr. Mansky took on the caseload and built his own private practice, the Nevada Professionals Assistance Program. He simultaneously launched a side business, which offered general adult psychiatric services to help pay for the Nevada Professionals Assistance Program’s overhead costs. During his career, Dr. Mansky also served on the Clark County Medical Society board, taught at Touro University Nevada and was a distinguished life fellow of the American Psychiatric Association. Dr. Mansky died August 4, 2018 at the age of 75. Sources: https://www.reviewjournal.com/local/local-las-vegas/las-vegas-addiction-specialist-dr-peter-mansky-dies-at-75/ Accessed 12 Mar 2023. https://businesspress.vegas/c-level/industry-tribute/industry-tribute-local-psychiatrist-dr-peter-mansky-dies/ Accessed 12 Mar 2023.
Groundwater - surface water interactions in the Salmon River Watershed, BC : integrating spectroscopy, isotopes, water quality, and land use analyses
Creators: name: Naugler, Trudy Lynn
Publisher: name: University of British Columbia
Year: 2011

description: Understanding the sources and pathways of water pollutants is critical for protecting freshwater resources. Relationships between water quality and land use can be obscured by variable land use, seasonal variability, and interactions between surface water and groundwater. This research combines the tools of fluorescence spectroscopy, nitrate stable isotopes and water chemistry to better understand land use impacts on water quality. The Hopington aquifer, one of the most vulnerable aquifers in the Lower Fraser Valley, is a source of drinking water for the Township of Langley. This aquifer is also responsible for maintaining the summer stream flow in the Salmon River, a productive Coho salmon stream. Elevated nitrates in both ground and stream water are a concern. Twelve stream sites and eleven groundwater wells were sampled during 2006 to try and "fingerprint" different water sources. Samples were analyzed for: uv-visible absorbance, fluorescence, DOC, nutrients (ammonium, nitrate, ortho-phosphate), chloride, trace elements, and nitrate-isotopes (δ¹⁸0 and δ¹⁵N). The combination of these tools provided a more detailed look at the groundwater - surface water interactions and helped track pollutants within the system. Nitrate concentrations in the Salmon River increase where it cuts through the Hopington aquifer; concentrations peak in August when groundwater makes up the greatest proportion of the stream flow. Humic-like fluorescence was able to measure this groundwater influence because groundwater has much lower fluorescence. Nitrate isotopes showed that inorganic fertilizers were not a dominant source, but that soil N, septic tank leakage, and manure were possible sources. Stream sites influenced by groundwater had an isotopic fingerprint similar to nearby wells, showing that the nitrate source(s) were the same. A GIS-based land use analysis suggested that agricultural land use was having the greatest impact on local water quality, especially on surface waters in the wet season. Protein-like fluorescence showed potential as a tool for pollution monitoring and should be explored further.
THE NATURE AND BREEDING FOR PHYSIOLOGICAL STRESS RESISTANCE IN SWEET POTATO
Creators: name: Martin, F.W.
name: Santiago, J.
name: Ruberté, R.
name: Martin, F.W.
name: Santiago, J.
name: Ruberté, R.
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Stress is defined and progress in studies of physiological stress in sweet potato is reviewed, with emphasis on breeding. Sweet potatoes were bred in the heavy clay soils of Mayaguez by selecting seedlings that had grown in such soil and by polycrossing. The population so developed increased in tolerance to the soil, and outstanding clones were found. These clones were shown to have considerable yield stability in better soils. Seedlings were also grown in pots in the greenhouse and subject to several stresses: flooding, drought, soil acidity, shade, salinity, poor fertility, and competition with other plants. Selections for stress resistance were made and selections were polycrossed. Stress resistance increased in populations and outstanding clones were produced that outyielded standard clones in field trials under stress. Stresses reduced plant growth and resulted in some cases in characteristic responses to stress. Components of yield were explained. Increased yields occurred chiefly due to increased storage root size. Selection for stress results in simultaneous selection for genes for high yield, and for resistance to the stress in question. Prospects for further progress are excellent.
2000 WTO Negotiations: Issues for Agriculture in the Northern Plains and Rockies
Creators: name: Trade Research Center
name: Trade Research Center
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: World Trade Organization

description: Contents: Introduction and major findings, Linda M. Young and John M. Antle; Negotiating priorities for wheat, Donald MacLaren; Negotiating issues for beef, Gary Brester, Dermot Hayes, and Roxanne L. Clemens; Negotiating priorities for feed grains, Barry K. Goodwin; Major issues for the U.S. sugar industry, Won W. Koo; Growing opportunities: U.S. interests in agricultural trade agreements, Daniel A. Sumner; The European Union: agriculture under the CAP in the 2000 WTO negotiations, Vincent H. Smith; The Cairns Group: negotiating priorities and strategies, Wiliam M. Miner; Land use in the Norther Plains: what does the future hold?, David Buschena and Myles Watts; Glossary; About the authors
description: Edited by Linda M. Young, James B. Johnson, and Vincent H. Smith
From Pixels to Papers: Best Practices for Ethical Image Analysis and Data Management
Creators: name: García-Gonzalez, Judith
Publisher: name: Zenodo
Year: 2024

description: Lecture on best practices for ethical image analysis and basics of data management given to researchers in the framework of the "Multi-modal light microscopy in plant research workshop", which took place at the Institute of Experimental Botany of the Czech Academy of Sciences (16-17th October 2024) 

