cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 12 of Host DNA contents in fecal metagenomics as a biomarker for intestinal diseases and effective treatment
Creators: name: Puzi Jiang
name: Senying Lai
name: Sicheng Wu
name: Zhao, Xing-Ming
name: Chen, Wei-Hua
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 60506 Virology

description: Additional file 12: Figure S2. Pearson correlation between HDC and FCP in CD dataset (SRP057027).
title: 02_0835
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: An investigation of students' computer-based learning strategies
Creators: name: Di Paolo, Terry
Publisher: name: The Open University
Year: 2002

description: In recent decades, there has been a significant increase in the development and use of computer based learning technology in tertiary education. At the same time, researchers in the field of education have begun to develop an understanding of student learning in terms of learning strategies. Such constructs represent motives, behaviours and thought processes adopted by the student that are believed to mediate learning. This thesis investigates the learning strategies adopted by students using a computer-assisted learning system as part of their studies. Furthermore, the thesis examines the extent to which these computer-based strategies differ from learning strategies related to traditional teaching methods and tools. The computer-based learning strategies of a population of distance education students were investigated using a CD-ROM. The students were studying the course Biology, Brain and Behaviour at the Open University and the Human Brain CD-ROM was an optional component of their learning materials. Data collected from questionnaires, interviews and observations over four studies led to the proposal of a framework of computei-based strategies. This framework comprises ten strategies that cover motivation, information processing and management of resources on the CD-ROM. When these strategies were compared to a framework of strategies related to the study of traditional teaching materials a number of differences emerged between the strategies used in the computer and traditional learning contexts.
Quantum-well and modified image-potential states in thin Pb(111) films: an estimate for the local work function
Creators: name: Aladyshkin, A. Yu.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum-confined electronic states such as quantum-well states (QWS) inside thin Pb(111) films and modified image-potential states (IPS) above the Pb(111) films grown on Si(111)7$\times$7 substrate were studied by means of low-temperature scanning tunnelling microscopy (STM) and spectroscopy (STS) in the regime of constant current $I$. By plotting the position of the $n-$th emission resonances $U^{\,}_n$ versus $n^{2/3}$ and extrapolating the linear fit for the dependence $U^{\,}_n(n^{2/3})$ in the high-$n$ limit towards $n=0$, we estimate the local work function for the Pb(111) film: $W\simeq 3.8\pm 0.1\,$eV. We experimentally demonstrate that modifications of the shape of the STM tip can change the number of the emission peaks associated with the resonant tunnelling via quantized IPS levels for the same Pb terrace; however it does not affect the estimate of the local work function for the flat Pb terraces. We observe that the maxima in the spectra of the differential tunnelling conductance $dI/dU$ related to both the QWS and the modified IPS resonances are less pronounced if the STM tip becomes more blunt.
description: 14 pages, 7 figures
Ising antiferromagnet with mobile, pinned and quenched defects
Creators: name: Selke, W.
name: Holtschneider, M.
name: Leidl, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Motivated by recent experiments on (Sr,Ca,La)_14 Cu_24 O_41, a two-dimensional Ising antiferromagnet with mobile, locally pinned and quenched defects is introduced and analysed using mainly Monte Carlo techniques. The interplay between the arrangement of the defects and the magnetic ordering as well as the effect of an external field are studied.
description: 10 pages, 6 figures. Condensed Matter Physics (Festschrift in honour of R. Folk)
Residual resistance ratio of Cu stabilizer in commercial REBCO tapes
Creators: name: Lu, Jun
name: Xin, Yan
name: Toplosky, Vince
name: Levitan, Jeremy
name: Han, Ke
name: Wadhams, Jane
name: Humayun, Munir
name: Abraimov, Dmytro
name: Bai, Hongyu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Residual resistance ratio (RRR) of Cu stabilizer in REBCO coated conductor is an important design parameter for REBCO magnets. In this work, we measured RRR of electroplated Cu stabilizer in commercial REBCO tapes. Over 130 samples were measured for the quality assurance programs of REBCO magnet projects at the National High Magnetic Field Laboratory, USA (NHMFL). The average RRR value was above 50. In order to investigate the factors that influence RRR, several samples were analyzed by using scanning electron microscopy, secondary ion mass spectroscopy, and inductively coupled plasma mass spectroscopy. We found that, in our samples, RRR was strongly correlated with the grain size. We demonstrated that RRR was primarily determined by grain boundary resistivity. Lower RRR was also strongly correlated with higher concentration of chlorine impurity. This is explained by that higher chlorine impurity hindered the grain growth in the room temperature self annealing process resulting smaller grain. Smaller grain resulted in lower RRR. In addition, thermal annealing significantly enhanced RRR. An activation energy of 0.4 eV was obtained from the annealing experiment which corresponds to the activation of Cu grain growth.
description: 18 pages
Are There Diquarks in the Nucleon?
Creators: name: Cristoforetti, M.
name: Faccioli, P.
name: Ripka, G.
name: Traini, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This work is devoted to the study of diquark correlations inside the nucleon. We analyze some matrix elements which encode information about the non-perturbative forces, in different color anti-triplet diquark channels. We suggest a lattice calculation to check the quark-diquark picture and clarify the role of instanton-mediated interactions. We study in detail the physical properties of the 0+ diquark, using the Random Instanton Liquid Model. We find that instanton forces are sufficiently strong to form a diquark bound-state, with a mass of ~500 MeV, which is compatible with earlier estimates. We also compute its electro-magnetic form factor and find that the diquark is a broad object, with a size comparable with that of the proton.
description: Final version, accepted for publication on Phys. Rev. D
The activational and organizational influences of androgens on stress-induced changes in adult hippocampal cell proliferation and defensive behaviour
Creators: name: Kambo, Jaspreet Singh
Publisher: name: University of British Columbia
Year: 2010

