bluuebunny/crossref_metadata_2025 huggingface dataset:
Histological Sublethal Concentration Effect on the Liver of Clarias Batrachus (Linn.) Exposed to Malathion
Authors:   Department of Zoology, Bundelkhand University, Jhansi, India., Diwakar Ashutosh , Pandey Devendra ,   Department of Zoology, Bundelkhand University, Jhansi, India.
Published: April 2020

Malathion is a vital agent and indicator that kills targeted (harmful) organic of flora and fauna. Word „pest‟ has comprised of detrimental animals, plants and microorganisms. These are widely used all over the world in agriculture. several agricultural pesticides nowadays in the trend in which organisms toxicity and harmful alterations are noticeable. Malathion pesticides used as agricultural benefits for crop production. This type of pesticide mostly affects the histological and biochemical parameters of the organism. This study focuses on alterations of malathion observing special site tissues of freshwater fish Clarias batrachus (Linn.,1758). Malathion (50% EC) was ordered from super ford insecticides limited, Sikandrabad (BSR) and a volumetric practical performed to result out the LC50 96 hours of malathion. Value of malathion LC50 96 hours calculated 0.25 ppm. The SLC as 0.025 parts per million was fixed by using 1/10th of LC50 at 96 hours [1]. The effect of malathion SLC (1/10 of 96 hours of LC50) was investigated on the histology of the liver in treated groups of host fish. Specific changes were checked in liver histology using control and treated groups. Histological observations as hepatocytes degeneration, Necrosis in hepatocytes, vacuolar degeneration, congestion were recorded and analyses as per experimental requirement. The main objective of this article is to carry out a histological study to check the impacts of the Sublethal concentration of Malathion (EC50%) on the liver of “Clarias batrachus.”
A Review: Phylogeny Construction Methods
Authors:   (M.Tech Scholar, Govt. Women Engineering College, Ajmer) Rajasthan, India., Shaktawat Priyanka , Bhurani Ms. Parvati ,   (Assistant Professor, Govt. Women Engineering College, Ajmer) Rajasthan, India
Published: April 2020

In bioinformatics, the phylogenetics is the study of evolutionary pathway that gives the relationship between various organisms. Phylogenetics act as an important tool of bioinformatics as it handle huge biological data in the form of evolutionary trees. This relationship can be inferred on the basis of the heritable traits such as nucleotide or protein sequences. The phylogenetic tree can be constructed using different methods: WPGMA, UPGMA, neighbor joining, maximum parsimony or etc. Phylogeny has become the central part of bioinformatics and can be used in different fields to solve their respective problems such as forensics, drug discovery, and vaccine development etc.
Enhancement of Cloud Stationed Healthcare Information Security by Dimensionality Reduction
Authors:   M.Sc.,M.Phil., Research Scholar , S.T. Hindu College in Nagercoil, Tamil Nadu, India., Sophia S. Gnana , Thanammal Dr. K. K ,   Associate Professor, Department of Computer Science and Applications S.T.Hindu College, Nagercoil, Tamil Nadu, India.
Published: April 2020

The security of healthcare information can be secured by the use of cloud environment, and takes finite estimating power. The security of patient’s data shared over the internet can be distressed by healthcare institutions because of growing high popularity. The Eigen decomposition (ED) and Single Value Decomposition (SVD) of a matrix are relevant to maintain the security and the study of Dimension Reduction and its advantages are also applicable. To reduce the data without loss, Principal Component Analysis (PCA) is used. Fast retrieval methods are critical for many large-scale and data-driven vision applications. Recent work has explored ways to embed highdimensional features or complex distance functions into a lowdimensional space where items can be efficiently searched. However, existing methods do not apply for high-dimensional kernel based data The proposed method covers how to generalize locality-sensitive hashing and the implementation of Kernel PCA based methods for Dimensionality Reduction can be applied to Medical data provides high security and utilize the resources of the cloud to inhibit data efficiently.
Plastic footprint: l’impronta (di plastica) che ognuno di noi lascia sul Pianeta
Authors: Lombardi Vallauri Edoardo
Published: April 2020

Una nostra lettrice, traducendo dall'inglese un testo sulla
grande quantità di plastica che finisce nei mari, si trova davanti
al problema di come tradurre l'espressione plastic
footprint.
Ci può essere a scuola l’assegno dei compiti?
Authors: D'Achille Paolo , Patota Giuseppe
Published: April 2020

Alcuni lettori ci chiedono se è corretto usare – come avviene in particolare in Campania – il nome maschile assegno nel significato di ‘compiti assegnati per casa’: “Devo fare l’assegno dei compiti” (o, semplicemente, “Devo fare l’assegno”); “La professoressa ha dato l’assegno dei compiti”, “Scrivere l’assegno sul diario”, e così via.
THE EFFECT OF VARIOUS COMPOSTS ON SOIL PROPERTIES
AND COTTON YIELD
Authors: Sayimbetov Alisher  , Elemesova Nargiza Isataevna
Published: April 2020

