bluuebunny/crossref_metadata_2025_split huggingface dataset:
Models and algorithms for health and social care of adolescents with addictive behavior, who use psychoactive substances
Authors: Tabachnikov S. I. , Kharchenko Ye. M. , Sinitska T. V. , Chepurna A. M. , Kioseva O. V. , Voronina O. V. 
Published: June 2020

Background. The use of various psychoactive substances by adolescents and young people is the actual medical, psychological and social problem, which, unfortunately, has not yet been properly addressed. It should be noted that early diagnosis and treatment of mental disorders that occur the use of psychoactive substances (both episodic and systematic ones) for this contingent of respondents is a very complex issue, closely related to the destigmatization of psychiatric care, the success of psychoeducational projects on microsocial and family macrosocial (staff of educational institutions, social services, general practice) levels. It is periodically detection and early care in the vast majority of cases which have been determined the prognosis of mental illnesses and social consequences.
Objective – based on a systematic, interdisciplinary approach we have the purpose to develop a model and the algorithm for providing medical and social care to adolescents with addictive behavior who use psychoactive substances.
Materials and methods. A systematic, interdisciplinary approach is used.
Results. Trends in the use of psychoactive substances by adolescents and young people will be described in such a way. Most of the respondents when taking various psychoactive substances were mainly in the area of relatively “safe” (1-7 points) or “dangerous use” (8-15 points), but without harmful effects or states of dependence. For adolescents with addictive behavior who used psychoactive substances, depending on the degree of use, we developed a model and the algorithm for medical and social care. Proposed measures were mainly psychotherapeutic and psychocorrectional in their nature.
Conclusions. Based on the obtained data, the study and testing of addictive behavior of adolescents, the influence of social factors, premorbid mental disorders were developed and a model and the algorithm for providing medical and social care to adolescents who use psychoactive substances at different levels of care were tested.
Concentrated force effects in the method of boundary state
Authors: Поликарпов Максим Владимирович , Пеньков Виктор Борисович 
Published: June 2020

Данная статья посвящена развитию метода граничных состояний на класс задач механики твердого деформируемого тела, включающих сингулярности физического характера. Сформировано множество специальных решений, соответствующих сосредоточенным силовым воздействиям на поверхности гладкого трехмерного тела. Каждое специальное решение включено в базисы пространств внутренних и граничных состояний. В качестве примеров эффективности использования специальных решений методом граничных состояний построены напряжённо-деформированные состояния тел шарообразной формы под воздействием сосредоточенных сил.
This article is devoted to the development of the method of boundary states into a class of problems of mechanics of a solid deformable body, including singularities of a physical nature. Many special solutions have been formed corresponding to concentrated force actions on the surface of a smooth three-dimensional body. Each special solution is included in the bases of spaces of internal and boundary states. As examples of the effectiveness of using special solutions using the boundary state method, stress-strain states of spherical bodies are constructed under the influence of concentrated forces.
Interpreting the Cratering Histories of Bennu, Ryugu, and Other Spacecraft-explored Asteroids
Authors: Bottke W. F. , Vokrouhlický D. , Ballouz R.-L. , Barnouin O. S. , Connolly H. C. , Elder C. , Marchi S. , McCoy T. J. , Michel P. , Nolan M. C. , Rizk B. , Scheeres D. J. , Schwartz S. R. , Walsh K. J. , Lauretta D. S. 
Published: June 2020