description: Adult male laboratory rats demonstrate a suppression in hippocampal cell proliferation in response to an acute predator odour stress. This stress-induced suppression in cell proliferation is not seen in adult females and past studies have shown that activational levels of ovarian hormones do not regulate the stress-induced suppression. The present study examines the effects of activational and organizational levels of androgens on stress-induced changes in hippocampal cell proliferation, corticosterone (CORT) and defensive and non-defensive behaviours in adult male rats. In the first experiment, adult male Sprague-Dawley rats were castrated and exposed to trimethyl thiazoline (TMT). Androgen status did not significantly affect TMT-induced suppression in cell proliferation or expression of defensive behaviours. However, castrated males did not show an increase in duration of stretch attends, a risk assessment behaviour. In the second experiment, male pups were injected with the androgen receptor antagonist flutamide, while females were injected with testosterone proprionate (TP) postnatally. Early TP treatment in adult females increased dentate gyrus volume, prevented a regular estrous cycle, increased adult body weight and decreased levels of cell proliferation without causing a stress-induced suppression in cell proliferation compared to oil-treated females. Flutamide-treated males did not significantly differ from oil-treated males on any measure. The results of these studies suggest that the sex difference in stress-induced suppression of hippocampal cell proliferation is not directly regulated by organizational or activational levels of androgens.
Additional file 10 of Host DNA contents in fecal metagenomics as a biomarker for intestinal diseases and effective treatment
Creators: name: Puzi Jiang
name: Senying Lai
name: Sicheng Wu
name: Zhao, Xing-Ming
name: Chen, Wei-Hua
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 60506 Virology

description: Additional file 10: Figure S1. AUC of random forest classifiers based on species/pathways profiles (SRP057027) for predicting untreated CD patients from controls. The labels of y-axis mean the features used for building models. Dif-species/pathways: species/pathways whose abundances are significantly different between untreated CD patients and controls (see Methods); HDC-species/pathways: species/pathways correlated with HDC (see Methods); all-species/pathways: the overall species/pathways.
SDSS-IV MaNGA: Kinematic Asymmetry as An Indicator of Galaxy Interaction in Paired Galaxies
Creators: name: Feng, Shuai
name: Shen, Shi-Yin
name: Yuan, Fang-Ting
name: Riffel, Rogemar A.
name: Pan, Kaike
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The interaction between galaxies is believed to be the main origin of the peculiarities of galaxies, which disturbs not only the morphology but also their kinematics. These disturbed and asymmetric features are the indicators of galaxy interaction. We study the velocity field of the ionized gas of the paired galaxies in the SDSS-IV MaNGA IFU survey. Using the kinemetry package, we fit the velocity field of the ionized gas to quantify the degree of kinematic asymmetry. We find that the star formation rate (SFR) of the paired galaxies with high kinematic asymmetry is significantly enhanced even when the projected separation between the pair members is quite large (dp~100 kpc). On the contrary, no significant SFR enhancement is found for the paired galaxies with low kinematic asymmetry even when their projected separation is small (dp < 30 kpc). Moreover, we also find that the fraction of galaxies with high kinematic asymmetry is much higher in close pairs (dp < 30 kpc) than those with larger dp, which explains well the early statistical findings of the significant SFR enhancement in close pairs. Our new findings illustrate that the kinematic asymmetry is an excellent indicator of galaxy-galaxy interaction strength, which helps us better understand the merging stage of the observed galaxy pairs.
description: 9 pages, 3 figures, accepted by ApJL
Wound healing at the tooth-gingiva interface
Creators: name: Johnston, Sarah Kate
Publisher: name: University of British Columbia
Year: 2010

