bluuebunny/crossref_metadata_2025 huggingface dataset:
Cancer Management Practices during the Novel Coronavirus Disease 2019 (COVID-19) Pandemic
Authors: Tahseen Alrubai  , Arwa Mohsun Khalil  , Rasha Zaki
Published: April 2020

The COVID-19 pandemic has significantly impacted the management, treatment, and delivery of care to cancer patients. This impact has extended beyond patient care to include logistics, administration, and distribution of increasingly limited health care resources in cancer management healthcare institutions. Based on the collaborative experience of the management, administration, and medical staff at AL-Amal National Hospital (a tertiary health care institution delivering cancer management and treatment services in Baghdad, Iraq), measures were taken and recommendations were carefully formulated to safely proceed with therapy for cancer patients amid the current COVID-19 Pandemic. We hereby review and present AL-Amal National Hospital’s urgent plan to ensure that vital cancer services can still be delivered safely taking into consideration all the potential risks and benefits during this pandemic.

Keywords: COVID-19; Coronavirus; SARS-CoV-2; Cancer
COVID 19: Camostat and The Role of Serine Protease Entry Inhibitor TMPRSS2
Authors: Bittmann Stefan
Published: April 2020

According to the latest research, the novel coronavirus uses the protein angiotensin-converting enzyme 2 (ACE-2) as a receptor for docking to the host cell. Essential for entry is the priming of the spike (S) protein of the virus by host cell proteases. A broadly based team led by infection biologists from the German Primate Centre and with the participation of the Charité Hospital in Berlin, the Hanover Veterinary University Foundation, the BG-UnfallklinikMurnau, the LMU Munich, the Robert Koch Institute and the German Centre for Infection Research wanted to find out how SARS-CoV-2 enters host cells and how this process can be blocked [1]. They have published their findings in the journal "Cell" [1]. The team of scientists was initially able to confirm that SARS-CoV-2 docks to the host cell via the ACE-2 receptor. They also identified Transmembrane serine protease 2 (TMPRSS2) as the cellular protein responsible for entry into the cell [1-3].
Perfiles Sociométricos de Adolescentes en Grupos Escolares de Enseñanza Media y Media-Superior de la Habana
Authors: Torralbas Oslé Jorge Enrique , Batista Sardain Patricia , Naranjo Pou Susett de la Caridad
Published: April 2020

El objetivo de este trabajo fue establecer un perfil sociométrico en una muestra de adolescentes en el ámbito escolar. La muestra estuvo formada por 301 estudiantes de octavo grado y 344 estudiantes de onceno grado, distribuidos en 20 aulas (10 por grado) de distintas escuelas de La Habana. Se utilizó como instrumento de recogida de datos un cuestionario sociométrico de nominaciones directas e ilimitadas. Para el sistema de identificación de los tipos sociométricos se empleó el procedimiento de García-Bacete. Los resultados mostraron un perfil de éxito y un elevado rendimiento académico en adolescentes de piel blanca procedentes de familias con un nivel educativo alto. Por otro lado, se reflejaron desventajas para estudiantes negros y/o mestizos. Estos últimos, son los que más malestar manifestaron con el contexto educativo. Se observaron cambios en las razones de elección y rechazo social entre mujeres y hombres de onceno grado en comparación con octavo grado. Estos perfiles muestran cómo los grupos escolares median en el establecimiento de modelos de éxito, indiferencia, ambivalencia y rechazo. La escuela, como antesala y preparación para la vida social, debe atender estos modelos y subvertirlos cuando sea necesario.
Chemical Engineering Systems Stability
Authors: Christo Boyadjiev
Published: April 2020

A theoretical analysis of the stability of the non-equilibrium chemical engineering systems is presented. A unified approach is proposed for the creation of the mathematical models of the systems that allows the determination of the velocities at which the systems move to their thermodynamic equilibriums and their use for mathematical analysis of systems velocities stability. For this purpose is used mathematical stability theory, evolution (autonomous) equations, bifurcation theory (stable focuses, stable cycles), parameter eigenvalues and eigenfunctions.
Investigation of Antioxidant Activity and Physicochemical Properties of Local and Branded Honeys in Sindh, Pakistan
Authors: Muhammad Farooque Lanjwani  , Fayaz Ahmed channa
Published: April 2020

The honey is a sweetest natural products because it have unique properties, which honey bees are collect from dissimilar plants materials. The honey is used as a nutritional purposes for human consumption and also use for medicinal and industrial purposes. The honey also an important product in the international markets. The present study was conducted to analyzed the physicochemical and antioxidant activities of different honey samples in Sindh Pakistan. The 15 honey samples were analyzed for parameters including pH, electrical conductivity, moisture, viscosity, ash%, density and antioxidant activity. The average value of pH was founded 3.78 electrical conductivity 2492 μs/cm, viscosity 12.34 mpa, moisture 15.99%, density 0.78 and average value of antioxidant activity was founded 19.12 mg/100g.
The relationship between early and recent life stress and emotional expression processing: A functional connectivity study
Authors: Sokołowski Andrzej , Folkierska-Żukowska Monika , Jednoróg Katarzyna , Moodie Craig A. , Dragan Wojciech Ł.
Published: April 2020

