cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 3 of Sonic hedgehog signalling as a potential endobronchial biomarker in COPD
Creators: name: Ancel, Julien
name: Belgacemi, Randa
name: Jeanne-Marie Perotin
name: Zania Diabasana
name: Dury, Sandra
name: Dewolf, Maxime
name: Bonnomet, Arnaud
name: Lalun, Nathalie
name: Birembaut, Philippe
name: Polette, Myriam
name: Deslée, Gaëtan
name: Dormoy, Valérian
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 3: Table S3. Baseline characteristics of the population who underwent broncho-alveolar lavages.
P. Naqlun inv. 10/95 und seine Bedeutung für die Pflege des Griechischen in der Liturgie der koptischen Kirche
Creators: name: Budde, Achim
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 86 (2002): Oriens christianus, Band 86
Trade and Welfare Effects of State Trading Enterprises
Creators: name: McCorriston, Steve
name: MacLaren, Donald
name: McCorriston, Steve
name: MacLaren, Donald
Publisher: name: Unknown
Year: 2005
Subjects: subject: International Relations/Trade
subject: state trading enterprises
subject: trade negotiations

description: Much of the analysis of market access issues in the Doha Round negotiations involves clearly defined instruments of government policy covering inter alia subsidies, tariffs and tariff rate quotas. State trading enterprises are also on the negotiating agenda though there is comparatively little analysis of their impact on trade and welfare despite the fact that they will be addressed in the forthcoming negotiations. This paper addresses these issues and highlights that STEs both distort trade and reduce welfare. The extent of these effects depend not only on the monopoly/monopsony status of the enterprises but the nature of the pay-off function.
Student understanding of rotational and rolling motion concepts
Creators: name: Rimoldini, Lorenzo G.
name: Singh, Chandralekha
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We investigated the common difficulties that students have with concepts related to rotational and rolling motion covered in the introductory physics courses. We compared the performance of calculus- and algebra-based introductory physics students with physics juniors who had learned rotational and rolling motion concepts in an intermediate level mechanics course. Interviews were conducted with six physics juniors and ten introductory students using demonstration-based tasks. We also administered free-response and multiple-choice questions to a large number of students enrolled in introductory physics courses, and interviewed six additional introductory students on the test questions (during the test design phase). All students showed similar difficulties regardless of their background, and higher mathematical sophistication did not seem to help acquire a deeper understanding. We found that some difficulties were due to related difficulties with linear motion, while others were tied specifically to the more intricate nature of rotational and rolling motion.
description: 23 pages, 3 figures, 2 tables; it includes a multiple-choice test (in Appendix B)
A study of protein surface hydrophobicity and structure-function analysis of proteins in spray dried egg albumen
Creators: name: Cheng, Eugene S. Y.
Publisher: name: University of British Columbia
Year: 2009

description: In examining functional properties of food proteins, the ultimate goal of all researchers is to understand basic information relating functional properties to particular conformational or structural features of the protein. It is generally accepted that the molecular property of hydrophobicity plays an important role in the function of food proteins. In the first part of the thesis, surface hydrophobicity (S₀) of 10 proteins, under varying conditions of pH (3.0, 7.0, and 9.0) and salt concentrations (0.01 and 1.0 M NaCl), measured using an uncharged fluorescent probe, PRODAN (6-propionyl-2- (dimethylamino)naphthalene) was compared with S₀ determined with an anionic probe, ANS (l-anilinonaphthalene-8- sulfonate). S₀ values measured by both PRODAN and ANS for each protein were statistically different (P < 0.05) as a function of pH and salt concentration. Overall, lowest S₀ values using PRODAN were found at pH 3.0, while S₀ values using ANS were generally higher at acidic than neutral or alkaline pH. These results demonstrate the need to consider charged probeprotein interactions when applying anionic fluorescent probes for surface hydrophobicity quantification. In the second part of the thesis, the structure-function relationships of spray dried egg albumen and its functional properties (e.g. gelation and foaming properties) were investigated. Protein structure was evaluated by measurement of surface hydrophobicity, net charge as zeta potential (ZP), sulfhydryl (SH) and disulfide (SS) groups, and by differential scanning calorimetry. Simple linear correlations were performed to better understand the structure-function relationship between structural parameters and functionality (gel strength and foam volume). In general, gel strength was positively correlated with S₀ determined by ANS, reactive S H groups, SS bonds and ZP (P < 0.001) and negatively correlated with total SH groups (P = 0.009). In general, foam volume was positively correlated with S₀ determined by PROD AN and ANS, reactive SH groups, and SS bonds (P < 0.05) and negatively correlated with total SH groups and ZP (P < 0.05). Significant correlations of structural properties to gel strength and foam volume were observed by multiple regression analysis using a full quadratic model (R² = 0.956 and R² = 0.918, respectively; P < 0.001; n = 53).
Charge Localization and Hopping in a Topologically Engineered GNR
Creators: name: Junior, Marcelo Lopes Pereira
name: Neto, Pedro Henrique de Oliveira
name: Filho, Demetrio Antonio da Silva
name: de Sousa, Leonardo Evaristo
name: Silva, Geraldo Magela e
name: Junior, Luiz Antonio Ribeiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: J.2; I.6
subject: 00-xx