This article presents the positive effects of various composts on soil fertility and cotton productivity. It also describes the use of composts with different proportions of phosphogypsum to various organic materials to ensure the growth and high yield of cotton by improving soil bulk density, porosity, water resistance, structural state and agrochemical properties.
KEYWORDS: soil, fertility, soil properties, bulk density, porosity, compost, cotton yield, yield.
saqarTveloSi aiv/Sidsis koinfeqcebis B da C virusuli hepatitebis
statistika da Tanmxlebi oraluri manifestaciebi
Authors: buxnikaSvili eTer
Published: April 2020

reziume:
naSromis mizans warmoadgens saqarTveloSi aiv/SidsiT pacientebSi B da C hepatitis
virusebiT koinfeqciis SemTxvevebisa da Tanmxlebi oraluri gamovlinebebis Seswavla.
2014 wels registrirebuli axal aiv infeqciaTa ganawileba stadiebis mixedviT aseTi
iyo:
• 15 (2,69%±6,02%) gamovlinda daavadebis mwvave fazaSi.
• 76 (13,48%±2,53%) gamovlinda daavadebis asimptomuri stadiaze da pacientTa
momarTvianobis mizezi iyo epidCveneba, orsuloba an riskis Semcveli qcevebi;
• 176 (31,21%±1,49%) iyo simptomuri araSidsis stadiaze;
• 293 (51,95%±0,96%) gamovlinda Sidsis stadiaze.
• 4 (0,71%±11,83%) ganisazRvra rogorc daudgeneli.
2014 wels gamovlenil aiv infeqciaTa Soris ukve ganviTarebul Sidsis stadiaTa
raodenoba maRalia. es adasturebs imas, rom qveyanaSi sakmaod maRalia aiv infeqciis
SemTxvevebis gviani diagnostika.
sul, 564 aiv inficirebul pacientTa Soris gamovlenili Tanmxlebi oraluri
manifestaciebi aReniSna 293 (52,32%±0,95%) pacients. maTi gadanawileba daavadebis
stadiebis mixedviT aseTia:
• mwvave aiv infeqciis stadiaze aRiniSna sul 2 (13,33%±2,55%) gamovlineba;
• asimptomuri aiv infeqciis dros - 1 (1,32%±8,65%) SemTxveva;
• simptomuri araSidsis stadiaze - 65 (36,93%±1,31%);
• Siidsis stadiaze - 225 (76,79%±0,55%).
piris Rrus lorwovanze gamovlenili sxvadasxva daavadebaTa statistika ki aseTi iyo:
• kandidozebiT gamowveuli SemTxvevaTa wili iyo 67.1%(±0,7%);
• herpesvirusuli dazianebebiT - 37.2%(±1,3%);
• gingivo-stomatitebi - 6,4%(±3,8%):
• verukozuli leikoplakia - 6.2%(±3,9%)
• kapoSis sarkoma – 0.18%(±23,55%);
• ara-hojkinis limfoma - 0.3%(±18,23%).
Sesabamisad, mniSvnelovania davaskvnaT, rom saqarTvelosTvis kvlav aqtualuria
aiv/Sidsis drouli gamovlenis sakiTxi. aucilebelia jandacvis sistemis pirveladi da
meoreuli rgolis dawesebulebebis, maT Soris stomatologiuri klinikebis, aiv infeqciis
Sesaxeb informaciuli uzrunvelyofa, rac Cvens qveyanaSi gaaumjobesebs aiv/SidsiT
pacientebis droul gamovlenas da garkveulwilad Seamcirebs mzard epidemias.
On The Road To Fairness For All
Authors: Dahlan Nur Khalidah , Mohd Fadzil Rozlinda
Published: April 2020

Equitable economic development is an essential element in order to achieve justice and equality in a multi-ethnic society. The reality of Malaysia, which is a country of multi-ethnicity, multi-religion and multi-cultural societies, demands a concept of justice and equality that is different from other countries, particularly the ones with homogenous societies. The highest law of the land places Islam, the religion associated with one of the main ethnicity, as the official religion of the nation and allowed the duality of economic system, in particular banking system, whereby conventional banking system exists side-by-side with the Shariah-compliant, Islamic one. By reviewing the pertinent literature on the development of Islamic banking, the reviewed cases on Islamic banking and its contributions to Malaysian society regardless of ethnicity and religion. The discussion in this paper therefore will be directed towards highlighting the laws and cases on Islamic banking and its implication to enhance the application of Islamic banking laws to consumers regardless of ethnicity and religion, in order to maintaining fairness and justice in a multi-ethnic society.
Aldehydes as powerful initiators for photochemical transformations
Authors: Theodoropoulou Maria A , Nikitas Nikolaos F , Kokotos Christoforos G
Published: April 2020

Photochemistry, the use of light to promote organic transformations, has been known for more than a century but only recently has revolutionized the way modern chemists are thinking. Except from transition metal-based complexes, small organic molecules have been introduced as catalysts or initiators. In this review, we summarize the potential that (aromatic or aliphatic) aldehydes have as photoinitiators. The photophysical properties and photoreactivity of benzaldehyde are initially provided, followed by applications of aldehydes as initiators for polymerization reactions. Finally, the applications to date regarding aldehydes as photoinitiators in organic synthesis are presented.
Three new O-isocrotonyl-3-hydroxybutyric acid congeners produced by a sea anemone-derived marine bacterium of the genus Vibrio
Authors: Li Dandan , Harunari Enjuro , Zhou Tao , Oku Naoya , Igarashi Yasuhiro
Published: April 2020

Liquid cultures of Vibrio sp. SI9, isolated from outer tissue of sea anemone Radianthus crispus, was found to produce three new O-isocrotonyl-3-hydroxybutyric acid derivatives, O-isocrotonyl-3-hydroxypentanoic acid (1), O-isocrotonyl-3-hydroxyhexanoic acid (2), and O-(Z)-2-hexenoyl-3-hydroxybutyric acid (3), together with known O-isocrotonyl-3-hydroxybutyric acid (4). The structures of 1-3 were established by spectroscopic analyses of NMR and mass spectrometry coupled with anisotropy-based chiral analysis, revealing the same (R)-configurations for all congeners 1-4. Compounds 1-4 were weakly growth-inhibitory against a marine fish ulcer pathogenic bacterium, Tenacibaculum maritimum NBRC16015.
KRITIK IMMANUEL KANT TERHADAP FAHAM RASIONALISME DAN EMPIRISME
Authors: Budiwan Jauhan
Published: April 2020