The aim of this study was to characterize neural activation during the processing of negative facial expressions in a non-clinical group of individuals characterized by two factors: the levels of stress experienced in early life and in adulthood. Two models of stress consequences were investigated: the match/mismatch and cumulative stress models. The match/mismatch model assumes that early adversities may promote optimal coping with similar events in the future through fostering the development of coping strategies. The cumulative stress model assumes that effects of stress are additive, regardless of the timing of the stressors. Previous studies suggested that stress can have both cumulative and match/mismatch effects on brain structure and functioning and, consequently, we hypothesized that effects on brain circuitry would be found for both models. We anticipated effects on the neural circuitry of structures engaged in face perception and emotional processing. Hence, the amygdala, fusiform face area, occipital face area, and posterior superior temporal sulcus were selected as seeds for seed-based functional connectivity analyses. The interaction between early and recent stress was related to alterations during the processing of emotional expressions mainly in to the cerebellum, middle temporal gyrus, and supramarginal gyrus. For cumulative stress levels, such alterations were observed in functional connectivity to the middle temporal gyrus, lateral occipital cortex, precuneus, precentral and postcentral gyri, anterior and posterior cingulate gyri, and Heschl’s gyrus. This study adds to the growing body of literature suggesting that both the cumulative and the match/mismatch hypotheses are useful in explaining the effects of stress.
Analisa Pengaruh Tinggi Rendahnya Tekanan Minyak Lumas Pada Pompa Elektromotor Terhadap Pelumasan Mesin Induk
Authors: Khamdilah Ali , Djajari
Published: April 2020

Penelitian ini bertujuan untuk mengetahui dan menanggulangi saat terjadi kerusakan bosh pump dan injector diatas kapal agar dalam pengoperasiannya tidak ada masalah. Beberapa point penting saat akan mengoperasian bosh pump dan injektor dikapal, beberapa tahapan-tahapan yang harus dilakuan untuk menunjang kerja bosh pump dan injector yaitu seperti pengecekan pada bagian-bagian bosh pump dan injector, contohnya pada bosh pump dan injector perlu memperhatikan lebih teliti, karena pada bosh pump dan injector tersebut mudah menimbulkan pengabutan. apabila tahapan tersebut telah dilaksanakan maka pengoperasian bosh pum dan injector dapat dilakukan. Untuk perawatan bosh pump dan injector harus memperhatikan lama kerja bosh pump dan injektor tersebut running hours , apabila telah mencapai maksimal running hours maka kita wajib melaksanakan perawatan, walaupun mungkin belum terjadi kerusakan yang berbahaya. Oleh karena itu perawatan bosh pump dan injector sangat penting sekali agar bosh pump dan injector dapat bekerja dengan baik serta memperpanjang umur bosh pump dan injector tersebut.
Genre Maketh Dog?
Authors: Haas Mirjam , Kirchhoff Leonie
Published: April 2020

In The New Biography, Virginia Woolf notes that there is a paradox inherent to the genre of biography, i. e. that of »truth« and »personality«. »[P]ersonality«, she argues further, can only be truly conveyed through aesthetic selection and manipulation of the facts of a life, through fiction. Animal biography challenges both of these categories: what is a true dog character and how close can an author come to a life-like depiction of it? Virginia Woolf’s Flush: A Biography (1933) as well as the earliest English example of animal biography, Francis Coventry’s The History of Pompey the Little or The Life and Adventures of a Lap Dog (1751), are, in their own way, concerned with this issue. Influenced by their generic predecessors, the texts explore the narratological possibilities which an animal biography can offer, from satirical purposes to aesthetic objectives, from mere functionalisation to sentient animals. Woolf is essentially affected by contemporary discussions of biography and the challenges imposed by creating a dog »personality«. This is fundamental for the depiction of Flush as having an individual (anthropomorphised) character, rather than being depicted as a mere, and changeable type. Pompey the Little, in contrast, serves as a mostly silent and apparently objective observer of society, who, by watching and imitating his masters’ manners, offers eighteenth-century society a ruthlessly unembellished look into the mirror. Consequently, his animal character is, for satirical purposes, reduced to a mere type rather than a complex, not to mention »truth[ful]«, depiction of a nonhuman character. In this paper, we argue that genre expectations interact with two further aspects, i.e. literary history and historical as well as philosophical developments, and all three decisively influence how the two texts understand and relate human as well as non-human experience.
Heroischer Fatalismus
Authors: Detering Nicolas
Published: April 2020

The article re-evaluates the notion of heroic agency by arguing that many instances of heroism in early 20th century German literature rely not on great deeds, but on images of fatalist persistence. After a discussion of the conceptual elements and traditions of heroic persistence, the essay surveys variants of its semanticization between Nietzsche’s amor fati and German exile narrations of the 1940s. The perusal shows that ›heroic attentism‹ in modernist literature is less dependent on the respective political affiliations of the authors, but rather on the concept’s ability to adapt to discursive trends and remain applicable to different historical experiences.
Zum Aufbruch der Frühmittelaltergermanistik
Authors: Mierke Gesine
Published: April 2020

The article builds on current discussions about the status of the Early Middle Ages German philology and demonstrates on the basis of various thematic areas the research perspectives for the Old High German literature. Along three subject areas (historical narratology, interdisciplinarity, mediation of Old High German in school and college), currently discussed topics such as coherence, speech scenes, figures, sound studies as well as the tradition of early literature are outlined and their relevance is illustrated through selected text examples.
FUZZY MONTE CARLO SIMULATION OPTIMIZATION FOR SELECTING MATERIALS IN GREEN BUILDINGS
Authors: Marzouk Mohamed
Published: April 2020