Abstract
Asteroid crater retention ages have unknown accuracy because projectile–crater scaling laws are difficult to verify. At the same time, our knowledge of asteroid and crater size–frequency distributions has increased substantially over the past few decades. These advances make it possible to empirically derive asteroid crater scaling laws by fitting model asteroid size distributions to crater size distributions from asteroids observed by spacecraft. For D > 10 km diameter asteroids like Ceres, Vesta, Lutetia, Mathilde, Ida, Eros, and Gaspra, the best matches occur when the ratio of crater to projectile sizes is f ∼ 10. The same scaling law applied to 0.3 < D < 2.5 km near-Earth asteroids such as Bennu, Ryugu, Itokawa, and Toutatis yield intriguing yet perplexing results. When applied to the largest craters on these asteroids, we obtain crater retention ages of ∼1 billion years for Bennu, Ryugu, and Itokawa and ∼2.5 billion years for Toutatis. These ages agree with the estimated formation ages of their source families and could suggest that the near-Earth asteroid population is dominated by bodies that avoided disruption during their traverse across the main asteroid belt. An alternative interpretation is that f ≫ 10, which would make their crater retention ages much younger. If true, crater scaling laws need to change in a substantial way between D > 10 km asteroids, where f ∼ 10, and 0.3 < D < 2.5 km asteroids, where f ≫ 10.
Beyond Gaia: Asteroseismic Distances of M Giants Using Ground-based Transient Surveys
Authors: Auge Connor , Huber Daniel , Heinze Aren , Shappee B. J. , Tonry John , Chakrabarti Sukanya , Sanderson Robyn E. , Denneau Larry , Flewelling Heather , Holoien Thomas W.-S. , Kochanek C. S. , Pignata Giuliano , Sickafoose Amanda , Stalder Brian , Stanek K. Z. , Stello Dennis , Thompson Todd A. 
Published: June 2020

Abstract
Evolved stars near the tip of the red giant branch show solar-like oscillations with periods spanning hours to months and amplitudes ranging from ∼1 mmag to ∼100 mmag. The systematic detection of the resulting photometric variations with ground-based telescopes would enable the application of asteroseismology to a much larger and more distant sample of stars than is currently accessible with space-based telescopes such as Kepler or the ongoing Transiting Exoplanet Survey Satellite mission. We present an asteroseismic analysis of 493 M giants using data from two ground-based surveys: the Asteroid Terrestrial-impact Last Alert System (ATLAS) and the All-Sky Automated Survey for Supernovae (ASAS-SN). By comparing the extracted frequencies with constraints from Kepler, the Sloan Digital Sky Survey Apache Point Observatory Galaxy Evolution Experiment, and Gaia we demonstrate that ground-based transient surveys allow accurate distance measurements to oscillating M giants with a precision of ∼15%. Using stellar population synthesis models we predict that ATLAS and ASAS-SN can provide asteroseismic distances to ∼2 × 106 galactic M giants out to typical distances of 20–50 kpc, vastly improving the reach of Gaia and providing critical constraints for Galactic archeology and galactic dynamics.
New Grids of Pure-hydrogen White Dwarf NLTE Model Atmospheres and the HST/STIS Flux Calibration
Authors: Bohlin Ralph C. , Hubeny Ivan , Rauch Thomas 
Published: June 2020

Abstract
Nonlocal thermodynamic equilibrium (NLTE) calculations of hot white dwarf (WD) model atmospheres are the cornerstone of modern flux calibrations for the Hubble Space Telescope and for the CALSPEC database. These theoretical spectral energy distributions (SEDs) provide the relative flux versus wavelength, and only the absolute flux level remains to be set by reconciling the measured absolute flux of Vega in the visible with the Midcourse Space Experiment values for Sirius in the mid-IR. The most recent SEDs calculated by the tlusty and tmap NLTE model atmosphere codes for the primary WDs G191-B2B, GD 153, and GD 71 show improved agreement to 1% from 1500 Å to 30 μm, in comparison to the previous 1% consistency only from 2000 Å to 5 μm. These new NLTE models of hot WDs now provide consistent flux standards from the far UV to the mid-IR.
On Arrival Time Difference Between Lensed Gravitational Waves and Light
Authors: Suyama Teruaki 
Published: June 2020

Abstract
It is known that geometrical optics no longer applies to gravitational lensing if the wavelength of a propagating wave becomes comparable to or larger than the Schwarzschild radius of a lensing object. We investigate the propagation of gravitational waves in wave optics, particularly focusing on the difference between their arrival time and the arrival time of light. We argue that, contrary to the observation in the previous work, gravitational waves never arrive at an observer earlier than light when both gravitational waves and light are emitted from a same source simultaneously.
Notes on the hosts of Trissolcus Ashmead (Hymenoptera: Scelionidae) from China
Authors: Chen Huayan , Talamas Elijah , Pang Hong 
Published: June 2020

