cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Determinants of Real Exchange Rate Volatility in Nigeria
Creators: name: AJAO, Mayowa G.
name: AJAO, Mayowa G.
Publisher: name: Unknown
Year: 2016
Subjects: subject: International Relations/Trade
subject: Exchange Rate
subject: Volatility
subject: Nigeria

description: The naira exchange rate depreciation and volatility is among the vast macroeconomic maladjustments which have unfolded in the Nigerian economy in the recent past. This paper therefore, investigates the determinants of real exchange rate volatility in Nigeria from 1981 through 2008. Having obtained the volatility of exchange rate through the GARCH (1,1) techniques, the ECM was used to examine the various determinants of exchange rate volatility in Nigeria, while the co-integration analysis reveals the presence of a long term equilibrium relationship between REXRVOL and its various determinants. Our empirical analysis further shows that openness of the economy, government expenditures, interest rate movements as well as the lagged exchange rate are among the major significant variables that influence REXRVOL during this period. This study recommends that the central monetary authority should institute policies that will minimize themagnitude of exchange rate volatility while the federal government exercises control of viable macroeconomic variables which have direct influence on exchange rate fluctuation.
Bridging the ARCH model for finance and nonextensive entropy
Creators: name: Queiros, Silvio M. Duarte
name: Tsallis, Constantino
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Engle's ARCH algorithm is a generator of stochastic time series for financial returns (and similar quantities) characterized by a time-dependent variance. It involves a memory parameter $b$ ($b=0$ corresponds to {\it no memory}), and the noise is currently chosen to be Gaussian. We assume here a generalized noise, namely $q_n$-Gaussian, characterized by an index $q_{n} \in {\cal R}$ ($q_{n}=1$ recovers the Gaussian case, and $q_n>1$ corresponds to tailed distributions). We then match the second and fourth momenta of the ARCH return distribution with those associated with the $q$-Gaussian distribution obtained through optimization of the entropy $S_{q}=\frac{% 1-\sum_{i} {p_i}^q}{q-1}$, basis of nonextensive statistical mechanics. The outcome is an {\it analytic} distribution for the returns, where an unique $q\ge q_n$ corresponds to each pair $(b,q_n)$ ($q=q_n$ if $ b=0$). This distribution is compared with numerical results and appears to be remarkably precise. This system constitutes a simple, low-dimensional, dynamical mechanism which accommodates well within the current nonextensive framework.
description: 4 pages, 5 figures.Figure 4 fixed
Nonlinear Transport of Bose-Einstein Condensates Through Waveguides with Disorder
Creators: name: Paul, Tobias
name: Leboeuf, Patricio
name: Pavloff, Nicolas
name: Richter, Klaus
name: Schlagheck, Peter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the coherent flow of a guided Bose-Einstein condensate incident over a disordered region of length L. We introduce a model of disordered potential that originates from magnetic fluctuations inherent to microfabricated guides. This model allows for analytical and numerical studies of realistic transport experiments. The repulsive interaction among the condensate atoms in the beam induces different transport regimes. Below some critical interaction (or for sufficiently small L) a stationary flow is observed. In this regime, the transmission decreases exponentially with L. For strong interaction (or large L), the system displays a transition towards a time dependent flow with an algebraic decay of the time averaged transmission.
description: 15 pages, 9 figures
title: Hydrogeologische Aspekte der Entstehung und der Möglichkeit der Restitution norddeutscher Moore
title: Gewidmet dem wohlwollenden Lehrer und gütigen Freunde Prof. Dr. G. Grosse-Brauckmann † 25. April 2001
titleType: AlternativeTitle
title: Hydrogeological aspects of the origin and the possibilities of restitution of bogs in northern Germany
Creators: name: Precker, Axel
Publisher: name: FID GEO
Year: 2001

description: Hydrogeologische Untersuchungen in vier Mooren zeigen, dass sich der stark zersetzte, oligotroph-saure Eriophorum-Sphagnum-Torf — Schwarztorf — unter dem Einfluss von Grundwasser gebildet hat und nicht den Hochmoortorfen zuzurechnen ist. Das macht wahrscheinlich, dass der sogenannte „SWK“-Horizont in den Mooren die Obergrenze der Grundwasseramplitude markiert. Die Konsequenzen dieser Erkenntnisse für die Planung von Moorrestitutionen werden aufgezeigt.
description: Hydrogeological investigations in four bogs show, that the origin of highly decomposed oligotrophic-acid Eriophorum-Sphagnum-peat — the black peat — has developed under the influence of groundwater. This leads to the conclusion that black peat does not belong to raised bog peat. It appears probable, that the ,,SWK“-horizon marks the upper boundary of the groundwater amplitude. The consequences of this discovery for the planning of the restitution of bogs are shown.
description: DFG, SUB Göttingen, DGMT
description: research
Zelotes latreillei
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Gnaphosidae
Zelotes
Zelotes latreillei