Work supported by the Czech-Bioimaging and the Ministry of Education and Sports of the Czech Republic.
Single-cell atomic quantum memory for light
Creators: name: Opatrny, Tomas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent experiments demonstrating atomic quantum memory for light [B. Julsgaard et al., Nature 432, 482 (2004)] involve two macroscopic samples of atoms, each with opposite spin polarization. It is shown here that a single atomic cell is enough for the memory function if the atoms are optically pumped with suitable linearly polarized light, and quadratic Zeeman shift and/or ac Stark shift are used to manipulate rotations of the quadratures. This should enhance the performance of our quantum memory devices since less resources are needed and losses of light in crossing different media boundaries are avoided.
description: 6 pages, 2 figures, to be published in Phys. Rev. A
Additional file 1 of Obstetric pain correlates with postpartum depression symptoms: a pilot prospective observational study
Creators: name: Lim, Grace
name: LaSorda, Kelsea R.
name: Farrell, Lia M.
name: McCarthy, Ann M.
name: Facco, Francesca
name: Wasan, Ajay D.
Publisher: name: figshare
Year: 2020
Subjects: subject: Cell Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1: Supplemental tables. These tables give detailed results of the mediation and moderation analyses as well as the multivariate regression analyses.
Giant Grüneisen parameter in a strain-tuned superconducting quantum paraelectric: A consequence of the vanishing ferroelectric phonon energy
Creators: name: Franklin, Jacob
name: Xu, Bochao
name: Davino, Donovan
name: Balatsky, Alexander V.
name: Aschauer, Ulrich
name: Sochnikov, Ilya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductivity and ferroelectricity are typically incompatible because the former needs free carriers, but the latter is usually suppressed by free carriers, unless their concentration is low. In the case of strontium titanate with low carrier concentration, unconventional superconductivity and ferroelectricity were shown to be correlated. Here, we report theoretically and experimentally evaluated Grüneisen parameters whose divergence under tensile stress indicates that the dominant phonon mode that enhances the superconducting order is the ferroelectric transverse soft-mode. This finding rules out all other phonon modes as the main contributors to the enhanced superconductivity in strained strontium titanate. This methodology shown here can be applied to many other quantum materials.
Ein frühweichselzeitliches Profil bei Rahden-Welle (nördliches Wiehengebirgsvorland, Nordrhein-Westfalen)
Creators: name: Skupin, Klaus
name: Stritzke, Rüdiger
Publisher: name: Geozon Science Media
Year: 1997

description: Bei Aushubarbeiten an der Kläranlage in Rahden-Welle wurden Niederterrassenablagerungen der Kleinen Aue ergraben. Unter Auen- und Talsanden erschloß sich eine 1-2 m mächtige Silt- und Torfschicht, auf die im Liegenden vermutlich saalezeitliche Schmelzwassersande folgten. Der pollenanalytischen Bearbeitung der Torfschicht zufolge prägten vor allem Gräser sowie Kiefer und Birke das damalige Landschaftsbild. In Verbindung mit dem Nachweis erheblicher Heliophytenanteile erlaubt das pollenfloristische Material eine Einstufung in das Herning-Stadial der frühen Weichsel-Kaltzeit.
description: research
Additional file 2 of The interplay of HIV and human papillomavirus-related cancers in sub-Saharan Africa: scoping review
Creators: name: Kabelo Matjie Bridget Lekoane
name: Kuupiel, Desmond
name: Tivani P. Mashamba-Thompson
name: Themba G. Ginindza
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2: Table S1. Calculation of degree of agreement.
title: Martin, Catherine Martin interview about her father William conducted by Campbell/Spillane
Creators: name: Campbell, Nancy
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: Abuse liability; Addiction; Addiction neuroscience; Addiction research; Behavioral pharmacology; Drug abuse; Drug dependence; Ethics of addiction research; Medication assisted treatment; Substance abuse disorder; Substance abuse treatment
subject: Health behavior and health education; History
subject: Humanities
subject: FOS: Humanities
subject: Health Sciences