description: Healing at the junctional epithelium has been studied at the histological level since early animal and human gingivectomy studies were done in the 1970s (Listgarten et al., 1972, Stahl et al., 1972). Relevance of healing in this area relates to regeneration of the periodontal complex, a goal which has, for the most part, eluded clinical periodontology since that time. On a molecular level there has been little research at the tooth-tissue interface and the present study attempts to shed some light on the similarities and differences in this area compared to other areas in the mouth and rest of the body. Examination of several cell adhesion molecules and their respective ligands, as well as the expression of cytokeratins in the area of the junctional epithelium was investigated between 1 and 60 days post wounding. Cytokeratins 16 and 19 were the earliest molecules expressed. Upregulation of these cytokeratins was evident from the earliest time point, at 1 day post wounding. Expression of CK 19 was also observed to a wider extent in the oral epithelium of periodontitis specimens as well as 1 to 7 day post wounding. Expression of integrins β1, β4, and β6 was most intense between 3 and 7 days post wounding and this paralleled the expression of their respective ligands. In addition, expression of these molecules was usually most intense at a distance from the migratory tip suggesting increased activity coronal to the migrating cells. Finally, the expression of p6 was evident at the junctional epithelium of all specimens examined including healthy tissue samples. Taken together this study provides novel information at a molecular level of the cells of the human junctional epithelium during wounding.
title: Interactive media in distance learning for UK farmers: the countryside disc
Creators: name: Edirisingha, Palitha
Publisher: name: The Open University
Year: 1997

description: How might UK farmers benefit from using interactive computer-based media? These farmers need to learn how to change their practices in a rapidly changing economic and social environment. They have difficulty in obtaining suitable training through conventional audio-visual media and face-to-face sessions. How would they benefit from learning at a distance, using computer-based media in their own homes and offices? This thesis presents a naturalistic study of how a number of UK farmers benefited from using the Countryside Disc, one of the few examples available of an interactive training program aimed at farmers. The Disc, which is a computer-controlled laser vision videodisc, required the farmers to act in a complex simulated world (of a farm and its social and ecological environment) in which they received frequent and immediate feedback concerning the consequences of their actions. After a pilot study to develop the methodology, the main study involved observation and recording of 10 farmers' interactions with the Disc. The farmers engaged in hundreds of instructional interactions with the Disc. Each farmer's approach to learning changed as he or she worked through the program, and was clearly related to the learning outcomes for that person. The Disc demanded a deep approach: two farmers who attempted to use a surface approach were unable to continue. The farmers drew heavily on their experience in the real farming world and the frequent feedback prompted them to be reflective on both that experience and the training offered by the Disc. They also encountered a range of navigational problems, most of which could be reduced or eliminated through redesign of the Disc. The most important finding was that farmers, through using the Countryside Disc, received training, in their homes and offices, in (a) gaining deep understanding of the interplay of factors involved in present-day farming, and (b) making profitable farm management decisions - while observing relevant regulations and being responsive to the opinions of interest groups. The thesis concludes with a discussion of the findings in the light of theories advanced by Marton and SÃ¤ljÃ¶ on deep and surface learning, by Laurillard on conversational framework and by SchÃ¶n on reflective practitioners. It includes suggestions for further research.
Influence of disorder on Hc2-anisotropy and flux pinning in MgB2
Creators: name: Eisterer, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The upper critical field and flux pinning in MgB2 single crystals were investigated. The implications of these properties for technical applications are discussed and compared with transport properties of polycrystalline bulk samples and wires. In these untextured materials current percolation is important, especially at high magnetic fields. It is shown that the anisotropy of the upper critical field influences the "irreversibility line" and that the application range of MgB2 is limited by the smallest upper critical field (i.e., for the field direction perpendicular to the boron planes). Disorder, introduced by irradiation with neutrons, enhances the upper critical field, reduces the anisotropy and drastically changes flux pinning. While the enhanced Hc2 and the reduced anisotropy generally improve the transport properties of the polycrystalline samples, the contribution of the radiation-induced defects to flux pinning is small compared to the as-grown defect structure (grain boundary pinning).
description: 7 pages, 13 figures
ЯРАШУВ ИНСТИТУТИ БОРАСИДА ХОРИЖИЙ ДАВЛАТЛАР ТАЖРИБАСИ
Creators: name: Аблакулов, Уткир
Publisher: name: Zenodo
Year: 2024