description: Zelotes latreillei (Simon, 1878)
NEW DATA. — Arvier: Lago di Lolair, 1175 m, wet meadow, 14.VI-5. VII.2011, 1♀, leg. Paschetta & Giuliano; same locality, 18.VIII-16. IX.2011, 1 ♀, leg. Paschetta & Giuliano; same locality, 29.VII-18. VIII.2011, 1 ♀, leg. Paschetta & Giu–liano; Courmayeur: Val Ferret, 1630 m, shrubs, 14-28.VIII.2013, 1 ♂, leg. Negro; same locality, 28.VIII-16.IX.2013, 1 ♂ 2 ♀, leg. Negro; Verrayes: stagno di Loson, 1520 m, grove of reeds/peat bog, 13.VI-4.VII.2011, 1♂, leg. Paschetta & Giuliano (MRSN-VDA); Ayas: Antagnod, 1970- 2070 m, ski pistes, 2007, leg. Franco & Negro.
 LITERATURE.— Rossi & Arnò 1995; [Isaia 2005]; Negro et al. 2009; [Rossi & Bosio 2012].
CHOROTYPE. — SIE.
MACROHABITAT. — Wetlands, ski pistes, shrublands, alpine prairies.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on page 71, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
The Ends and the Means : Energy Mismanagement and the Fall of the Soviet Union
Creators: name: Petroff, Casey
Publisher: name: American University
Year: 2023

description: 25-page paper written for HIST-225 Russia and the Origins of Continental Eurasia (Instructor: Professor Anton Fedyashin) Spring 2010. This paper won a 2011 American University Library Undergraduate Research Award.
Der ökologische Indikatorwert mitteleuropäischer Pisidium-Arten (Mollusca, Eulamellibranchiata)
Creators: name: Meier-Brook, Claus
Publisher: name: Geozon Science Media
Year: 1975

description: Eine Kurzübersicht über bisher bekannte ökologische Valenzen und Ansprüche der rezenten Muschelarten der Gattung Pisidium C. Pfeiffer in Mitteleuropa stellt Arten mit geringem Indikatorwert (z. B. P. subtruncatum, milium) solchen mit hohem Indikatorwert (z. B. P. supinum, P. lilljehorgii) gegenüber. Die Notwendigkeit, über bloße Präsenz hinaus die Dominanzverhältnisse zu berücksichtigen, wird betont.
description: research
Tensor decomposition to Compress Convolutional Layers in Deep Learning
Creators: name: Wang, Yinan
name: Guo, Weihong "Grace"
name: Yue, Xiaowei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Feature extraction for tensor data serves as an important step in many tasks such as anomaly detection, process monitoring, image classification, and quality control. Although many methods have been proposed for tensor feature extraction, there are still two challenges that need to be addressed: 1) how to reduce the computation cost for high dimensional and large volume tensor data; 2) how to interpret the output features and evaluate their significance. {The most recent methods in deep learning, such as Convolutional Neural Network (CNN), have shown outstanding performance in analyzing tensor data, but their wide adoption is still hindered by model complexity and lack of interpretability. To fill this research gap, we propose to use CP-decomposition to approximately compress the convolutional layer (CPAC-Conv layer) in deep learning. The contributions of our work could be summarized into three aspects: (1) we adapt CP-decomposition to compress convolutional kernels and derive the expressions of both forward and backward propagations for our proposed CPAC-Conv layer; (2) compared with the original convolutional layer, the proposed CPAC-Conv layer can reduce the number of parameters without decaying prediction performance. It can combine with other layers to build novel deep Neural Networks; (3) the value of decomposed kernels indicates the significance of the corresponding feature map, which provides us with insights to guide feature selection.
description: 35 pages, IISE Transactions
Scale Invariance without Inflation?
Creators: name: Armendariz-Picon, C.
name: Lim, Eugene A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a new alternative mechanism to seed a scale invariant spectrum of primordial density perturbations that does not rely on inflation. In our scenario, a perfect fluid dominates the early stages of an expanding, non-inflating universe. Because the speed of sound of the fluid decays, perturbations are left frozen behind the sound horizon, with a spectral index that depends on the fluid equation of state. We explore here a toy model that realizes this idea. Although the model can explain an adiabatic, Gaussian, scale invariant spectrum of primordial perturbations, it turns out that in its simplest form it cannot account for the observed amplitude of the primordial density perturbations.
description: 6 two-column pages, 1 figure. Uses RevTeX4. v2: References added and number of required e-folds refined
The Ends and the Means : Energy Mismanagement and the Fall of the Soviet Union
Creators: name: Petroff, Casey
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 4303
subject: Historical studies

description: 25-page paper written for HIST-225 Russia and the Origins of Continental Eurasia (Instructor: Professor Anton Fedyashin) Spring 2010. This paper won a 2011 American University Library Undergraduate Research Award.
Geröllanalytische Gliederung der pleistozänen Kiessande nordwestlich von Hannover
Creators: name: Jordan, Heinz
name: Voss, Horst-Hermann
Publisher: name: Geozon Science Media
Year: 1978

