cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Singular Euler-Maclaurin expansion
Creators: name: Buchheit, Andreas A.
name: Keßler, Torsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present the singular Euler--Maclaurin expansion, a new method for the efficient computation of large singular sums that appear in long-range interacting systems in condensed matter and quantum physics. In contrast to the traditional Euler--Maclaurin summation formula, the new method is applicable also to the product of a differentiable function and a singularity. For suitable non-singular functions, we show that the approximation error decays exponentially in the expansion order and polynomially in the characteristic length scale of the non-singular function, where precise error estimates are provided. The sum is approximated by an integral plus a differential operator acting on the non-singular function factor only. The singularity furthermore is included in a generalisation of the Bernoulli polynomials that form the coefficients of the differential operator. We demonstrate the numerical performance of the singular Euler--Maclaurin expansion by applying it to the computation of the full non-linear long-range forces inside a macroscopic one-dimensional crystal with $2\times 10^{10}$ particles. A reference implementation in Mathematica is provided online.
description: Accompanying code: https://github.com/andreasbuchheit/singular_euler_maclaurin
Eccentricity terrain of $δ$-hyperbolic graphs
Creators: name: Dragan, Feodor F.
name: Guarnera, Heather M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: A graph $G=(V,E)$ is $δ$-hyperbolic if for any four vertices $u,v,w,x$, the two larger of the three distance sums $d(u,v)+d(w,x)$, $d(u,w)+d(v,x)$, and $d(u,x)+d(v,w)$ differ by at most $2δ\geq 0$. Recent work shows that many real-world graphs have small hyperbolicity $δ$. This paper describes the eccentricity terrain of a $δ$-hyperbolic graph. The eccentricity function $e_G(v)=\max\{d(v,u) : u \in V\}$ partitions the vertex set of $G$ into eccentricity layers $C_{k}(G) = \{v \in V : e(v)=rad(G)+k\}$, $k \in \mathbb{N}$, where $rad(G)=\min\{e_G(v): v\in V\}$ is the radius of $G$. The paper studies the eccentricity layers of vertices along shortest paths, identifying such terrain features as hills, plains, valleys, terraces, and plateaus. It introduces the notion of $β$-pseudoconvexity, which implies Gromov's $ε$-quasiconvexity, and illustrates the abundance of pseudoconvex sets in $δ$-hyperbolic graphs. In particular, it shows that all sets $C_{\leq k}(G)=\{v\in V : e_G(v) \leq rad(G) + k\}$, $k\in \mathbb{N}$, are $(2δ-1)$-pseudoconvex. Additionally, several bounds on the eccentricity of a vertex are obtained which yield a few approaches to efficiently approximating all eccentricities. An $O(δ|E|)$ time eccentricity approximation $\hat{e}(v)$, for all $v\in V$, is presented that uses distances to two mutually distant vertices and satisfies $e_G(v)-2δ\leq \hat{e}(v) \leq {e_G}(v)$. It also shows existence of two eccentricity approximating spanning trees $T$, one constructible in $O(δ|E|)$ time and the other in $O(|E|)$ time, which satisfy ${e}_G(v) \leq e_T(v) \leq {e}_G(v)+4δ+1$ and ${e}_G(v) \leq e_T(v) \leq {e}_G(v)+6δ$, respectively. Thus, the eccentricity terrain of a tree gives a good approximation (up-to an additive error $O(δ))$ of the eccentricity terrain of a $δ$-hyperbolic graph.
description: 22 pages, 4 figures
The focus of light - linear polarization breaks the rotational symmetry of the focal spot
Creators: name: Dorn, Ralf
name: Quabis, Susanne
name: Leuchs, Gerd
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally demonstrate for the first time that a linearly polarized beam is focussed to an asymmetric spot when using a high-numerical aperture focussing system. This asymmetry was predicted by Richards and Wolf [Proc.R.Soc.London A, 253, 358 (1959)] and can only be measured when a polarization insensitive sensor is placed in the focal region. We used a specially modified photodiode in a knife edge type set up to obtain highly resolved images of the total electric energy density distribution at the focus. The results are in good agreement with the predictions of a vectorial focussing theory.
description: to be published in "Journal of Modern Optics"
Selected college-level reading programs: A comparative analysis, 1958-1992
Creators: name: Williams, Adelia Hammond
Publisher: name: American University
Year: 2023