description: Catherine A. Martin, M.D., is the Dr. Laurie L. Humphries Endowed Chair in Child Psychiatry in and the Division Director of Child and Adolescent Psychiatry at the University of Kentucky. She is part of interdisciplinary research teams and investigates novel treatments to aid smoking cessation including behavioral, pharmacological, and family interventions. She is involved in the training of clinical researchers locally and nationally. Dr. Martin was interviewed about her recollections of her father, Dr. William R. Martin. Department of Psychiatry, University of Kentucky College of Medicine. https://psychiatry.med.uky.edu/users/cmartin#profileTab4 Accessed 09 June 2023 William R. Martin, M.D., was former Director of the Addiction Research Center in Lexington, Kentucky, and Chair, Department of Pharmacology, University of Kentucky. He died May 27, 1993.
The Role of Gender, Risk, and Time Preferences in Farmers' Rice Variety Selection in Eastern India
Creators: name: Mehar, Mamta
name: Yamano, Takashi
name: Panda, Architesh
name: Mehar, Mamta
name: Yamano, Takashi
name: Panda, Architesh
Publisher: name: Unknown
Year: 2017
Subjects: subject: Community/Rural/Urban Development
subject: Farm Management
subject: Labor and Human Capital
subject: risk preference
subject: time preference
subject: gender
subject: climate change
subject: rice variety
subject: drought tolerance
subject: submergence tolerance
subject: Eastern India

description: Using data from 5,601 rice farmers in Eastern India, this study examined the role of gender, risk, and time preferences in farmers' rice variety selection in Eastern India. The determinants of the following were estimated: farmers’ rice variety selection according to variety type (i.e., modern [non-hybrid], stress-tolerant, hybrid, and traditional), and farmers’ main reasons (i.e., yield potential, taste/cooking quality, marketability/affordability, and stress tolerance) for choosing a rice variety. A multivariate probit model was employed to identify the factors that influence farmers’ decision-making, since some farmers choose to mix rice varieties from multiple categories. The results revealed that female farmers, who are more risk-averse, usually choose rice varieties based on cooking quality (e.g., good taste, high cooking quality, and good straw quality) and stress tolerance. They are less likely to select hybrid rice, and also less likely to base their decision on market-oriented reasons, compared to male farmers. Certain rice varieties released many decades ago remain popular among farmers because of multiple preferred attributes. The preference model is useful in understanding why some varieties are more popular than others, among female and male farmers.
Dynamical Exchange Effects in a Two-Dimensional Many-Polaron Gas
Creators: name: Hameeuw, K. J.
name: Tempere, J.
name: Brosens, F.
name: Devreese, J. T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We calculate the influence of dynamical exchange effects on the response properties and the static properties of a two-dimensional many-polaron gas. These effects are not manifested in the random-phase approximation which is widely used in the analysis of the many-polaron system. Here they are taken into account by using a dielectric function derived in the time-dependent Hartree-Fock formalism. At weak electron-phonon coupling, we find that dynamical exchange effects lead to substantial corrections to the random-phase approximation results for the ground state energy, the effective mass, and the optical conductivity of the polaron system. Furthermore, we show that the reduction of the spectral weight of the optical absorption spectrum at frequencies above the longitudinal optical phonon frequency, due to many-body effects, is overestimated by the random-phase approximation.
description: 9 pages, 7 figures
Additional file 1 of The interplay of HIV and human papillomavirus-related cancers in sub-Saharan Africa: scoping review
Creators: name: Kabelo Matjie Bridget Lekoane
name: Kuupiel, Desmond
name: Tivani P. Mashamba-Thompson
name: Themba G. Ginindza
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Electronic database search results for title screening.
Effects of local decoherence on quantum critical metrology
Creators: name: Chen, Chong
name: Wang, Ping
name: Liu, Ren-Bao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The diverging responses to parameter variations of systems at quantum critical points motivate schemes of quantum metrology that feature sub-Heisenberg scaling of the sensitivity with the system size (e.g., the number of particles). This sensitivity enhancement is fundamentally rooted in the formation of Schrödinger cat states, or macroscopic superposition states at the quantum critical points. The cat states, however, are fragile to decoherence caused by local noises on individual particles or coupling to local environments, since the local decoherence of any particle would cause the collapse of the whole cat state. Therefore, it is unclear whether the sub-Heisenberg scaling of quantum critical metrology is robust against the local decoherence. Here we study the effects of local decoherence on the quantum critical metrology, using a one-dimensional transverse-field Ising model as a representative example. Based on a previous work [Phys. Rev. Lett. 94, 047201 (2005)] on the critical behaviors of the noisy Ising model, which shows that the universality class of the quantum criticality is modified by the decoherence, we find that the standard quantum limit is recovered by the single-particle decoherence, which is equivalent to local quantum measurement conducted by the environment and destroys the many-body entanglement in the ground state at the quantum critical point. Following the renormalization group analysis [Phys. Rev. B 69, 054426 (2004)], we argue that the noise effects on quantum critical metrology should be universal. This works demonstrates the importance of protecting macroscopic quantum coherence for quantum sensing based on critical behaviors.
description: 7pages, 2 figures
Examples of Weichselian environments: local versus regional developments
Creators: name: Kolstrup, Else
Publisher: name: Geozon Science Media
Year: 1994

