cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Note on the Size of the Largest Ball Inside a Convex Polytope
Creators: name: Barany, Imre
name: Simanyi, Nandor
Publisher: name: arXiv
Year: 2005
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52B11, 52B12

description: Let $m>1$ be an integer, $B_m$ the set of all unit vectors of $\Bbb R^m$ pointing in the direction of a nonzero integer vector of the cube $[-1, 1]^m$. Denote by $s_m$ the radius of the largest ball contained in the convex hull of $B_m$. We determine the exact value of $s_m$ and obtain the asymptotic equality $s_m\sim\frac{2}{\sqrt{\log m}}$.
DEMAND AND SUPPLY ANALYSIS OF CORN IN INDONESIA FROM 1970-1988
Creators: name: Ali, Mohamad Rum
name: Ali, Mohamad Rum
Publisher: name: Unknown
Year: 1989
Subjects: Crop Production/Industries
Demand and Price Analysis

description: Corn is the second most important food crop in Indonesia. Harvested area has fluctuated around an average of 2.7 million hectares between 1970-1988. This is roughly one third of the area devoted to rice and twice that of cassava. Production is almost entirely a smallholder activity, which provides income and staple food for over 10 million farm households who rarely farm more than 2 hectares of land. Corn production in Indonesia is concentrated on Java and Madura, which account for almost 75 percent of production. On Java and Madura, almost all corn is produced on the eastern half of the land area. The province of East Java produces 45 percent of the nation's total output. The land types used for corn production are "tegalan" (rain-fed) and "sawah" (floodable rice land). The two tegalan systems differ from each other in the frequency of corn harvests and are classified as systems with multiple or a single corn crop per year. The two sawah systems are characterized by the degree of water control. Irrigated sawah has permanent irrigation infrastructure, while rain-fed sawah is flooded by rainfall runoff. Prior to the mid-1970's farmers used mostly local, low yielding corn varieties which produced less than 1 tone per hectare. By 1987, yield had increased to 1.9 tons. The release and spread of new, improved corn varieties since 1978 are largely responsible for growth in yield. Although corn is a secondary foodcrop to rice, it is a major source of calories and protein in the Indonesian diet. According to the food balance sheet of Indonesia, corn directly consumed by humans accounts for about 9 percent of all calories and 12 percent of protein intake. It is especially important in the diet of the poor, since it is cheaper than rice. Three-quarters of Indonesia's corn production is consumed directly by humans as a staple foodstuff. Corn is also a major ingredient in livestock feed, which ultimately is the largest component in meat and eggs. The modern feed industry was established in 1972 and has expanded rapidly through the end of the decade. However, it is not the main source of demand for corn. In the mid 1980's, livestock feeding absorbed an estimated one-fifth of annual corn production. The primary purpose of this study is not to examine or evaluate the existing corn program or policies, but rather to study factors affecting the demand for and supply of corn in Indonesia and to project production, total demand and per capita consumption in the future. The objectives of this study are as follows: 1) to select appropriate variables for establishing an estimated demand equation; 2) to select appropriate variables for establishing an estimated supply equation; and 3) to apply two estimated equations for generating projection of production, total demand and per capita consumption of corn to the year 2000.
O/H in the Local Bubble
Creators: name: Oliveira, Cristina
name: Dupuis, Jean
name: Chayer, Pierre
name: Moos, H. Warren
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new measurements of the oxygen gas-phase abundance along four sightlines probing gas inside the Local Bubble, using data obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) and the Hubble Space Telecope (HST). Combining these with seven previously published N(O I) and N(H I) measurements we determine a mean O/H ratio for the Local Bubble, (O/H) = (3.45 +/- 0.19)x10^(-4) (1 sigma in the mean). Our result is virtually identical to O/H = (3.43 +/- 0.15)x10^(-4) derived from data for sightlines probing gas well outside the Local Bubble. In contrast to the D/O and D/H ratios, which seem to have different values beyond the Local Bubble, our results show that the O/H ratio is constant and single-valued both inside and outside the Local Bubble, for low density sightlines, with column densities up to log N (H) ~ 21. In addition, the similarity of the two values above suggests that the net effect of the uncertain O I f-values in the FUSE bandpass is not significant. Taking into account the latest determinations of the Solar abundance of oxygen, our result implies that ~25% of the oxygen in the Local Bubble is depleted onto dust grains. The similarity of the value for O/H along low average density sightlines in the Local Bubble with that of denser sightlines beyond may permit a limit on the diluting effects of infalling low metallicity gas.
description: Accepted for publication in the Astrophysical Journal
Sporobolomyces primogenomicus Q. M. Wang & F. Y. Bai 2020, sp. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Tremellomycetes
Tremellales
Tremellaceae
Sporobolomyces
Sporobolomyces primogenomicus