description: The problem. The purpose of this study was to re-examine the reading improvement programs of the 92 colleges and universities in the United States that Leedy examined in the 1950s to (a) determine if reading programs of the 1990s are as much a part of universities' commitment to meet the needs of all students enrolled as they appeared to be in the 1950s; (b) discern if teaching methods and materials to accommodate the needs of students of various nationalities, cultures, and educational backgrounds and capabilities have changed; (c) ascertain if reading programs of the 1990s have become more consistent in terms of instructional theories, methods, materials, and diagnostic and evaluative testing procedures; and (d) identify other types of reading programs in addition to remedial reading programs. The results. There were no significant differences in the reading programs of 1958 and 1992 in the following areas: sponsors of reading programs; ability to accept referrals; average number of class sessions per week; average length (clock hours) of an entire course; effectiveness; production of own teaching materials; clerical and administrative staff sizes; total number of staff people in the entire program; preference for instructors with advanced academic degrees and specialized qualifications; and budget allocations for salaries, supplies, and maintenance. Data did not support the null hypothesis and indicated there were significant differences in the following areas: conditions for reading instruction; enrollment in the entire program; allowance of academic credit for course work; class time allotted for timed, silent reading and use of reading films and machines; informal testing procedures and types of tests used; emphasis on some instructional activities; teacher to student ratio; budget--there is more money available in the 1992 budgets. The conclusions. The status of reading programs in 1992 is much the same as it was in 1958. Although very little has changed in the reading improvement programs that were investigated, the changes that did occur were significant. In the curricula, there has been a de-emphasis on reading speed as an instructional activity while greater emphasis has been placed on reading in the content areas and writing and listening skills as integral parts of reading instruction. Fewer reading machines of the types described in Leedy's study are used. Instead, the computer and television are the mechanical aids most likely used. (Abstract shortened by UMI.).
Index-based insurance of gross margin in agriculture – key challenges
Creators: name: Sulewski, Piotr
name: Was, Adam
name: Sulewski, Piotr
name: Was, Adam
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Political Economy
subject: risk
subject: insurance
subject: gross margin

description: The paper attempts at assessment of usefulness of the index-based insurance of gross margin compared to traditional production insurances. The analysis used FADN data and was limited to the example of winter wheat. The conducted simulations showed that the category of gross margin is characterized by higher variability than yields or prices, thus the costs of its insurance expressed as fair premium would be higher than the costs of traditional production insurance. However, the major problem in case of index-based insurances is still the basic risk related to the possibility that part of the insured will not receive compensation even though they incurred losses. The conducted analyses showed that the assumption of the index basing on the average drop in yields in a voivodeship would result in major percentage of errors as regards payment and refusal of payment of the compensation compared to individual insurance. Structuring of the system of index-based insurances would require collecting data – to construct indices – from areas of much smaller territorial coverage.
Planting olive trees: Palestinian nonviolent resistance
Creators: name: Nojeim, Michael James
Publisher: name: American University
Year: 2023

description: This dissertation examines the meaning of nonviolent action and suggests a model for successful nonviolent political resistance. Prescriptive in its theoretical orientation, the model is based on three propositions: (1) The greater the ability of actors to sustain their nonviolent resistance in the face of repression, the greater the likelihood of success. (2) By privileging nonviolent means over ends, political resistance stands a better chance of succeeding. (3) The exercise of power and authority is based on the origins of power which are not intrinsic to rule but which emerge from the "bottom up" and which depends on the consent of those ruled. The model uses a standard set of elements--actors, goals and resources--to give empirical content to the propositions. It is tested by examining the efficacy of Palestinian nonviolent resistance in terms of accomplishing process, achievement and ultimate goals vis-a-vis the occupation authorities on the West Bank and Gaza Strip during the Intifada, or uprising. I argue that nonviolent political resistance and violent political resistance co-exist along the same continuum called political action. I also argue that there is a distinction between those being nonviolent and those having nonviolence, the former using nonviolence as a policy tool, the latter as a creed. The investigation of Palestinian nonviolent behavior confirms this difference although it has also resulted in the addition of a new type of nonviolent action to the model, i.e., civil resistance. I also found that, given the increasing degree of repression accompanying the Intifada, nonviolent resistance did not succeed in attaining ultimate objectives. This indicates that repression should be more fully integrated into the model. The model should treat the effects of repression in a non-linear fashion, i.e., repression can work to the advantage of nonviolent resistors to a point but also can prevent them from achieving their ultimate goals. Further, investigation of the Palestinian case indicates that consent of the governed, as the mainstay of power, is not the independent variable the model suggests it to be. Given the dependent nature of the economy in the Occupied Territories, Palestinians are unable to sustain their nonviolent noncooperation vis-a-vis Israel's civil administration. As such, other resources available to nonviolent political actors condition the efficacy of nonviolent nonconsent.
Crossover behaviors in branching annihilating attracting walk
Creators: name: Park, Su-Chan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce branching annihilating attracting walk (BAAW) in one dimension. The attracting walk is implemented by a biased hopping in such a way that a particle prefers hopping to a nearest neighbor located on the side where the nearest particle is found within the range of attraction. We study the BAAW with four offspring by extensive Monte Carlo simulation. At first, we find the critical exponents of the BAAW with infinite range of attraction, which are different from those of the directed Ising (DI) universality class. Our results are consistent with the recent observation [B. Daga and P. Ray, Phys. Rev. E {\bf 99}, 032104 (2019)]. Then, by studying crossover behaviors, we show that as far as the range of attraction is finite the BAAW belongs to the DI class. We conclude that the origin of non-DI critical behavior of the BAAW with infinite range of attraction is the long-range nature of the attraction.
title: Functional Characterization of Spastin and its Role in Hereditary Spastic Paraplegia
Creators: name: Errico, Alessia
Publisher: name: The Open University
Year: 2004