Global interest in sustainable and green building design has been increasing in the last few decades.
This interest is strengthened by the fact that sustainable measures help in reducing negative social and environmental impacts
of buildings. For that, this paper aims to develop a mixed integer optimization model that aids architects/designers and owner
representatives during design stage in selecting building materials taking into consideration costs and risks that are involved
in the selection process. The model is developed as a simulation optimization tool based on the Leadership in Energy and
Environmental Design (LEED) rating system for new construction. The developed model allows deterministic and probabilistic
cost analysis of various design alternatives. In addition, it identifies the least possible cost to gain the LEED credits
and the risks associated with materials’ quantities and materials’ unit prices. To illustrate the use of the proposed tool,
a case study of an office building project constructed in Egypt is presented. An integrated Fuzzy Monte Carlo Simulation
(FMCS) analysis is performed to account for the associated risks of using new materials in the considered case study. The
proposed model is capable to capture the cost uncertainty of building materials and to identify the cost and sustainability
performance of various building materials by relating the LEED rating system for new construction.
SETTING PRIORITY LIST FOR CONSTRUCTION WORKS OF BICYCLE PATH SEGMENTS BASED ON ECKENRODE RATING AND ARAS-F DECISION SUPPORT METHOD INTEGRATED IN GIS
Authors: Zagorskas Jurgis , Turskis Zenonas
Published: April 2020

Bicycling and walking are essential elements of sustainable transportation. These transportation modes effectively reduce the negative environmental impacts of transport and improve the quality of life. It is not only recognized by governments but also naturally become more prevalent in modern society. Nowadays research on bicycling and interest in related topics is dramatically increasing, but while researchers focus on modern technologies and collecting data from portable devices, there are quite a few studies on the effectiveness of investments in bicycle infrastructure, and even less discussed is a question how to set the priorities for construction works of the bicycle path network. To fill this gap this paper presents the universal method of ranking the priorities for development and renewal of bicycle pathway segments. The process is realized by hybrid Multi-Criteria Decision-Making (MCDM) Additive Ratio ASsessment with Fuzzy (ARAS-F) model, based on Eckenrode rating. Given criteria and their weights apply only to the specifics of this case study, and it need adaptation if used for other territories. Presented case study gives insight into the task of upgrading bicycle networks – how to overcome the inequalities, fragmentation and build missing links. Developed hybrid MCDM model integrated into Geographic Information System (GIS) allows quickly find rationally balanced solutions and develop bicycle network in efficient way.
Properties of F Stars with Stable Radial Velocity Timeseries: A Useful Metric for Selecting Low-jitter F Stars
Authors: Luhn Jacob K. , Wright Jason T. , Isaacson Howard
Published: April 2020

In a companion paper, we have conducted an in-depth analysis of radial velocity jitter of over 600 stars, examining the astrophysical origins including stellar granulation, oscillation, and magnetic activity. In this paper, we highlight a subsample of those stars, specifically the main sequence and “retired” F stars—which we refer to as “MSRF” stars—that show low levels of RV jitter (<10 m s−1). We describe the observational signatures of these stars that allow them to be identified in radial velocity planet programs, for instance, those performing follow-up of transiting planets discovered by TESS. We introduce a “jitter metric” that combines the two competing effects of RV jitter with age: activity and convection. Using thresholds in the jitter metric, we can select both “complete” and “pure” samples of low jitter F stars. We also provide recipes for identifying these stars using only Gaia colors and magnitudes. Finally, we describe a region in the Gaia color–magnitude diagram where low jitter F stars are most highly concentrated. By fitting a ninth-order polynomial to the Gaia main sequence, we use the height above the main sequence as a proxy for evolution, allowing for a crude selection of low jitter MSRF stars when activity measurements are otherwise unavailable.
Small-scale Structure Traced by Neutral Hydrogen Absorption in the Direction of Multiple-component Radio Continuum Sources
Authors: Rybarczyk Daniel R. , Stanimirović Snezana , Zweibel Ellen G. , Murray Claire E. , Dickey John M. , Babler Brian , Heiles Carl
Published: April 2020

We have studied the small-scale distribution of atomic hydrogen (H i) using 21 cm absorption spectra against multiple-component background radio continuum sources from the 21-SPONGE survey and the Millennium Arecibo Absorption-Line Survey. We have found >5σ optical depth variations at a level of ∼0.03–0.5 between 13 out of 14 adjacent sightlines separated by a few arcseconds to a few arcminutes, suggesting the presence of neutral structures on spatial scales from a few to thousands of au (which we refer to as tiny-scale atomic structure, TSAS). The optical depth variations are strongest in directions where the H i column density and the fraction of H i in the cold neutral medium (CNM) are highest, which tend to be at low Galactic latitudes. By measuring changes in the properties of Gaussian components fitted to the absorption spectra, we find that changes in both the peak optical depth and the linewidth of TSAS absorption features contribute to the observed optical depth variations, while changes in the central velocity do not appear to strongly impact the observed variations. Both thermal and turbulent motions contribute appreciably to the linewidths, but the turbulence does not appear strong enough to confine overpressured TSAS. In a majority of cases, the TSAS column densities are sufficiently high that these structures can radiatively cool fast enough to maintain thermal equilibrium with their surroundings, even if they are overpressured. We also find that a majority of TSAS is associated with the CNM. For TSAS in the direction of the Taurus molecular cloud and the local Leo cold cloud, we estimate densities over an order of magnitude higher than typical CNM densities.
Parker Solar Probe Observations of Proton Beams Simultaneous with Ion-scale Waves
Authors: Verniero J. L. , Larson D. E. , Livi R. , Rahmati A. , McManus M. D. , Pyakurel P. Sharma , Klein K. G. , Bowen T. A. , Bonnell J. W. , Alterman B. L. , Whittlesey P. L. , Malaspina David M. , Bale S. D. , Kasper J. C. , Case A. W. , Goetz K. , Harvey P. R. , Korreck K. E. , MacDowall R. J. , Pulupa M. , Stevens M. L. , de Wit T. Dudok
Published: April 2020