description: Sporobolomyces primogenomicus Q.M. Wang & F.Y. Bai sp. nov. MycoBank MB828838. Fig. 16M, N.
 Etymology: the specific epithet primogenomicus refers to the fact that the type strain was the first sequenced genome in the Pucciniomycotina.
 Culture characteristics: In YM broth, after 7 d at 17 °C, cells are ellipsoidal, 2.0– 3.8 × 3.0–5.6 μm and single, budding is polar (Fig. 16M), a sediment is formed. After 1 mo at 17 °C, a ring and sediment are present. On YM agar, after 1 mo at 17 °C, the streak culture is red, butyrous, shiny. The margin is entire. In Dalmau plate culture on corn meal agar, pseudohyphae are not formed. Sexual structures are not observed on YM, PDA, V8 and CM agar. Ballistoconidia are allantoid or reniform, 2.0 –2.7 × 3.3– 5.8 μm (Fig. 16N).
 Physiological and biochemical characteristics: Glucose, galactose, L-sorbose, sucrose, maltose, cellobiose, trehalose, raffi- nose, melezitose, soluble starch, D-xylose, L-arabinose, Darabinose, D-ribose, glycerol, ribitol, D-mannitol, D-glucitol, Methyl-α- D-glucoside, salicin, DL-lactate, succinate and citrate (delayed) are assimilated as sole carbon sources. Lactose, melibiose, inulin, L-rhamnose, erythritol, galactitol and myo-inositol are not assimilated. Potassium nitrate (weak) is assimilated as sole nitrogen sources.
 Physiologically, Sp. primogenomicus differs from its closely related species Sp. ruberrimus in its ability to assimilate L-sorbose, soluble starch, D-xylose, L-arabinose, D-arabinose, Dribose, ribitol, D-glucitol, Methyl-α- D-glucoside and DL-lactate (Table S1.29). The data of carbon assimilation were collected from Yamazaki & Komagata (1983).
 Typus: Japan, Kanto region, obtained from a willow leaf, 1983, M. Yoshizawa (holotype JCM 8242 T preserved in a metabolically inactive state, ex-type CBS 15935 = IAM13481).
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 123, DOI: 10.1016/j.simyco.2020.01.002
Imom al-Buxoriyning "Al-adab al-Mufrad asarining bugungi kunda  ahamiyati
Creators: name: Bahodirov Dilshod, Toshkent axborot texnologiyalari  universiteti Samarqand filiali AX23-08 guruh talabasi
name: Ilmiy rahbar: X.U.Samatov
Publisher: name: Zenodo
Year: 2024

description: ushbu  maqolada  biz-  Imom  al-Buxoriyning-“al-adab  al-Mufrad” asarida  payg’ambarimizning  odob-axloq  to’g’risidagi  hadislari  hamda  yoshlarga  o’rnak bo’lishi haqida to’xtalib o’tamiz.
Detecting Stance in Media on Global Warming
Creators: name: Luo, Yiwei
name: Card, Dallas
name: Jurafsky, Dan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Citing opinions is a powerful yet understudied strategy in argumentation. For example, an environmental activist might say, "Leading scientists agree that global warming is a serious concern," framing a clause which affirms their own stance ("that global warming is serious") as an opinion endorsed ("[scientists] agree") by a reputable source ("leading"). In contrast, a global warming denier might frame the same clause as the opinion of an untrustworthy source with a predicate connoting doubt: "Mistaken scientists claim [...]." Our work studies opinion-framing in the global warming (GW) debate, an increasingly partisan issue that has received little attention in NLP. We introduce Global Warming Stance Dataset (GWSD), a dataset of stance-labeled GW sentences, and train a BERT classifier to study novel aspects of argumentation in how different sides of a debate represent their own and each other's opinions. From 56K news articles, we find that similar linguistic devices for self-affirming and opponent-doubting discourse are used across GW-accepting and skeptic media, though GW-skeptical media shows more opponent-doubt. We also find that authors often characterize sources as hypocritical, by ascribing opinions expressing the author's own view to source entities known to publicly endorse the opposing view. We release our stance dataset, model, and lexicons of framing devices for future work on opinion-framing and the automatic detection of GW stance.
description: 9 pages, 6 figures
Tangentially Active Polymers in Cylindrical Channels
Creators: name: Martín-Roca, José
name: Locatelli, Emanuele
name: Bianco, Valentino
name: Malgaretti, Paolo
name: Valeriani, Chantal
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present an analytical and computational study characterizing the structural and dynamical properties of an active filament confined in cylindrical channels. We first outline the effects of the interplay between confinement and polar self-propulsion on the conformation of the chains. We observe that the scaling of the polymer size in the channel, quantified by the end-to-end distance, shows different anomalous behaviours at different confinement and activity conditions. Interestingly, we show that the universal relation, describing the ratio between the end-to-end distance of passive polymer chains in cylindrical channels and in bulk is broken by activity. Finally, we show that the long-time diffusion coefficient under confinement can be rationalised by an analytical model, that takes into account the presence of the channel and the elongated nature of the polymer.
description: 11 pages, 8 figures and supplemental 5 pages, 7 figures; Submission to SciPost
Soft Gravity by Squaring Soft QED on the Celestial Sphere
Creators: name: Kalyanapuram, Nikhil
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We recast the soft $S$-matrices on the celestial sphere as correlation functions of certain $2$-dimensional models of topological defects. In pointing out the double copy structure between the soft photon and soft graviton cases, we arrive at a putative classical double copy between the corresponding topological models and a rederivation of gauge invariance and the equivalence principle as Ward identities of the $2$-dimensional theories.
description: v3: 12 pages, references added
title: Vergleich von synchronen Reluktanzmotoren ohne und mit Ferritmagnetunterstützung
Creators: name: Neusüs, Sascha
Publisher: name: UNSPECIFIED
Year: 2021