description: Hereditary spastic paraplegia (HSP) is a neurodegenerative disease characterized by the spasticity of the lower limbs due to degeneration of the corticospinal tracts. The gene responsible for the most frequent form of autosomal dominant HSP encodes spastin, an ATPase belonging to the AAA family.
 Studies with specific antibodies indicate that spastin has both a nuclear and cytosolic localization. In human fibroblasts spastin localizes to the PML bodies, but is also present on the centrosome. In HeLa and Cos? cells, during mitosis, spastin is enriched in regions rich in microtubules, like the spindle poles and the midbody. Furthermore, in an immortalized motoneuronal cell line, spastin is detected in the growth cone of the axons. By overexpressing wild-type or ATPase-defective spastin, we show that spastin interacts dynamically with microtubules. This association is mediated by the N-terminal region of the protein and regulated through its ATPase activity. The overexpression of wild-type spastin promotes microtubule disassembly; leading to the hypothesis that spastin may play a role in microtubule dynamics.
 We identify Spastin nuclear and centrosomal interactors, reflecting the complex subcellular localization of the protein. We demonstrate that Spastin interacts with Daxx, a transcriptional regulator, and that the overexpression of Daxx causes an increase of spastin transcript, suggesting that Spastin may play a role in regulation of transcription. We show that spastin is sumoylated, although the function of this modification is unclear. Moreover, Spastin interacts with a centrosomal protein. Nal4, and we postulate that this protein may represent the anchor for spastin to bind centrosomes and microtubules.
 All these data suggest that spastin has a complex role in the cell and may contribute in different ways to the integrity of corticospinal axons. Spastin localization to the neurites and its dynamic association with microtubules let us hypothesise that a defect in axonal transport may underlie HSP.
ВОПРОСЫ ОСПАРИВАНИЯ РЕЗУЛЬТАТОВ ОПРЕДЕЛЕНИЯ КАДАСТРОВОЙ СТОИМОСТИ ОБЪЕКТОВ НЕДВИЖИМОСТИ. ЧАСТЬ 1.МЕТОДОЛОГИЯ
Creators: name: Ковалев Д.В.
name: Волович Николай Владимирович
Publisher: name: Имущественные отношения в Российской Федерации
Year: 2021
Subjects: ОПРЕДЕЛЕНИЕ КАДАСТРОВОЙ СТОИМОСТИ НЕЗАВИСИМЫМИ РЫНОЧНЫМИ ОЦЕНЩИКАМИ
ОПРЕДЕЛЕНИЕ КАДАСТРОВОЙ СТОИМОСТИ ГОСУДАРСТВЕННЫМИ БЮДЖЕТНЫМИ УЧРЕЖДЕНИЯМИ
ОСПАРИВАНИЕ В СУДЕБНОМ ПОРЯДКЕ РЕШЕНИЙ БЮДЖЕТНОГО УЧРЕЖДЕНИЯ
ОШИБКА ПРИ ОПРЕДЕЛЕНИИ КАДАСТРОВОЙ СТОИМОСТИ
ПЕРЕСМОТР КАДАСТРОВОЙ СТОИМОСТИ В СУДЕБНОМ ПОРЯДКЕ
ОЦЕНЩИКИ КАК СУДЕБНЫЕ ЭКСПЕРТЫ
DETERMINATION OF THE CADASTRAL VALUE BY INDEPENDENT MARKET APPRAISERS
DETERMINATION OF THE CADASTRAL VALUE BY STATE BUDGETARY INSTITUTIONS
CHALLENGING DECISIONS OF A BUDGETARY INSTITUTION IN COURT
ERROR IN DETERMINING THE CADASTRAL VALUE
REVISING THE CADASTRAL VALUE IN COURT
APPRAISERS AS FORENSIC EXPERTS

description: Авторами рассматриваются особенности определения кадастровой стоимости объектов недвижимости в Российской Федерации. Анализируется опыт оспаривания кадастровой стоимости земельных участков и других объектов недвижимости. Систематизируются проблемы, которые возникают в рамках оспаривания, в том числе в судебных инстанциях. Даются рекомендации по их решению.
Andrena (Diandrena) malacothricidis Thorp 1969
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena malacothricidis