description: Die spätelster- bis drenthezeitlichen Kiessande des Steinhuder Meer-Raumes wurden statistisch auf ihren Geröllbestand (Fraktion 6,3—12,5 mm) untersucht. In zwei Tiefenbereichen wurde das Verhältnis von nordischen zu paläozoisch-einheimischen Geröllen ausgewertet. Die nordischen sind vom Inlandeis und dessen Schmelzwässern geschüttet, die paläozoischeinheimischen von Flüssen aus dem S angeliefert. Der einheimische Kies-Anteil ließ sich nach dem Flammenmergel- und Buntsandstein-Gehalt dem Flußsystem der Weser bzw. der Leine zuordnen. Nach der Geröllanalyse hat der spätelsterzeitliche Kiessand altpleistozäne Rinnen endgültig verfüllt. Im oberen, drenthezeitlichen Abschnitt läßt sich die Vermischung und Verzahnung der nordischen Schmelzwassersande mit den von Süden geschütteten Leine-Kiessanden quantitativ belegen (Abb. 7). Der nordische Kiessand enthält Schollen und Beimengungen von Oberterrassenkies der Weser. Die Ergebnisse werden mit früheren geröllanalytischen Untersuchungen im Raum Hannover vergleichen, und daraus neue Hinweise zur Flußgeschichte der (unteren) Leine gewonnen.
description: research
Additional file 1 of Correlation of patient-reported numbness around surgical scars with patient-reported outcome measures and joint awareness after knee replacement: a cohort study
Creators: name: Itoh, Masafumi
name: Itou, Junya
name: Kuwashima, Umito
name: Okazaki, Ken
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1.
Electron Dephasing in Mesoscopic Metal Wires
Creators: name: Birge, Norman O.
name: Pierre, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The low-temperature behavior of the electron phase coherence time, $τ_ϕ$, in mesoscopic metal wires has been a subject of controversy recently. Whereas theory predicts that $τ_ϕ(T)$ in narrow wires should increase as $T^{-2/3}$ as the temperature $T$ is lowered, many samples exhibit a saturation of $τ_ϕ$ below about 1 K. We review here the experiments we have performed recently to address this issue. In particular we emphasize that in sufficiently pure Ag and Au samples we observe no saturation of $τ_ϕ$ down to our base temperature of 40 mK. In addition, the measured magnitude of $τ_ϕ$ is in excellent quantitative agreement with the prediction of the perturbative theory of Altshuler, Aronov and Khmelnitskii. We discuss possible explanations why saturation of $τ_ϕ$ is observed in many other samples measured in our laboratory and elsewhere, and answer the criticisms raised recently by Mohanty and Webb regarding our work.
description: 14 pages, 3 figures; to appear in proceedings of conference "Fundamental Problems of Mesoscopic Physics", Granada, Spain, 6-11 September, 2003
title: Identity and acceptance of mental health problems and related disabilities in individuals with severe and enduring mental health problems
Creators: name: Macnamara, Joanna C.
Publisher: name: The Open University
Year: 2001

description: The research literature proposes that the concept of identity may be central to understanding responses to having severe and enduring mental health problems. Theorists hypothesise a relationship between identity and the individual's acceptance of having mental health problems mediated by societal pressures. Given the inconclusive findings from research carried out a decade ago, this study has attempted to explore whether the participants' identification as a community member or patient affected, or was affected by, their belief that they have mental health problems, need medication, need to see healthcare professionals and their awareness of disabilities. A quantitative methodology was employed to examine the main variables. Forty five individuals living in the community with a diagnosis of schizophrenia, bipolar affective disorder or schizoaffective disorder were interviewed. Both within-group and between-group analyses were employed. The relationship between the independent variables and their relationships with sociodemographic and diagnostic factors, self-esteem and health and social functioning were explored. Measures that had been either standardised or used in previous related research were employed. The three central measures were taken from previous research studies in this area. Socio-demographic information was obtained from clinical files. Neither beliefs about mental health problems nor awareness of disabilities were found to be associated with identity, as measured in this study. Health and social functioning and work-related variables appeared to contribute to an identification as a community member. It is suggested that defensive responses to disabilities existed to protect the individual's sense of self-worth. Furthermore, socially valued experiences prior to illness and level of ability may have contributed to the participants' identification as a community member. The clinical implications are discussed.
Low temperature fullerene encapsulation in single wall carbon nanotubes: synthesis of N@C$_{60}$@SWCNT
Creators: name: Simon, F.
name: Kuzmany, H.
name: Rauf, H.
name: Pichler, T.
name: Bernardi, J.
name: Peterlik, H.
name: Korecz, L.
name: Fülöp, F.
name: Jánossy, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High filling of single wall carbon nanotubes (SWCNT) with C$_{60}$ and C$_{70}$ fullerenes in solvent is reported at temperatures as low as 69 $^{o}$C. A 2 hour long refluxing in n-hexane of the mixture of the fullerene and SWCNT results in a high yield of C$_{60}$,C$_{70}$@SWCNT, fullerene peapod, material. The peapod filling is characterized by TEM, Raman and electron energy loss spectroscopy and X-ray scattering. We applied the method to synthesize the temperature sensitive (N@C$_{60}$:C$_{60}$)@SWCNT as proved by electron spin resonance spectroscopy. The solvent prepared peapod samples can be transformed to double walled nanotubes enabling a high yield and industrially scalable production of DWCNT.
Inachidae MacLeay 1838
Creators: name: Carmona-Suárez, Carlos
name: Poupin, Joseph
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Inachidae