Immanuel Kant is one of the most influential philosophers in the history of Western philosophy. His contributions to metaphysics, epistemology, ethics, and aesthetics have had a profound impact on almost every philosophical movement that followed him. This portion will focus on his metaphysics and epistemology in one of his most important works. The Critique of Pure Reason, A large part of Kant’s work addresses the question “What can we know?” The answer, if it can be stated simply, is that our knowledge is constrained to mathematics and the science of the -natural, empirical world. It is impossible, Kant argues, to extend knowledge to the supersensible realm of speculative metaphysics. The reason that knowledge has these constraints, Kant argues, is that the mind plays an active role in constituting the features of experience and limiting the mind's access to the empirical realm of space and time. In order to understand Kant's position, we must understand the philosophical background that he was reacting to. First, 1 will present a brief overview of his predecessor's positions with a brief statement of Kant's objections, then I will return to a more detailed exposition of Kant's arguments. There are two major historical movements in the early modem period of philosophy that had a significant impact on Kant; Empiricism and Rationalism,
Dual Band Gap Coupled Patch Antenna for Wireless Communications
Authors: Pandey Akhilesh Kumar , Singh Rajeev
Published: April 2020

A dual frequency resonance antenna is proposed by means of a rectangular microstrip patch antenna with parasitic elements. Analysis is made using concepts of circuit theory and the measured and theoretical results are compared with simulation results obtained with IE3D simulation software. Error between experimental and theoretical and simulated values is within 1.5% and frequency ratio of the simulated, theoretical and experimental values is found to be 2.0
An approach to realisation of a Radial Phase mask using 3-D printing in transparent PLA
Authors: Agarwal Simran , Jolivot Romuald , Mohammed Waleed S.
Published: April 2020

In the recent years, many different techniques and algorithms have been devised to design diffractive optical elements (DOE’s) for the purpose of beam shaping. This paper demonstrates an approach to realise a 3-D printed radial phase mask to be used in beam shaping to achieve a beam profile closer to the flattop. An iterative algorithm approach is employed to simulate the phase masks in greyscale and subsequently into STL format. These 3-D printed masks are used as an optical element and characterised using an experimental setup. The images of the light after the characterisation are examined and compared with the simulated results. Therefore, this method reduces the complexity as 3-D printing the masks eliminates the need for fabrication, processing time and number of components necessary to obtain a flattop beam profile.
Moving Reference Planes of Unit Cells of Reciprocal Lossy Periodic Transmission-Line Structures
Authors: Lamultree Suthasinee
Published: April 2020

An analysis of moving reference planes of unit cells of reciprocal lossy periodic transmission-line (TL) structures (RLSPTLSs) by using the equivalent bi- characteristic-impedance transmission line (BCITL) model is presented. Applying the BCITL theory, only the equivalent BCITL parameters (characteristic impedances for wave propagating in forward and reverse directions and associated complex propagation constant) are of interest. In the analysis, an arbitrary infinite RLSPTLS is firstly considered by shifting a reference position of unit cells along TLs. Then, a semi-infinite terminated RLSPTLS is subsequently investigated in term of associated load reflection coefficients. It is found that the equivalent BCITL characteristic impedances of the original and shifted unit cells, as well as the associated load reflection coefficients of both unit cells, are mathematically related by the bilinear transformation. However, the equivalent BCITL complex propagation constant remains unchanged. Numerical results are provided to show the validity of the proposed technique.
The Effect of pH and Temperature in the Propagation of Water Treeing in XLPE Insulated Underground Cable
Authors: Promvichai Narupon , Boonraksa Terapong , Marungsri Boonruang
Published: April 2020

Water treeing has become the major problem in XLPE insulated underground cable caused by the moisture penetration. Despite several studies performed, this problem is still not clear on how the moisture can fast damage the XLPE insulated cable under certain operating conditions. This work has studied the effect of pH and temperature of the ionic solutions to the degradation of the XLPE insulation. The study focused on the XLPE cable used in the 22 kV underground distribution systems in Thailand. The ionic solutions involved a 0.1 mole/L of NaCl and CuSO4 solutions for degrading the XLPE cable at ambient and 50 °C in 1000 hours and 4000 hours with the electric stress of 22 kV 50 Hz continuously.  CuSO4 and NaCl revealed a pH of 4.04 to 3.70 and 6.49 to 6.74 from ambient to 50 °C respectively. The higher strength of acidity resulted by CuSO4 at 50 °C was observed to be more effective in the propagation of water treeing across the XLPE insulation. The propagation of water treeing across the XLPE was strongly dependent on the pH level. Temperature above ambient was concluded to be detrimental for XLPE insulation when a CuSO4 ionic solution exists over a long period due to the significant propagation of water treeing.
Photovoltaic powered transormerless hybrid converter with active filter for harmonic and reactive power compensation
Authors: Arulmurugan R.
Published: April 2020