description: Мазкур мақолада ярашув институти борасида хорижий давлатлар тажрибаси боғлиқ масалалар таҳлил этилган. Шунингдек, мақолада муаллиф жаҳонда бир қанча ҳуқуқ оилалари мавжуд бўлган ярашув институтини қўллаш асослари ва амалиёт жараёнида юзага келаётган бир қанча фарқли жиҳатларини таҳлил қилиб ўтган.
Characterization of spatiotemporal chaos in an inhomogeneous active medium
Creators: name: Bouzat, S.
name: Wio, H. s
name: Mindlin, G. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study a reaction diffusion system of the activator-inhibitor type with inhomogeneous reaction terms showing spatiotemporal chaos. We analyze the topological properties of the unstable periodic orbits in the slow chaotic dynamics appearing, which can be embedded in three dimensions. We perform a bi-orthogonal decomposition analyzing the minimum number of modes necessary to find the same organization of unstable orbits.
description: 13 pages, 6 figs. Physica D (in press)
title: Der Band „Evelyn Richter“ ist ein Glücksfall. Eine Rezension anlässlich der Ausstellung im Museum der bildenden Künste in Leipzig
Creators: name: Schuhmann, Annette
Publisher: name: ZZF - Leibniz-Zentrum für Zeithistorische Forschung: Visual History
Year: 2023

description: Der Band, mit dem Titel „Evelyn Richter“, um den es in diesem Text gehen soll, ist kein Katalog, selbst wenn er im Impressum so bezeichnet wird. Vielmehr ist er ein Glücksfall für alle Bücherliebhaber:innen. Für Visual Historians wird dieser exzellente Band ein Standardwerk zur Fotografie-Geschichte der DDR werden. Und für all jene, die sich für das Leben der großen Fotografin Evelyn Richter in der DDR interessieren, ist es ein Pageturner und eben keines der oft üblichen Coffee Table Books mit der Bezeichnung Katalog, die sich hochglänzend und schwer eher zum Pressen von Pflanzen eignen, als dass sie einen Mehrwert jenseits der Finissage der jeweiligen Ausstellung hätten.
Herausgegeben wurde das Buch „Evelyn Richter“ von der Historikerin und Kuratorin Linda Conze und der Kunstwissenschaftlerin Jeannette Stoschek, im Auftrag des Evelyn Richter & Ursula Arnold Archivs der Ostdeutschen Sparkassenstiftung und dem Museum der bildenden Künste Leipzig. Es erschien im Verlag Spector Books (Leipzig).
Dark sector origin of the KOTO and MiniBooNE anomalies
Creators: name: Datta, Alakabha
name: Kamali, Saeed
name: Marfatia, Danny
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a dark sector model that reproduces the KOTO, MiniBooNE and muon anomalous magnetic moment anomalies. The dark sector is comprised of a light scalar singlet $S$ that has a large coupling to a slightly heavier sterile neutrino that mixes with the active neutrinos. The scalar couples to standard model fermions via Yukawa couplings, and to photons via a higher-dimensional coupling. The KOTO signal is a result of the flavor-changing penguin process $K_L \to π^0 S$ followed by the decay of $S$ to neutrinos. The sterile neutrino produced in neutrino-nucleus scattering at MiniBooNE decays to an active neutrino and $S$, which decays electromagnetically and creates an event excess at low energies.
description: 10 pages, 1 figure, 2 tables. Version to appear in PLB
البيئة والغذاء: التحديات والممكنات
Creators: name: Soliman, Ibrahim
name: Soliman, Ibrahim
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Public Economics
subject: ENVIRONMENT and FOOD: CHALLENGES and POSSIBILITIES
subject: Food
subject: ENVIRONMENT