description: In der vorliegenden Arbeit werden einige Unsicherheitsfaktoren bei der Rekonstruktion von Paläo-Umweltbedingungen diskutiert. In der Diskussion werden zwei Beispiele aus dem terrestrischen Bereich angeführt, nämlich Frosthügel und Brände; wobei der Schwerpunkt der Untersuchungen auf dem Gegensatz von lokalen zu regionalen Umweltveränderungen liegt, Es wird demonstriert, daß lokale Veränderungen, die keine klimatischen Ursachen haben, Ablagerungen entstehen lassen können, die den Eindruck erwecken, als seien sie das Ergebnis klimatischer Veränderungen. Es wird festgestellt, daß künftige Untersuchungen eine Fülle zusätzlicher Informationen über Paläo-Umweltentwicklungen und ihre komplexen Beziehungen hinsichtlich Ursache und Wirkung liefern können. Um aber schlüssige Rekonstruktionen machen zu können, ist es notwendig, mögliche Effekte sowohl klimatisch als auch nicht klimatisch induzierter Entwicklungen zu untersuchen
description: research
Die Auswirkung alter Kryomere auf die „Rodados Patagónicos" in Nordpatagonien, Argentinien
Creators: name: Trombotto, Dario
name: Ahumada, Analia
Publisher: name: Geozon Science Media
Year: 1995

description: Es wurden Profile von patagonischen Geröllen, einem fluvialen Konglomerat, in der Nähe der Stadt Puerto Madryn bei 43° s. B. in Nordpatagonien, Argentinien, untersucht, um Gefrier- und Auftau Strukturen zu analysieren. Das Konglomerat stammt aus dem Pliozän/Pleistozän. Gefügeanalysen unterstützen eine Syngenese von kalten Phänomenen und der Ablagerung der patagonischen Gerölle. In den patagonischen Geröllen finden sieh syngenetische und epigenetische fossile Eiskeile, die bis ins Tertiär reichen. Es gibt keine absolute Datierung, aber die kryogenen Strukturen lassen verschiedene kalte Perioden vermuten. Sie wurden unter dem Namen Penfordd Kryomer zusammengefaßt. Die paläoklimatische Rekonstruktion ergibt Permafrost und eine Jahresdurchschnittstemperatur, die im Vergleich zu heute 16° - 17° C niedriger war. Die patagonischen Gerölle sind von einem Karbonatnetz mit unterschiedlichen Kalkrettypen durchzogen, das ein orthogonales System erkennen läßt. Wahrend solide Karbonatteile die s. g. Nougat-Struktur (Säulen oder horizontale/quasihorizontale Schichten) bilden, werden die s. g. Fenster von Sektoren ohne Karbonat oder mit nur pulverigem Karbonat gebildet. Die Kalkreste bestehen vorwiegend aus CaCO3, Quarz und vulkanischem Glas. Die Untersuchungen des Gefüges und der Sedimente ergeben folgende paläoklimatische Bedingungen: Aridität. Vulkanismus und kalte Kryomere.
description: research
title: Epimorphisms between Groups given by means of Generators and Defining Relations
Creators: name: Vella, Alfred Dominic
Publisher: name: The Open University
Year: 1977

description: Chapter One is expository.

In Chapter Two we consider the following questions.
Let G = < X ; R >.
Is G Hopfian?
Is Aut(G) finitely generated?
Is there an algorithm to decide for any two words W1,W2 in X whether or not {W1,W2} generates G?
Let J be a set of group presentations. Is there an algorithm to decide whether or not two elements of J define isomorphic groups?

The study of these questions concerns the study of ependomorphisms between groups given by means of generators and defining relations. They have been considered by Pride in cases when G is a one-relator group with torsion.Using methods similar to those of Pride we obtain positive results for certain other groups particularly small cancellation groups. A problem related to Hopficity (stability) is also studied in Chapter Two.

In Chapter Three we study two questions. The first is. Let G= and suppose that all elements of R can be expressed in the free group F on X as a set of freely reduced words T in a set of words W in X. Does sgp(W) have presentation < h ; T(h) > under the mapping h --> W?

We look at this question in detail and give many positive as well as negative results.