description: Family INACHIDAE MacLeay, 1838   Coryrhynchus algicola Stebbing, 1914 (Fig. 2L)
 Coryrhynchus algicola Stebbing, 1914: 259 (type locality: off the coast of Brazil).
 MATERIAL EXAMINED. — Guadeloupe. KARUBENTHOS 2012, 1♂ MNHN-IU-2013-4066 (lot JL827), st. GR 27, 8 m.
 DIAGNOSIS. — Allied to Coryrhynchus riisei (see under that species). Rostrum short, broadly rounded. A pair of tubercles on surface of carapace between eyes. Edges of fingers (of female) crenulate, not denticulate. Ventral concave surface of first antennal article acute at distal end, broadly triangular.
HABITAT. — On rocky sublittoral with sessile epifauna. Collected 8 m, reported to 66 m.
 DISTRIBUTION (Almeida & Coehlo 2008; Coelho et al. 2008). — Western Atlantic. Colombia, Brazil (from Maranhão to São Paulo). Lesser Antilles ICA (Guadeloupe).
REMARK
First record for Guadeloupe and for Lesser Antilles.
description: Published as part of Carmona-Suárez, Carlos & Poupin, Joseph, 2016, Majoidea crabs from Guadeloupe Island, with a documented list of species for the Lesser Antilles (Crustacea, Decapoda, Brachyura, Majoidea), pp. 353-387 in Zoosystema 38 (3) on pages 361-362, DOI: 10.5252/z2016n3a5, http://zenodo.org/record/4578244
Reproductive Biology of Invertebrates - 1. Crustacea-Decapoda (AU CAS)
Creators: name: Tudge, Christopher
name: Jamieson, Barrie G.M.
Publisher: name: American University
Year: 2023

description: 97-page pdf. This article is from Volume IX, Part C Progress in Male Gamete Ultrastructure and Phylogeny of the series Reproductive Biology of Invertebrates published by John Wiley and Sons, Ltd. The series was edited by K.G. and Rita G. Adiyodi and the volume edited by B.G.M. Jamieson.
A wild horse (Equus przewalskii POLIAKOV 1881) of Mesolithic age from Kempen (Germany, Northrhine-Westfalia, Lippe County)
Creators: name: Springhorn, Rainer
Publisher: name: Geozon Science Media
Year: 2003

description: Es wird neues Skelettmaterial eines Wildpferd-Individuums Equus przewalskii Poliakov 1881 aus Kempen (Stadt Horn-Bad Meinberg, Ostwestfalen, Deutschland) vorgestellt. Seine Lage im Sediment unmittelbar neben Flintabschlägen der Mittelsteinzeit legen ein entsprechendes Alter von 10.000-7.000 Jahren vor der Gegenwart nahe. Der Abkauungsgrad der Zähne ergibt ein Individualalter von wenigstens 19 Jahren. Ein kräftiger unterer Caninus beweist, dass es sich um einen Hengst handelt. Die Existenz eines vierten Molaren in beiden Unterkieferhälften ist außergewöhnlich und wird als genetisch bedingte Abnormität gewertet. Im Vergleich mit bereits publizierten Pferden aus historischer Zeit von anderen ostwestfälischen Fundorten sind die unteren Prämolaren und ersten unteren Molaren deutlich länger und breiter (4-10%). Analog hierzu ist die Kaufläche insgesamt größer. Dies ist deshalb bedeutsam, weil die Maße der Extremitätenknochen eine Widerristhöhe von 129-142 cm ergeben, die den Kategorien „kleinwüchsig" bis „mittelwüchsig" (Vitt 1952) entsprechen, die sowohl dem mittelsteinzeitlichen Kempener Pferd als auch den Pferden historischen Alters anderer Lokalitäten in Ostwestfalen zugeordnet werden können.
description: research
Reproductive Biology of Invertebrates - 1. Crustacea-Decapoda (AU CAS)
Creators: name: Tudge, Christopher
name: Jamieson, Barrie G.M.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences

description: 97-page pdf. This article is from Volume IX, Part C Progress in Male Gamete Ultrastructure and Phylogeny of the series Reproductive Biology of Invertebrates published by John Wiley and Sons, Ltd. The series was edited by K.G. and Rita G. Adiyodi and the volume edited by B.G.M. Jamieson.
Expectations for the confirmation of Proxima c from a long-term radial velocity follow-up
Creators: name: Damasso, Mario
name: Del Sordo, Fabio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Proxima c, a candidate second planet orbiting Proxima Centauri, was detected with the radial velocity method. The announced long orbital period (5.21$^{+0.26}_{-0.22}$ years), and small semi-amplitude of the induced Doppler signal (1.2$\pm$0.4 m/s), make this detection challenging and the target worthy of a follow-up in the next years. We intend to evaluate the impact of future data on the statistical significance of the detection through realistic simulated radial velocities to be added to the published dataset, spanning up to one orbital period of Proxima c in the time range 2019-2023. We find that the detection significance of Proxima c increases depending not only on the amount of data collected, but also on the number of instruments used, and especially on the timespan covered by the observational campaign. However, on average we do not get strong statistical evidence and we predict that, in the best-case scenario, in the next 5 years the detection of Proxima c can become significant at 4$σ$ level. If instead Proxima c does not exist, the detected signal may lower its significance down to 2$σ$.
description: Accepted for publication in MNRAS, 2020
Additional file 1 of Mechanical power in pediatric acute respiratory distress syndrome: a PARDIE study
Creators: name: Bhalla, Anoopindar K.
name: Klein, Margaret J.
name: Modesto I Alapont, Vicent
name: Emeriaud, Guillaume
name: Kneyber, Martin C. J.
name: Medina, Alberto
name: Cruces, Pablo
name: Diaz, Franco
name: Takeuchi, Muneyuki
name: Maddux, Aline B.
name: Mourani, Peter M.
name: Camilo, Cristina
name: White, Benjamin R.
name: Yehya, Nadir
name: Pappachan, John
name: Di Nardo, Matteo
name: Shein, Steven
name: Newth, Christopher
name: Khemani, Robinder
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Table S1: Multivariable Analysis for Secondary Outcomes of 28-day VFD (IMV and NIV) and Time to Extubation in Survivors. Table S2: Propensity Score Multivariable Model for Use of High Mechanical Power (≥ 0.62 J min−1 Kg−1 predicted body weight). Table S3: Additional Sensitivity Analyses Limited to the Subgroup of Children <2 years of Age. Table S4: Multivariable models for the Association between Mechanical Energy and 28-day Ventilator-Free Days and Mortality. Table S5: The Univariable Association between each Ventilation Management Component of Mechanical Power and 28-day Ventilator-Free Days. Table S6: Multivariable Model for 28-day Ventilator-Free Days considering all Ventilator Management Components of Mechanical Power (with Delta Pressure) (n = 304). Table S7: Multivariable Model for 28-day Ventilator-Free Days considering all Ventilator Management Components of Mechanical Power (with Peak Inspiratory Pressure) (n=304). Table S8: Structural Equation Modeling. Figure S1: Distribution of Propensity Scores
Analysis Of Measured Transport Properties Of Domain Walls In Magnetic Nanowires And Films
Creators: name: Berger, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Existing data for soft magnetic materials of critical current for domain-wall motion, wall speed driven by a magnetic field, and wall electrical resistance, show that all three observable properties are related through a single parameter: the wall mobility $μ$. The reciprocal of $μ$ represents the strength of viscous friction between domain wall and conduction-electron gas. And $μ$ is a function of the wall width, which depends in turn on the aspect ratio t/w, where t and w are the thickness and width of the sample. Over four orders of magnitude of $μ$, the data for nanowires show $μ\propto (t/w)^{-2.2}$. This dependence is in approximate agreement with the prediction of the 1984 Berger theory based on s-d exchange. On the other hand, it is inconsistent with the prediction of the 2004 Tatara and Kohno theory, and of the 2004 Zhang and Li theory.
description: 7 pages, 1 figure; submitted to Phys. Rev. B
The Determinants of Agricultural Productivity and Rural Household Income in Ethiopia
Creators: name: Tessema Urgessa
name: Tessema Urgessa
Publisher: name: Unknown
Year: 2016
Subjects: subject: Consumer/Household Economics
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Productivity Analysis
subject: Labor productivity
subject: Land productivity
subject: Rural household income
subject: Rural household panel data

description: This paper aims at investigating the determinants of agricultural productivity and rural household income in Ethiopia. Three econometric models namely: Pooled ordinary least square (POLS), fixed effects (FE) and random effects (RE) model were used to examine the relationship between productivity and income; using Ethiopian socio-economic survey of 2011/12 and 2013/14 data, collected by CSA of Ethiopia in collaboration with the World Bank. Results showed that, Land-labor ratio, use of fertilizer, use of pesticide, manure and household size are found to be the most significant variables that affect agricultural labor and land productivity. However, drought has statistically significant and has negative effect on both labor and land productivity by the same magnitude. Labor productivity, non-farm income and land productivity are found to be the most determinants of household income. However, number of dependency ratio is significantly and negatively affects the rural household income. Sex of the household head is the main socio-economic factor for the variation of income among the rural households. The study also concludes that, Labor productivity is the most potent for factor of production and rural household income enhancement. The policy implication of the study is that, increasing land-labor ratio is important for agricultural productivity enhancement and promotion of both farm labor and non-farm income are best focusing to speed up for the enhancement of rural household income
description: and Rural Household Income in Ethiopia
Modeling the fringe field of permanent magnet multipoles using numerical simulations
Creators: name: Thuillier, Thomas
name: Andre, Thomas
name: Mendez-Giono, Jose-Antonio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Permanent Magnet multipoles (PMM) are widely used in accelerators to either focus particle beams or confine plasma in ion sources. The real magnetic field created by PMM is calculated by magnetic field simulation software and then used in particle tracking codes by means of 3 dimensional magnetic field map. A common alternative is to use the so-called 'hard edge' model, which gives an approximation of the magnetic field inside the PMM assuming a null fringe field. This work proposes an investigation of the PMM fringe field properties. An analytical model of PMM magnetic field is developed using the Fourier multipole expansion. A general axial potential function with a unique parameter $λ$, able to reproduce the actual PMM magnetic field (including its two fringe fields) with an explicit dependence on the PMM length is proposed. An analytical first order model including the axial fringe field is derived. This simple model complies with the Maxwell equations (curl(B)=0 and div(B)=0) and can replace advantageously the 'hard edge' model when fast analytical calculation are required. Higher order analytical multipole expansion model quality is assessed by means of ${χ^2}$ estimators. The general dependence of the potential function parameter $λ$ is given as a function of the PMM geometry for quadrupole, hexapole and multipole, allowing to use the developed model in simulation programs where the multipole geometry is an input parameter.
description: 7 pages
Growth of Youth-owned MSEs in Ethiopia: Characteristics, Determinants and Challenges
Creators: name: Wolday Amha
name: Wolday Amha
Publisher: name: Unknown
Year: 2016
Subjects: subject: Industrial Organization
subject: Micro and Small Enterprises (MSEs)
subject: Growth-firms