TrissolcusAshmead (Hymenoptera: Scelionidae) is a cosmopolitan genus of egg-parasitoid wasps associated with stink bugs (Pentatomidae, Scutelleridae, Urostylididae), many of which are important insect pests. Documentation of host associations for these wasps, which we here provide via museum specimens, can support their use as biological control agents of invasive stink bugs.The hosts of sevenTrissolcusspecies are reported from China:Trissolcus cultratus(Mayr) (hosts:Hippotiscus dorsalisStål, Pentatomidae;Urochela luteovariaDistant, Urostylididae),Trissolcus elasmuchae(Watanabe) (host:Niphe elongata(Dallas), Pentatomidae),Trissolcus japonicus(Ashmead) (hosts:Erthesina fullo(Thunberg), Pentatomidae;Rhaphigaster nebulosa(Poda), Pentatomidae),Trissolcus latisulcus(Crawford) (host:Poecilocoris latusDallas, Scutelleridae),Trissolcus mitsukurii(Ashmead) (host: Pentatomidae),Trissolcus semistriatus(Nees von Esenbeck) (host:Eurydemasp., Scutelleridae),Trissolcus yamagishiiRyu (host:Niphe elongata(Dallas), Pentatomidae).
Les nouveaux Länder : une transformation économique inachevée – entre héritage, ruptures et renouveau
Authors: Lambertz-Pollan Ruth , Massol Joël 
Published: June 2020

Cet article étudie l’intégration économique des nouveaux Länder dans la République fédérale d’Allemagne comme un changement structurel qui s’inscrit dans le temps long. Le regard rétrospectif porté sur les trois décennies qui ont suivi l’Unification permet de distinguer différentes temporalités dans lesquelles se déploie le changement. L’Unification, conçue comme transfert des institutions politiques, juridiques, économiques et sociales de la RFA, et les conditions de l’Union monétaire entraînent tout d’abord une succession de ruptures avec l’héritage socialiste qui laissent peu de place à des apprentissages ou des mutations endogènes. Dans le cadre institutionnel de l’économie de marché qui s’impose immédiatement, la Treuhandanstalt devient le maître d’œuvre de la transformation structurelle dans les nouveaux Länder. La thérapie de choc, administrée au patrimoine est-allemand au début des années 1990, ne produit pas les résultats escomptés. Les choix stratégiques et opérationnels de la Treuhand, et en particulier la privatisation à bride abattue, permettent certes d’imposer comme dans une « attaque de cavalerie » les règles du marché et les normes ouest-allemandes dans les nouveaux Länder, mais ils laissent l’appareil productif et le tissu des relations socio-économiques presque exsangues quand la Treuhand achève sa mission en 1994. Malgré les transferts financiers ouest-allemands massifs, il faut attendre la fin des années 2000 pour voir apparaître le début d’un processus général de croissance endogène dans l’est de l’Allemagne. La recomposition de structures économiques performantes qui succède à cette première phase destructrice est difficile, discontinue et s’inscrit dans un temps plus long ; dans bien des domaines, elle est encore inachevée en 2020. Cette phase de recomposition prend le plus souvent la forme d’une modernisation et donne naissance, tantôt à des phénomènes d’hybridation comme dans le cas de la réforme territoriale, tantôt à des projets innovants de développement endogène ancrés dans le territoire local, dans le cas du secteur agricole. Cette transformation est cependant incomplète si l’on mesure ses résultats socio-économiques à l’aune des ambitions politiques initiales : créer dans les nouveaux Länder « un cadre de vie équivalent » à celui de l’ouest de l’Allemagne. Les raisons de ce clivage persistant sont multiples : elles sont micro-économiques, mais surtout structurelles. Elles tiennent, pour une bonne part, au manque d’attractivité et au caractère rural des territoires est-allemands, au manque de grandes entreprises dans les nouveaux Länder, à l’insuffisante internationalisation de la grande majorité des entreprises, à leur faible investissement dans l’innovation et à une inadéquation des qualifications professionnelles au marché du travail.
La révolution pédagogique de l’enseignement supérieur, une universalité géographique et paradigmatique
Authors: Lalle Philippe , Bonnafous Simone 
Published: June 2020