description: Diese Arbeit befasst sich mit der Auslegung und Vermessung von umrichtergespeisten synchronen Reluktanzmotoren ohne und mit Ferritmagnetunterstützung. Für die Auslegung des synchronen Reluktanzrotors werden sowohl direkte Methoden (auf Basis von analytisch bestimmten Dimensionierungsregeln und Parameterstudien) als auch die Mehrziel-Optimierung verwendet. Bezüglich eines hohen Leistungsfaktors, der für den Betrieb an der Spannungsgrenze des Frequenzumrichters nötig ist, führen beide Methoden auf ähnliche Rotoren. Daher wird die weniger berechnungsintensive, direkte Methode verwendet, um einen Prototyp-Reluktanzrotor für den Stator eines vorhandenen 2p = 4-poligen, mit einem Wellenlüfter oberflächengekühlten PN = 11 kW-Normasynchronmotors auszulegen. Zur Auslegung des synchronen Reluktanzrotors mit Ferritmagneten wird die Mehrziel-Optimierung genutzt, da die Parametrierung der Rotorgeometrie einfacher an die Verwendung kommerziell verfügbarer Standardmagnete angepasst werden kann. Aufgrund des Risikos der irreversiblen Entmagnetisierung der Ferritmagnete (geringe Koerzitivfeldstärke) werden insbesondere für diesen Prototyp-Reluktanzrotor numerische Berechnungen (Finite-Elemente-Methode) bei dem dreiphasigen Stoßkurzschluss durchgeführt. Im ungünstigen Fall einer niedrigen Magnettemperatur (positiver Temperaturkoeffizient der Koerzitivfeldstärke) besteht demnach sogar das Risiko, dass die Magnete in der Nähe des Luftspalts entgegengesetzt zur ursprünglichen Magnetisierungsrichtung magnetisiert werden. Als mögliche Maßnahme zur Wiederaufmagnetisierung der Ferritmagnete wird das Zuschalten eines extern angetriebenen und bereits mit Synchrondrehzahl rotierenden Motors an ein dreiphasiges Sinusnetz untersucht. Sowohl die teilweise irreversible Entmagnetisierung durch den dreiphasigen Stoßkurzschluss als auch die erfolgreiche Wiederaufmagnetisierung werden durch Messergebnisse bestätigt. Die weiteren Messungen zeigen, dass die im Bemessungspunkt (nN = 500 /min, MN = 70 Nm) bei Frequenzumrichterbetrieb gemessenen direkten Wirkungsgrade des synchronen Reluktanzmotors ohne Ferritmagnete η = 92,4 % (cos ϕ = 0,80) und mit Ferritmagneten η = 93,6 % (cos ϕ = 0,88) höher als beim ursprünglichen Käfigläufer-Asynchronmotor η = 87,5 % (cos ϕ = 0,85) sind, was auch für den teilweise irreversibel entmagnetisierten Prototyp nach dem dreiphasigen Stoßkurzschluss η = 93,2 % (cos ϕ = 0,83) zutrifft. Durch die geringere Magnetisierung sinkt für diesen Prototyp aber der Wirkungsgrad im Konstantleistungsbereich (2nN = 3000 /min und MN/2 = 35 Nm) stärker von ursprünglich η = 90,0 % (cos ϕ=0,93) auf η = 88,1 % (cos ϕ = 0,79) nach dem dreiphasigen Stoßkurzschluss, was aber deutlich höher als beim synchronen Reluktanzmotor mit η = 83,8 % (cos ϕ = 0,68) ist.
Elicitation to transcribe interview with canoe builders
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: nkr

description: One .wav audio file for an elicitation to transcribe an interview with canoe builders. Corresponds to page 237 in Notebook 1.
Effects of Vermicompost, Tithonia Green Manure and Urea on Quality of Swiss Chard (Beta Vulgaris L. Var. Cicla L.) in Kenya
Creators: name: Rioba, N.B.
name: Opala, P.A.
name: Bore, J.K.
name: Ochanda, S.O.
name: Sitienei, K.
name: Rioba, N.B.
name: Opala, P.A.
name: Bore, J.K.
name: Ochanda, S.O.
name: Sitienei, K.
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agricultural and Food Policy
subject: Swiss chard
subject: vermicompost
subject: tithon
subject: Urea
subject: polyphenols
subject: vitamin C