description: Andrena (Diandrena) malacothricidis Thorp, 1969
[Holotype: CASC; ♀ Simmler, 16.1 km W., San Luis Obispo Co., California, US; May 5, 1962]
As the name suggests, Andrena malacothricidis specializes on pollen primarily from Malocothrix DC. in the family Asteraceae (Thorp 1969). This species inhabits the CFP in California, USA and BC, Mexico. Within BC, this species was first reported by Hurd (1979) and confirmed by Ayala et al. (1996).
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 53, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Special relativity and reduced spin density matrices
Creators: name: Gonera, Cezary
name: Kosinski, Piotr
name: Maslanka, Pawel
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive the general formula for Lorentz-transformed spin density matrix. It is shown that an appropriate Lorentz transformation can prduce totally unpolarized state out of pure one. Further properties, as depurification by an arbitrary Lorentz boost and its relation to the localization properties are also discussed.
description: 7 pages
Planting olive trees: Palestinian nonviolent resistance
Creators: name: Nojeim, Michael James
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: This dissertation examines the meaning of nonviolent action and suggests a model for successful nonviolent political resistance. Prescriptive in its theoretical orientation, the model is based on three propositions: (1) The greater the ability of actors to sustain their nonviolent resistance in the face of repression, the greater the likelihood of success. (2) By privileging nonviolent means over ends, political resistance stands a better chance of succeeding. (3) The exercise of power and authority is based on the origins of power which are not intrinsic to rule but which emerge from the "bottom up" and which depends on the consent of those ruled. The model uses a standard set of elements--actors, goals and resources--to give empirical content to the propositions. It is tested by examining the efficacy of Palestinian nonviolent resistance in terms of accomplishing process, achievement and ultimate goals vis-a-vis the occupation authorities on the West Bank and Gaza Strip during the Intifada, or uprising. I argue that nonviolent political resistance and violent political resistance co-exist along the same continuum called political action. I also argue that there is a distinction between those being nonviolent and those having nonviolence, the former using nonviolence as a policy tool, the latter as a creed. The investigation of Palestinian nonviolent behavior confirms this difference although it has also resulted in the addition of a new type of nonviolent action to the model, i.e., civil resistance. I also found that, given the increasing degree of repression accompanying the Intifada, nonviolent resistance did not succeed in attaining ultimate objectives. This indicates that repression should be more fully integrated into the model. The model should treat the effects of repression in a non-linear fashion, i.e., repression can work to the advantage of nonviolent resistors to a point but also can prevent them from achieving their ultimate goals. Further, investigation of the Palestinian case indicates that consent of the governed, as the mainstay of power, is not the independent variable the model suggests it to be. Given the dependent nature of the economy in the Occupied Territories, Palestinians are unable to sustain their nonviolent noncooperation vis-a-vis Israel's civil administration. As such, other resources available to nonviolent political actors condition the efficacy of nonviolent nonconsent.
Additional file 3 of High hepatocyte growth factor expression in primary tumor predicts better overall survival in male breast cancer
Creators: name: Qiu, Si-Qi
name: Rooijen, Johan Van
name: Nienhuis, Hilde H.
name: Vegt, Bert Van Der
name: Timmer-Bosscha, Hetty
name: Leeuwen-Stok, Elise Van
name: Walenkamp, Annemiek M. E.
name: Deurzen, Carolien H. M. Van
name: Bock, Geertruida H. De
name: Vries, Elisabeth G. E. De
name: Schröder, Carolien P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Plant Biology

description: Additional file 3: Table S2. The concordance rates of the percentage/H-score for each TMA core among the studied markers between the two observers.
High Resolution X-ray Spectroscopy of the Post-T Tauri Star PZ Tel
Creators: name: Argiroffi, C.
name: Drake, J. J.
name: Maggio, A.
name: Peres, G.
name: Sciortino, S.
name: Harnden, F. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of the Chandra High Energy Transmission Grating Spectrometer observation of the rapidly rotating P_(rot)=0.94 d post T Tauri (~20 Myr old) star PZ Telescopii, in the Tucana association. Using two different methods we have derived the coronal emission measure distribution, em(T), and chemical abundances. The em(T) peaks at log T = 6.9 and exhibits a significant emission measure at temperatures log T > 7. The coronal abundances are generally ~0.5 times the solar photospheric values that are presumed fairly representative of the composition of the underlying star. A minimum in abundance is seen at a first ionization potential (FIP) of 7-8 eV, with evidence for higher abundances at both lower and higher FIP, similar to patterns seen in other active stars. From an analysis of the He-like triplet of Mg XI we have estimated electron densities of ~10^(12)-10^(13) cm^(-3). All the coronal properties found for PZ Tel are much more similar to those of AB Dor, which is slightly older than PZ Tel, than to those of the younger T Tauri star TW Hya. These results support earlier conclusions that the soft X-ray emission of TW Hya is likely dominated by accretion activity rather than by a magnetically-heated corona. Our results also suggest that the coronae of pre-main sequence stars rapidly become similar to those of older active main-sequence stars soon after the accretion stage has ended.
description: 15 pages, 8 Postscript figures, accepted for publication in Astrophysical Journal
The relationship between serum glucose regulation and cognitive processing efficiency in non-insulin dependent diabetes mellitus
Creators: name: Tatman, Janet Elaine
Publisher: name: American University
Year: 2023