This paper proposed a Transformer less Hybrid SEries Active Filter (THSeAF) that upgrade the power quality in single-stage frameworks with steady renewable Photo Voltaic (PV) supply. It strengthens basic loads and carrying on as high-consonant impedance that does not below the critical loads, it cleans power system and guarantees the utilization of unity power factor. Here we manages energy management and power quality issues identified with electric transportation and concentrate on enhancing the electric vehicle load connected to grid. This depends on the Power Factor Correction (PFC) change with harmonic modulation technique that will give advancement of power factor in PFC operation. The control technique was intended to anticipation of current harmonic distortions with the nonlinear loads to control the flow of utility with no standard massive and expensive transformer. Power factor alongside AC side will likewise kept up to some esteem and furthermore dispense with the voltage distortions at the Common coupling point. Here we protecting sensitive loads from voltage twists, swells and sags as for control framework, without the arrangement transformer it is worthwhile for a modern usage. This paper was done with 2-kVA control showing the adequacy of the current topology.
Peran Narasumber dalam Keberlangsungan Program Talk Show Inspirasi Pagi di JAK TV Tahun 2016
Authors: Kurniawan Arifin Hendri , Ashfahani Shulhuly
Published: April 2020

Program Talk Show Inspirasi Pagi di JakTv adalah sebuah program yang memberikan informasi kesehatan mengenai pengobatan alternatif. Inspirasi Pagi merupakan pelopor program yang tayang untuk pertama kali di Indonesia. Keberlangsungan program tersebut tentu didukung dengan hadirnya narasumber yang ahli dibidangnya. Penelitian ini bertujuan untuk mengetahui peran narasumber dalam keberlangsungan program Talk Show dan strategi dalam menyampaikan pesan yang baik melalui media televisi. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi kasus. Alasannya, peneliti lebih leluasa dengan terjun langsung ke lapangan dan melakukan wawancara secara mendalam. Teknik dan pengumpulan data melalui hasil wawancara sebagai data premier, sedangkan, data sekunder didapat dari beberapa buku, web, artikel, dan foto. Hasil dari penelitian menunjukkan bahwa narasumber memiliki peranan penting dalam keberlangsungan program Talk Show. Kehadiran narasumber menentukan tayang atau tidak tayangnya program. Peran narasumber berfungsi sebagai pemberi informasi dan memberikan solusi dari permasalahan yang dihadapi oleh penelfon. Selain itu, strategi yang digunakan agar pesan mudah dipahami, dengan bahasa yang sederhana menggunakan kata-kata yang tepat, dan selalu meningkatkan kemampuan mengikuti perkembangan pada masa itu. Memberikan penjelasan menggunakan beberapa alat bantu seperti grafik, gambar, animasi, dan lain sebagainya.
Penggunaan Media Sosial Path Sebagai Media Representasi Dan Eksistensi Diri Tahun 2016
Authors: Mutia Hana , Sahidian Luki
Published: April 2020

Media sosial Path saat ini sangat populer dikalangan remaja. Berbagai fiturnya yang unik tidak hanya mampu menampilkan aktivitas pengguna, pada akhirnya mengerucut kepada gejala-gejala menunjukan kelas sosial dan gaya hidup untuk menunjukan strategi eksistensi diri. Tujuan penelitian ini untuk mengetahui bagaimana Path digunakan sebagai sarana merepresentasikan dan meningkatkan eksistensi diri. Penelitian yang digunakan yaitu dengan pendekatan deskriptif kualitatif. Metode yang dipakai adalah snowballing yaitu peneliti mencari informan lain dan menanyakan kepada informan sebelumnya, sedangkan teknik pengumpulan data melalui wawancara mendalam dengan enam informan yang merupakan pengguna aktif media sosial Path. Hasil penelitian penggunaan Path pada mahasiswa IISIP Jakarta memperlihatkan bahwa informan berusaha menampilkan diri sebaik mungkin, agar dapat mencapai tujuan yang diinginkan. Path juga mampu menjadi sarana merepresentasikan dan meningkatkan eksistensi diri. Peneliti menyimpulkan bahwa mendukung konsep privasi bagi pengguna baru diharapkan untuk memahami privacy policy dari Path untuk menghindari terjadinya kesalahpahaman di masa yang akan datang.
Strategi Program Magazine Program Khazanah Edisi Ramadhan 2019
Authors: Khairunisa Khairunisa , - Fatimah
Published: April 2020

Industri pertelevisian merupakan industri kreatif yang setiap harinya menghadirkan berbagai macam program acara unggulan. Setiap televisi terdapat divisi program yang memiliki berbagai strategi dalam memproduksikan suatu program, pada bulan ramadhan stasiun televisi bersaing dalam memproduksikan sebuah tayangan dalam bentuk konsep kajian-kajian islami. Salah satu program yang yang bertajuk islami ialah Khazanah Ramadhan, dalam bulan ramadhan kali ini Khazanah mengusungkan tematis Al-Quran dalam pembahasan pada bulan ramadhan 2019 dan strategi episode yang diusungkan pada hari pertama ramadhan ialah terapi cahaya. Metode penelitian ini menggunakan penelitian kualitatif dengan desain deskriptif dan menggunakan pendekatan observasi dimana dalam pendekatan ini data yang digunakan adalah data primer dari hasil pengamatan, wawanacra, dan dokumentasi. Dalam hasil penelitian ini tayangan khazanah ramadhan di hari pertama dengan episode terapi cahaya memiliki strategi dalam teknik produksinya ialah, pra produksi, produksi, dan pasca produksi, yang tentunya berbeda dengan tayangan sebelumnya. Dalam menggunakan strategi tersebut tim produksi khazanah dapat memberikan suatu tayangan yang bervariatif dalam segi pembahasan, segi liputan, dan hasil visual video. Dan selain itu khazanah ramadhan tetap harus memperhatikan promosi dalam media sosial agar audiens lebih tertarik lagi.
Strategi Pemasaran dalam Membangun Brand Image pada Sekolah Aluna Montessori Jakarta
Authors: Purnamasari Yuli , S Veronika
Published: April 2020