description: Swiss chard (Beta vulgaris L. var. cicla) is a popular vegetable because it is nutritious, robust, easy to grow. It requires regular applications of nitrogen, which causes accumulation of oxalates and nitrates within the plant. Oxalates and nitrates are known health hazards but the use of organic fertilizers have been shown to reduce their accumulation and to promote accumulation of beneficial phytochemicals. We therefore determined the effect vermicompost (VC), Tithonia diversifolia green manure (Tithonia) and urea on the quality of Swiss chard. The experiment was laid out in a Randomised Complete Block Design (RCBD) replicated three times with thirteen treatments. Leaf nutrient elements, TSS, polyohenols, Vitamin C and antioxidants were determined using standard procedures. Treatment effects were significant only for aluminum, phosphorus and calcium. The values were highest on VC 50 kg N ha-1 and Urea 50 kg N ha-1 , Tithonia 50 kg N ha-1 + Urea 50 kg N ha-1 , and VC 50 kg N ha-1 , and VC 100 kg N ha-1 for aluminum, phosphorus and calcium, respectively. Lowest response was reported on Tithonia 50 kg N ha-1 , control and Tithonia 50 kg N ha-1 + Urea 50 kg N ha-1 for aluminum, phosphorus and calcium, respectively. The treatments significantly influenced the percentage of polyphenols, vitamin C and the antioxidant capacity while no significance was reported for total soluble solutes. The polyphenols and vitamin C content were highest on Tithonia 100 kg N ha-1 and control, respectively. Low polyphenol and vitamin C contents were recorded on VC 50 kg N ha-1 and VC 100 kg N ha-1 , respectively. A similar trend was observed for antioxidant activity since a positive correlation was observed between the polyphenols and vitamin C and the antioxidant activity. Tithonia green manure improves Swiss chard quality.
DEVELOPMENT PLANS IN BOLIVIA: PROBLEMS AND PROSPECTS
Creators: name: Guzman, Grover
name: Guzman, Grover
Publisher: name: Unknown
Year: 1974
Subjects: International Development

description: Generally, economists have analyzed development planning in developing countries under the following aspects. First, attention has focused on the plan strategies, policies and targets. Special emphasis is often devoted to whether the targets have been or could be achieved over the relevant time periods. Secondly, in recent years attention has been given to the techniques of planning where the methodology is also critically examined and evaluated. In both approaches it is explicitly or implicitly acknowledged that development planning cannot be analyzed and normally evaluated in abstraction from the economies for which they are formulated and that their normative evaluation must be related to the stated goals. Though planners often state categorically that they rely on no single model of economic development in their planning framework and policy approaches, their approaches tend to be selective and one can often identify the models on which they relied most heavily as well as those which they silently rejected or neglected. The purpose of this paper is to analyze the development planning process adopted in Bolivia from 1962 to 1974, including the revision of development plans.
Variable guiding strategies in multi-exits evacuation: Pursuing balanced pedestrian densities
Creators: name: Ren, Huan
name: Yan, Yuyue
name: Gao, Fengqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: I.6.6; J.4
subject: 91C20, 91-10

description: Evacuation assistants and their guiding strategies play an important role in the multi-exits pedestrian evacuation. To investigate the effect of guiding strategies on evacuation efficiency, we propose a force-driven cellular automaton model with adjustable guiding attractions imposed by the evacuation assistants located in the exits. In this model, each of the evacuation assistants tries to attract the pedestrians in the evacuation space towards its own exit by sending a quantifiable guiding signal, which may be adjusted according to the values of pedestrian density near the exit. The effects of guiding strategies pursuing balanced pedestrian densities are studied. It is observed that the unbalanced pedestrian distribution is mainly yielded by a snowballing effect generated from the mutual attractions among the pedestrians, and can be suppressed by controlling the pedestrian densities around the exits. We also reveal an interesting fact that given a moderate target density value, the density control for the partial regions (near the exits) could yield a global effect for balancing the pedestrians in the rest of the regions and hence improve the evacuation efficiency. Our findings may contribute to give new insight into designing effective guiding strategies in the realistic evacuation process.
description: 13 pages, 12 figures
Metric Differential Privacy at the User-Level Via the Earth Mover's Distance
Creators: name: Imola, Jacob
name: Chowdhury, Amrita Roy
name: Chaudhuri, Kamalika
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Metric differential privacy (DP) provides heterogeneous privacy guarantees based on a distance between the pair of inputs. It is a widely popular notion of privacy since it captures the natural privacy semantics for many applications (such as, for location data) and results in better utility than standard DP. However, prior work in metric DP has primarily focused on the item-level setting where every user only reports a single data item. A more realistic setting is that of user-level DP where each user contributes multiple items and privacy is then desired at the granularity of the user's entire contribution. In this paper, we initiate the study of one natural definition of metric DP at the user-level. Specifically, we use the earth-mover's distance ($d_\textsf{EM}$) as our metric to obtain a notion of privacy as it captures both the magnitude and spatial aspects of changes in a user's data.
 We make three main technical contributions. First, we design two novel mechanisms under $d_\textsf{EM}$-DP to answer linear queries and item-wise queries. Specifically, our analysis for the latter involves a generalization of the privacy amplification by shuffling result which may be of independent interest. Second, we provide a black-box reduction from the general unbounded to bounded $d_\textsf{EM}$-DP (size of the dataset is fixed and public) with a novel sampling based mechanism. Third, we show that our proposed mechanisms can provably provide improved utility over user-level DP, for certain types of linear queries and frequency estimation.
description: To appear at ACM CCS 2024
Stamm, Heinz-Meinolf: Luthers Stellung zum Ordensleben
Creators: name: Halkenhäuser, Johannes
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 30 Nr. 4 (1981): Ökumenische Rundschau, Band 30, Heft 4
The Discovery of a P Cygni Analog in M31
Creators: name: Massey, Philip
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present spectroscopy and discuss the photometric history of a previously obscure star in M31. The spectrum of the star is an extremely close match to that of P Cygni, one of the archetypes of Luminous Blue Variables (LBVs). The star has not shown much variability over the past 40 years ($<0.2$ mag), although small-scale (0.05 mag) variations over a year appear to be real. Nevertheless, the presence of a sub-arcsecond extension around the star is indicative of a past outburst, and from the nebula's size (0.5 pc diameter) we estimate the outburst took place roughly 2000 yrs ago. P Cygni itself exhibits a similar photometric behavior, and has a similar nebula (0.2 pc diameter). We argue that this may be more typical behavior for LBVs than commonly assumed. The star's location in the HR diagram offers substantial support for stellar evolutionary models that include the effects of rotation, as the star is just at a juncture in the evolutionary track of a 85Mo star. The star is likely in a transition from an O star to a late-type WN Wolf-Rayet.
description: To appear in ApJ (Letters)
SOCIO-ECONOMIC STUDY OF THREE VILLAGES IN BAUCHI STATE, NIGERIA (WITH EMPHASIS ON LABOR UTILIZATION)
Creators: name: Ingawa, Salisu Ahmed
name: Ingawa, Salisu Ahmed
Publisher: name: Unknown
Year: 1979
Subjects: Labor and Human Capital

