bluuebunny/crossref_metadata_2025 huggingface dataset:
Whose values, who's valued?
Authors: Hampton Rosalind , Hartman Michelle
Published: January 2020

The first week of February 2014 saw the tragic deaths of two young people in Québec: Naïma Rharouity, a Muslim woman and mother of two who died following an accident in a metro station and Alain Magloire, a Black man and father of two killed by the Montreal police. Muslim women and Black men are racialized within Québec society in significantly different ways from one another, in life as in death. This article analyzes the reactions to and representations of these two deaths in the specific context of Québec and how they fit into heavily racialized scripts. A Muslim woman is strangled to death when an escalator catches her clothing; her hijab is blamed, making her a victim of her culture and dead because of the scarf she wore on her head. A Black man holding a hammer outside a metro station is deemed as so dangerous, violent, and threatening by armed police officers that he is shot dead. Both were victimized but also blamed for their untimely deaths. The challenges these stories pose disrupt assumptions and demand alternative narratives about racialized bodies. This article reveals the different processes of racialization of Muslim women and Black men, and argues that exposing the internal logic of this comparison promotes critical understanding of the ways in which racialized scripts shape and influence our lives. This further highlights ways to work towards building stronger solidarities to resist and challenge narratives that demand tragic endings for racialized bodies.
THE EFFECT OF STUDENT REFLECTION QUALITY ON A TECHNICAL WRITING ASSIGNMENT RESUBMISSION
Authors: Yekani Rana , Bluteau Sarah , Omelon Sidney
Published: January 2020

The role of reflection and self-regulation in academic performance was tested using the "Exam Wrapper" strategy with a writing assignment for a technical elective course. The technical writing assignment involved the creation of a detailed outline for a technical report. This outline was submitted for grading and feedback before a subsequent extended technical report assignment. The outline was graded by the course teaching assistant, following a detailed grading rubric.

After receiving the grade and feedback, students could resubmit a revised outline for re-grading, and include a reflection on the circumstances of their performance. Using the grading rubric, the resubmission was graded by the course instructor. A second graduate student evaluated the student reflection quality, and the resubmission quality.

The effect of the self-reflection quality on re-submitted assignment improvement was assessed. The average grade improvement for students who resubmitted a reflection was +15.1 % (n=16), and for students who resubmitted without a reflection was +6.3 % (n=3). The difference between the average resubmitted and first submission grades positively correlated with reflection quality. These results suggest that a reflection exercise associated with a resubmission has potential to improve student technical writing quality.
USING MICROSOFT TEAMS TO SUPPORT COLLABORATIVE KNOWLEDGE BUILDING IN THE CONTEXT OF SUSTAINABILITY ASSESSMENT
Authors: Buchal Ralph , Songsore Emmanuel
Published: January 2020

The current study investigates students’ use of Microsoft Teams as a collaborative knowledge building platform for a group sustainability assessment project. Ashby’s sustainability assessment method was used to provide scaffolding. Surveys (n=16) were administered to assess the nature of student collaboration, including students’ experiences using collaboration tools in the past, the activities students engaged in while working on the group project in MS Teams, self-assessment of collaborative abilities, comfort with giving, receiving and sharing comments and feedback, assessment of the effectiveness of Ashby’s sustainability assessment method in developing these abilities, and their overall assessment of MS Teams as a collaborative knowledge building tool. Students rated their collaborative abilities to be good to excellent and felt that the project was effective in developing those abilities. They are comfortable providing and receiving feedback and sharing their contributions openly. They found MS Teams to be extremely useful, and better than alternative platforms for key tasks including messaging, file sharing and collaborative authoring.
Diversidad espacial del ensamblaje de escarabajos coprófagos (Coleoptera: Scarabaeinae) en cinco ecoregiones de Sucre, costa Caribe Colombiana
Authors: Amell-Caez Yina , Decastro-Arrazola Indradatta , García Héctor , Monroy-G José D. , Noriega Jorge Ari
Published: January 2020