description: A small but growing literature points to the existence of subtle cognitive deficits in otherwise healthy diabetic patients. These deficits have been attributed to peripheral neuromotor dysfunction (Skenazy & Bigler, 1984), attentional disruption (Holmes, 1986), defects in both verbal and visual learning and memory (Mooradian et al., 1988; Perlmuter et al., 1984), and problems with abstract reasoning (Francheschi et al., 1984). Although it is well known that peripheral and central neural conduction velocity is slowed in diabetes (Hansen & Ballantyne, 1977; Pozzessere et al., 1988), no existing neuropsychological studies address the relative contributions of speed and accuracy to the obtained deficits in cognition. In the present study, the neuropsychological performance of 26 patients with non-insulin-dependent diabetes mellitus (NIDDM) was compared to that of an equivalent control group of 19. Patients with poorly-controlled NIDDM (fasting glucose = 225.0 $\pm$ 66.1 mg/dl) were treated with an oral hypoglycemic agent. Those responding well to treatment discontinued their participation after eight weeks. Nonresponders participated for an additional eight weeks on both the oral agent and insulin. Ten of the patients and six of the control subjects participated in this second phase. All subjects received neuropsychological testing at entry and at Weeks 2 and 8 of the patients' treatment. Those in the second phase were also tested at Weeks 10 and 16. The cognitive measures selected to assess groups' speed and accuracy were: a 4-choice reaction time test, the Trail Making Tests with several alternate forms, and a matching to sample paradigm administered both with and without limits on the time available for a response. As predicted, the patients' speed was significantly poorer than that of controls on virtually all measures, while their accuracy was generally unimpaired and subjects' scores were often significantly related to both glucose and HgbA$\sb1$. While across-subjects analyses seemed to indicate that there was improvement in patients' performance relative to controls, this was not borne out by within-subjects analyses of the rate at which groups changed over time. Post-hoc hypotheses regarding the failure to detect a treatment effect and recommendations for future research are outlined.
АНАЛИЗ ПРИБЫЛИ И ДЕНЕЖНОГО ПОТОКА ОРГАНИЗАЦИИ КАК КРИТЕРИЕВ ЭФФЕКТИВНОСТИ ФИНАНСОВОЙ МОДЕЛИ ПРИНЯТИЯ РЕШЕНИЙ
Creators: name: Руднева Наталья Сергеевна
name: Косорукова И.В.
Publisher: name: Имущественные отношения в Российской Федерации
Year: 2021
Subjects: ФИНАНСОВАЯ МОДЕЛЬ ПРИНЯТИЯ РЕШЕНИЙ
ЧИСТАЯ ПРИБЫЛЬ И СТОИМОСТЬ БИЗНЕСА
ДЕНЕЖНЫЕ ПОТОКИ И СТОИМОСТЬ БИЗНЕСА
КРИТЕРИИ ЭФФЕКТИВНОСТИ БИЗНЕСА
FINANCIAL DECISION-MAKING MODEL
NET PROFIT AND BUSINESS VALUE
CASH FLOWS AND BUSINESS VALUE
BUSINESS PERFORMANCE CRITERIA

description: В статье анализируются возможности использования чистой прибыли и денежного потока в качестве критериев эффективности бизнеса. Показаны связи цены и стоимости бизнеса с показателями денежного потока и чистой прибыли, что может быть использовано для обоснования выбора наиболее применимого для этих целей показателя. Сформулированы актуальные для российской экономики выводы об объективности каждого из исследованных показателей в качестве критериев эффективности бизнеса.
Straw as alternative energy source or organic matter in the soil
Creators: name: Zietara, Wojciech
name: Zielinski, Marek
name: Zietara, Wojciech
name: Zielinski, Marek
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Resource /Energy Economics and Policy
subject: straw
subject: energy
subject: organic matter
subject: CO2 sequestration
subject: farm
subject: alternative