description: Although agriculture no longer serves as the leading contributor to Nigeria's Gross National Product (GNP) and leading foreign exchange earner, it still is the leading employment sector of the vast majority of Nigerian population. The decline in importance of the agricultural sector in terms of GNP has been partly due to the phenomenal growth in the petroleum sector of the economy. Other factors of relevance to this decline include a long period of adverse weather conditions, negative overall terms of trade in relation to other sectors of the economy as well as a very disturbing rate of farm urban migration. The objectives of this paper stem from the realization that in order to solve the problems plaguing small farmer agriculture, as in the study area, detailed microeconomic studies and analysis of operations are needed. Without detailed information about farm operations, it is unlikely that effective remedial measures could be devised to alleviate the problems. Due to the wide scope of the subject, the paper will mainly concentrate on labor resource availability, use, and productivity.
WATER MANAGEMENT AND EXTERNALITIES IN TROPICAL ARID- AND SEMI-ARID AGRICULTURE: AN ECONOMIC APPROACH BASED ON EXAMPLES OF NITRATE LOSSES AND SALINIZATION
Creators: name: Baird, Kathrine E.
name: Baird, Kathrine E.
Publisher: name: Unknown
Year: 1989
Subjects: Resource /Energy Economics and Policy

description: This paper summarized the theory of welfare economics and natural resource allocation, and illustrated how application of this theory can lead to Pareto improvements in the design of irrigation systems in tropical arid- and semi-arid agricultural systems. Drawing on the two examples of nitrate losses and salinization, the paper concludes that economic analysis can help design policies to conserve natural resource stocks, but that such analysis is limited by insufficient data, methodological difficulties, and by a lack of integration between natural and social research. A portion of the paper discusses the physical and biological processes associated with nitrate losses and salinization, and review research on their magnitudes in arid- and semi-arid zones. This review demonstrates that certain combinations of hydrological conditions and farming systems will likely result in nitrate losses and/or salinization. The design of irrigated systems in these cases might be improved by analyzing the externalities associated with these phenomena. There are two policy approaches - curative and preventive - to mitigate losses from nitrate pollution and salinization. Preventive policies, which entail directive measures (e.g., standards) or the creation of economic incentives and disincentives, are generally more cost-effective and risk-reducing. Taxes, however, should be avoided where natural resource demand is inelastic. Combining subsidies with taxes allows greatest flexibility in cost distribution, but reduces the net benefits from mitigation. Given the institutional weakness of most lower income countries, governments attempting improved management of natural resource stocks must rely primarily on conservation subsidies rather than on standards, taxes, or curative measures. More generally, informed judgments on the magnitude of externalities associated with any one natural and social environment depend on information being available to economists. Yet comparative data on agro-ecological research should be designed to illuminated the policy implications of natural resource management. The effects of irrigation on soil fertility and on water quality are two high-priority topics. Economists need to evaluate the contributions of natural resource quality to individual well-being. Policy makers meanwhile may choose to establish qualitative standards for important natural resources, and to distinguish among broad categories of natural resources based on their substitutability. Economists also must understand how current policies generate farm-level incentives for overuse of natural resources, since corrective policies may vary for different incentives. Finally, economists should closely examine the degree to which the use of high discount rates in economic analysis leads to environmental degradation by reducing the value of future benefits and costs.
Post-Newtonian corrections to the motion of spinning bodies in NRGR
Creators: name: Porto, Rafael A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we include spin and multipole moment effects in the formalism used to describe the motion of extended objects recently introduced in hep-th/0409156. A suitable description for spinning bodies is developed and spin-orbit, spin-spin and quadrupole-spin Hamiltonians are found at leading order. The existence of tidal, as well as self induced finite size effects is shown, and the contribution to the Hamiltonian is calculated in the latter. It is shown that tidal deformations start formally at O(v^6) and O(v^10) for maximally rotating general and compact objects respectively, whereas self induced effects can show up at leading order. Agreement is found for the cases where the results are known.
description: 18 pages, 9 figures. Typos corrected, to appear in Physical Review D
On the universal enveloping algebra of a Lie-Rinehart algebra
Creators: name: Moerdijk, I.
name: Mrcun, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Differential Geometry (math.DG)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 17B35, 16W30