Parker Solar Probe (PSP), NASA’s latest and closest mission to the Sun, is on a journey to investigate fundamental enigmas of the inner heliosphere. This paper reports initial observations made by the Solar Probe Analyzer for Ions (SPAN-I), one of the instruments in the Solar Wind Electrons Alphas and Protons instrument suite. We address the presence of secondary proton beams in concert with ion-scale waves observed by FIELDS, the electromagnetic fields instrument suite. We show two events from PSP’s second orbit that demonstrate signatures consistent with wave–particle interactions. We showcase 3D velocity distribution functions (VDFs) measured by SPAN-I during times of strong wave power at ion scales. From an initial instability analysis, we infer that the VDFs departed far enough away from local thermodynamic equilibrium to provide sufficient free energy to locally generate waves. These events exemplify the types of instabilities that may be present and, as such, may guide future data analysis characterizing and distinguishing between different wave–particle interactions.
Revision of Telothyria van der Wulp (Diptera: Tachinidae) and twenty-five new species from Area de Conservación Guanacaste in northwestern Costa Rica with a key to Mesoamerican species
Authors: Fleming AJ , Wood D. Monty , Smith M. Alex , Dapkey Tanya , Hallwachs Winnie , Janzen Daniel
Published: April 2020

We describe 25 new species in the genusTelothyriavan der Wulp, 1890 from Area de Conservación Guanacaste (ACG) in northwestern Costa Rica. All species herein described were reared from an ongoing inventory of wild-caught caterpillars spanning two families (Lepidoptera: Crambidae, and Tortricidae). Our study provides a concise description of each new species using morphology, life history, molecular data, and photographic documentation; a redescription of the genus, and its type species as well as a revised key to species ofTelothyriaoccurring in the Mesoamerican region. We also suggest seven new synonymies resulting in 11 new combinations.

The following 25 new species ofTelothyriaare described:T. aidanisp. n.,T. alexanderisp. n.,T. auranticrussp. n.,T. auriolussp. n.,T. bicuspidatasp. n.,T. carolinacanoaesp. n.,T. clavatasp. n.,T. cristatasp. n.,T. diniamartinezaesp. n.,T. duniagarciaesp. n.,T. duvalierbricenoisp. n.,T. eldaarayaesp. n.,T. erythropygasp. n.,T. fimbriatasp. n.,T. fulgidasp. n.,T. gloriashihezaraesp. n.,T. griseasp. n.,T. harryramirezisp. n.,T. incisasp. n.,T. manuelpereiraisp. n.,T. obscurasp. n.,T. omissasp. n.,T. osvaldoespinozaisp. n.,T. peltatasp. n., andT. ricardocaleroisp. n.

The following are proposed by Fleming & Wood as new generic synonyms ofTelothyria:ComatactaCoquillettSyn. n.,FloradaliaThompsonSyn. n.,PtilomyiaCurranSyn. n.,PtilomyiopsisTownsendSyn. n.,PtilomyoidesCurranSyn. n.,EuptilomyiaSyn. n.,EutelothyriaTownsendSyn. n.

The following new combinations are proposed as a result of the new synonymies:Telothyria bequaerti(Curran, 1925)Comb. n.,Telothyria cruenta(Giglio-Tos, 1893)Comb. n.,Telothyria frontalis(Townsend, 1939)Comb. n.,Telothyria insularis(Curran, 1927)Comb. n.,Telothyria itaquaquecetubae(Townsend, 1931)Comb. n.,Telothyria major(Thompson, 1963)Comb. n.,Telothyria micropalpus(Curran, 1925)Comb. n.,Telothyria minor(Thompson, 1963)Comb. n.,Telothyria nautlana(Townsend, 1908)Comb. n.,Telothyria plumata(Curran, 1925)Comb. n.,Telothyria trinitatis(Thompson, 1963)Comb. n.,Telothyria variegata(Fabricius, 1805)Comb. n.Musca tricinctaFabricius is synonymized underTelothyria variegataFabricius,Syn. n.

Telothyria schineriFleming & Woodnom. n.is proposed as a replacement name forMiltogramma brevipennisSchiner.

Additionally we provide redescriptions of two previously named species: the type speciesTelothyria cupreiventris(van der Wulp) due to its being the type species, andTelothyria relicta(van der Wulp) due to its having been reared as an outcome of the inventory.
Coexistence and extinction in a data-based ratio-dependent model of an insect community
Authors: Kuang Yang ,   School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ 85287, USA, Wang Kaifa ,   School of Mathematics and Statistics, Southwest University, Chongqing 400715, P.R. China
Published: April 2020

In theory, pure competition often leads to competitive exclusion of species. However, what we often see in nature is a large number of distinct predator or consumer species coexist in a community consisting a smaller number of prey or plant species. In an effort of dissecting how indirect competition and selective predation may have contributed to the coexistence of species in an insect community, according to the replicated cage experiments (two aphid species and a specialist parasitoid that attacks only one of the aphids) and proposed mathematical models, van Veen et. al. [5] conclude that the coexistence of the three species is due to a combination of density-mediated and trait-mediated indirect interactions. In this paper, we formulate an alternative model that observes the conventional law of mass conservation and provides a better fitting to their experimental data sets. Moreover, we present an initial attempt in studying the stabilities of the nonnegative steady states of this model.
A novel approach to modelling the spatial spread of airborne diseases: an epidemic model with indirect transmission
Authors: David Jummy F. ,   Department of Mathematics, University of British Columbia, Vancouver, B.C., Canada, Iyaniwura Sarafa A. , Ward Michael J. , Brauer Fred ,   Interdisciplinary Studies, University of British Columbia, Vancouver, B.C., Canada
Published: April 2020