description: Graphene nanoribbons (GNRs) are promising two-dimensional materials with various technological applications, in particular for the armchair GNR families that have a semiconductor character. Recently, methods that allowed for the control of GNR's topology have been developed, resulting in the production of nanoribbons composed of alternating segments of two distinct armchair GNR families (7 and 9-AGNRs) connected in heterojunctions. This GNR displays two topological bands that lie between the valence and conduction bands that effectively modulates the nanoribbon bandgap. Here, we employ a two-dimensional extension of the Su-Schrieffer-Heeger model to study morphological and electronic properties of this new material in both neutral and charged states. Results demonstrate that charge injection in this system results in the formation of polarons that localize strictly in the 9-AGNRs segments of the system and whose mobility is highly impaired by the system's topology. We further show polaron displacement by means of hopping between 9-AGNR portions of the system, suggesting this mechanism for charge transport in this material.
description: 17 pages and 05 figures
Competition, Kinship or Reciprocity? Village Experiments in Alternative Modes of Exchange
Creators: name: Subramanian, Arjunan
name: Qaim, Matin
name: Subramanian, Arjunan
name: Qaim, Matin
Publisher: name: Unknown
Year: 2006
Subjects: subject: Consumer/Household Economics
subject: Reciprocity
subject: Kinship
subject: Neighborhood effects
subject: Trader idiosyncrasy
subject: Equilibrium

description: In this paper, detailed data on transactions in a village commodity market are used to explain the puzzle of sluggish agricultural supply response. We show that existence of reciprocity among sellers exhibits multiple equilibria and creates trade diversion. Large volumes of the commodity are sold to a trader who does not offer the best price, but on whom sellers depend through transactions in other markets. An implication of this trader-idiosyncratic effect on supply is that policies that affect prices may result in different supply responses.
On the Original Proof by Reductio ad Absurdum of the Hohenberg-Kohn Theorem for Many-Electron Coulomb Systems
Creators: name: Kryachko, Eugene S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Nuclear Theory (nucl-th)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: It is shown that, for isolated many-electron Coulomb systems with Coulombic external potentials, the usual reductio ad absurdum proof of the Hohenberg-Kohn theorem is unsatisfactory since the to-be-refuted assumption made about the one-electron densities and the assumption about the external potentials are not compatible with the Kato cusp condition. The theorem is, however, provable by more sophisticated means and it is shown here that the Kato cusp condition actually leads to a satisfactory proof.
description: 14 pages. Int. J. Quantum Chem. to appear
Rainfall or Price Variability: What Determines Rangeland Management Decisions? A Simulation-Optimization Approach to South African Savannas
Creators: name: Börner, Jan
name: Higgins, Steven Ian
name: Kantelhardt, Jochen
name: Scheiter, Simon
name: Börner, Jan
name: Higgins, Steven Ian
name: Kantelhardt, Jochen
name: Scheiter, Simon
Publisher: name: Unknown
Year: 2006
Subjects: subject: Livestock Production/Industries
subject: Equilibrium
subject: bio-economic modeling
subject: grassland management
subject: sustainable strategies
subject: stochastic conditions

description: Savannas cover the greater part of Africa and Australia and almost half of South America and contribute to the livelihoods of more than 350 million people. With the intensification of land use during the second half of the 20th century, savannas have become increasingly degraded through bush encroachment as a consequence of increased grazing pressure. Research on rangeland dynamics, however, provides contradicting answers with regard to the causes and possible remedies of bush encroachment. In this paper we present results from an application of a simulation-optimization model to the case of extensive rangeland management in South Africa. Our model differs from previous approaches in that it explicitly accounts for the influence of stochastic prices and rainfall on economically optimal management decisions. By showing the implications of neglecting price variation and stochasticity in rangeland models we provide new insights with regard to the determinants of bush encroachment and rangeland managers' economic utility. We demonstrate that, in the case of South Africa, optimal rangeland management is likely to lead to bush encroachment that eventually makes livestock holding unprofitable. Yet, we identify the costs of fire management to be a limiting factor for managers to counteract bush encroachment and explore the impact of policy measures to reduce fire control costs on the ecological and economic sustainability of livestock holding.
Third Party Effects and Asymmetric Externalities in Groundwater Extraction: The Case of Cherokee Strip in Butte County, California
Creators: name: Msangi, Siwa
name: Howitt, Richard E.
name: Msangi, Siwa
name: Howitt, Richard E.
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: While water markets have been shown to be beneficial to users, the transfers made through sales can have serious third-party impacts, as has been addressed in the water resources literature. Potential asymmetries arising from the hydrological characteristics of the groundwater basin could seriously affect the distribution of the impacts resulting from these transfers, when taken into account. In this paper we seek to extend the water resources management literature by examining the depletion problem experienced on the Cherokee Strip, in the hills of Butte County, and account for asymmetric external effects in a model of strategic groundwater pumping. The results of this model show that current ordinance restricting water transfers from Butte County does not serve the interests of promoting efficiency, and that volumetric limits on groundwater pumping is the preferred policy instrument. These results were robust to behavioral assumptions. This paper also highlights the need to move beyond simpe single-cell aquifer modeling and to find appropriate institutional arrangements that can mitigate the kind of asymmetric third-party impacts seen in Butte County, especially during drought periods, when third-parties are most vulnerable and the market incentives for making transfers is greatest.
[Letter from Komiteen for opprettelse af en biologisk stasjon og utklækningsanstalt ved Christianiafjorden (i Drøbak)]
Creators: name: Komiteen For Opprettelse Af En Biologisk Stasjon Og Utklækningsanstalt Ved Christianiafjorden (I Drøbak)
Publisher: name: Unknown
Year: 1891
Subjects: Guldberg, Gustav Adolph
Wille, Johan Nordal Fischer
Brøgger, W. C.
Collett, Robert
Nansen, Fridtjof Wedel-Jarlsberg
Sars, Georg Ossian
Torup, Sophus Carl Frederik