description: The environment and food relations are highly complicated and interrelated with so any development issues. Therefore, this study presented the subject, in sequences, under several dimensions. These dimensions are (I) Environment and food production. This dimension covers some aspects, which are the land resources and food production, hoernal lakes and food production, water resources and food production, weather changes and food production, and also the industrial development and food production. (2) The environmental standards and foreign trade of food, which includes the following aspects( packaging standards, environmental taxes and penalties, environmental labeling systems, and ISO-14000 series. (3) Organic fertilizers as new opportunities for food exports development of developing counties. (4) An analytical presentation of the environmental agreements approved by WTO members, which are the technical standards agreement and sanitary and phyto-sanitary agreement, (5) The advantages and disadvantages of applying e unique international food trade standards. (6)The last issue is the social appraisal for the impacts of food market's con.) systems.
description: 7th Conference of Agricultural Economists, "Technology and the Egyptian Agriculture", the Egyptian Society of Agricultural Economics 28-29 July, 1999
Phase-sensitive detection of Bragg scattering at 1D optical lattices
Creators: name: Slama, S.
name: von Cube, C.
name: Deh, B.
name: Ludewig, A.
name: Zimmermann, C.
name: Courteille, Ph. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the observation of Bragg scattering at 1D atomic lattices. Cold atoms are confined by optical dipole forces at the antinodes of a standing wave generated by the two counter-propagating modes of a laser-driven high-finesse ring cavity. By heterodyning the Bragg-scattered light with a reference beam, we obtain detailed information on phase shifts imparted by the Bragg scattering process. Being deep in the Lamb-Dicke regime, the scattered light is not broadened by the motion of individual atoms. In contrast, we have detected signatures of global translatory motion of the atomic grating.
description: 4 pages, 4 figures
Additional file 3 of Biotransformation of 5-hydroxymethylfurfural into 2,5-dihydroxymethylfuran by Ganoderma sessile and toxicological assessment of both compounds
Creators: name: Hou, Ya-Nan
name: Wang, Ya-Rong
name: Zheng, Chun-Hui
name: Feng, Kun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Additional file 3: Figure S1. Histopathological analysis of the liver, kidney and spleen (haematoxylin/eosin, 200×) of the rats treated with single dose of 5-HMF or DHMF. Liver sections of all groups showed normal hepatic cells with well-preserved cell structure. Kidney sections of all groups showed renal tissue with normal glomeruli. Spleen section of all groups showed normal splenic architecture with normal lymphoid follicles.
Universal Bounds on Transport in Holographic Systems with Broken Translations
Creators: name: Baggioli, Matteo
name: Li, Wei-Jia
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the presence of universal bounds on transport in homogeneous holographic models with broken translations. We verify numerically that, in holographic systems with momentum dissipation, the viscosity to entropy bound might be violated but the shear diffusion constant remains bounded by below. This confirms the idea that $η/s$ loses its privileged role in non-relativistic systems and that, in order to find more universal bounds, one should rather look at diffusion constants. We strengthen this idea by showing that, in presence of spontaneously broken translations, the Goldstone diffusion constant satisfies a universal lower bound in terms of the Planckian relaxation time and the butterfly velocity. Additionally, all the diffusive processes in the model satisfy an upper bound, imposed by causality, which is given in terms of the thermalization time -- the imaginary part of the first non-hydrodynamic mode in the spectrum -- and the speed of longitudinal sound. Finally, we discuss the existence of a bound on the speed of sound in holographic conformal solids and we show that the conformal value acts as a lower (and not upper) bound on the speed of longitudinal phonons. Nevertheless, we show that the stiffness $\partial p/\partial ε$ is still bounded by above by its conformal value. This suggests that the bounds conjectured in the past have to be considered on the stiffness of the system, related to its equation of state, and not on the propagation speed of sound.
description: v2: improved presentation and added details of the computations, still a lot of bounds summarized in a colored table now
الجدوى الاقتصادية لحائزى ألات الزراعة الألية ونظام التسوية بالليزر دراسة حالة فى محافظة كفر الشيخ
Creators: name: Soliman, Ibrahim
name: Megahed, Maesa
name: Abd Elmaksoud, Salah
name: Soliman, Ibrahim
name: Megahed, Maesa
name: Abd Elmaksoud, Salah
Publisher: name: Unknown
Year: 1995
Subjects: subject: Public Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Economic feasibility for holders of mechanized farming machines and laser levelling systems case study in Kafr El-Sheikh governorate
subject: mechanized farming machines
subject: laser levelling systems
subject: Kafr El-Sheikh

description: Either the Plantation Machines or the laser leveling of soils is new technology that has introduced to Egyptian agriculture within last few years. They have not, extensively, expanded till now, particularly among private enterprisers. This study considered, through a field survey from Kafrt Al Shaikh the estimation of the economic feasibility of investment in such machines and the factors that may affect their profitability and feasibility, as incentives for private sector to invest in such enterprises. to secure a satisfactory competitive supply in the future. The study-used the budgeting methodology, either as an income statement or as investment analysis cash flow statement. The models were applied under current and shadow price of fuel and Oil prices. These machines are not automobile. They are pulled by tractors. The most important results showed that, to achieve resemble profit and feasible return to investment from the seed-drill machine, even at shadow price of fuel and oil. the operating hours should be not lest than 280 hours per year and the met price should be at least L.E. 20 per hour, associated with efficient operating of the tractor to minimize the eons per hour. With respect to the planter, The feasible investment and reasonable profitability require annual operating period nor less than 230 hours at rent price L.E. 30 per hour, and also associated with efficient operation of the tractor to minimize the costs. The laser landlevlling system enterprise achieves a feasible and profitable level, at the current norms of operating period and rent price (LE. 120-150 per hour), even at shadow price of fuel and oil prices. However, the current obstacles that its application is almost restricted within sugar cane area, which is decreasing for sugar beat expansion and needs such operation each successive four years. Also, the total investment in such system M very high. i.e. about L.E. 334000 per set. The custom tariffs should be lowered or exempt fin such nonconventional machines.
description: Egyptian Journal of Agricultural Economics, Volume 5, No 2, September 1995. Published by Egyptian Association of Agricultural Economics, Egypt
EFFECTIVE STRATEGIES OF MEMORIZING NEW WORDS IN ENGLISH
Creators: name: Asrorova, Munis
Publisher: name: Zenodo
Year: 2024