description: The paper aims, above all, at assessment of the effects of allocating straw surplus from the Polish agriculture to energy purposes or as a source of additional organic matter in the soil. Consequently, the authors discuss the issue of significance of straw as an alternative energy source and draw attention to the role of organic matter in improving the production potential of soils and carbon dioxide (CO2) sequestration. Additionally, the paper analyses economic effects and development possibilities of farms having non-negative balance of CO2 sequestration at the backdrop other farms. The study used literature data from 2,069 farms specialising in cereal, oilseed crop and high protein crop farming and running accountancy for the Polish FADN in 2015.
Superlattice nonlinearities for Gigahertz-Terahertz generation in harmonic multipliers
Creators: name: Apostolakis, Apostolos
name: Pereira, Mauro F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Semiconductor superlattices are strongly nonlinear media offering several technological challenges associated with the generation of high-frequency Gigahertz radiation and very effective frequency multiplication up to several Terahertz. However, charge accumulation, traps and interface defects lead to pronounced asymmetries in the nonlinear current flow, from which high harmonic generation stems. This problem requires a full non-perturbative solution of asymmetric current flow under irradiation, which we deliver in this paper within the Boltzmann-Bloch approach. We investigate the nonlinear output on both frequency and time domains and demonstrate a significant enhancement of even harmonics by tuning the interface quality. Moreover, we find that increasing arbitrarily the input power is not a solution for high nonlinear output, in contrast with materials described by conventional susceptibilities. There is a complex combination of asymmetry and power values leading to maximum high harmonic generation.
description: 13 pages, 7 figures, Accepted for Nanophotonics (De Gruyter)
Microreboot -- A Technique for Cheap Recovery
Creators: name: Candea, George
name: Kawamoto, Shinichi
name: Fujiki, Yuichi
name: Friedman, Greg
name: Fox, Armando
Publisher: name: arXiv
Year: 2004
Subjects: subject: Operating Systems (cs.OS)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences
subject: D.4.0

description: A significant fraction of software failures in large-scale Internet systems are cured by rebooting, even when the exact failure causes are unknown. However, rebooting can be expensive, causing nontrivial service disruption or downtime even when clusters and failover are employed. In this work we separate process recovery from data recovery to enable microrebooting -- a fine-grain technique for surgically recovering faulty application components, without disturbing the rest of the application. We evaluate microrebooting in an Internet auction system running on an application server. Microreboots recover most of the same failures as full reboots, but do so an order of magnitude faster and result in an order of magnitude savings in lost work. This cheap form of recovery engenders a new approach to high availability: microreboots can be employed at the slightest hint of failure, prior to node failover in multi-node clusters, even when mistakes in failure detection are likely; failure and recovery can be masked from end users through transparent call-level retries; and systems can be rejuvenated by parts, without ever being shut down.
description: 14 pages
Thermodynamic properties in higher-derivative electrodynamics
Creators: name: Filho, A. A. Araújo
name: Maluf, R. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we study the thermodynamic properties of a photon gas in a heat bath within the context of higher-derivative electrodynamics. Specifically, we analyze Podolsky's theory and its extension involving the Lorentz symmetry violation recently proposed in the literature. First, we use the concept of the number of available states of the system in order to construct the partition function. Next, we calculate the main thermodynamic functions: Helmholtz free energy, mean energy, entropy, and heat capacity. In particular, we verify that there exist significant changes in heat capacity and mean energy due to Lorentz violation. Additionally, the modification of the black body radiation and the correction to the Stefan-Boltzmann law in the context of the primordial inflationary universe are provided for both theories as well.
description: 17 pages, 7 figures. Small modifications in the text to match the accepted version in Brazilian Journal of Physics
Geometric discretization of the Bianchi system
Creators: name: Doliwa, A.
name: Nieszporski, M.
name: Santini, P. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We introduce the dual Koenigs lattices, which are the integrable discrete analogues of conjugate nets with equal tangential invariants, and we find the corresponding reduction of the fundamental transformation. We also introduce the notion of discrete normal congruences. Finally, considering quadrilateral lattices "with equal tangential invariants" which allow for harmonic normal congruences we obtain, in complete analogy with the continuous case, the integrable discrete analogue of the Bianchi system together with its geometric meaning. To obtain this geometric meaning we also make use of the novel characterization of the circular lattice as a quadrilateral lattice whose coordinate lines intersect orthogonally in the mean.
description: 26 pages, 7 postscript figures
The relationship between serum glucose regulation and cognitive processing efficiency in non-insulin dependent diabetes mellitus
Creators: name: Tatman, Janet Elaine
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology
classificationCode: 5203
subject: Clinical and health psychology