description: The letter is addressed to: Det mathematisk-naturvidenskabelige fakultet. The letter is signed by: Gustav Guldberg, N. Wille, W. C. Brøgger, R. Collett, F. Nansen, G. O. Sars, and S. Torup. Information about the intention to found a biological station in Drøbak near Kristiania (Kristianiafjordens biologiske station og udklækingsanstalt).
Computer Vision with Deep Learning for Plant Phenotyping in Agriculture: A Survey
Creators: name: Chandra, Akshay L
name: Desai, Sai Vikas
name: Guo, Wei
name: Balasubramanian, Vineeth N
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In light of growing challenges in agriculture with ever growing food demand across the world, efficient crop management techniques are necessary to increase crop yield. Precision agriculture techniques allow the stakeholders to make effective and customized crop management decisions based on data gathered from monitoring crop environments. Plant phenotyping techniques play a major role in accurate crop monitoring. Advancements in deep learning have made previously difficult phenotyping tasks possible. This survey aims to introduce the reader to the state of the art research in deep plant phenotyping.
description: Featured as an article at Journal of Advanced Computing and Communications, April 2020. arXiv admin note: text overlap with arXiv:1805.00881 by other authors
Freyastera loricata Zhang & Zhou & Mao & Wang & Zhang 2025, comb. nov.
Creators: name: Zhang, Ruiyan
name: Zhou, Yadong
name: Mao, Jingwen
name: Wang, Chunsheng
name: Zhang, Dongsheng
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Asteroidea
Brisingida
Freyellidae
Freyastera
Freyastera loricata

description: Freyastera loricata (Korovchinsky & Galkin, 1984) comb. nov.
Fig. 9 A – D
Freyella loricata: Korovchinsky and Galkin 1984: 1208; Galkin and Korovchinsky 1984: 167; Mah 1998: 90; Mah in Clark and Mah 2001: 322; Zhang et al. 2019: 7 (in key).
Material examined.
ECH 00161 (paratype) (Fig. 9 A – D). (Suppl. material 1).
Remarks.
Freyella loricata was described based on multiple individuals collected from east of the Kuril-Kamchatka Trench (Korovchinsky and Galkin 1984). Same as F. giardi, this species was traditionally classified as Freyella but has many shared characters with Freyastera, especially with F. tuberculata. It has inferomarginal plates and lateral spines that begin at the 7 th adambulacral plate, appear at alternate adambulacral plates, and then at every adambulacral plate (Korovchinsky and Galkin 1984); thus, we reassign this species as Freyastera loricata comb. nov.
Distribution.
Only known at type locality. East of the Kuril-Kamchatka Trench. 4995–5998 m.
description: Published as part of Zhang, Ruiyan, Zhou, Yadong, Mao, Jingwen, Wang, Chunsheng & Zhang, Dongsheng, 2025, Hidden diversity of Freyastera (Asteroidea, Brisingida, Freyellidae) at great depth: Description of new species and remarks on species boundaries, pp. 735-760 in Zoosystematics and Evolution 101 (2) on pages 735-760, DOI: 10.3897/zse.101.144918
Additional file 1 of Sonic hedgehog signalling as a potential endobronchial biomarker in COPD
Creators: name: Ancel, Julien
name: Belgacemi, Randa
name: Jeanne-Marie Perotin
name: Zania Diabasana
name: Dury, Sandra
name: Dewolf, Maxime
name: Bonnomet, Arnaud
name: Lalun, Nathalie
name: Birembaut, Philippe
name: Polette, Myriam
name: Deslée, Gaëtan
name: Dormoy, Valérian
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. Baseline characteristics of the population who underwent bronchial brushing.
Application of a Spatial Water Model in a Chinese Watershed
Creators: name: Fang, Lan
name: Nuppenau, Ernst-August
name: Fang, Lan
name: Nuppenau, Ernst-August
Publisher: name: Unknown
Year: 2006
Subjects: subject: Resource /Energy Economics and Policy
subject: a spatial model
subject: water use efficiency
subject: adoption of irrigation technology
subject: technology