description: The study examines the factors that influence the growth of youth-owned MSEs in Ethiopia using a sample survey of 909 operators which were selected through a multi-stage random sampling techniques. The result of the cross-tabulated descriptive statistics showed that the personal attributes, firm characteristics, inter-firm cooperation and policy predictability affected the growth of the MSE operators. Growth rate was also influenced by the diverse and heterogeneous character of the youth-owned MSEs. Unlike many other studies, the findings of this study reveal that the average growth rates of microenterprises are much lower than the small enterprises. Female-owned firms registered relatively lower growth rate compared to their male counterpart. The results obtained from the regression indicate that among the personal attributes of youth MSE owners: education, sole ownership form of business organization, small enterprise category, experience in similar business, and gender (male MSE owners) are significant variables which positively influence the growth of the youth operators. Out of the firm-level attributes, access to training before starting business, social networking and access to loan are statistically significant variables which negatively affect growth rate. On the other hand, access to product markets, future plan of the enterprises, saving culture, size of start-up capital and current capital are found as significant variables influencing the growth of youth-owned MSEs. The predictability of policies and inter-firm cooperation are also found to be significant variables affecting growth and expansion of youth-owned MSEs. Since the growth rate of micro enterprises and women-owned enterprises are lower, the study suggests revisiting the current support program by crafting tailored interventions. Moreover, although inter-firm cooperation and policy predictability affect the growth of youth-owned MSEs, due focus should be given to improve social networking and building the trust and confidence of the operators on government policies and strategies.
description: : Characteristics, Determinants and Challenges1
Die Schädelkalotte des Neanderthalers von Ochtendung/Osteifel - Archäologie, Paläoanthropologie und Geologie
Creators: name: Berg, Axel Von
name: Condemi, Silvana
name: Frechen, Manfred
Publisher: name: Geozon Science Media
Year: 2000

description: In der Osteifel wurde in den Deckschichten einer Kratermulde der Wannenköpfe-Vulkangruppe bei Ochtendung die Schädelkalotte eines Hominiden im Zusammenhang mit drei Steinartefakten gefunden. Aufgrund der anatomischen Merkmale werden die Hominidenreste als „spät"-prä-Neanderthalzeitlich interpretiert. Die geologischen, chronologischen und archäologischen Befunde sowie die anatomischen Merkmale der Schädelkalotte unterstützen die stratigraphische Einstufung in das Frühglazial der vorletzten Kaltzeit (frühes Sauerstoff-Isotopenstadium 6). Die Schädelkalotte stellt den bisher ältesten Fund von Hominiclenresten im Rheinland dar.
description: research
Single versus Multiple Objective(s) Decision Making: An Application to Subsistence Farms in Northern Ethiopia
Creators: name: Zenebe Gebreegziabher
name: Kooten, G. Cornelis Van
name: Zenebe Gebreegziabher
name: Kooten, G. Cornelis Van
Publisher: name: Unknown
Year: 2016
Subjects: subject: Farm Management
subject: Single versus Multiple Criteria/Objectives
subject: Linear Programming, Goal
subject: Programming
subject: Subsistence Farms
subject: Northern Ethiopia.

description: Single objective approach is most widely used whereas consideration of multiple objectives is the rule rather than an exception in many real life decision-making circumstances. This paper, therefore, investigates whether or not single and multiple criteria/objective approaches necessarily lead to differing conclusions. The central questions are could the single objective approach be a reasonable approximation for subsistence farm settings or does the multiple objectives approach has anything to add? Does the pattern of resource allocation change when priorities attached to the different objectives/ goals change? The study employs linear and goal programming techniques on a data set from a stratified sample of 200 farm households drawn from Tigrai regional state, Northern Ethiopia, for 2001 and 2002 production years. Findings reveal that the two approaches might not necessarily lead to differing conclusions.
description: Zeneb and Single versus Multiple Objective(s) Decision Making: An Application to Subsistence Farms in Northern Ethiopia
Broad spectrum micronutrient formulas for the treatment of symptoms of depression, stress, and/or anxiety: a systematic review
Creators: name: Blampied, Meredith
name: Bell, Caroline
name: Gilbert, Claire
name: Rucklidge, Julia J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Introduction: Vitamin and mineral nutritional supplements are becoming increasingly popular as alternative treatments for anxiety and depression, as issues such as side effects from medication, failure to respond to psychotherapy and workforce limitations pose barriers for successful treatment. Areas covered: This review covered double-blind, randomized controlled trials (DBRCTs) testing formulas including at least four vitamins and/or minerals used for the treatment of symptoms of anxiety, stress, or depression in adults not currently taking medication for psychiatric difficulties. Expert opinion: The majority of the 23 trials reviewed were conducted on people without psychological difficulties, limiting the generalizability of the results in people with diagnosed mood and anxiety difficulties. Sixteen studies demonstrated positive effects for symptoms of anxiety, depression, or stress. Micronutrient supplementation in healthy nonclinical adults has limited benefits for mood and anxiety symptoms, although may convey some subtle general improvements. The evidence for adults with physical or mental ill health is more positive although limited by small samples and variability in nutrients studied. Broad-spectrum nutrient products may be more effective than a selected few. While an effect of micronutrients cannot be dismissed, the variability of the studies makes it extremely challenging to identify specific treatment benefits.
Stenocionops furcatus
Creators: name: Carmona-Suárez, Carlos
name: Poupin, Joseph
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Majidae
Stenocionops
Stenocionops furcatus