La biodiversidad cambia en el espacio-tiempo generando gradientes complejos. Estos gradientes afectan la estructura de las comunidades creando dos posibles patrones de recambio espacial, reemplazo o anidamiento. Existen pocos estudios que busquen analizar los cambios de la diversidad a lo largo de gradientes ambientales en la región Caribe de Colombia. Buscando entender estos cambios, se realizó un muestreo en cinco ecorregiones del Caribe colombiano (Golfo de Morrosquillo, Montes de María, Sabanas, San Jorge y La Mojana) usando a los escarabajos coprófagos como un grupo bioindicador. En cada región se estableció un transecto lineal con 20 trampas de caída cebadas con excremento. Se evaluaron las diferencias en la abundancia, riqueza, Shannon-índice, equidad y grupos funcionales entre ecorregiones y condiciones ambientales. Un total de 923 individuos pertenecientes a 27 especies fue recolectado. La tribu Deltochilini y el género Canthon fueron los más diversos. La especie más abundante fue Silvicanthon aequinoctialis. Se encontraron diferencias significativas en los parámetros medidos entre las ecorregiones. La diversidad Beta presenta un claro patrón espacial demostrando un alto recambio y un bajo anidamiento. Los Montes de María presentaron la mayor diversidad, asociada con la conservación de fragmentos de bosque. Es fundamental generar estrategias de conservación y crear un nuevo Parque Nacional Natural para los Montes de María, previniendo el impacto negativo causado por la expansión de la frontera agrícola y ganadera. Finalmente, este estudio representa un primer esfuerzo para entender los patrones espaciales de los escarabajos coprófagos en el Caribe colombiano, relacionando los gradientes ambientales con la dinámica espacial de la diversidad.
Mites associated with blackberry (Rubus sp. cv. Tupy) in two areas of Michoacan, México
Authors: Ayala-Ortega José de Jesús , Martínez-Castillo Ana Mabel , Pineda-Guillermo Samuel , Figueroa-De La Rosa José Isaac , Acuña-Soto Jesús , Ramos-Lima Mayra , Vargas-Sandoval Margarita
Published: January 2020

Damage caused by phytophagous mites is one of the main phytosanitary problems on blackberry crop. The mite species identification is a very significant activity to implement a program of integrated pest management. The aim of this study was to identify the species of phytophagous mites, predators, and other mites associated with blackberry crop in two locations of Michoacan, Mexico. The research was performed in two blackberry orchards located at Ziracuaretiro and Tacambaro municipalities, which had different type of management: conventional and non-conventional, respectively. In each orchard, 18 samples were collected at 15 d-intervals during an annual cycle, from June 2015 to May 2016. The collected mites were mounted in permanent slide for their taxonomic determination with specific keys with specific keys. Seventeen mite species belonging to ten families were identified, which six were phytophagous species, six were predatory, and five had varied habits. Six of the 17 taxa identified are new records of mites associated with blackberry crop. Most of the mites were collected in the conventional crop (65.4 %), while the abundance of predator mites was highest in the no-conventional crop.
A relative permeability model for CBM reservoir
Authors: Peng Zeyang , Li Xiangfang , Sun Zheng
Published: January 2020

Relative permeability is an effective tool for studying multiphase fluid flow in porous media. For conventional reservoirs, a relatively reliable relative permeability curve can be obtained by laboratory core test. But because of the coalbed gas reservoir permeability is low, the stable steady state method will take a very long time, and the operation is relatively complex. For the non-steady state method, the coalbed gas reservoirs are rich in micro nano pore, which causes the strong heterogeneity and gas is easy to break in through the cracks, it makes non-steady displacement experiment very difficult. Also, the experimental results are greatly affected by human factors and computational methods. Therefore, based on the ideal pore structure and the consideration of different displacement mechanisms, the analytical method not only helps to understand the mechanism of gas water two-phase flow, but also is a convenient and practical method. Coalbed methane reservoirs are rich of nano pores, and the percolation process is more complicated due to the water. Consider of the nano pore of the coal, the capillary force’s effect will be more important. The different pressure will cause different flow channel, which will change the permeability. In this paper, the relative permeability model of coalbed methane reservoir has been built which considers the gas diffusion and slippage effect, pore throat structure parameter, water saturation distribution, and gas water interface pressure drop. It can describe the difference flow channel between different pressure.
Control of the Trajectory Movement of a Quadrocopter during Transportation of Cargo on a Suspension: Experiment
Authors: Dimova A. S. , Kotov K. Yu. , Maltsev A. S. , Semenyuk E. D. , Sobolev M. A.
Published: January 2020

The problem of controlling the movement of a quadrocopter during transportation of cargo on a suspension is considered. This paper presents the results of an experimental verification of a previously developed nonlinear regulator for suppressing suspension vibrations relative to the vertical. The description of the created experimental stand for flight control of a small-sized quadrocopter in the room is given.
Hasnulina K. A. Nomadic and Settled Empires on the Silk Road: Interaction Patterns
Authors: Shulga Danil P. , Hasnulina Karina A.
Published: January 2020

The article provides a comparison between mutual relations of the Han empire and the Xiongnu during the early stages of the Silk Road, and the Byzantium connections with the Mongol Empire during the last surge of activity on this trading artery. In order to understand how sedentary societies’ perception patterns of nomadic cattle herders changed over time (at the empire level), the authors have intentionally considered such a wide chronological timeframe. The Han dynasty ascended the throne almost at the same time as the beginning of Xiongnu rule, and despite the fact that they became significantly more powerful in economic terms and more densely populated, this did not extend to their military. The advantages however allowed China to gain the upper hand over a long time period, “appeasing” the Xiongnu (specific techniques are explained in the article). The Eastern Roman Empire at the time of the collision with the Mongols had already existed for a little less than a thousand years and had experienced a series of both victories and downfalls. Constantinople authorities could not compare with the power of Chingissids in terms of the number of troops, the size of territory and number of taxable subjects. However, unlike a number of Asian states, Byzantium survived not only the invasion of the Mongols, but also their presence in the Middle East in general. This paper gives an in-depth look at the mechanisms of how this became possible and the contributing role that was played by trans-Asian trade.
Gates of Siberian Ostrogs Based on Written and Archaeological Sources
Authors: Gorokhov Sergej V. , Borodovsky Andrei P.
Published: January 2020