description: China's fast growing economy has brought some environmental problems, especially in water administration. Inefficiencies in irrigation activities have created severe negative effects to the environment of rural communities, and the more serious water shortages hamper food production, too. Major questions at hand are, how to improve water use efficiency, to reduce negative external effects, to optimize water allocation in agriculture, to invest in water saving technologies, and to assure more water for high value added agriculture. This paper investigates the impacts of irrigation technologies and investments in water saving on the rural economy and the environment. By taking into account individual farmers' inclination to adopt modern water-saving technologies and governments' willingness to improve public water transit systems, we optimize water use in a Chinese watershed. The main contribution is a model that shows how to optimize spatial allocation and adoption of irrigation technology given farm and investment costs. The paper employs a mathematical, spatial programming model using GAMS for optimization. It shows the importance of water pricing and discusses various policy measures such as pricing and public conveyance. The model results are of value for policy makers and project managers to allocate water more efficiently, to optimize irrigation projects, and to provide references for farmers in applying water conservation technologies.
X-ray Spectroscopy of Candidate Ultracompact X-ray Binaries
Creators: name: Juett, Adrienne M.
name: Chakrabarty, Deepto
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high-resolution spectroscopy of the neutron star/low-mass X-ray binaries (LMXBs) 4U 1850-087 and 4U 0513-40 as part of our continuing study of known and candidate ultracompact binaries. The LMXB 4U 1850-087 is one of four systems in which we had previously inferred an unusual Ne/O ratio in the absorption along the line of sight, most likely from material local to the binaries. However, our recent Chandra X-ray Observatory LETGS spectrum of 4U 1850-087 finds a Ne/O ratio by number of 0.22+/-0.05, smaller than previously measured and consistent with the expected interstellar value. We propose that variations in the Ne/O ratio due to source variability, as previously observed in these sources, can explain the difference between the low- and high-resolution spectral results for 4U 1850-087. Our XMM-Newton RGS observation of 4U 0513-40 also shows no unusual abundance ratios in the absorption along the line of sight. We also present spectral results from a third candidate ultracompact binary, 4U 1822-000, whose spectrum is well fit by an absorbed power-law + blackbody model with absorption consistent with the expected interstellar value. Finally, we present the non-detection of a fourth candidate ultracompact binary, 4U 1905+000, with an upper limit on the source luminosity of < 1 x 10^{32} erg s^{-1}. Using archival data, we show that the source has entered an extended quiescent state.
description: 8 pages, 3 figures, accepted for publication to the Astrophysical Journal
[Letter from Det Matematisk-naturvidenskabelige fakultet by T. H. Hiortdal]
Creators: name: Hiortdal, T. H. On Behalf Of Det Matematisk-Naturvidenskabelige Fakultet
Publisher: name: Unknown
Year: 1891
Subjects: Hiortdahl, Thorstein Hallager

description: The letter is addressed to Komiteen for opprettelse af en biologisk station ved Kristianiafjorden. Information that the faculty gives its support to the founding of a biological station. Invitation to give a donation.
Auctioning Conservation Payments using Environmental Indices
Creators: name: Cattaneo, Andrea
name: Cattaneo, Andrea
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: environmental payments
subject: program design
subject: participation incentives
subject: D8
subject: H5
subject: Q28