description: A small but growing literature points to the existence of subtle cognitive deficits in otherwise healthy diabetic patients. These deficits have been attributed to peripheral neuromotor dysfunction (Skenazy & Bigler, 1984), attentional disruption (Holmes, 1986), defects in both verbal and visual learning and memory (Mooradian et al., 1988; Perlmuter et al., 1984), and problems with abstract reasoning (Francheschi et al., 1984). Although it is well known that peripheral and central neural conduction velocity is slowed in diabetes (Hansen & Ballantyne, 1977; Pozzessere et al., 1988), no existing neuropsychological studies address the relative contributions of speed and accuracy to the obtained deficits in cognition. In the present study, the neuropsychological performance of 26 patients with non-insulin-dependent diabetes mellitus (NIDDM) was compared to that of an equivalent control group of 19. Patients with poorly-controlled NIDDM (fasting glucose = 225.0 $\pm$ 66.1 mg/dl) were treated with an oral hypoglycemic agent. Those responding well to treatment discontinued their participation after eight weeks. Nonresponders participated for an additional eight weeks on both the oral agent and insulin. Ten of the patients and six of the control subjects participated in this second phase. All subjects received neuropsychological testing at entry and at Weeks 2 and 8 of the patients' treatment. Those in the second phase were also tested at Weeks 10 and 16. The cognitive measures selected to assess groups' speed and accuracy were: a 4-choice reaction time test, the Trail Making Tests with several alternate forms, and a matching to sample paradigm administered both with and without limits on the time available for a response. As predicted, the patients' speed was significantly poorer than that of controls on virtually all measures, while their accuracy was generally unimpaired and subjects' scores were often significantly related to both glucose and HgbA$\sb1$. While across-subjects analyses seemed to indicate that there was improvement in patients' performance relative to controls, this was not borne out by within-subjects analyses of the rate at which groups changed over time. Post-hoc hypotheses regarding the failure to detect a treatment effect and recommendations for future research are outlined.
Andrena (Diandrena) parachalybea Viereck 1917
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena parachalybea

description: Andrena (Diandrena) parachalybea Viereck, 1917
[Holotype: ANSP; ♀ Southern California, US]
Andrena parachalybea specializes on pollen from suncups in the genus Camissonia Link (Thorp 1969). This species was previously reported by Ayala et al. (1996) in BC. We reviewed three females from the Coastal Sage Matorral, collected in March 1962 (EMEC). Additionally, we examined a female collected by the MABC team in May 2021 in Chaparral habitat. See fig. 10.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 53, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Relations between input efficiency and financial situation of agricultural companies
Creators: name: Zabolotnyy, Serhiy
name: Felczak, Tomasz
name: Wasilewski, Mirosław
name: Zabolotnyy, Serhiy
name: Felczak, Tomasz
name: Wasilewski, Mirosław
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Production Economics
subject: efficiency
subject: input
subject: agricultural company
subject: principal component analysis
subject: canonical analysis

description: The research defines the input efficiency and estimates relations between factors of efficiency and financial situation of agricultural companies. In 2005-2013, the input efficiency of agricultural companies was low which was illustrated by insufficient profitability. An increase in investments did not result in a substantial improvement in return on capital. It was stated that the highest impact on financial situation of companies had the labour factor, while capital and land factors were of lesseru importance. The efficiency of capital use was highly related to assets’ capacity of agricultural companies, although labor and land were strongly connected to sales revenue and operating profit.
International relations and national policies of Latin American broadcasting
Creators: name: Fox, Elizabeth Russell
Publisher: name: American University
Year: 2023