The other question in Chapter Three concerns malnormality. It is known that a subset of the generators of a one-relator group with torsion generates a malnormal subgroup.Is this result true for small cancellation groups? We show that the answer to this question is no in general but yes if all the relators are proper powers greater than two.
Bernoulli numbers and the probability of a birthday surprise
Creators: name: Tsaban, Boaz
Publisher: name: arXiv
Year: 2003
Subjects: subject: Numerical Analysis (math.NA)
subject: Number Theory (math.NT)
subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 65D15

description: A birthday surprise is the event that, given k uniformly random samples from a sample space of size n, at least two of them are identical. We show that Bernoulli numbers can be used to derive arbitrarily exact bounds on the probability of a birthday surprise. This result can be used in arbitrary precision calculators, and it can be applied to better understand some questions in communication security and pseudorandom number generation.
description: Small updates
title: Great Britain Ministry of Information - Daily Press Notices and Bulletins (1944-05-08)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1944
Subjects: subject: World War, 1939-1945 – Social aspects
subject: World War, 1939-1945 -- History
subject: World War II
subject: Second World War
subject: World War Two
subject: Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Remote Mesoscopic Signatures of Induced Magnetic Texture in Graphene
Creators: name: Arabchigavkani, N.
name: Somphonsane, R.
name: Ramamoorthy, H.
name: He, G.
name: Nathawat, J.
name: Yin, S.
name: Barut, B.
name: He, K.
name: Randle, M. D.
name: Dixit, R.
name: Sakanashi, K.
name: Aoki, N.
name: Zhang, K.
name: Wang, L.
name: Mei, W. -N.
name: Dowben, P. A.
name: Fransson, J.
name: Bird, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Mesoscopic conductance fluctuations are a ubiquitous signature of phase-coherent transport in small conductors, exhibiting universal character independent of system details. In this work, however, we demonstrate a pronounced breakdown of this universality, due to the interplay of local and remote phenomena in transport. Our experiments are performed in a graphene-based interaction-detection geometry, in which an artificial magnetic texture is induced in the graphene layer by covering a portion of it with a micromagnet. When probing conduction at some distance from this region, the strong influence of remote factors is manifested through the appearance of giant conductance fluctuations, with amplitude much larger than $e^2/h$. This violation of one of the fundamental tenets of mesoscopic physics dramatically demonstrates how local considerations can be overwhelmed by remote signatures in phase-coherent conductors
Long-term biochar and soil organic carbon stability : evidence from field experiments in Germany
Creators: name: Gross, Arthur
name: Bromm, Tobias
name: Polifka, Steven
name: Fischer, Daniel
name: Glaser, Bruno
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2024
Subjects: subject: 550

description: Organic soil amendments (OSA) with long residence times, such as biochar, have a high potential for soil organic carbon (SOC) sequestration. The highly aromatic structure of biochar reduces microbial decomposition and explains the slow turnover of biochar, indicating long persistence in soils and thus potential SOC sequestration. However, there is a lack of data on biochar-induced SOC sequestration in the long-term and under field conditions. We sampled two long-term field experiments in Germany, where biochar was applied 12 and 14 years ago. Both locations differ in soil characteristics and in the types and amounts of biochar and other OSA. Amendments containing compost and 31.5 Mg ha−1 of biochar on a loamy soil led to a SOC stock increase of 38 Mg ha−1 after OSA addition. The additional increase is due to non-biochar co-amendments such as compost or biogas digestate. After eleven years, this SOC stock increase was still stable. High biochar amount additions of 40 Mg ha−1 combined with biogas digestate, compost or synthetic fertilizer on a sandy soil led to an increase of SOC stocks of 61 Mg ha−1; 38 Mg ha−1 dissipated in the following four years most likely due to lacking physical protection of the coarse soil material, and after nine years the biochar-amended soils showed only slightly higher SOC stocks (+7 Mg ha−1) than the control. Black carbon stocks on the same soil increased in the short- and mid-term and decreased almost to the original stock levels after nine years. Our results indicate that in most cases the long-term effect on SOC and black carbon stocks is controlled by biochar quality and amount, while non-biochar co-amendments can be neglected. This study proves that SOC sequestration through the use of biochar is possible, especially in loamy soils, while non-biochar OSA cannot sequester SOC in the long term.
Arachnodes zombitsyensis Montreuil 2011, n. sp.
Creators: name: Montreuil, Olivier
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Arachnodes
Arachnodes zombitsyensis