description: A framework for analyzing conservation programs that rank applications using environmental indices is presented. We derive the optimal bid from the farmer's perspective for both land retirement and working lands agri-environmental payment programs and we analyze how these solutions depend on program design parameters. The distinction is made between environmental objectives based on whether the farmer exercises control or not over the level proposed in a bid to participate in a program. The optimization model is solved analytically for two cases - a land retirement and a working lands program - highlighting the differences in the results. For land retirement programs we conclude that, for the cases considered, the exogenous environmental performance does not affect the endogenous environmental performance offered in a bid, but it does impact the rental rate requested. For working lands payments programs we find there is no interior solution to the decision problem, which generates a dichotomy between sets of parameters that either favor bidding based on past stewardship and low payments, or favor providing bids with higher endogenous environmental performance but requesting the maximum allowable payment. A sufficient condition is derived for the latter case to apply. A simulated auction example highlights for a working lands program that changing the objective weights can have more than proportionate impacts on the endogenous environmental performance offered by farmers. This result is in strong contrast with the relative stability of the outcome of the simulated auction for the land retirement program.
Kinematic Structure of the Galactic Center S-cluster
Creators: name: Ali, Basel
name: Paul, Daria
name: Eckart, Andreas
name: Parsa, Marzieh
name: Zajacek, Michal
name: Peißker, Florian
name: Subroweit, Matthias
name: Valencia-S., Monica
name: Thomkins, Lauritz
name: Witzel, Gunther
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed analysis of the kinematics of 112 stars that mostly comprise the high velocity S-cluster and orbit the super massive black hole SgrA* at the center of the Milky Way. For 39 of them orbital elements are known, for the remainder we know proper motions. The distribution of inclinations, and proper motion flight directions deviate significantly from a uniform distribution which one expects if the orientation of the orbits are random. Across the central arcseconds the S-cluster stars are arranged in two almost edge on disks that are located at a position angle approximately +-45 o with respect to the Galactic plane. The angular momentum vectors for stars in each disk point in both directions, i.e. the stars in a given disk rotate in opposite ways. The poles of this structure are located only about 25 o from the line of sight. This structure may be the result of a resonance process that started with the formation of the young B-dwarf stars in the cluster about 6 Myr ago. Alternatively, it indicated the presence of a disturber at a distance from the center comparable to the distance of the compact stellar association IRS13.
description: published in Astrophysical Journal 23 pages, 6 tabels, 16 figures, ENHANCED GRAPHICS in ApJ in fullorbits.gif circularized.gif normalized.gif
بررسی علل پایین بودن مهارت های پژوهشی دانش آموزان مقطع دبیرستان
Creators: name: Tavassoli, Afsaneh
name: Amanolahi, Mina
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology

description: هدف کلی این تحقیق، بررسی علل موثر بر پایین بودن مهارت های پژوهشی از دیدگاه دانش آموزان دبیرستان شهر بهبهان می باشد. وهمچنین اهداف فرعی و جزئی این پژوهش و تحقیق : 1 . بررسی و مطالعه دقیق درزمینه سنجش علل پایین بودن مهارتهای پژوهشی دانش آموزان دبیرستان بهبهان ازطریق تهیه پرسش نامه. 2 .ارائه راهکارها وراهبردهای صحیح ونتیجه گیری ازطریق پرسش نامه برای این مشکل.روش بررسی : نمونه آماری این پژوهش تعداد تحقیق حاضر یک تحقیق توصیفی تبیینی می باشد. جامعه آماری این پژوهش شامل کلیه دانش آموزان مقطع دبیرستان شهرستان بهبهان است انتخاب گردید. جهت بررسی فرضیات ازپرسشنامه ی محقق 230 نفر از دانش آموزان مقطع دبیرستان این شهرستان بوده است که به صورت تصادفی از کل دبیرستان های شهر پس از انجام پیش آزمون و دریافت آلفای کرونباخ پرسشنامه ساخته و همچنین از پرسشنامه استاندارد سطح سنجش انگیزش تحصیلی دانش اموزان والرند (1998) استفاد گردید. نفراز دانش آموزان شهرستان بهبهان توزیع و تکمیل گردید. تحلیل یافته ها در دو سطح آمار توصیفی و آمار استنباطی انجام شد. 230 اصلاح شده بین نتایج به دست آمده نشان داد که میان پایگاه اجتماعی اقتصادی خانواده دانش آموزان و پایین بودن مهارت های پژوهشی ایشان رابطه معناداری وجود دارد و با کاهش پایگاهابزار پژوهش در مدرسه و همچنین انگیزه دانش اقتصادی اجتماعی خانواده مهارت های پژوهشی دانش آموزان کاهش می یابد . اما رابطه ی معناداری میان شیوه تدریس معلمان، آموزان در رفتن به مدرسه و پایین بودن مهارت های پژوهشی در دانش آموزان یافت نشد.
Factors Constraining Efficiency of Russian Corporate Farms: The Case of the Moscow Region
Creators: name: Hockmann, Heinrich
name: Svetlov, Nikolai M.
name: Hockmann, Heinrich
name: Svetlov, Nikolai M.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Productivity Analysis
subject: dairy market
subject: international trade
subject: market integration