We formulated and analyzed a class of coupled partial and ordinary differential equation (PDE-ODE) model to study the spread of airborne diseases. Our model describes human populations with patches and the movement of pathogens in the air with linear diffusion. The diffusing pathogens are coupled to the SIR dynamics of each population patch using an integro-differential equation. Susceptible individuals become infected at some rate whenever they are in contact with pathogens (indirect transmission), and the spread of infection in each patch depends on the density of pathogens around the patch. In the limit where the pathogens are diffusing fast, a matched asymptotic analysis is used to reduce the coupled PDE-ODE model into a nonlinear system of ODEs, which is then used to compute the basic reproduction number and final size relation for different scenarios. Numerical simulations of the reduced system of ODEs and the full PDE-ODE model are consistent, and they predict a decrease in the spread of infection as the diffusion rate of pathogens increases. Furthermore, we studied the effect of patch location on the spread of infections for the case of two population patches. Our model predicts higher infections when the patches are closer to each other.
Structure-Hepatoprotective Activity Relationship Study of Iridoids
Authors: Usmanov Durbek , Rasulev Bakhtiyor , Syrov Vladimir , Yusupova Ugiloy , Ramazonov Nurmurod
Published: April 2020

Iridoids, the largest class of monoterpenoids, are widespread group of substances present in various plant organisms. This study is devoted to investigation of the hepatoprotective activity of a series of iridoid compounds with application of a quantitative structure-activity relationship (QSAR) analysis. The investigated activity was based on in vitro experimental data, where iridoids' effects on CCl4-induced hepatocytes' damage were obtained. The QSAR analysis was carried out using a combination of genetic algorithm for variable selection and multiple linear regression analysis. A set of calculated descriptors was used for modeling, including quantum-chemical descriptors. Several high-performance models were developed and the best model describing the hepatoprotective activity of iridoids is proposed. The model obtained in this study shows not only a statistical significance, but also excellent predictive ability. The obtained model can be used to estimate the hepatoprotective activity of new substituted iridoids.
Semiochemical tracks of predaceous Coccinellidae (Coleoptera) modulate feeding attributes and assimilation of nutrients in Zygogramma bicolorata (Coleoptera: Chrysomelidae)
Authors: Patel Priya , Kumar Bhupendra , Upadhyay Rekha , Bhusal Daya Ram , Kumar Dinesh
Published: April 2020

Parthenium hysterophorus Linnaeus (Asteraceae) is a toxic weed found abundantly in major agroecosystems of the world. The weed is inhabited by both phytophagous Chrysomelidae (Coleoptera), used as biocontrol agents, and the predaceous Coccinellidae (Coleoptera). The present investigation was designed to assess the feeding attributes and larval development of Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae) in the presence of semiochemical tracks of coccinellid beetles. Results revealed that the presence of coccinellid semiochemical tracks on the weed reduced larval consumption rates, conversion efficiencies, and growth rates. The feeding deterrent effects of the semiochemical tracks were species specific. Larvae accumulated lower concentrations of glucose, proteins, and triacylglycerols and exhibited reduced body biomass in the presence of semiochemical tracks. The coccinellid semiochemical tracks also promoted Z. bicolorata larvae to accelerate their developmental rates and develop faster than the larvae reared in the absence of semiochemical tracks. While the fourth instars consumed food maximally and were heavier, their food use efficiencies were lower than the other instars. Our findings, therefore, suggest that the presence of semiochemical tracks of coccinellids on P. hysterophorus impedes its biological control by Z. bicolorata larvae.
Diptera communities of raptor (Aves) nests in Nova Scotia, Canada
Authors: Levesque-Beaudin Valerie , Sinclair Bradley J. , Marshall Stephen A. , Lauff Randolph F.
Published: April 2020

The identity, richness, and abundance of true flies (Diptera) from the nests of three cavity-nesting raptors (Aves) were investigated in northern Nova Scotia, Canada. After fledging, flies were extracted from the nest material using Berlese funnels within an emergence chamber. Thirty-one species/morphospecies from 14 families were collected, including eight new records for Nova Scotia and two new records for eastern North America.
A new genus of Harpalina Bonelli, 1810 from Madagascar and Europa Island (Coleoptera: Carabidae, harpalinae)
Authors: Facchini Sergio , Giachino Pier Mauro
Published: April 2020

Harpalomimus, a new genus of the subtribe harpalina Bonelli, 1810, is described for Harpalus bitinctus Jeannel, 1948 (type species) from Madagascar and for H. europae n. sp. from Europa Island. The habitus and male genitalia of the treated taxa are illustrated.
The role of hydroxychloroquine sulfate in the geriatric patient with coronavirus disease 2019 (COVID-19). What is useful to know for the geriatrician?
Authors: Manzo Ciro
Published: April 2020

The role of hydroxychroloquine (HCQ) sulfate as therapeutic option in coronavirus disease 2019 (COVID-19) patients aroused great interest and hope, so much so as to authorize several studies in the world. Despite the beneficial effects demonstrated in vitro and in some case-series, doubts remain about its clinical use, so that at present more than 20 different therapeutic study protocols have been proposed. Very recently, a protocol has been authorized by the Italian Medicines Agency (AIFA), in order to evaluate the efficacy of out-of-hospital treatment with HCQ in the reducing viral loads and need for hospitalization in symptomatic COVID-19 infected patients who are confined at home. The article describes lights and shadows of HCQ therapy in the elderly and geriatric patients affected by COVID-19, and suggests that the geriatrician should use HCQ only after careful patient selection and be aware of its pharmacokinetic properties and adverse effects, before better-designed studies determine their benefit, if any, in treating COVID-19.
Portal Vein Innervation Underlying the Pressor Effect of Water Ingestion with and without Cold Stress
Authors: Tsai Shi-Hung , Lin Jou-Yu , Lin Yu-Chieh , Liu Yia-Ping , Tung Che-Se
Published: April 2020