description: Arachnodes zombitsyensis n. sp.
 HOLOTYPE. — Madagascar Ouest. Réserve spéciale du Zombitsy, Est de Sakaraha, Matsabory, 640m, 7-10.II.1974, P. Viette & A. Peyrieras, 1 ơ (MNHN EC1908).
PARATYPES. — mêmes données que l’holotype, 14 ơơ et ♀♀ (MNHN).
ÉTYMOLOGIE. — Cette espèce est nommée d’après sa localité de capture.
DESCRIPTION
Longueur 5-6,5 mm. Noir luisant à légers reflets bleuvert sur le pronotum.Tarses, pièces buccales, pattes et côtés de la tête rougeâtres, antennes jaunâtres. Disque élytral et arrière du pronotum sub-plans, puis bien convexes sur les côtés.
 Tête
Inerme, clypéus bidenté. Côtés légèrement sinués au niveau de la suture clypéo-génale. Tégument très finement microréticulé, à ponctuation très fine, éparse, imperceptible sur les joues, le front et l’arrière du clypéus, plus forte et plus grosse sur l’avant du clypéus.
 Pronotum
Marge basale indistinctement rebordée. Marges latérales et antérieure bien rebordées. Côtés plongeant avant les angles postérieurs, vus du dessus droit dans les deux tiers postérieurs puis convergents. Angles antérieurs droits. Tégument finement microréticulé à ponctuation éparse, fine mais bien visible, bien marquée et plus grosse près de la base.
 Élytres
Stries très fines, à ponctuation peu marquée mais bien visible. Interstries finement microréticulés, avec une fine ponctuation éparse, peu visible.
  8 e tergite
Tégument finement microréticulé, à ponctuation très fine, peu visible.
 Pattes
Protibias tridentés sur l’arête externe, la dent médiane distinctement plus rapprochée de l’apicale. Face dorsale sans carène le long de la marge interne. Marge interne faiblement anguleuse avant l’apex. Angle apical interne des protibias prolongé en une forte et large saillie dirigée en avant et vers le bas. Éperon apical effilé, courbé vers l’intérieur et également dirigé vers le bas. Métatibias légèrement recourbés vers le bas.
 Édéage
Apex des paramères aplati dorso-ventralement (Fig. 3E).
Femelle similaire au mâle, à saillie de l’angle apical interne des protibias bien plus petite et à métatibias moins recourbés.
REMARQUES
 Par son système de coloration, cette espèce se rapproche d’ Arachnodes seyrigi Lebis, 1953, mais s’en distingue par la forme des paramères.
description: Published as part of Montreuil, Olivier, 2011, Monophylie du « groupe Epilissus » et refonte des genres Epilissus Reiche, 1841, Arachnodes Westwood, 1847 et Apterepilissus n. gen. de Madagascar (Insecta, Coleoptera, Scarabaeidae, Epilissini), pp. 101-122 in Zoosystema 33 (1) on page 110, DOI: 10.5252/z2011n1a5, http://zenodo.org/record/4546704
Quasi-Periodic Oscillations from Rayleigh-Taylor and Kelvin-Helmholtz Instability at a Disk-Magnetosphere Interface
Creators: name: Li, Li-Xin
name: Narayan, Ramesh
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the interface between an accretion disk and a magnetosphere surrounding the accreting mass. We argue that such an interface can occur not only with a magnetized neutron star but also sometimes with an unmagnetized neutron star or a black hole. The gas at the magnetospheric interface is generally Rayleigh-Taylor unstable and may also be Kelvin-Helmholtz unstable. Because of these instabilities, modes with low azimuthal wavenumbers m are expected to grow to large amplitude. It is proposed that the resulting nonaxisymmetric structures contribute to the high frequency quasi-periodic oscillations that have been seen in neutron-star and black-hole X-ray binaries. The mode oscillation frequencies are calculated to be approximately equal to m Ω_m, where Ω_m is the angular velocity of the accreting gas at the magnetospheric radius. Thus, mode frequencies should often be in the approximate ratio 1:2:3, etc. If the pressure of the gas in the disk is not large, then the m = 1 mode will be stable. In this case, the mode frequencies should be in the approximate ratio 2:3, etc. There is some observational evidence for such simple frequency ratios.
description: 38 pages, including 8 figures, ApJ in press
Deconfined criticality and bosonization duality in easy-plane Chern-Simons two-dimensional antiferromagnets
Creators: name: Shyta, Vira
name: Brink, Jeroen van den
name: Nogueira, Flavio S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two-dimensional quantum systems with competing orders can feature a deconfined quantum critical point, yielding a continuous phase transition that is incompatible with the Landau-Ginzburg-Wilson scenario, predicting instead a first-order phase transition. This is caused by the LGW order parameter breaking up into new elementary excitations at the critical point. Canonical candidates for deconfined quantum criticality are quantum antiferromagnets with competing magnetic orders, captured by the easy-plane CP$^1$ model. A delicate issue however is that numerics indicates the easy-plane CP$^1$ antiferromagnet to exhibit a first-order transition. Here we show that an additional topological Chern-Simons term in the action changes this picture completely in several ways. We find that the topological easy-plane antiferromagnet undergoes a second-order transition with quantized critical exponents. Further, a particle-vortex duality naturally maps the partition function of the Chern-Simons easy-plane antiferromagnet into one of massless Dirac fermions.
description: v2: published version includes Supplemental Material containing details of calculations and 4 figures; references added
Giant electron-electron scattering in the Fermi-liquid state of Na_0.7CoO_2
Creators: name: Li, S. Y.
name: Taillefer, Louis
name: Hawthorn, D. G.
name: Tanatar, M. A.
name: Paglione, Johnpierre
name: Sutherland, M.
name: Hill, R. W.
name: Wang, C. H.
name: Chen, X. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The in-plane resistivity, rho, and thermal conductivity, kappa, of a single crystal of Na_0.7CoO_2 were measured down to 40 mK. Verification of the Wiedemann-Franz law, kappa/T = L_0/rho as T -> 0, and observation of a T^2 dependence of rho at low temperature, rho = rho_0 + AT^2, establish the existence of a well-defined Fermi-liquid state. The measured value of coefficient A reveals enormous electron-electron scattering, characterized by the largest Kadowaki-Woods ratio, A/gamma^2, encountered in any material. The rapid suppression of A with magnetic field suggests a possible proximity to a magnetic quantum critical point. We also speculate on the possible role of magnetic frustration and proximity to a Mott insulator.
description: 4 pages, 4 figures; replaced with published version; added references and supporting data
Chronostratigraphische Untersuchungen (14C-Alter) an den Windablagerungen der "Towans" in der südwestenglischen Grafschaft Cornwall)
Creators: name: Siebertz, Helmut
Publisher: name: Geozon Science Media
Year: 1994