description: The mass media are one of the most striking developments of modern Latin America. The spread of television and radio from experimental hobbies of elites to the mass coverage of today rivals the magnitude and speed of phenomena of urban growth and industrialization. Within a generation, radio and television were ubiquitous, revolutionizing the way people got information and news, spent their leisure time, and consumed. These changes did not go unnoticed by those sectors most affected: the state, political parties, commerce, and the media industries themselves. How the different sectors of society dealt with the distribution of broadcasting's benefits and obligations is the subject of national policy. International relations also played a role in the evolution of Latin American broadcasting, notably the U.S. commercial broadcasting industry, foreign governments, and trans-national corporations, advertising and selling their products worldwide. This study analyzes the distinct patterns of conflict and accommodation that accompanied the introduction and growth of radio and television in eight Latin American countries. As a form of comparative-historical analysis, it examines the relationships and different spheres of influence of international relations and national policies of broadcasting in Argentina, Brazil, Chile, Colombia, Mexico, Peru, Uruguay, and Venezuela. It shows patterns and accents contrasts in the events resulting in the monopolistic and politically autonomous broadcasting industries that formed or are forming in each country. By looking at more than one country and contrasting similar periods and conflicts over time, the study builds a framework for understanding patterns of domestic media policies and assessing the strong but not determinant force of the images and influences of U.S. commercial broadcasting. Latin American broadcasting as it stands today is not an atavist product of poverty, underdevelopment, and tyranny, nor is it an exclusive product of U.S. imperialism. Foreign influence was exerted strategically, randomly, and pervasively over the course of many decades. Yet, more than the product of their foreign relations, Latin American broadcasting industries are the product of a complex interplay of strong and weak governments, authoritarianism and populism, domestic and foreign markets, and largely excluded social forces.
Light-by-Light Scattering and Spacetime Noncommutativity
Creators: name: Horvat, Raul
name: Latas, Dusko
name: Trampetic, Josip
name: You, Jiangyang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The aim of this article is to explore a potential usability of a photon-photon self-interaction from the noncommutative quantum electrodynamics (NCQED) in the case of light-by-light scattering ($γγ\toγγ$) in ultraperipheral Pb+Pb collisions, a reaction measured recently by ATLAS and planned for future experiments in hadron-hadron colliders. We compute the total cross section from both, the full one-loop standard model (SM) and the tree-level NCQED amplitudes, in the equivalent photon approximation with impact parameters, for various noncommutative scales, $\rmΛ_{NC}$, and incoming nuclear spin-energy combinations. We find that NCQED contribution to the cross section has considerable increase at diphoton invariant mass range higher than $\rmΛ_{NC}$, while the SM contribution is strongly suppressed in such region. Our results show that the current ATLAS $\rm\sqrt{s_{NN}} = 5.02$ TeV experiment can only probe $\rmΛ_{NC}<100$ GeV region. On the other hand, future hadron-hadron collider proposals could have the potential to extend to $\rmΛ_{NC}\lesssim 300$ GeV region, making the performance of $\rm Pb+Pb(γγ)\to Pb+Pbγγ$ scattering on testing space-time noncommutativity close to that of the previously proposed photon-photon mode of linear electron-positron collider.
description: 8 pages, 3 figures, version to be published in PRD
Pressure-induced superconductivity in a novel germanium allotrope
Creators: name: Deng, Liangzi
name: Zhang, Jianbo
name: Sakai, Yuki
name: Tang, Zhongjia
name: Adnani, Moein
name: Dahal, Rabin
name: Litvinchuk, Alexander P.
name: Chelikowsky, James R.
name: Cohen, Marvin L.
name: Hemley, Russell J.
name: Guloy, Arnold
name: Ding, Yang
name: Chu, Ching-Wu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High-pressure studies on elements play an essential role in superconductivity research, with implications for both fundamental science and applications. Here we report the experimental discovery of surprisingly low pressure driving a novel germanium allotrope into a superconducting state in comparison to that for alpha-Ge. Raman measurements revealed structural phase transitions and possible electronic topological transitions under pressure up to 58 GPa. Based on pressure-dependent resistivity measurements, superconductivity was induced above 2 GPa and the maximum Tc of 6.8 K was observed under 4.6 GPa. Interestingly, a superconductivity enhancement was discovered during decompression, indicating the possibility of maintaining pressure-induced superconductivity at ambient pressure with better superconducting performance. Density functional theory analysis further suggested that the electronic structure of Ge (oP32) is sensitive to its detailed geometry and revealed that disorder in the beta-tin structure leads to a higher Tc in comparison to the perfect beta-tin Ge.
description: 30 pages, 13 figures
Lifetime of Kaonium
Creators: name: Krewald, S.
name: Lemmer, R. H.
name: Sassen, F. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The kaon--antikaon system is studied in both the atomic and the strongly interacting sector. We discuss the influence of the structures of the $f_0(980)$ and the $a_0(980)$ mesons on the lifetime of kaonium. The strong interactions are generated by vector meson exchange within the framework of the standard $SU(3)_V\times SU(3)_A$ invariant effective Lagrangian. In the atomic sector, the energy levels and decay widths of kaonium are determined by an eigenvalue equation of the Kudryavtsev--Popov type, with the strong interaction effects entering through the complex scattering length for $K\bar K$ scattering and annihilation. The presence of two scalar mesons, $f_0(980)$ and $a_0(980)$, leads to a ground state energy for the kaonium atom that is shifted above the point Coulomb value by a few hundred eV. The effect on the lifetime for the kaonium decay into two pions is much more dramatic. This lifetime is reduced by two orders of magnitude from $0.8\times 10^{-16}$ sec for annihilation in a pure Coulomb field down to $3.1\times 10^{-18}$ sec when the strong interactions are included. The analysis of the two photon decay width of the $f_0(980)$ suggests a generalization of the molecular picture which reduces the lifetime of kaonium still further to $1.1\times 10^{-18}\textrm{sec}$.
description: 33 pages, 12 figures;3 new figures and new comment concerning the a0