Water-induced pressor response appears mediated through the activation of transient receptor potential channel TRPV4 on hepatic portal circulation in animals. We sought to elucidate the mechanism of portal vein signaling in this response. Forty-five rats were divided into four groups: control rats without water ingestion (WI), control rats with WI, portal vein denervation rats with WI (PVDWI), and TRPV4 antagonist-treated rats with WI (anti-TRPV4WI). Cardiovascular responses were monitored throughout the experiments. Data analysis was performed using descriptive methods and spectral and cross-spectral analysis of blood pressure variability (BPV) and heart rate variability (HRV). Key results showed that at baseline (PreCS) before cold stress trial (CS), WI elicited robust pressor and tachycardia responses accompanied by spectral power changes, in particular, increases of low-frequency BPV (LFBPV) and very-LFBPV (VLFBPV), but decrease of very-low-frequency HRV. PVDWI, likewise, elicited pressor and tachycardia responses accompanied by increases of high-frequency BPV, high-frequency HRV, LFBPV, low-frequency HRV, and VLFBPV. When compared with WI at PreCS, WI at CS elicited pressor and tachycardia responses accompanied by increases of high-frequency BPV, LFBPV, and VLFBPV, whereas in WI, the CS-evoked pressor response and the accompanied LFBPV and VLFBPV increases were all tended augmented by PVDWI. When compared with WI and PVDWI at both PreCS and CS, however, anti-TRPV4WI attenuated their pressor responses and attenuated their increased LFBPV, VLFBPV, and very-low-frequency HRV. The results indicate that the portal vein innervation is critical for a buffering mechanism in splanchnic sympathetic activation and water-induced pressor response.
О влиянии поверхностных дефектов на конденсат электронных пар в квантовом проводе
Authors: Kerner Joachim
Published: April 2020

Исследуется влияние поверхностных дефектов на конденсат электронных пар в квантовом проводе. Для учета таких поверхностных эффектов на основе полученных ранее результатов сформулирована простая математическая модель. Для системы невзаимодействующих пар доказано, что объемный конденсат разрушается. Показано, что, когда число поверхностных дефектов не слишком велико, при учете отталкивания между парами конденсат восстанавливается при плотностях пар, больших критической.
Пороговые эффекты в системе двух фермионов на оптической решетке
Authors: Lakaev Saidakhmat Norzhigitovich , Abdukhakimov Saidakbar Khazratkul ugli
Published: April 2020

Для широкого класса двухчастичных операторов Шредингера ${H(k)=H_0(k)+V}$, $k\in\mathbb T^d$, соответствующего системе двух фермионов на $d$-мерной, $d\ge 1$, целочисленной кубической решетке, доказано, что если выполняются следующие условия: во-первых, двухчастичный оператор $H(0)$, соответствующий нулевому значению квазиимпульса, имеет либо собственное значение, либо виртуальный уровень на нижнем пороге существенного спектра; во-вторых, одночастичный свободный (невозмущенный) оператор Шредингера в координатном представлении порождает сохраняющую положительность полугруппу, то для любых значений квазиимпульса $k\in\mathbb T^d$ дискретный спектр оператора $H(k)$ ниже порога не является пустым множеством.
MANAJEMEN PROGRAM BIMBINGAN DAN KONSELING DI SEKOLAH MENENGAH KEJURUAN (SMK) (Studi Deskriptif pada Sekolah Menengah Kejuruan)
Authors: Ahmad Faris Al Anshari
Published: April 2020

This study aims to find out to find out the advantages and disadvantages of BK programs in schools so that they can be improved and developed better. To find out the BK Program mechanism in Vocational Schools uses Comprehensive BK patterns to know and understand what plans are carried out in a comprehensive guidance and counseling service program. In this study using a descriptive study method using a non-test instrument, namely a questionnaire from ASCA National Audit Program Model that has been translated according to the context of BK in Indonesia. This instrument was developed by the American School Counselor Association in 2005 as an evaluation tool to determine the level of implementation of comprehensive guidance and counseling programs to assist in future decision making. Based on research conducted on the description of the implementation of the BK service management system in three Vocational High Schools in the City of Jakarta the results showed that no school was included in the high category, then there was a school that had a low category of BK service management systems, Vocational School Muhammadiyah 6 Jakarta, and the moderate category Vocational High School 31 Jakarta and Budi Mulia Utama Vocational School.

 

Abstrak

Penelitian ini bertujuan untuk mengetahui Untuk  mengetahui kekurangan dan kelebihan program BK di sekolah agar diperbaiki dan dikembangkan lebih baik lagi.Untuk mengetahui mekanisme Program BK di SMK menggunakan pola BK Komprehensif untuk mengetahui dan memahami perencanaan apa saja yang dilakukan dalam program layanan bimbingan dan konseling komprehensif. Pada penelitian inimenggunakanmetode studi deskriptif dengan memakai instrument non tes yakni angket dari ASCA National Model Program Audit yang telah diterjemahkan sesuai konteks BK di Indonesia. Instrumen ini dikembangkan oleh American School Counselor Association pada tahun 2005 sebagai alat evaluasi untuk menentukan tingkat keterlaksanaan program bimbingan dan konseling komprehensif untuk membantu dalam pengambilan keputusan di masa depan. Berdasarkan penelitian yang dilakukan terhadap gambaran  pelaksanaan sistem manajemen layanan BK di tiga Sekolah Menengah Kejuruan di Kota Jakarta didapat hasil bahwa belum ada sekolah yang masuk dalam kategori tinggi, kemudian ada sekolah yang memiliki tingkat penerapan sistem manajemen layanan BK dengan kategori rendah, yaitu SMK Muhammadiyah 6 Jakarta, dan kategori sedang yaitu SMKN 31 Jakarta dan SMK Budi Mulia Utama.