description: We review the extent to which the universal enveloping algebra of a Lie-Rinehart algebra resembles a Hopf algebra, and refer to this structure as a Rinehart bialgebra. We then prove a Cartier-Milnor-Moore type theorem for such Rinehart bialgebras.
Modulation transfer protocol for Rydberg RF receivers
Creators: name: Trinh, Duc-Anh
name: V., Adwaith K.
name: Branco, Mickael
name: Rouxel, Aliénor
name: Welinski, Sacha
name: Berger, Perrine
name: Goldfarb, Fabienne
name: Bretenaker, Fabien
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose and demonstrate a modulation transfer protocol to increase the detection sensitivity of a Rydberg RF receiver to fields out of resonance from the transition between Rydberg levels. This protocol is based on a phase modulation of the control field used to create the Electromagnetically Induced Transparency (EIT) signal. The nonlinear wave-mixing of the multi-component coupling laser and the probe laser transfers the modulation to the probe laser, which is used for RF-field detection. The measurements compare well with semi-classical simulations of atom-light interaction and show an improvement in the RF bandwidth of the sensor and an improved sensitivity of the response to weak fields.
Dark Matter from Anomaly Cancellation at the LHC
Creators: name: Butterworth, Jon
name: Debnath, Hridoy
name: Perez, Pavel Fileviez
name: Yeh, Yoran
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss a class of theories that predict a fermionic dark matter candidate from gauge anomaly cancellation. As an explicit example, we study the predictions in theories where the global symmetry associated with baryon number is promoted to a local gauge symmetry. In this context the symmetry-breaking scale has to be below the multi-TeV scale in order to be in agreement with the cosmological constraints on the dark matter relic density. The new physical "Cucuyo" Higgs boson in the theory has very interesting properties, decaying mainly into two photons in the low mass region, and mainly into dark matter in the intermediate mass region. We study the most important signatures at the Large Hadron Collider, evaluating the experimental bounds. We discuss the correlation between the dark matter relic density, direct detection and collider constraints. We find that these theories are still viable, and are susceptible to being probed in current, and future high-luminosity, running.
description: v2: a few small corrections, conclusions unchanged, version to appear in Physical Review D
Low microwave loss in deposited Si and Ge thin-film dielectrics at single-photon power and low temperatures
Creators: name: Kopas, Cameron J.
name: Gonzales, Justin
name: Zhang, Shengke
name: Queen, Daniel R.
name: Wagner, Brian
name: Robinson, Mac
name: Huffman, James
name: Newman, Nate
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Our study shows that deposited Ge and Si dielectric thin-films can exhibit low microwave losses at near single-photon powers and sub-Kelvin temperatures ($\approx$40 mK). This low loss enables their use in a wide range of devices, including low-loss coplanar, microstrip, and stripline resonators, as well as layers for device isolation, inter-wiring dielectrics, and passivation in microwave and Josephson junction circuit fabrication. We use coplanar microwave resonator structures with narrow trace widths of 2-16 $μ\textrm{m}$ to maximize the sensitivity of loss tangent measurements to the interface and properties of the deposited dielectrics, rather than to optimize the quality factor. In this configuration, thermally-evaporated $\approx 1 μ\textrm{m}$ thick amorphous germanium (a-Ge) films deposited on Si (100) have a single photon loss tangent of $1-2\times10^{-6}$ and, $9 μ\textrm{m}$-thick chemical vapor deposited (CVD) homoepitaxial Si has a single photon loss tangent of $0.6-2\times 10^{-5}$. Interface contamination limits the loss in these devices.
ANALYSIS OF DRY BEAN PRICE BEHAVIOR IN BURUNDI
Creators: name: Ndarusigiye, Mevin
name: Ndarusigiye, Mevin
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries
Demand and Price Analysis