Depuis un certain nombre d’années, l’université connaît de nombreuses mutations qui font évoluer l’enseignement et favorisent le développement d’un objet nouveau : la pédagogie universitaire. Les pratiques d’enseignement se modifient sous l’influence des changements sociaux et sociétaux : massification, arrivée des nouvelles technologies, changement du rapport au savoir, aspirations nouvelles et mobilité accrue des étudiants, exigence de pédagogies diversifiées, etc. De nouvelles formes d’enseignement apparaissent (apprentissage par problèmes, classe inversée, formations à distance, hybrides ou co-modales…), mais ce sont aussi les modalités d’évaluation et les espaces d’apprentissage qui changent. Et si, il y a quelques années encore, la formation des enseignants universitaires à la pédagogie était inexistante, des centres d’appui à la pédagogie se créent maintenant dans le monde entier, quelle que soit la typologie des établissements, tandis qu’émerge la question de la valorisation de l’engagement pédagogique des enseignants.
Radiosynovectomy is a safe and an efficient alternative in the treatment of chronic, recurrent knee hemarthrosis
Authors: Iakovou Ioannis , Kotrotsios Dimitrios , Michailos Konstantinos , Sachpekidis Christos 
Published: June 2020

AbstractChronic recurrent hemarthrosis, defined as repeated intra-articular hemorrhage, can lead to a disabling arthropathy. We herein report on a 26-year-old patient presenting with recurrent, postoperative, serious knee hemarthrosis refractory to conventional treatment, including systemic and intra-articular steroid injections as well as chemical synovectomy with osmic acid. The patient was finally treated with a twice performed knee radiosynovectomy with yttrium-90 and showed an extraordinary good clinical outcome with a symptom-free period of 4 years. In cases of refractory hemarthrosis, radiosynovectomy should have a place in the therapeutic armamentarium of the treating physician, as a minimally invasive, safe, and efficient therapeutic tool.
18F-fluorodeoxyglucose positron emission tomography/computed tomography in the diagnosis of suspected paraneoplastic syndromes: A retrospective analysis
Authors: Bresler Richard , Schroeder Harry William III , Chow David Z. , Lim Ruth 
Published: June 2020

AbstractParaneoplastic syndromes are a rare clinical presentation of tumor thought to affect 0.01% of patients with cancer. Paraneoplastic syndromes present a diagnostic challenge as a wide variety of signs and symptoms may appear. This study examines the use of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) as a diagnostic imaging tool for detecting tumor in suspected paraneoplastic syndrome cases. This single-center retrospective study included patients with suspected paraneoplastic syndrome who underwent whole-body 18F-FDG PET/CT scan between December 2005 and December 2016. Associated clinical data were gathered via electronic chart review. Patient records were reviewed for age, sex, clinical signs and symptoms, ancillary diagnostic procedures, date of diagnosis, and follow-up time. Ninety-nine patients met inclusion criteria for this study. Mean follow-up period was 1.8 years. Cancer prevalence was 12.1%. The 18F-FDG PET/CT results are as follows: 10 true positives, 5 false positives, 82 true negatives, and 2 false negatives. The diagnostic values are as follows: sensitivity 83.3%, specificity 94.3%, positive predictive value 66.7%, and negative predictive value (NPV) 97.6%. The high NPV in our study supports the effectiveness of 18F-FDG PET/CT to rule out tumor in suspected paraneoplastic syndrome. Future research aims to analyze which patients with suspected paraneoplastic syndrome would benefit most from 18F-FDG PET/CT.
Genesis and classification of soils along a toposequence in the teaching and research farm of Taraba State University, Jalingo, Nigeria
Authors: Kefas P.K. , Ali S , Ofem K.I. , Umeugokwe C.P. 
Published: June 2020