description: Zahlreiche Buchten an der Nordwest-Küste Cornwalls werden von ausgedehnten Sandstränden aufgebaut, die durch ästuarin-marine sowie fluviatile Vorgänge entstanden sind. Die Sedimente sind Verwitterungsprodukte des umliegenden pelagisch-geosynklinalen devonischen Gesteins (Abb. 1). Die litoralen Ablagerungen dienen als Liefergebiet für die großen Dünengebiete an der Küste. Zu unterscheiden sind jüngere (rezente) und ältere (fossile) Dünenablagerungen, die teils in stratigraphischer Abfolge übereinander liegen; die fossilen Dünensande lagern deckenförmig. Während die jüngeren Walldünen noch wandern. Beide Ablagerungen zeigen die für Dünensande typischen Korngrößenzusammensetzungen (etwa 70 - 95 % Mittelsand: 0.63 - 0.2 mm). Aufgrund der Winddynamik im Küstenbereich sind vereinzelt Fein(st)kiese, die im Grenzbereich der 2-mm-Korngröße liegen, als Gesteinssplitter in den Sedimenten zu finden. Die älteren Dünensande beinhalten fossile Böden; der älteste Horizont H 2 (Abb. 2) hat ein 14C-Alter von 20.300 ± 900 a B. P.: dies entspricht dem Pleniglazial der Jung-Weichselkaltzeit. Der H 4-Horizont wurde mit 13.000 ± 400 a B. P. datiert und fällt damit zeitlich in die Älteste Dryaszeit. Mit diesen Befunden lassen sich - analog zu den Untersuchungen auf dem Kontinent - ein älterer unterer sowie ein älterer oberer Flugsand sedimentologisch-pedologisch gliedern. Vergleichende Untersuchungen an europäischen Küstendünen lassen den Schluß zu, daß solch alte Windsedimente für Küstenräume die Ausnahme sind. Der H 6-Horizont (Abb. 2 ) besitzt ein 14C-Alter von 4.410 ± 70 a B. P. Dies entspricht zeitlich der späten Wärmezeit des frühen Subboreals (Mittelholozän). Dieser Flugsandabschnitt findet bisher wenig parallele Ablagerungen im Küstenraum oder auf dem Festland. Das Profil wird im Hanngenden von dem rezenten Boden abgeschlossen.
description: research
Noch einmal: Riß oder Würm?
Creators: name: Gross, Hugo
Publisher: name: Geozon Science Media
Year: 1959