description: Dry bean production and price statistics for Burundi from 1972 to 1987 indicate significant year-to-year (bean production) and monthly (bean prices) fluctuations. These fluctuations are influenced by, among other things, climatic conditions, unpredictable markets, government policy, and phytopathological factors. The objective of the study is to analyze the behavior of dry bean production in Burundi under uncertain prices and assess the degree of uncertainty for the period 1972-1987. The hypotheses are that dry bean prices in Burundi are uncertain, and that annual dry bean production per capita has been falling because of dry bean price uncertainty. Two types of regressions models, one with average annual data and another with monthly real price data, were used to test the hypotheses. The variance of the error term was computed to estimate the level of uncertainty in the period prior to the creation of a state-owned marketing board (SOBECOV) (1972-1978), compared to the period during which SOBECOV existed (1979-1987). The findings indicate that dry bean prices were more uncertain in the first period than in the second period. In addition, the results showed that greater price uncertainty was associated with lower bean production. Consequently, bean price stabilization possibly leads to increased bean production.
Die Pornoschau: Künstlerisch forschende Arbeit zum Thema Jugend und Pornografie
Creators: name: Thwaini, Lora Sofia
Publisher: name: Zenodo
Year: 2021
Subjects: Pornografie
sexuelle Sozialisation
Sexualpädagogik
Pubertät
Jugendsexualität
sexuelle Aufklärung
Studie
episodische Interviews
künstlerische Forschung
Aufklärungsbroschüre

description: Die Internetpornografie ist seit den 2000er Jahren nicht mehr aus der sexuellen Sozialisation vieler Jugendlicher wegzudenken. Welche Folgen das für die jungen Konsument*innen hat, bleibt umstritten. Die vorliegende Arbeit differenziert mit der Theorie den Begriff der Pornografie und gibt einen Einblick in die Jugendsexualität im Zusammenhang mit Pornografie. Eine Analyse von Aufklärungsliteratur und von episodischen Interviews mit Jugendlichen schafft die Grundlage für die Gestaltung der Aufklärungsbroschüre zum Thema Pornografie für Jugendliche, deren Erarbeitung das Ziel dieser künstlerisch forschenden Arbeit ist.
description: +repphzhbib2021MA
Chern number landscape of spin-orbit coupled chiral superconductors
Creators: name: Bunney, Matthew
name: Beyer, Jacob
name: Thomale, Ronny
name: Honerkamp, Carsten
name: Rachel, Stephan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Chiral superconductors are one of the predominant quantum electronic states of matter where topology, symmetry, and Fermiology intertwine. This is pushed to a new limit by further invoking the coupling between spin and charge degrees of freedom, which fundamentally affects the principal nature of the Cooper pair wave function. We investigate the onset of superconductivity in the Rashba-Hubbard model on the triangular lattice, which is symmetry-classified by the associated irreducible representations (irrep) of the hexagonal point group. From an instability analysis by means of the truncated-unity functional renormalization group (TU-FRG) we find the $E_2$ irrep to dominate a large fraction of phase space and to lead up to an energetically preferred gapped, chiral superconducting state. The topological phase space classification associated with the anomalous propagators obtained from TU-FRG reveals a fragmentation of the $E_2$ domain into different topological sectors with vastly differing Chern numbers. It hints at a potentially applicable high sensitivity and tunability of chiral superconductors with respect to topological edge modes and phase transitions.
description: (6 + 8 pages, 4 + 4 figures)
Isospin-breaking effects on alpha extracted in B --> pi pi, rho rho, rho pi
Creators: name: Gronau, M.
name: Zupan, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Isospin-breaking in B --> pi pi caused by pi^0-eta-eta' mixing is studied in a model-independent way using flavor SU(3). Measured branching ratios for B^+ --> pi^+ pi^0, B^+ --> pi^+ eta^(') and B^0 --> pi^0 eta^(') imply an uncertainty in alpha smaller than 1.4 degree. We find a negligible effect of pi^0-eta-eta' mixing on alpha in B --> rho pi. Characterizing the effect of rho^0-omega mixing in B --> rho rho and in B --> rho pi by the two-pion invariant mass dependence, we point out a way of constraining this effect experimentally or eliminating it altogether. We show that a model-independent shift in alpha caused by electroweak penguin amplitudes in B --> pi pi and B --> rho rho, Δalpha_{EWP}=1.5+- 0.3 degree, may be slightly different in B --> rho pi. Other sources of isospin-breaking in these processes are briefly discussed.
description: 21 pages, very slight changes, same version as in Physical Review D
Atomically thin obstructed atomic insulators with robust edge modes and quantized spin Hall effect
Creators: name: Verma, Rahul
name: Huang, Shin-Ming
name: Singh, Bahadur
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Symmetry-protected edge states serve as direct evidence of nontrivial electronic topology in atomically thin materials. Finding these states in experimentally realizable single-phase materials presents a substantial challenge for their use in fundamental studies and developing functional nanoscale devices. Here, we show the presence of robust edge states in phosphorene and group-Va monolayers with puckered lattice structures. By carefully analyzing the symmetry of the atomic sites and edge mode properties, we demonstrate that these atomically thin monolayers realize recently introduced obstructed atomic insulator states with partially occupied edge modes. The obstructed edge modes attain a Rashba-type spin splitting with Rashba parameter ($α$) of 1.52 eV Å for arsenene. Under strain or doping effects, these obstructed insulators transition to a phase with substantial spin-Berry curvature, yielding a double quantum spin Hall state with a spin Hall conductivity $\approx 4 \frac{e^2}{h}$. The experimental availability of phosphorene and other group-Va monolayers could enable verification of obstructed atomic states and enhanced spin-Berry curvature effects discussed in this study, offering the potential for applications in topological electronic and spintronic devices.
THE IMPACT OF THE MICHIGAN FARMLAND AND OPEN SPACE PRESERVATION ACT OF LANDOWNER BEHAVIOR IN THE GREATER LANSING AREA
Creators: name: Frankel, Andrew Edwin
name: Frankel, Andrew Edwin
Publisher: name: Unknown
Year: 1987
Subjects: Land Economics/Use