description: A time series model is estimated to identify the interrelation among prices on the international and the EU domestic market for butter. Although the findings were not derived from a causal model, the inspection of the data provides economically reasonable and important insights in structural relationship between international and domestic prices. The fact that international prices in the EU and Oceania are causal for each other is an indication of an integrated market. Price transmission is not perfect suggesting that competition between the EU and Oceania exists, however, but not as intense as it could be expected for a homogeneous good like butter. The estimates provide that the EU absorbs price fluctuations form the word market. Interestingly, changes of prices in Oceania have no impact on the domestic EU market. Fluctuations of the EU world market prices, on the other hand, are absorbed to a large extent. One explanation is the inappropriate fixing export refunds.
Using ONETEP for accurate and efficient O(N) density functional calculations
Creators: name: Skylaris, Chris-Kriton
name: Haynes, Peter D.
name: Mostofi, Arash A.
name: Payne, Mike C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a detailed comparison between ONETEP, our linear-scaling density functional method, and the conventional pseudopotential plane wave approach in order to demonstrate its high accuracy. Further comparison with all-electron calculations shows that only the largest available Gaussian basis sets can match the accuracy of routine ONETEP calculations. Results indicate that our minimisation procedure is not ill-conditioned and that convergence to self-consistency is achieved efficiently. Finally we present calculations with ONETEP, on systems of about 1000 atoms, of electronic, structural and chemical properties of a wide variety of materials such as metallic and semiconducting carbon nanotubes, crystalline silicon and a protein complex.
Additional file 1 of Aggressive behavioural interactions between swans (Cygnus spp.) and other waterbirds during winter: a webcam-based study
Creators: name: Wood, Kevin A.
name: Ham, Phoebe
name: Scales, Jake
name: Wyeth, Eleanor
name: Rose, Paul E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Screenshots of the live webcam footage, illustrating the field-of-view of the webcams at (a) WWT Slimbridge and (b) WWT Caerlaverock.
Radiation Damage Study of SensL J-Series Silicon Photomultipliers Using 101.4 MeV Protons
Creators: name: Ulyanov, Alexei
name: Murphy, David
name: Mangan, Joseph
name: Gupta, Viyas
name: Hajdas, Wojciech
name: de Faoite, Daithi
name: Shortt, Brian
name: Hanlon, Lorraine
name: McBreen, Sheila
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Radiation damage of J-series silicon photomultipliers (SiPMs) has been studied in the context of using these photodetectors in future space-borne scintillation detectors. Several SiPM samples were exposed to 101.4 MeV protons, with 1 MeV neutron equivalent fluence ranging from 1.27*10^8 n/cm^2 to 1.23*10^10 n/cm^2 . After the irradiation, the SiPMs experienced a large increase in the dark current and noise, which may pose problems for long-running space missions in terms of power consumption, thermal control and detection of low-energy events. Measurements performed with a CeBr3 scintillator crystal showed that after exposure to 1.23*10^10 n/cm^2 and following room-temperature annealing, the dark noise of a single 6 mm square SiPM at room temperature increased from 0.1 keV to 2 keV. Because of the large SiPM noise, the gamma-ray detection threshold increased to approximately 20 keV for a CeBr3 detector using a 4-SiPM array and 40 keV for a detector using a 16-SiPM array. Only a small effect of the proton irradiation on the average detector signal was observed, suggesting no or little change to the SiPM gain and photon detection efficiency.
description: Published in Nuclear Instruments and Methods in Physics Research Section A
Analysis of the Structure and Performance of the Beans Marketing System in Nairobi
Creators: name: Odhiambo, Mark O.
name: Oluoch-Kosura, Willis
name: Kibiego, Michael B.
name: Odhiambo, Mark O.
name: Oluoch-Kosura, Willis
name: Kibiego, Michael B.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Beans
subject: Competitive Structure
subject: Co-integration and Efficiency.