Kata Kunci:  Program Bimbingan dan Konseling
PENGARUH MEDIA PEMBELAJARAN DAN KEMANDIRIAN BELAJAR TERHADAP KETERAMPILAN PROSES IPA DI SEKOLAH DASAR
Authors: Fetty Primadini  , Nadiroh  , Edwita  , Lamria
Published: April 2020

The research aims to find out the effect of learning media and learning independence on the skills of science processes in elementary schools. The method used in this study was an experiment with design research with 2x2 by level treatment design. Sampling in this study was carried out by simple random sampling, namely Duren Sawit Village Primary School and selected Duren Sawit 07 Pagi State Elementary School. The results of this study indicate that the science process skills between students taught using visual learning media are higher than students taught using audio visual learning media. The average science process skills of students who learn use visual learning media are higher than students who learn by using audio visual learning media.

 

Abstrak

Penelitian bertujuan untuk mengetahui perngaruh media pembelajaran dan kemandirian belajar terhadap keterampilan proses IPA di Sekolah Dasar. Metode yang digunakan dalam penelitian ini adalah eksperimen dengan desain peneitian eksperimen dengan rancangan treatment by level 2x2, Pengambilan sampel dalam penelitian ini dilakukan secara simple random sampling yaitu Sekolah Dasar Negeri Kelurahan Duren Sawit dan yang terpilih Sekolah Dasar Negeri Duren Sawit 07 Pagi. Hasil penelitian ini menunjukan bahwa Keterampilan proses IPA antara siswa yang diajarkan menggunakan media pembelajaran visual lebih tinggi dari pada siswa yang diajarkan menggunakan media pembelajaran audio visual. Rata-rata keterampilan proses IPA siswa yang belajar menggunakan media pembelajaran visual lebih tinggi dibandingkan siswa yang belajar dengan menggunakan media pembelajaran audio visual.

Kata kunci: Media Pembelajaran, Kemandirian Belajar, Keterampilan Proses IPA
PERANAN ADMINISTRASI DAN MANAJEMEN DALAM MENYUKSESKAN PROGRAM SPORT FOR ALL
Authors: Ahadin
Published: April 2020

Perkembangan organisasi atau ide-ide yang dimiliki umat manusia pada umumnya ada kesamaan, seperti keinginan untuk melakukan aktivitas, membangun suatu lembaga keolahragaan tertentu dibutuhkan usaha bersama yang terkoordinasi, karena itu manusia membutuhkan suatu administrasi yaitu suatu organisasi yang berfungsi untuk menjalankan suatu usaha bersama yang telah dibuat dengan tujuan tertentu. Administrasi adalah suatu organisasi yang dijalankan dengan kemampuan, efisien, tetap pada tujuan, dengan individu-individu berkerja dengan suatu panduan yang jelas, senang, kooperatif, dan produktif, dalam mencapai suatu tujuan yang telah ditetapkan. Untuk mencapai tujuan yang telah ditetapkan diperlukan suatu manajemen atau seorang pemimpin yang menguasai hubungan kemanusiaan, memiliki kemampuan untuk memprediksi masa depan, dapat membuat suatu perencanaan, memiliki kapasitas untuk mengkoordinasikan kemampuan individu di dalam organisasi. Dalam usaha untuk menyukseskan Program Sport for All seorang pemimpin sebaiknya memiliki: keterampilan konseptual, integritas diri, keterampilan berhubungan dengan orang, kemampuan dalam mengambil keputusan, memiliki kesehatan dan kebugaran jasmani yang baik, memiliki keinginan untuk menerima tangung-jawab, memiliki keterampilan mempergunakan komando atau perintah, memiliki kapasitas intelektual. Sport for All adalah suatu gerakan masyarakat internasional dalam menyukseskan olahraga dengan konsep bahwa olahraga merupakan: kebutuhan, alat rekreasi, untuk penemuan kembali budaya, olahraga tradisional, sebagai realisasi dari Piagam Internasional tentang pendidkan jasmani dan olahraga UNESCO, yaitu badan PBB dalam bidang ilmu pengetahuan dan kebudayaan.
THE DIFFICULTIES AND PROBLEMS FACED BY INDONESIAN STUDENTS WHILE STUDYING IN AN AUSTRALIAN UNIVERSITY
Authors: Saiful
Published: April 2020

One of the issues that relates to Indonesian international students’ perceptions about the quality of higher education is with regards to the difficulties and problems they face while studying in an Australian university. A survey was conducted with 78 First Year to Fourth Year Indonesian international undergraduate students undergoing a range of programs and courses at a university in Australia to determine their perspective of quality in higher education. Further interviews were carried out with nine Indonesian international students to gain insights into their difficulties and learning experiences. Based on these interviews, the three main difficulties highlighted by Indonesianinternational students are: different learning styles, cultural barriers and language problems. This paper seeks to highlight the initial problems faced by Indonesian international students in terms of learning styles and how they strive to overcome these difficulties through discussions and practice. These findings present implications for the use of appropriate teaching strategies with Indonesian international students.
STORING THE INFORMATION INTO LONG TERM MEMORY AND ITS IMPACTS ON LEARNING MATHEMATICS
Authors: Fitriati
Published: April 2020

Memory obviously plays an important role in knowledge retention. In particular, when learning mathematics students claim that much of what is taught in classrooms is soon forgotten and learning mathematics is difficult or not interesting. Neuroscience, through its study on long term memory, has tried to identify why these phenomena occur. Then some possible solutions are suggested. Understanding the processes of memory storage including acquisition, consolidation, recoding, storing and retrieval helps teachers to efficiently plan for effective learning activities. Therefore, this paper outlines the potential implication of long term memory to mathematics learning as well as suggests some learning strategies that might solve students‟ and teachers‟ problem in learning mathematics.
HUBUNGAN ANTARA MOTIVASI DAN AKTIVITAS BELAJAR SISWA TERHADAP HASIL BELAJAR KOGNITIF SISWA DENGAN PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION PADA KONSEP EKOSISTEM
Authors: Nurmahni Harahap
Published: April 2020