description: Stenocionops furcatus (Olivier, 1791)
 Cancer furcatus Olivier, 1791: 135.
 Stenocionops furcata – Rathbun 1925: 449 (St Thomas, Dominica, Barbados).
DISTRIBUTION. — Western Atlantic, 2- 180 m.
description: Published as part of Carmona-Suárez, Carlos & Poupin, Joseph, 2016, Majoidea crabs from Guadeloupe Island, with a documented list of species for the Lesser Antilles (Crustacea, Decapoda, Brachyura, Majoidea), pp. 353-387 in Zoosystema 38 (3) on page 385, DOI: 10.5252/z2016n3a5, http://zenodo.org/record/4578244
Normalograptus kufraensis, a new species of graptolite from the western margin of the Kufra Basin, Libya
Creators: name: Page, Alex
name: Meinhold, Guido
name: Le Heron, Daniel P.
name: Elgadry, Mohamed
Publisher: name: FID GEO
Year: 2013

description: Normalograptus kufraensis sp. nov. occurs as monospecific assemblages in the Tanezzuft Formation at the western margin of the Kufra Basin (Jabal Eghei), southern Libya. These graptolites have parallel-sided rhabdosomes with long, straight virgellae, climacograptid thecae and a full straight median septum. N. kufraensis is intermediate between Ordovician graptolites from the N. angustus (Perner) lineage and the younger sister species N. ajjeri (Legrand) and N. arrikini Legrand. N. kufraensis differs from these taxa as follows: it is broader than N. angustus; it has greater thecal spacing than N. ajjeri or N. arrikini. A table comparing measurements of N. kufraensis with 44 other Normalograptus taxa differentiates it from other members of this morphologically conservative group. Even though N. angustus and N. ajjeri are very long-ranging graptolites, a stratophenetic approach suggests that the specimens from Jabal Eghei may be of late Hirnantian or younger age. The faunal composition and preservation suggests these graptolites occupied the ‘cratonic invader’ biotope. The stratigraphic succession records deglacial flooding and fluctuating of redox in the Tanezzuft Formation, with the graptolites indicating a short-lived interval of anoxia.
Additional file 1 of The development and validation of a questionnaire to explore medical students’ learning in a blended learning environment
Creators: name: Ballouk, Rouba
name: Mansour, Victoria
name: Dalziel, Bronwen
name: Hegazi, Iman
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1.
A max-plus finite element method for solving finite horizon deterministic optimal control problems
Creators: name: Akian, Marianne
name: Gaubert, Stephane
name: Lakhoua, Asma
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optimization and Control (math.OC)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 49L20 (Primary); 65M60, 06A15, 12K10 (Secondary)

description: We introduce a max-plus analogue of the Petrov-Galerkin finite element method, to solve finite horizon deterministic optimal control problems. The method relies on a max-plus variational formulation, and exploits the properties of projectors on max-plus semimodules. We obtain a nonlinear discretized semigroup, corresponding to a zero-sum two players game. We give an error estimate of order $(Δt)^{1/2}+Δx(Δt)^{-1}$, for a subclass of problems in dimension 1. We compare our method with a max-plus based discretization method previously introduced by Fleming and McEneaney.
description: 13 pages, 5 figures
Sedimente und Ablagerungsmechanismen in instabilen proglaziären Seen (Eisrandstauseen) in Westgrönland
Creators: name: Scholz, Herbert
Publisher: name: Geozon Science Media
Year: 1997