description: Beans are widely grown as a major food crop in Eastern and Southern Africa. It is the most important staple food crop after maize in Kenya (ECABREN, 2000). The beans industry in Kenya is faced with problems of shortages, seasonal supply and price fluctuations and inadequate information on production, marketing and consumption. These problems are more acute in urban areas. This paper analyzes the structure and performance of the beans marketing system in Nairobi metropolitan area, the single most important beans market in Kenya. Data from a sample of 102 traders augmented by secondary data were used to analyze the marketing system by applying descriptive statistics, concentration ratios and co-integration models. The results showed that the beans marketing structure approached that of pure competition; however, lack of capital was a barrier to entry into the wholesale and retail trade. The Johansen likelihood-based vector autoregressive model showed that there was no significant co-integration of the major markets in the city possibly due to inefficient market information flow.
Clumpiness: Time-domain classification of red-giant evolutionary states
Creators: name: Kuszlewicz, James S.
name: Hekker, Saskia
name: Bell, Keaton J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Long, high-quality time-series data provided by previous space-missions such as CoRoT and $\mathit{Kepler}$ have made it possible to derive the evolutionary state of red-giant stars, i.e. whether the stars are hydrogen-shell burning around an inert helium core or helium-core burning, from their individual oscillation modes. We utilise data from the $\mathit{Kepler}$ mission to develop a tool to classify the evolutionary state for the large number of stars being observed in the current era of K2, TESS and for the future PLATO mission. These missions provide new challenges for evolutionary state classification given the large number of stars being observed and the shorter observing duration of the data. We propose a new method, $\mathtt{Clumpiness}$, based upon a supervised classification scheme that uses "summary statistics" of the time series, combined with distance information from the Gaia mission to predict the evolutionary state. Applying this to red giants in the APOKASC catalogue, we obtain a classification accuracy of ~91% for the full 4 years of $\mathit{Kepler}$ data, for those stars that are either only hydrogen-shell burning or also helium-core burning. We also applied the method to shorter $\mathit{Kepler}$ datasets, mimicking CoRoT, K2 and TESS achieving an accuracy >91% even for the 27 day time series. This work paves the way towards fast, reliable classification of vast amounts of relatively short-time-span data with a few, well-engineered features.
description: 16 pages, 8 figures, accepted for publication in MNRAS
Comparing different models of aftershock rate decay: the role of catalog incompleteness in the first times after main shock
Creators: name: Lolli, Barbara
name: Gasperini, Paolo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We evaluated the efficiency of various models in describing the time decay of aftershock rate of 47 simple sequences occurred in California (37) from 1933 to 2004 and in Italy (10) from 1976 to 2004. We compared the models by the corrected Akaike Information Criterion (AICc) and the Bayesian Information Criterion (BIC), both based on the log-likelihood function but also including a penalty term that takes into account the number of independent observations and of free parameters of each model. We compared the performance of different models by varying the starting time Ts and the minimum magnitude threshold Mmin for each sequence. We found that Omori-type models including parameter c are preferable to those not including it, only for short Ts and low Mmin while the latters generally perform better than the formers for Ts longer than a few hours and Mmin larger than the main shock magnitude Mm minus 3 units. This clearly indicates that a value of parameter c different from zero does not represent a general property of aftershock sequences in California and Italy but it is very likely induced in most cases by catalog incompleteness in the first times after the main shock. We also considered other models of aftershock decay proposed in the literature: the Stretched Exponential Law in two forms (including and not including a time shift) and the band Limited Power Law (LPL). We found that such models perform worse than the Modified Omori Model (MOM) and other Omori-type models for the large majority of sequences, although for LPL, the relatively short duration of the analyzed sequences (one year) might also contribute to its poor performance.
description: 33 pages, 10 figures, 1 table
Dressed Minimal Surfaces in AdS$_4$
Creators: name: Katsinis, Dimitrios
name: Manolopoulos, Dimitrios
name: Mitsoulas, Ioannis
name: Pastras, Georgios
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We apply an arbitrary number of dressing transformations to a static minimal surface in AdS(4). Interestingly, a single dressing transformation, with the simplest dressing factor, interrelates the latter to solutions of the Euclidean non linear sigma model in dS(3). We present an expression for the area element of the dressed minimal surface in terms of that of the initial one and comment on the boundary region of the dressed surface. Finally, we apply the above formalism to the elliptic minimal surfaces and obtain new ones.
description: 39 pages, 2 figures
Flower Power at the Dutch Flower Auctions? Application of an Inverse Almost Ideal Demand System
Creators: name: Steen, Marie
name: Steen, Marie
Publisher: name: Unknown
Year: 2006
Subjects: subject: Demand and Price Analysis
subject: Risk management
subject: cut flower production
subject: inverse linear AIDS
subject: seasonality
subject: trigonometric functions

description: Information on price-quantity relationships will enable flower producers to reduce risk and raise profits through better timing of rotations as well as better utilization of limited greenhouse space. The present paper presents econometric evidence on such price-quantity relationships for major species of cut flowers at the Dutch flower auctions. Specifically, an inverse linear approximate almost ideal demand model with seasonal adjustments is applied. This paper is introducing trigonometric functions as a flexible and inexpensive alternative that outperforms standard seasonal dummies. Major findings are that all flexibilities (quantity elasticities) are strongly significant. Own price flexibilities are negative as expected. The own flexibilities vary substantially across the different species. The estimates indicate different effects from strategic marketing behavior across producers of different species. While some "concerted action" among chrysanthemum producers in terms of supply adjustments may have significant price effects, such behavior for producers of carnations appears to have less impact. Most cross flexibilities are negative, thus, the different cut flowers appear to be quantity-substitutes. Based on the estimated values for price and scale flexibilities, a potential for strategic marketing or market timing seems to exist. Utilizing this information, in given weeks even relatively small producers may be big enough to influence the prices, i.e. there exists a potential for "flower power" at the Dutch Flower Auctions.
A general solution for classical sequential growth dynamics of Causal Sets
Creators: name: Varadarajan, Madhavan
name: Rideout, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A classical precursor to a full quantum dynamics for causal sets has been forumlated in terms of a stochastic sequential growth process in which the elements of the causal set arise in a sort of accretion process. The transition probabilities of the Markov growth process satisfy certain physical requirements of causality and general covariance, and the generic solution with all transition probabilities non-zero has been found. Here we remove the assumption of non-zero probabilities, define a reasonable extension of the physical requirements to cover the case of vanishing probabilities, and find the completely general solution to these physical conditions. The resulting family of growth processes has an interesting structure reminiscent of an ``infinite tower of turtles'' cosmology.
description: 20 pages, 1 figure, LaTeX; response to referee comments
Rural Livelihoods: Interplay Between Farm Activities, Non-farm Activities and the Resource Base
Creators: name: Kuiper, Marijke H.
name: Meijerink, Gerdien W.
name: Eaton, Derek J.F.
name: Kuiper, Marijke H.
name: Meijerink, Gerdien W.
name: Eaton, Derek J.F.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Labor and Human Capital
subject: off-farm income
subject: rural development
subject: micro-economics