Sekolah Aluna merupakan salah satu sekolah berbasis inklusi yang dibutuhkan oleh anak berkebutuhan khusus. Namun saat ini Sekolah Aluna mengalami penurunan jumlah siswa/i yang disertai dengan menurunnya brand image di masyarakat, walaupun sekolah ini telah melaksanakan layanan dan promosi dengan baik. Tujuan dari penelitian ini untuk mengetahui strategi promosi yang digunakan Sekolah Aluna dalam membangun brand image. Peneliti menggunakan metode deskriptif kualitatif dengan pendekatan studi kasus. Jenis dan teknik pengumpulan data adalah data primer yang diperoleh dari wawancara serta data sekunder diperoleh dari data yang berbentuk buku, web, dan dokumentasi. Teknik analisa yang digunakan dalam penelitian ini merangkum data, menyajikan data dan menyimpulkan data tersebut. Hasil penelitian bahwa Sekolah Aluna perlu meningkatan pelayanan dan memperbaharui strategi promosi (brosur, spanduk, media sosial: facebook dan instagram) serta pendekatan hubungan masyarakat (public relations) supaya meningkatkan jumlah siswa serta meningkatkan brand image. Penurunan jumlah siswa dan brand image Sekolah Aluna dapat diperbaiki dengan cara memperbaharui promosi berupa brosur, spanduk, website serta melakukan pelatihan sumber daya manusia supaya lebih memahami layanan jasa yang ditawarkan dan informasi yang disampaikan lebih informatif.
A Single-chord Stellar Occultation by the Extreme Trans-Neptunian Object (541132) Leleākūhonua
Authors: Buie Marc W. , Leiva Rodrigo , Keller John M. , Desmars Josselin , Sicardy Bruno , Kavelaars JJ , Bridges Terry , Weryk Robert , Herald Dave , Haley Sean L. , Strauss Ryder , Wilde Elizabeth , Baker Robert , Conway Ken , Dean Bryan , Dunham Mackenzie , Estes James J , Fiechter Naemi , Givot Rima , Glibbery Cameron , Gowe Bruce , Hayman Jennifer N. , Ireland Olivia L , Kehrli Matthew , Moore Erik M. , MacDonald Matthew A. , McCrystal Delsie , Mendoza Paola , Palmquist Bruce , Rennau Sherry , Schar Ramsey , Swanson Diana J. , Terris Emma D. , Werts Holly , Wise J. A.
Published: April 2020

A stellar occultation by the extreme large-perihelion trans-Neptunian object (541132) Leleākūhonua (also known by the provisional designation of 2015 TG387) was predicted by the Lucky Star project and observed with the Research and Education Collaborative Occultation Network on 2018 October 20 UT. A single detection and a nearby nondetection provide constraints for the size and albedo. When a circular profile is assumed, the radius is

km, corresponding to a geometric albedo

, for an adopted absolute magnitude of H

V
 = 5.6, typical of other objects in dynamically similar orbits. The occultation also provides a high-precision astrometric constraint.
Lithium in T Coronae Borealis
Authors: Woodward C. E. , Pavlenko Ya. V. , Evans A. , Wagner R. M. , IIyin I. , Strassmeier K. G. , Starrfield S. , Munari U.
Published: April 2020

T Coronae Borealis is a recurrent, symbiotic nova system currently in quiescence between its periodic ≈80 yr cycle of eruptions. Observations during inter-outburst epochs provide an opportunity to study properties of the accretion disk and the M red giant. Here we present new irradiated (blackbody veiling) models, incorporating modern molecular opacities and line lists, of spectra derived from high-resolution (22,000 ≲ R ≲ 120,000) optical echelle observations obtained at two epochs, one prior to and one post the 2015 rebrightening event at similar spectroscopic system phase. We find a lithium abundance in the secondary at both epochs to be comparable. The non-irradiated (classical) model atmospheres yield a lithium abundance, A(Li) = 1.3 ± 0.1. The irradiated model (veiled) atmospheres, which are likely a better representation of the system in which the white dwarf and accretion disk illuminate the red giant, give A(Li) = 2.4 ± 0.1.
Flux Tubes Forming Instability Near the Base of the Rotating Convection Zone: A Possible Explanation for the Low Latitudes of Sunspots
Authors: Kitchatinov L. L.
Published: April 2020

The rise of flux tubes with intense magnetic fields from the base of the convection zone to the solar surface has been substantiated as a probable mechanism for sunspot formation. The origin of flux tubes of a sufficient strength (∼105 G) is, however, uncertain. This paper considers the instability of a large-scale toroidal magnetic field caused by the magnetic suppression of convective heat transport as a candidate for the flux-tube formation mechanism. The consideration employs the analytical dependence of eddy diffusion on the magnetic field supplied by mean-field magnetohydrodynamics. The instability tends to produce regions of increased field strength with spatial scales of the order of 100 Mm at the base of the convection zone. Characteristic growth times of the instability are short compared to the 11 yr cycle. The threshold field strength for the onset of the instability increases from several hundred Gauss in the vicinity of the equator to some kilo-Gauss at middle latitudes. Growth rates of unstable disturbances decrease with latitude. These latitudinal trends can be the reason for the observed confinement of sunspot activity to a near-equatorial belt.
Real-time, Value-driven Data Augmentation in the Era of LSST
Authors: Sravan Niharika , Milisavljevic Dan , Reynolds Jack M. , Lentner Geoffrey , Linvill Mark
Published: April 2020