description: Learning new words is an essential part of mastering any language, and English is no exception. Building a strong vocabulary not only enhances communication skills but also improves overall fluency and comprehension. However, memorizing new words can be challenging, especially for non-native English speakers. To make the process more efficient and effective, incorporating certain strategies can greatly aid in retaining and recalling new vocabulary. This article will delve into several highly effective strategies for memorizing new words in English.
Additional file 1 of Biotransformation of 5-hydroxymethylfurfural into 2,5-dihydroxymethylfuran by Ganoderma sessile and toxicological assessment of both compounds
Creators: name: Hou, Ya-Nan
name: Wang, Ya-Rong
name: Zheng, Chun-Hui
name: Feng, Kun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Additional file 1: Table S1. The concrete parameter of optimized biotransformation.
العلاقات الانتاجية للاستزراع السمكى فى اقفاص عائمة فى مصر
Creators: name: Soliman, Ibrahim
name: Gaber, Mohamed
name: Soliman, Ibrahim
name: Gaber, Mohamed
Publisher: name: Unknown
Year: 1988
Subjects: subject: Production Economics
subject: Productivity Analysis
subject: Productivity relations of fish culture in floating cages in Egypt
subject: Egypt
subject: fish

description: Journal of contemporary Egypt, number 451-452, Year 89, July - October, 1997, published by the Egyptian Society of political economy, statistics and legislation Cairo Egypt
RecipeGPT: Generative Pre-training Based Cooking Recipe Generation and Evaluation System
Creators: name: Lee, Helena H.
name: Shu, Ke
name: Achananuparp, Palakorn
name: Prasetyo, Philips Kokoh
name: Liu, Yue
name: Lim, Ee-Peng
name: Varshney, Lav R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Interests in the automatic generation of cooking recipes have been growing steadily over the past few years thanks to a large amount of online cooking recipes. We present RecipeGPT, a novel online recipe generation and evaluation system. The system provides two modes of text generations: (1) instruction generation from given recipe title and ingredients; and (2) ingredient generation from recipe title and cooking instructions. Its back-end text generation module comprises a generative pre-trained language model GPT-2 fine-tuned on a large cooking recipe dataset. Moreover, the recipe evaluation module allows the users to conveniently inspect the quality of the generated recipe contents and store the results for future reference. RecipeGPT can be accessed online at https://recipegpt.org/.
description: Accepted to WWW 2020. Demo track paper
Additional file 2 of Biotransformation of 5-hydroxymethylfurfural into 2,5-dihydroxymethylfuran by Ganoderma sessile and toxicological assessment of both compounds
Creators: name: Hou, Ya-Nan
name: Wang, Ya-Rong
name: Zheng, Chun-Hui
name: Feng, Kun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Additional file 2: Table S2. Final concentration of drugs used in cells.
title: ÐÐ¾Ð´ÐµÐ»Ð¸ Ð¸ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¸Ð¼Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸ Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ¾Ð² ÑÐµÐ¾ÑÐ¸Ð¸ Ð¸Ð³Ñ
title: ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÑ 2.3.4. Ð£Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ
titleType: Subtitle
Creators: name: ÐÐ¸Ð½ÑÑÐº, ÐÐ»ÐµÐºÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÐÐ³Ñ ÑÐµÐ¾ÑÐ¸Ñ
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description: ÐÐ¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð° Ð½Ð° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¸ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð±Ð°Ð·Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ° ÑÐµÐ¾ÑÐ¸Ð¸ Ð¸Ð³Ñ Ð² ÑÐ°ÑÑÐ¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð±Ð°Ð·Ð¾Ð²Ð¾Ð¹ ÑÐµÐ¾ÑÐµÑÐ¸ÐºÐ¾-Ð¸Ð³ÑÐ¾Ð²Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð·Ð°Ð¸Ð½ÑÐµÑÐµÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÑÐ¾ÑÐ¾Ð½ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ° Ð¸ Ð¼ÐµÑÐ¾Ð´Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ°ÑÑÐ½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð¾ÑÐ´ÐµÐ»ÑÐ½ÑÑ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¹ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð±Ð°Ð·Ð¾Ð²Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸. ÐÐºÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð·Ð°ÐºÐ»ÑÑÐ°ÐµÑÑÑ Ð² Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ð¸ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÐµÐ¼ÑÑ ÑÐµÑÐµÐ½Ð¸Ð¹ Ð¿Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¸Ð¼Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸ Ð¸ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐµÐ¼ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ð¸ ÐºÐ°ÑÐµÑÑÐ²Ð° Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ¾Ðº. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð±Ð°Ð·Ð¾Ð²Ð°Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÐºÐ¾-Ð¸Ð³ÑÐ¾Ð²Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð·Ð°Ð¸Ð½ÑÐµÑÐµÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÑÐ¾ÑÐ¾Ð½ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ°, Ð¿ÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð½Ð°Ñ Ð´Ð»Ñ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐ°ÑÑÐ½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¹, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ñ Ð² ÑÐ¾Ð´Ðµ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð½Ð°ÑÑÐ½Ð¾-Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ°, Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¼ÐµÑÐ¾Ð´Ð°, ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐµÐ´Ð»Ð°Ð³Ð°ÐµÐ¼Ð¾Ð³Ð¾ Ð² Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ. Ð¡Ð¾Ð²Ð¼ÐµÑÑÐ½Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°Ð±Ð¾ÑÑ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑ Ð¾ÑÐµÐ½Ð¸Ð²Ð°ÑÑ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾ÑÑÑ ÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½ÑÑ Ð¸ÑÑÐ¾Ð´Ð¾Ð² Ð¾ÑÐ´ÐµÐ»ÑÐ½ÑÑ ÑÑÑÐ°ÑÐµÐ³Ð¸ÑÐµÑÐºÐ¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¹, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐµÐ½Ð¸Ð²Ð°ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð¼ÐµÑ Ð¿Ð¾ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð¸Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾ÑÑÐ¸.
New aspects on Current enhancement in Brownian motors driven by non Gaussian noises
Creators: name: Bouzat, S.
name: Wio, H. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Recent studies on Brownian motors driven by colored non Gaussian noises have shown that the departure of the noise distribution from Gaussian behavior induces an enhancement of its current and efficiency. Here we discuss some new aspects of this phenomenon focusing in some analytical results based in an adiabatic approximation, and in the analysis of the long probability distribution tails' role.
description: 11 pages, 4 figs. Physica A (in press)
Maternal diet fat alters milk fatty acids, suckling pups’ intestinal phospholipid fatty acids and intestinal responsiveness to experimental colitis
Creators: name: Mundra, Harmeet Kaur
Publisher: name: University of British Columbia
Year: 2010