description: A concentration of poor in rural areas has resulted in a research and policy focus on agricultural technologies and (poor) households' impact on soil productivity. But farm households do not live of farming alone, non-farm activities play a principal role even in remote areas. With a unique household-level dataset covering seven regions in Africa and two in Asia we analyze (1) the importance of non-farm income in different geographical zones; (2) the role of geographical factors in determining access to non-farm employment; (3) the role of non-farm income in external input use and soil nitrogen balances. Distinguishing geographical zones based on the distance to urban areas we find the share of non-farm income increasing from 12 percent in the remote areas to 35 percent in peri-urban areas. Geographical location is found to explain a major part of the variation in individual non-farm participation, besides characteristics like education and gender. At household level we find non-farm income not playing a role of significance in explaining external input use, inorganic fertilizer use nor changes in the nitrogen balance. Households thus appear not to invest non-farm income in agriculture. This limits the contribution of non-farm income to reducing widespread soil nutrient depletion witnessed in Africa.
ISLOM MOLIYASI XUSUSIYATLARINING NAZARIY ASOSLARI
Creators: name: Kakharova Dildora Erkinovna
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada islom moliyasi xususiyatlarining nazariy asoslari keng о‘rganilgan. Islom moliyasining rivojlanish holati va zaruriyatlari, islom moliyasining boshqa moliyalardan farqli jihatlari tadqiq qilingan.
[Letter from Styret for de norske Fiskeriers Fremme]
Creators: name: Styret For De Norske Fiskeriers Fremme
Publisher: name: Unknown
Year: 1891

description: Sent the following issues of Norsk Fiskeritidende: 1882 (nos. 1 and 2), 1884 (no. 4), 1885 (nos. 3 and 4).
Agricultural Change and Population Growth: District-Level Evidence From India
Creators: name: Witcover, Julie
name: Vosti, Stephen A.
name: Lipton, Michael
name: Witcover, Julie
name: Vosti, Stephen A.
name: Lipton, Michael
Publisher: name: Unknown
Year: 2006
Subjects: International Development

description: Green Revolution technologies were developed and promoted in the 1960s in response to alarm about impending famine in Asia. By boosting food supplies and fostering development, the technologies were expected to create "breathing space" for completing demographic transitions there. This paper uses District-level data from rural India on agricultural transformation (from 1961 to 1981) and on changes in human fertility (from 1971 to 1981) to examine whether they did so. In a reduced form model, female literacy and marriage rates emerged as strong fertility change determinants; effects varied by age cohort. Growth in real wages in rural areas, in part brought about by HYV technologies, accelerated fertility declines. With real wage growth effects of Green Revolution technologies controlled for, faster diffusion of wheat and rice HYV each led to faster fertility declines; greater diffusion of bajra (millet) HYV was associated with smaller fertility declines. Policy action to enhance fertility declines may be worthwhile regardless of agricultural sector goals, but policymakers should be aware of direct and indirect effects of agricultural intensification policies on human fertility.
Landscape of solutions in constraint satisfaction problems
Creators: name: Mezard, Marc
name: Palassini, Matteo
name: Rivoire, Olivier
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a theoretical framework for characterizing the geometrical properties of the space of solutions in constraint satisfaction problems, together with practical algorithms for studying this structure on particular instances. We apply our method to the coloring problem, for which we obtain the total number of solutions and analyze in detail the distribution of distances between solutions.
description: 4 pages, 4 figures. Replaced with published version
Salienteye: Maximizing Engagement While Maintaining Artistic Style on Instagram Using Deep Neural Networks
Creators: name: Wang, Lili
name: Liu, Ruibo
name: Vosoughi, Soroush
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Instagram has become a great venue for amateur and professional photographers alike to showcase their work. It has, in other words, democratized photography. Generally, photographers take thousands of photos in a session, from which they pick a few to showcase their work on Instagram. Photographers trying to build a reputation on Instagram have to strike a balance between maximizing their followers' engagement with their photos, while also maintaining their artistic style. We used transfer learning to adapt Xception, which is a model for object recognition trained on the ImageNet dataset, to the task of engagement prediction and utilized Gram matrices generated from VGG19, another object recognition model trained on ImageNet, for the task of style similarity measurement on photos posted on Instagram. Our models can be trained on individual Instagram accounts to create personalized engagement prediction and style similarity models. Once trained on their accounts, users can have new photos sorted based on predicted engagement and style similarity to their previous work, thus enabling them to upload photos that not only have the potential to maximize engagement from their followers but also maintain their style of photography. We trained and validated our models on several Instagram accounts, showing it to be adept at both tasks, also outperforming several baseline models and human annotators.
description: Proceedings of the 2020 International Conference on Multimedia Retrieval. 2020