The deluge of data from time-domain surveys is rendering traditional human-guided data collection and inference techniques impractical. We propose a novel approach for conducting data collection for science inference in the era of massive large-scale surveys that uses value-based metrics to autonomously strategize and coordinate follow-up in real time. We demonstrate the underlying principles in the Recommender Engine For Intelligent Transient Tracking (REFITT) that ingests live alerts from surveys and value-added inputs from data brokers to predict the future behavior of transients and design optimal data augmentation strategies given a set of scientific objectives. The prototype presented in this paper is tested to work given simulated Rubin Observatory Legacy Survey of Space and Time (LSST) core-collapse supernova (CC SN) light curves from the Photometric LSST Astronomical Time-series Classification Challenge data set. CC SNe were selected for the initial development phase as they are known to be difficult to classify, with the expectation that any learning techniques for them should be at least as effective for other transients. We demonstrate the behavior of REFITT on a random LSST night given ∼32,000 live CC SNe of interest. The system makes good predictions for the photometric behavior of the events and uses them to plan follow-up using a simple data-driven metric. We argue that machine-directed follow-up maximizes the scientific potential of surveys and follow-up resources by reducing downtime and bias in data collection.
Possible Production of Solar Spicules by Microfilament Eruptions
Authors: Sterling Alphonse C. , Moore Ronald L. , Samanta Tanmoy , Yurchyshyn Vasyl
Published: April 2020

We examine Big Bear Solar Observatory (BBSO) Goode Solar Telescope (GST) high spatial resolution (0.″06), high-cadence (3.45 s), Hα-0.8 Å images of central-disk solar spicules, using data of Samanta et al. We compare with coronal-jet chromospheric-component observations of Sterling et al. Morphologically, bursts of spicules, referred to as “enhanced spicular activities” by Samanta et al., appear as scaled-down versions of the jet’s chromospheric component. Both the jet and the enhanced spicular activities appear as chromospheric-material strands, undergoing twisting-type motions of ∼20–50 km s−1 in the jet and ∼20–30 km s−1 in the enhanced spicular activities. Presumably, the jet resulted from a minifilament-carrying magnetic eruption. For two enhanced spicular activities that we examine in detail, we find tentative candidates for corresponding erupting microfilaments, but not the expected corresponding base brightenings. Nonetheless, the enhanced-spicular-activities’ interacting mixed-polarity base fields, frequent-apparent-twisting motions, and morphological similarities to the coronal jet’s chromospheric-temperature component, suggest that erupting microfilaments might drive the enhanced spicular activities but be hard to detect, perhaps due to Hα opacity. Degrading the BBSO/GST-image resolution with a 1.″0-FWHM smoothing function yields enhanced spicular activities resembling the “classical spicules” described by, e.g., Beckers. Thus, a microfilament eruption might be the fundamental driver of many spicules, just as a minifilament eruption is the fundamental driver of many coronal jets. Similarly, a 0.″5-FWHM smoothing renders some enhanced spicular activities to resemble previously reported “twinned” spicules, while the full-resolution features might account for spicules sometimes appearing as 2D-sheet-like structures.
Greenness, mortality and mental health prescription rates in urban Scotland - a population level, observational study
Authors: Hyam Roger
Published: April 2020

BACKGROUND: Recent studies have shown an association between vegetation around dwellings and mortality, with mental health as a possible mediator.

OBJECTIVES: Examine whether there is an association between greenness and mortality or greenness and the proportion of the population being prescribed drugs for anxiety, depression or psychosis in urban areas of Scotland.

METHODS: Two greenness maps were prepared based on Landsat 8 Normalised Difference Vegetation Index data from 2013 to 2016, one for summer and one for winter. Greenness was sampled from these maps around each of 91,357 urban postcodes. The greenness data was averaged by 4,883 urban Data Zones covering 71% of the Scottish population and compared with mortality and prescription rate data from the Scottish Index of Multiple Deprivation.

RESULTS: The areas least green in the summer were found to have higher mortality rates but no association was found between mortality and winter-greenness. The largest relative differences of mortality were around 9%. High levels of summer-greenness were associated with an increase in mental health prescription rates but areas with the highest differences between summer and winter-greenness had lower prescription rates than other areas. The largest relative difference in prescription rate was 17%. All models controlled for overall deprivation. It is hypothesised that the year round greenness of mown grass is associated with increased mental health prescriptions and obscures the benefits of other kinds of vegetation on both mortality and mental health.

DISCUSSION: There is an association between greenness and mortality and greenness and mental health. The association is both statistically significant and large enough to be of importance for policy making. Higher levels of non mown grass vegetation may be preferable for human wellbeing but more detailed understanding of the diversity of plant life in urban areas and how people related to it is required to make more specific recommendations.
Esthétiques saint-cyriennes
Authors: Thiéblemont André
Published: April 2020

Depuis plus de deux siècles, la pensée symbolique saint-cyrienne se nourrit des créations d’élèves officiers producteurs de traditions. Contournant des interdits et jouant des décisions rationnelles du commandement, ils ne cessent de fabriquer de quoi créer la mobilisation et la cohésion des promotions de saint-cyriens. Jusqu’à produire du merveilleux.
Une esthétique de la puissance : vaisseaux et galères du roi
Authors: Vigié Marc
Published: April 2020