description: The quantity and quality of dietary lipids is crucial for infant growth and development. The significance of the differences in n-6 and n-3 fatty acids in human milk, and the effect of maternal diet fat on various inflammatory mediators in the gastrointestinal tract of infants have received little attention. The aims of the present study were to determine the effect of maternal dietary fat composition on rat milk, intestinal phospholipid fatty acids and responsiveness to experimental colitis in suckling rat pups. Female rats were fed isocaloric diets varying only in fat composition throughout gestation and lactation. The oils used were high in n-3 (canola oil, 8% 18:3n-3), n-6 (safflower oil, 72% 18:2n-6), or n-9 (high oleic acid safflower oil, 78% 18:ln-9) fatty acids, n=6 dams/ group. A reference group of rats fed chow (37% 18:2n-6, 4% 18:3n-3, l%20:5n-3, 2% 22:6n-3) were also studied. Colitis was induced in the pups on postnatal day 15 by intra-rectal dinitrobenzene sulfonic acid (DNBS) administration, with vehicle (50% ethanol) and procedure (0.9% saline) control pups. Jejunal and colonic phospholipids (phosphatidylcholine and phosphatidylethanolamine) and milk fatty acids were determined. The distal colon was assessed for macroscopic damage, histology and myeloperoxidase activity (MPO). The high n-6 maternal diet increased n-6 fatty acids, whereas the high n-3 diet increased n-3 fatty acids in milk and pup jejunal and colonic phospholipids. Maternal diet, milk and pup intestinal n-6/n-3 fatty acid ratios increased significantly in order: high 18:3n-3 < high 18:ln-9 < high 18:2n-6. DNBS administration in pups in the high 18:2n-6 group led to severe colitis with higher colonic damage scores and MPO activity than in 18:ln-9 and 18:3n-3 groups. High maternal dietary 18:3n-3 intake was associated with colonic damage scores and MPO activity that were not significantly different from ethanol controls. The composition of rat milk, pups intestinal fatty acids and n-6/n-3 fatty acid ratios in reference group were similar to high 18:3n-3 group, however, DNBS colitis was associated with higher colonic damage scores and MPO activity compared to high 18:3n-3 group. To conclude the maternal dietary fat influences the composition of rat milk fatty acids, intestinal lipids and responsiveness to experimental colitis in nursing offspring. Higher dietary n-3 fatty acids attenuate intestinal responsiveness to colitis. To the best of our knowledge, this is the first report to suggest that the composition of milk fatty acids is associated with the nursing offspring's susceptibility to chemically-induced colitis.
Discrete model of Yang-Mills equations in Minkowski space
Creators: name: Sushch, Volodymyr
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T13, 39A12