description: Am Rande des grönländischen Inlandeises bei Søndre Strømfjord ist eine ganze Reihe von Eisrandstauseen mit instabilen Wasserständen zu finden. Sie neigen dazu, sieh von Zeit zu Zeit unter das Eis hinein zu entleeren. Die Sedimente am Boden der ausgelaufenen Seebecken können ohne technischen Aufwand untersucht werden. 7 solcher Seen, von denen 3 im Sommer 1993 ausgelaufen waren, konnten im Rahmen eines von der DFG geförderten Projektes eingehender untersucht werden. Die Seefüllungen bestehen demnach vor allem aus locker gelagerten Diamikten, bei denen es sich größtenteils um die Sedimentfracht von Eisbergen handeln dürfte. Daneben spielen Delta- und Schwemmfächersedimente sowie Rutschmassen, die von den Flanken der Seebecken stammen, eine wichtge Rolle. Feinkörnige Seesedimente, wie man sie in eisrandnahen Seen eigentlich erwarten würde, treten demgegenüber stark in den Hintergrund. Sedimentfüllungen von derartigen instabilen Seen weichen also offensichtlich von gewöhnlichen, bisher bekannten glazilakustrinen Schichtfolgen stark ab. Fossile Ablagerungen aus derartigen Seen, die am Rande des nordeuropäischen Inlandeises oder der alpinen Vorlandgletscher nicht seltener gewesen sein dürften als im heutigen Grönland, sollten aufgrund der vorliegenden Untersuchungen in Zukunft leicht zu erkennen sein.
description: research
Growth Potential and Business Constraints of Micro and Small Enterprises in South Wollo Zone, Amhara Region, Ethiopia
Creators: name: Addisu Molla
name: Addisu Molla
Publisher: name: Unknown
Year: 2017
Subjects: subject: Industrial Organization
subject: business constraints
subject: growth potential
subject: MSEs
subject: south wollo

description: In Micro and Small Enterprises (MSE) sector a thorough examination of factors that constrain enterprises growth is critical to the survival and growth of the enterprises. This paper, therefore, utilized the data collected on 224 MSEs in south Wollo zone of Amhara Region, Ethiopia to analyze the extent to which the growth of MSEs is linked with the constraints. Three sets of models were employed. The MSEs employment growth was significantly and negatively affected by limited access to finance, limited access to business services, and limited access to market. In addition, limited access to premises, limited access to finance and limited access to business services were significantly and negatively affect the operators’ perception on growth potential of enterprises income. Therefore, the results highlight that the growth of MSEs are highly influenced by accesses of productive resources and assets. The analysis and findings, on the other hand, should help to professionals in such field of study. On the other hand, it should help shed some light for policy makers and anyone else who may have a stake on the small business development as a positive knock on effect for growth of MSEs.
The effect of diffusive nuclear burning in neutron star envelopes on cooling in accreting systems
Creators: name: Wijngaarden, M. J. P
name: Ho, Wynn C. G.
name: Chang, Philip
name: Page, Dany
name: Wijnands, Rudy
name: Ootes, Laura S.
name: Cumming, Andrew
name: Degenaar, Nathalie
name: Beznogov, Mikhail
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Valuable information about the neutron star interior can be obtained by comparing observations of thermal radiation from a cooling neutron star crust with theoretical models. Nuclear burning of lighter elements that diffuse to deeper layers of the envelope can alter the relation between surface and interior temperatures and can change the chemical composition over time. We calculate new temperature relations and consider two effects of diffusive nuclear burning (DNB) for H-C envelopes. First, we consider the effect of a changing envelope composition and find that hydrogen is consumed on short timescales and our temperature evolution simulations correspond to those of a hydrogen-poor envelope within ~100 days. The transition from a hydrogen-rich to a hydrogen-poor envelope is potentially observable in accreting NS systems as an additional initial decline in surface temperature at early times after the outburst. Second, we find that DNB can produce a non-negligible heat flux, such that the total luminosity can be dominated by DNB in the envelope rather than heat from the deep interior. However, without continual accretion, heating by DNB in H-C envelopes is only relevant for <1-80 days after the end of an accretion outburst, as the amount of light elements is rapidly depleted. Comparison to crust cooling data shows that DNB does not remove the need for an additional shallow heating source. We conclude that solving the time-dependent equations of the burning region in the envelope self-consistently in thermal evolution models instead of using static temperature relations would be valuable in future cooling studies.
description: 10 pages, 10 figures; Published in MNRAS
Impacts of Smallholder Tree Plantation in Amhara Region of Ethiopia: The Case of Lay Gayint and Fagta Locuma Districts
Creators: name: Fentahun Addis
name: Surafel Melak
name: Berihun Tefera
name: Habtemariam Kassa
name: Fentahun Addis
name: Surafel Melak
name: Berihun Tefera
name: Habtemariam Kassa
Publisher: name: Unknown
Year: 2017
Subjects: subject: Crop Production/Industries
subject: Farm Management
subject: Marketing
subject: FOS: Economics and business
subject: Firm
subject: growth
subject: grain traders
subject: Ethiopia

description: In this paper we consider the microeconomics evidence on the determinants of firm performance in Ethiopia, with a focus on grain traders. We analyse both internal and external factors, and the relative impacts of these factors on the performance of grain traders. Different economic indicators seem to suggest that grain traders have become increasingly unviable as reflected by absence or stagnation of growth. These firms suffer from a host of internal problems (e.g. weak human resources and other assets) and of external factors such as access to credit, market facilities, policy and regulatory framework, etc.). Hence without renewed focus on promoting firm growth, especially grain traders through improving access to warehouses, relaxing credit constraints, and improving the macroeconomic and regulatory environment, not only grain traders but also rural and urban households will face a very uncertain and untenable future which will hamper the performance of grain markets and the battle against poverty and food insecurity.
description: Fentahun, Surafel, Berihun and Habtemariam_Impacts of Smallholder Tree Plantation in Amhara Region of Ethiopia: The Case of Lay Gayint and Fagta Locuma Districts