Durant le règne de Louis XIV, les vaisseaux et les galères participent autant sinon davantage à la fabrication de l’image du roi qu’à la réalisation de ses ambitions guerrières. La construction navale se caractérise alors par une exceptionnelle intrication de l’art, du pouvoir et de la puissance militaire. Les unités de la flotte, notamment les vaisseaux de premier rang, reçoivent une décoration sculptée et peinte aussi profuse qu’exubérante. Toutefois, l’esthétique décorative de cette imagerie politique ignore trop les contraintes techniques de l’arme navale. La marine du roi proclame la suprématie du souverain sans pouvoir la démontrer face à l’ennemi. Dès la fin du xvii e  siècle, la crise du fonctionnement « esthétique » et politique du vaisseau de guerre français est patente. Elle épargne les galères, dont la véritable mission est de rappeler en soumettant par la force les condamnés de droit commun et les protestants que le roi est source de justice et garant de la « vraie foi ».
Réflexion sur le style
Authors: Malvaux Gilles
Published: April 2020

Comment rendre belle une victoire ? Comment en exprimer la grandeur et la gloire ? Le style classique, au sens de celui de Corneille ou de Racine, a des qualités propres que l’on retrouve en particulier dans les comptes rendus de bataille, du Grand Siècle à Churchill. Ce style, qui remonte à l’illustre Veni, Vidi, Vici de Jules César, mérite d’être comparé à celui de notre époque, davantage marqué du sceau de l’efficacité au détriment du souci du beau.
Is beauty universal?
Authors: Marchal Marion
Published: April 2020

Nous avons renoncé à la croyance en un critère objectif du beau ; nous savons que nous sommes maintenant installés dans le relativisme esthétique. Comment en sommes-nous arrivés à ne plus pouvoir justifier nos appréciations par un critère unique ? Faut-il regretter cette nouvelle situation ? Ne faut-il pas plutôt reconnaître qu’en elle se libèrent non seulement la diversité des goûts mais surtout celle des productions artistiques ?
Implementation of an Evidence-Based Oral Care Protocol to Improve the Delivery of Mouth Care in Nursing Home Residents
Authors: Red Ayana , O'Neal Pamela V.
Published: April 2020

The current project assessed the oral health of residents in a long-term care (LTC) facility, implemented a new evidence-based oral care protocol, and trained nursing staff about oral hygiene for older adults. A pre-/post-intervention design was used to measure knowledge, skills, and attitudes among 29 staff members. The oral health outcomes of 10 LTC residents without dysphagia were assessed after 14 days of protocol use. Knowledge improved from a mean total pre-test score of 88.8 to a mean total post-test score of 97.7 (
Z
= −2.308,
p
= 0.021). The Oral Health Assessment Tool measured oral health outcomes at three time points in 10 older adults, and statistically significant improvement in oral health was identified (
p
= 0.001). Nursing home staff play an important role in improving oral hygiene of older adults in LTC facilities by routinely using an easy to follow oral health protocol twice daily. [
Journal of Gerontological Nursing, 46
(5), 33–39.]
Orthopedic Manifestations of Lead Toxicity
Authors: Meyers Amy L. , Woodbury Michael P. , Nelson Ryan A.
Published: April 2020

Given the recent news regarding the water supply in Flint, Michigan, lead toxicity has become an increasingly important topic in health care. Lead toxicity can have a widespread effect on the human body. Because lead has a significant effect on mineralized tissue such as bone, the purpose of this review was to identify and analyze the orthopedic manifestations of lead poisoning. The effects of lead at the cellular level, on the hematopoietic system, in osteoporosis, and in pediatric patients are discussed. Possible treatment options and recommendations for further monitoring are presented. [
Orthopedics
. 2020;43(4):e202–e207.]
A Test of Cohen's Developmental Model for Professional Socialization With Baccalaureate Nursing Students
Authors: McCain Nancy L
Published: April 2020

ABSTRACT

The study was designed to test the Cohen (1981 ) model of professional socialization, which proposes that nursing students progress through four developmental stages of unilateral dependence, negative/independence, dependence/ mutuality, and interdependence as they advance through an educational program. The Professional Socialization Staging Scale (PS3), consisting of four subscale scores representative of the stages, was administered to 422 students enrolled in eight clinical nursing courses. Instrument revision was accomplished using a cross-validation design, and the study hypotheses were tested with 214 subjects in the cross-validation subsample. Significant findings (p<.05) were that beginning students were more dependent than were graduating students, that older students were less dependent and more highly interdependent than were younger students, and that students with concurrent work experience in nursing-related fields were more highly interdependent than were students without concurrent work experience. With all groups of students evidencing the

interdependence stage, no relationship was found between the sequential developmental stages and level of enrollment. Thus results of the study failed to support the Cohen model (McCain, 1984).
Beginning Students' Definitions of Nursing: An Inductive Framework of Professional Identity
Authors: Cook Tom H , Gilmer Mary Jo , Bess Carolyn J
Published: April 2020

ABSTRACT

Nursing identity is a developmental process that evolves throughout professional nurses' careers. Educational systems that prepare nurses include experiences that are important in the early development of nursing identity. Therefore, faculty in nursing programs are interested in understanding how their students perceive and define professional identity.

For this study, a qualitative design was selected to explore students' early beliefs and concepts about nursing. Data were collected on the students' first day of the nursing program using the open-ended question, "What is your definition of nursing?" Using a qualitative descriptive approach, thematic analyses of the data are provided. Results revealed an inductive framework of professional nursing identity based on students* descriptions and definitions of nursing.