description: Using methods of differential geometry, a discrete analog of the Yang-Mills equations in Minkowski space is constructed. The gauge transformation law in a discrete formulation is given and gauge invariance of discrete Yang-Mills equations is studied. Difference self-dual and anti-self-dual equations with respect to the Lorentz metric are presented.
description: 13 pages
Green Economies Impact with Methane Reduction in livestock production systems on Latin America
Creators: name: Zúniga-González, Carlos Alberto
name: Blanco-Roa, Noel Ernesto
name: Berrios, Roberto
name: Martínez-Avendaño, Jairo
name: Navas-Calderón, José
name: Zúniga-González, Carlos Alberto
name: Blanco-Roa, Noel Ernesto
name: Berrios, Roberto
name: Martínez-Avendaño, Jairo
name: Navas-Calderón, José
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Productivity Analysis
subject: Resource /Energy Economics and Policy
subject: Economía Verde
subject: Bio Economía
subject: Bio Tecnología
subject: Índices de Malmquist
subject: Productividad
subject: Emisiones de Metano.

description: El estudio asumió como fin medir el nivel de productividad de las economías verdes en la actividad pecuaria (leche y carne) de América Latina donde las emisiones de metano (CH4) por fermentación entérica son consideradas. Para hacer estas mediciones se utilizó el método Tier 1 del IPCC para determinar las emisiones de CH4 y para medir su impacto en la productividad se utilizó el enfoque de análisis de datos envolventes (DEA), estimando los índices de Malmquist. Los resultados evidencian que Ecuador se destaca con una productividad total de los factores con un ritmo de crecimiento de un 10 %, durante el periodo de 1980-2009, y que este crecimiento se debió fundamentalmente al cambio tecnológico que representó un 4 % en el ritmo de crecimiento de la producción pecuario donde la tecnología implica prácticas para la reducción de metano, por la eficiencia de la mano de obra (ganadería) de valoró un 0.05 % de desmejora. En este sentido, encontramos que Costa Rica, Paraguay, Uruguay, Colombia y Guatemala se destacaron con un 7 y 5 % en sus ritmos de crecimiento para alcanzar una economía verde pecuaria.
Renormalization group theory of percolation on pseudo-fractal simplicial and cell complexes
Creators: name: Sun, Hanlin
name: Ziff, Robert M.
name: Bianconi, Ginestra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Simplicial complexes are gaining increasing scientific attention as they are generalized network structures that can represent the many-body interactions existing in complex systems raging from the brain to high-order social networks. Simplicial complexes are formed by simplicies, such as nodes, links, triangles and so on. Cell complexes further extend these generalized network structures as they are formed by regular polytopes such as squares, pentagons etc. Pseudo-fractal simplicial and cell complexes are a major example of generalized network structures and they can be obtained by gluing $2$-dimensional $m$-polygons ($m=2$ triangles, $m=4$ squares, $m=5$ pentagons, etc.) along their links according to a simple iterative rule. Here we investigate the interplay between the topology of pseudo-fractal simplicial and cell complexes and their dynamics by characterizing the critical properties of link percolation defined on these structures. By using the renormalization group we show that the pseudo-fractal simplicial and cell complexes have a continuous percolation threshold at $p_c=0$. When the pseudo-fractal structure is formed by polygons of the same size $m$, the transition is characterized by an exponential suppression of the order parameter $P_{\infty}$ that depends on the number of sides $m$ of the polygons forming the pseudo-fractal cell complex, i.e., $P_{\infty}\propto p\exp(-α/p^{m-2})$. Here these results are also generalized to random pseudo-fractal cell-complexes formed by polygons of different number of sides $m$.
description: (11 pages,4 figures)
Bulk Mediated Surface Diffusion: Non Markovian Desorption with Finite First Moment
Creators: name: Revelli, Jorge A.
name: Budde, Carlos. E.
name: Prato, Domingo
name: Wio, Horacio S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Here we address a fundamental issue in surface physics: the dynamics of adsorbed molecules. We study this problem when the particle's desorption is characterized by a non Markovian process, while the particle's adsorption and its motion in the bulk are governed by a Markovian dynamics. We study the diffusion of particles in a semi-infinite cubic lattice, and focus on the effective diffusion process at the interface $z = 1$. We calculate analytically the conditional probability to find the particle on the $z=1$ plane as well as the surface dispersion as functions of time. The comparison of these results with Monte Carlo simulations show an excellent agreement.
description: 16 pages, 7 figs. European Physical Journal B (in press)