description: It is generally recognized that Michigan's agricultural base is among the most diversified in the nation. Producing more than fifty varieties of commodities, the industry as a whole contributes more than $15 billion in value added to the state's economy. And in terms of employment, it is estimated that one out of every eight of the state's workers are engaged in agriculturally related activities. In recent years, however, the viability of farming as a contributor to the state's economy has been threatened by a variety of sources. The use of lands for non-farm developments such as shopping centers and condominiums led to a yearly loss of an estimated 20,000 acres of prime farmland between the years 1977 and 1982. While such a conversion can be considered a natural consequence of an expanding economy, the most productive and ecologically fragile lands are often turned over first. Since the supply of these lands is finite and irreplaceable, their transformation can lead to increasing pressure on lands which remain in farming. And beyond the obvious loss of food production caused by non-farm development of USDA classified prime and unique lands, there has also been concern over the loss of scenic open space and the deterioration of wooded areas and wildlife, as well as a potential increase in surface water runoff in the areas affected. Poorly planned development affects both the general landscape as well as the viability of farming. The land buffer which is added by development to allow the continuation of farming can further accentuate this loss of farmland. Haphazard development often transforms the landscape from open space to urban sprawl. As the area become more intensively settled, property taxes typically rise as greater revenues are required for the provision of services such as sewers and water, schools, and police and fire protection. In response to farmer and public concern over the related problems of farmland loss and high property taxes, the State of Michigan in 1974 enacted Public Act 116, the Farmland and Open Space Preservation Act, which was primarily designed to diminish the loss of prime farmland that occurs in conjunction with the growth of urban sprawl. The purpose of this study is to determine the impact which the program has had on individual land use decision making in a growing metropolitan area-greater Lansing. Toward this end, it documents the response of these landowners, enrollees and non-enrollees, to the objectives of the program. Behavior based on factors not related to program incentives such as the age of the landowner, location, and development expectations is also considered. Also the effectiveness of the program in encouraging delays in non-farm development among individual landowners is closely examined.
Towards general scalar-Yukawa renormalisation group equations at three-loop order
Creators: name: Steudtner, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For arbitrary four-dimensional quantum field theories with scalars and fermions, renormalisation group equations in the $\overline{\text{MS}}$ scheme are investigated at three-loop order in perturbation theory. Collecting literature results, general expressions are obtained for field anomalous dimensions, Yukawa interactions, as well as fermion masses. The renormalisation group evolution of scalar quartic, cubic and mass terms is determined up to a few unknown coefficients. The combined results are applied to compute the renormalisation group evolution of the gaugeless Litim-Sannino model.
description: v2: correct error in quartic RGEs, add example, match version to be published; v3: fix typos and computational errors
A MULTIPLE REGRESSION ANALYSIS OF ASPARAGUS PRICES IN MICHIGAN: 1956 TO 1970
Creators: name: Yiemphat, Nualsri
name: Yiemphat, Nualsri
Publisher: name: Unknown
Year: 1972
Subjects: Demand and Price Analysis

description: Michigan ranks among the top five asparagus producing states in the United States; ranking forth in production, and second in its seasonal group. As of 1970, the five leading states in asparagus were: (1) California, (2) New Jersey, (3) Washington, (4) Michigan, and (5) Illinois. Although the total acreages employed for asparagus production has been decreasing -3,800 acres between 1969 and 1970 -Michigan's has been increasing - 900 acres for the same period. The marked decrease in asparagus production over the past decade may be explained by strong foreign competition, especially from Taiwan since 1964; and from competing enterprises in certain areas and from asparagus farms sharing in the natural attrition of all farms in the U.S. The objective of this study is to analyze the asparagus price situation in Michigan and to develop forecast equations for Michigan asparagus prices.
Helium and Deuterium Abundances as a Test for the Time Variation of the Fine Structure Constant and the Higgs Vacuum Expectation Value
Creators: name: Chamoun, Nidal
name: Landau, Susana J.
name: Mosquera, Mercedes E.
name: Vucetich, Hector
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the semi-analytic method of \citet{Esma91} to calculate the abundances of Helium and Deuterium produced during Big Bang nucleosynthesis assuming the fine structure constant and the Higgs vacuum expectation value may vary in time. We analyze the dependence on the fundamental constants of the nucleon mass, nuclear binding energies and cross sections involved in the calculation of the abundances. Unlike previous works, we do not assume the chiral limit of QCD. Rather, we take into account the quark masses and consider the one-pion exchange potential, within perturbation theory, for the proton-neutron scattering. However, we do not consider the time variation of the strong interactions scale but attribute the changes in the quark masses to the temporal variation of the Higgs vacuum expectation value. Using the observational data of the helium and deuterium, we put constraints on the variation of the fundamental constants between the time of nucleosynthesis and the present time.
description: 27 pages, 1 figure, replaced to match published version, new references added