These results demonstrate that nursing students come to an educational program with more than a rudimentary conception of professional identity. Use of these data may lead to opportunities to improve nursing students' educational experiences and foster tibe development of professional identity. Faculty can use knowledge of students' definitions of nursing to enrich student learning.
Farmacevtski terminološki slovar [prva izdaja]
Authors: Humar Marjeta , Šmid - Korbar Jelka , Obreza Aleš
Published: April 2020

Farmacevtski terminološki slovar vsebuje okoli 5500 strokovnih izrazov, ki se uporabljajo na različnih področjih farmacije (farmacevtska tehnologija, farmacevtska informatika, farmacevtska biotehnologija, farmacevtska kemija, farmacevtska zakonodaja, farmakoepidemiologija, farmakognozija, toksikologija, lekarniška farmacija, klinična farmacija, socialna farmacija ipd.). Slovar ne vsebuje zaščitenih imen zdravil. Vsak strokovni izraz je prikazan v samostojnem slovarskem članku. Slovar je normativen, razlagalen in prevoden. Vsebuje izrazje, ki mu stroka daje prednost, in z jezikovnega in/ali strokovnega stališča manj ustrezno izrazje, ki je prikazano v obliki kazalk k ustreznejšim poimenovanjem. Prednostno izrazje ima pomenski opis, navadno tudi angleški in latinski ustreznik, če se uporabljata. Slovar ima tri dele: slovensko-angleško-latinski, angleško-slovenski in latinsko-slovenski del. Pri izdelavi farmacevtskega terminološkega slovarja so sodelovali farmacevti, terminografi in jezikoslovci (slovenisti, latinisti in anglisti).
Druga, dopolnjena in pregledana izdaja je izšla leta 2018.
Mechanical Properties of Porous Ti-Nb-Zr Alloy Fabricated by Using a Combined Process of Decomposite - Sintering Method in Vacuum Atmosphere
Authors: Thanh Ho Ky , Toan Nguyen Van , Dung Tran Van
Published: April 2020

Present research work reports a study on new mechanical phenomenon of the porous Ti-3.5Nb-3.5Zr materials that address for implant materials in dental. The mechanical testing samples were prepared by two-step sintering method with dimension of 10 mm and height of 10mm. The compressive tests were carried on MTS instrument to determine the strain-stress curves. Then mechanical behavior of the materials was analyzed from those curves. For samples after sintering without space holder and binder addition, there were three deformation regions on the curves that were linear elasticity, plateau and densification. The mechanical behavior of materials was modeled, and the main parameters in the model were identified from the strain - stress curve. For sample after sintering with space holder and binder, materials were brittle. The mechanical properties of those samples were also determined. Microstructures of materials before mechanical testing were observed by SEM, and the surface was also analyzed by XRD.
Elastic Half Space under Axisymmetric Surface Loading and Influence of Couple Stresses
Authors: Lawongkerd Jintara , Le Toan Minh , Keawsawasvong Suraparb , Limkatanyu Suchart , Rungamornrat Jaroon
Published: April 2020

This paper presents the complete elastic field of a half space under axisymmetric surface loads by taking the influence of material microstructures into account. A well-known couple stress theory is adopted to handle such small scale effect and the resulting governing equations are solved by the method of Hankel integral transform. A selected numerical quadrature is then applied to efficiently evaluate all involved integrals. A set of results is also reported to not only confirm the validity of established solutions but also demonstrate the capability of the selected mathematical model to simulate the size-dependent characteristic of the predicted response when the external and internal length scales are comparable.
The Effect of Desert Environment on the Cost of Construction Projects (Materials Transportation)
Authors: Erzaij Kadhim Raheim , Ali Rouwaida Hussein
Published: April 2020

Construction project costs are often related to the availability of construction materials and proximity to the work site. So this paper studied the effect of transportation of materials on the cost of construction projects in the desert and identified the increment percentages of materials cost in comparison with main cities and re-accounted the BOQ items prices in the desert cities. The results showed that the cost of some works may be doubled in the desert areas due to lack of construction materials and high transport costs.
Materials Science Introduces Disaster Prevention and Mitigation Education Experiment
Authors: Chou Chung Chyi , Wang Yu Ting , Hu Jyh Jye , Liao Shen , Hsu Cheng
Published: April 2020

This study used 700 children under the age of 11 as the research target for materials science introduces disaster prevention and mitigation education. The purpose of this study is to training and popularize the scientific knowledge literacy of disaster prevention, and to design disaster prevention and mitigation education through the diversity of material science. This study will carry out the learning outcome experiment of scientific concept and spontaneous concept into the disaster prevention science popularization education. Hope to study through teacher training courses, life science practice activities and digital learning application experiments. The study integrates material science disaster prevention course and campus science education, and 15 material science experiments were planned to be applied to the evaluation of the learning outcome of disaster prevention and mitigation experiments. Before the experiment, teachers were guided by disaster prevention science education, and after 12-year-old children relayed the principles of science, they assisted 6 to 11-year-old students to operate materials science experiments and analyze the learning outcome. Through simple teaching design and multi-level pre-teaching can effective promotion 36.5% of student's interest in material science used in the field of disaster prevention and mitigation, and by 73% of student aged 9 to 11, they can be more effectively improved the strategy and purpose of disaster prevention and mitigation education by dictation of their disaster prevention and mitigation education related to family, peers and living environment.
Automation of Concrete Heat Treatment in Thermoactive Formwork in Monolithic Housing Construction
Authors: Tikhonov Anatoly Fedorovich
Published: April 2020

The block diagram and algorithm for concrete treating in thermoactive formwork is presented. Article presents parameters of the concrete mix, to enter in a command block before automated heating of the concrete mix in thermoactive formwork in accordance with the schedule of changes in concrete temperature in the process of obtaining desired strength. Article formulates mathematical model of the control object for thermal treatment of concrete with consideration of the specifics and general patterns, processes and technological requirements. Article determined control actions, transfer functions of the object and phase graph of the control system.