One of the very important process in education is a learning process. The success of the learning process is necessary to motivate the student to be able to encourage their learning activities. STAD cooperative learning is a learning model that trains students to work together in a small group and help each other in solving problems, thus the gain mastery of subject matter understanding. STAD cooperative learning model is not much different from the usual lesson by the teacher. Teachers still contribute in the learning process so that not just released and expected students still easy to adaptable. The purpose of this study was to find out the relationship between motivation and student learning activities with the implementation of STAD. This study used quasi-experimental research method. The population of this study was all first grade students in Model Islamic State Junior High School (MTsN) of Banda Aceh amounting to 39 students chosen from 11 classrooms. Samples were collected by using random sampling technique. Instruments of this study were cognitive learning outcomes test, student motivation questionnaire, and student learning activity observation sheet. Data were analyzed by multiple correlation test at significant level of 0.05. The results of the analysis of research data shows the value of R = 0.56 with P 0.00 (< 0.05) then Ho is rejected and Ha accepted. It can be concluded that there was a significant relationship on student motivation and learning activity toward student cognitive learning outcomes by the implementation of STAD. In order to improve the cognitive learning outcomes,motivation and learning activities optimally it is expected that biology teachers implemented STAD than can actively involve the students in learning process.
IDENTIFIKASI POPULASI MAKROZOOBENTOS DI KAWASAN EKOSISTEM MANGROVE DESA LADONG ACEH BESAR
Authors: Lili Kasmini
Published: April 2020

Desa Ladong memiliki keanekaragaman mangrove yang masih tinggi yang berpotensi untuk tetap dilestarikan, mengingat fungsi mangrove sangat penting bagi kehidupan biota yang berasosiasi di kawasan mangrove serta sebagai pendukung dalam kegiatan tambak masyarakat. Penelitian ini bertujuan untuk melihat peranan dari keanekaragaman jenis Mangrove terhadap kelangsungan hidup Makrozoobentos ekosistem tersebut dengan melihat kondisi lingkungan serta hubungan antara Mangrove dan makrozoobentos. Pengambilan data dilakukan pada September 2013 dengan metode transect line plots (English at al., 1994). Sampel diambil menggunakan pipa paralon berdiameter 11 cm kemudian di identifikasikan di Laboratorium Terpadu Fakultas Kelautan Perikanan. Dari hasil penelitian, ditemukan tiga kelas makrozoobentos yaitu : Malacostraca dan Gastropoda, yang terdiri dari 6 spesies Makrozoobentos. Kelas Gastropoda memiliki persentasi tertinggi, mencapai 72,28%. Untuk jenis Mangrove, ditemukan 7 spesies yaitu Lumnitzera littorea, Aegiceras floridum, Bruguiera cylindrica, Rhizopora apiculata, Avicenia alba, Soneratia alba dan Lumnitzera racemosa.
PERBANDINGAN PRESTASI BELAJAR SISWA YANG DIAJARKAN DENGAN METODE THINK PAIR SHARE DAN METODEPEMBELAJARAN LANGSUNG PADA MATERI GEMPA BUMI
Authors: Musbir
Published: April 2020

Penelitian ini berjudul ”Perbandingan Prestasi Belajar Siswa yang Diajarkan dengan Metode Think Pair Share dan Metode Pembelajaran Langsung pada Materi Gempa Bumi” (Suatu Studi pada SMP Negeria 1 Peusangan Siblah Krueng Kabupaten Bireuen). Tujuannya adalah untuk mengetahui perbedaan prestasi belajar siswa yang diajarkan dengan metode Think Pair Share dan metode Pembelajaran Langsung pada materi gempa bumi di kelas VII SMP Negeri 1 Peusangan Siblah Krueng. Metode yang digunakan dalam penelitian ini adalah metode penelitian kuantitatif dengan jenis penelitian eksperimen semu (Quasi eksperiment). Populasi dari penelitian ini adalah seluruh siswa kelas VII SMP Negeri 1 Peusangan Siblah Krueng Kabupaten Bireuen dengan jumlah siswa 48 orang. Mengingat populasi yang tidak terlalu banyak, maka semua populasi dalam penelitian ini dijadikan sampel penelitian. Dengan demikian, penelitian ini disebut Penelitian Total Sampling. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah teknik tes. Berdasarkan hasil pelaksanakan tes yang penulis lakukan maka diperoleh nilai rata-rata siswa yang diajarkan dengan menggunakan metode TPS (Think Pair Share) adalah 72,59 dan nilai rata-rata yang diajarkan dengan menggunakan metode pembelajaran langsung (Direct Instruction) adalah 70,64. Hasil analisis data diperoleh nilai thitung = 0,33 dan ttabel = 2,02 dengan derajat kebebasan (dk) n1 + n2 – 2 = 24 + 24 – 2 = 46, berarti nilai thitung lebih kecil dari pada nilai ttable, maka dalam hal ini menerima hipotesis nol (Ho) dan menolak hipotesis alternatif (Ha). Dengan demikian dapat disimpulkan bahwa tidak terdapat perbedaan antara hasil belajar siswa yang diajarkan dengan menggunakan metode TPS (Think Pair Share) dan metode pembelajaran langsung (Direct Instruction) pada materi gempa bumi pada siswa kelas VII/1 dan VII/2 SMP Negeri 1 Peusangan Siblah Krueng Kabupaten Bireuen.