Investigations were made to reflect the genesis and classification of soils along a toposequence in the Teaching and Research farm of Taraba State University. The topographic map of the farm was developed in the ArcGIS 10.8 environment and a profile graph plotted out. One profile pit was sunk in each elevation range to represent soils in the summit, shoulder, back slope, foot slope and toe slope positions using the free survey approach. The soils were deep, well drained and generally described as A, B, C soils with extensive B horizons that showed clear illuviation of clay and sesquioxides. The soils were brown (7.5YR 3/4), dark brown (10YR 3/3) and dark yellowish brown (10YR 4/6) in the surface and dominated by sand with bulk density values that exceeded 1.5 Mg/m3. Soil pH values were moderately acid to neutral while organic C and exchangeable bases were low in all but foot slope position where high values of organic carbon were obtained in the surface soils. The content of dithionite and oxalate Fe and Al, and their derivatives indicate intense weathering condition of the soils as well as their combined movement with clay to endopedons. However, moderately high CEC and the likely presence of montmorillonite (via CECE/clay) are indications that the soils had good potentials for agriculture. Among the soil forming processes in the area were mineralization, eluviation-illuviation as well as ferritization. The soils were classified as Typic Rhodustults (Pretic Acrisols), Arenic Haplustults (Chromic Acrisols) and Paleustults (Haplic Acrisols).
Keywords: pedogenesis, sesquioxides, classification, Basement Complex
Evaluation of the bio-toxicity and cytogenetic effects of methanolic leaf extract of <i>Heliotropium indicum</i> L.
Authors: Azeez Sekinat Okikiola , Ayo-Lawal Rachael Aderonke , Olawuni Idowu Julius , Abraham Olubukola Grace 
Published: June 2020

Heliotropium indicum L. has been shown to be very important in traditional healing medicine. However, many reports have indicated that the toxicity is not unconnected with pharmaceutical properties. This study therefore investigated the cytotoxic, genotoxic and biotoxic activities of methanolic leaf extract of H. indicum using Brine Shrimp lethality assay. The results revealed that the leaf extract of H. indicum showed lethality against the Brine Shrimps nauplii. The highest mortality was recorded at a concentration of 1000 μg/ml. The LC50 value of the Brine Shrimps mortality of the extract was recorded to be 461.04±10.02 μg/ml. In addition, the extract inhibited mitotic division in A. cepa root meristematic cells. The mitotic index was reduced from 59.99% in the control to 2.2% at 1000 μg/ml of the leaf extract. Chromosomal aberrations were observed at different concentrations. These include sticky chromosomes at metaphase and anaphase, chromosome breakage, degenerated and disoriented chromosomes at metaphase plate. It can be concluded from this present study that methanolic leaf extract of H. indicum was cytotoxic and genotoxic to Brine Shrimps and A. cepa cells respectively. Hence, caution should be exercised with respect to the consumption of H. indicum leaf in any form.
© 2020 International Formulae Group. All rights reserved.
Keywords: Mitotic index, chromosome aberrations, Brine Shrimps Lethality assay, Allium cepa assay, leaf extract
Food and feeding behavior of <i>Pellonula leonensis</i> (Boulenger, 1916) in Taabo Lake catchment areas (Bandama; Cote d’Ivoire)
Authors: Ahoutou Eric Konan , Dietoa Mathieu Yéhé , Da Costa Sebastino Kouassi , Avit François Louis Jean-Baptiste , Kouamelan Paul Essetchi 
Published: June 2020

Food and feeding behavior of P. leonensis was studied by analyzing the stomach contents of 864 individuals caught in the two main catchment areas in Taabo Lake, notably, at Taabo city and Antonio. Food items data were analyzed by using the three following methods: Relative Importance Index (IRI), Food Index of Geistdoerfer (Q) and Principal Component Analysis of Occurrence Index. The results of our study showed, that P . leonensis is zooplanktonophagus. Its diet also includes Diptera (Ceratopogonidae, Chaoboridae), Ephemeroptera (Baetidae, Libellulidae), Trichoptera and Hymenoptera (Formicidae). The Food Index of Geistdoerfer indicates, that the diet of this Fish species is composed of two main preferential preys: Copepods and Cladocerans. Furthermore, Chironomidae are frequent secondary preys and the others items are secondary order complementary preys. At least, the results of the principal component analysis of items occurrences show, that the prey frequency is function of P. leonensis catchment area or sub-area in Taabo Lake, and evolve inversely, according to climatic seasons.
© 2019 International Formulae Group. All rights reserved
Keywords: P. leonensis, feeding behavior, catch area, Taabo Lake, Côte d’Ivoire