description: Die nach Ausformung und Verwitterungszustand einheitliche Jungmoränen-Landschaft ist das Produkt der zweiten Hauptphase (2. Hauptvorstoß W. Soergel) der letzten Eiszeit (Würm oder Weichsel). Diese letzte Eiszeit begann nach Groninger C14-Messungen vor mehr als 64 000 Jahren (etwa um 72000 vor heute) und erreichte ihr Maximum nach 29000 (etwa um 20000) vor heute. Die Ablagerungen der mit interstadialen Unterbrechungen wohl über 50000 Jahre langen Vorrückungsphase, deren große Klimaschwankungen W. Soergel in den Lößprofilen trockener Gebiete Mitteleuropas registriert fand, liegen in den Vereisungsgebieten unter der Jungmoränen-Landschaft. Die von W. Soergel als Hauptschwankung der Würm-Vereisung bezeichnete lange, mildere, aber im Durchschnitt kühle Periode hat nach der C14-Untersuchung in Ober-Fellabrunn durch Hl. de Vries (1959) in ihrer ersten Hälfte die obere Schicht des Lösses der ersten Hauptphase (erster Hauptvorstoß, W I W. Soergel durch Verwitterung in den fossilen Fellabrunner (Stillfried A) Bodenbildungskomplex mit der Göttweiger Verlehmungszone umgewandelt, aber in ihrer offenbar sehr trockenen zweiten Hälfte, die durch die granulometrische Sedimentanalyse in Höhlen bis in ca. 2000 m Höhe nachgewiesen ist, die weitere Lößaufwehung gestattet. Pedologische, paläofloristische und paläofaunistische Befunde der Lößprofile und der nach dem archäologischen Befund gleichzeitigen Höhlensedimente beweisen einwandfrei, daß die Hauptschwankung der Würm-Vereisung ein im Durchschnitt kühles kontinentales Interstadial (Göttweiger Interstadial) mit erheblichen Temperatur-Schwankungen war. Die C14-Messungen fossiler Böden des Fellabrunner Bodenbildungskomplexes in Ober-Fellabrunn durch Hl. de Vries (1959) haben diese Auffassung bestätigt. Das Göttweiger Interstadial begann etwas vor 42000 vor heute und endete um 29000 vor heute. Würm I Soergel ist also jünger als das Riß/Würm- oder Eem-Interglazial und daher erst recht jünger als Warthe und Riß II, folglich Alt- oder Frühwürm und identisch mit der „Jungriß-Eiszeit" mancher Geologen. Nach allen neuen Klimakurven war die Würm-Eiszeit streng genommen eine einheitliche Kaltzeit mit einer längeren Unterbrechung der Löß-Bildung und -Ablagerung vor dem Maximum der letzten Vereisung.
description: research
Die frühpleistozäne Augsburger Altwasserscheide am Ostrand der Iller-Lech-Platte (süddeutsches Alpenvorland, Bayern)
Creators: name: Scheuenpflug, Lorenz
Publisher: name: Geozon Science Media
Year: 1991

description: Den Ostrand der Iller-Lech-Platte (einschließlich der Aindlinger Terrassentreppe) bildete im Ältestpleistozän (Biberkaltzeiten-Gruppe) die durchgehende Augsburger Altwasserscheide. Zu dieser Zeit muß der Ur-Lech aus dem Füssener Raum kommend nach NNE über den Schongauer Raum in Richtung Ammersee — Amper — Isar abgeflossen sein und erst später vom Schongauer Raum aus sein heutiges Tal in nördlicher Richtung geschaffen haben.
description: research
title: Great Britain Ministry of Information - Daily Press Notices and Bulletins (1944-05-09)
Creators: name: Great Britain. Ministry Of Information.
Publisher: name: The University of Texas at Austin
Year: 1944
Subjects: subject: World War, 1939-1945 – Social aspects
subject: World War, 1939-1945 -- History
subject: World War II
subject: Second World War
subject: World War Two
subject: Great Britain

description: From the UK National Archives: http://www.nationalarchives.gov.uk/theartofwar/inf3.htm “Formed on September 4th 1939, the day after Britain’s declaration of war, the Ministry of Information (MOI) was the central government department responsible for publicity and propaganda in the Second World War. The initial functions of the MOI were threefold: news and press censorship; home publicity; and oversees publicity in Allied and neutral countries”. This collection contains Press Notices and Bulletins published by the MOI between 1939-1945. The Press Notices and Bulletins are among many publications and films issued by the agency during the war.
Spiropyran as building block in peptide synthesis and modulation of photochromic properties
Creators: name: Paschold, André
name: Starke, Niclas
name: Rothemund, Sven
name: Binder, Wolfgang H.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2024
Subjects: subject: 540

description: Light-controlled triggering of materials requires efficient embedding of molecular photoswitches into larger molecules. We herein present the synthesis of two new building blocks for the synthesis of photoswitchable peptides, embedding spiropyranes as a central unit into peptide-backbones via a novel, yet unreported approach. The synthesis presented here allows us to embed spiropyranes directly into solid-phase peptide synthesis (SPPS), further describing the resulting photophysical properties of the as-prepared photoswitchable peptides.