Purpose. We summarized all written, graphic, archaeological and ethnographic data available on the structure of gates in Siberian ostrogs (fortresses) outside towers, “taras” and “gorodni”, their decoration, location within the ostrog walls and interaction with other structural elements of fortifications.
Results. The gates of Siberian ostrogs were most vulnerable defensive elements in the fortress. Therefore, the driveway openings of the ostrogs were connected with other fortifications of the system in order to limit the enemy's maneuver in the vicinity of the gates. Such fortifications usually include ditches, ramparts, chevaux de frise, additional “tyn” walls and wooden structures. Our study of the topical material revealed a limited source base. Archaeological excavations allowed researchers to describe gates of only two sites – Umrevinsky Ostrog and Sosnovsky Ostrog. The informative value of such archaeological sources for reconstructing the gates is considerable. The gates of the ostrogs failed to survive to this day. Some ethnographic works available contain a summarized description of the driveway openings in the fortress structures of the town of Tara and some other towns of the Angara region.
Conclusion. Based on the data available, we reconstruct a summarized image of driveway openings of the Siberian ostrogs. Their width and height were established. The number of directions for leaving and entering the fortress were also determined. The parameters, structure and installation method for the rod post, rotating post, and leaves were identified. Three options for reconstructing a wall over the gates are offered. Two types of chapels over the gates are reconstructed. Individual features of any particular gates can be reconstructed only based on integrated consideration of a set of written, graphic, and archeological sources.
Ethnocultural Feautres of the Modern Khakass Family
Authors: Troshkina Irina N.
Published: January 2020

Purpose. For identification of ethnocultural features of the modern Khakass family in the Republic of Khakassia we used empirical material, generalized on the basis of interviews and questionnaires. The object of the study is the culture of the ethnic group, the subject of the study is the ethnocultural features of the modern family. The article discusses the main components of the family from the perspective of material and spiritual foundations of the ethnic community. The author pays special attention to the objects belonging to the Khakass family material culture and describes elements that refer to modern processes and activities. The methodological basis of the study includes principles and categories of dialectics, methods of analysis and synthesis, systemic and structural analysis of social systems. The empirical base is the materials obtained by using included observation, in the process of expert interviews and analyzing questionnaires.
Results. As a result of our research we conclude that the dynamics of ethnocultural foundation of the Khakass family in the early 21st century, which includes elements of labor culture and daily life, develops intensively in the material culture. The spiritual basis of the ethnic group (its religious platform, traditions and customs, as well as the language) is being somewhat modernized due to new realia but is quite stable and experiences little transformation. Revitalization of cultural symbols is accompanied by decrease in the number of the Khakass language speakers but is also characterized by a desire for establishing a monolithic Khakass ethnic community on the basis of the Sagay-Kachinsky component. The author’s main contribution to the study of the topic is the study of modern cultural foundations of the family in the Khakass ethnic group. The novelty of the study refers to the regional component of the ethnocultural aspect in considering the Khakass family.
On Correlation of an Archaeological Site and a Historical Settlement: Historical Approach (Through the Example of Ust-Voikarskoe Site and Voikarsky Gorodok)
Authors: Garkusha Yuriy N.
Published: January 2020

Purpose. Ust-Voikarskoe site is situated in the Lower Ob Region (Shuryshkarsky district of the Yamal-Nenets Autonomous District, Russia). It represents autochthonous late Middle-Age culture of the north of Western Siberia. The article discusses verification of the sources used for analysis that would confirm possible identity of the archeological site Ust-Voikarskoe and a historical settlement of the Middle-Age, Voikarsky Gorodok.
Results. Firstly, researches noted that the archaeological site had been known in the written sources as Ostyak (Khanty) Voikarsky Gorodok since at least the beginning of the 17th century, including Russian fiscal documents. Siberian local historians of the 2nd half of the 19th century mentioned some “ancient hills” located near the village of Voikarskie Yurty. At the same time, there is a group of other sources which have not been analyzed yet. A complex review of all the sources that we conducted tells us an intricate story with more questions than answers. Where exactly were “ancient hills” near the village of Voikarskie Yurty located? What did they look like? We discovered that the Khanty had a few settlements named Voikarskie Yurty. So, the question remains, which Voikarskie Yurty was located near the settlement identified by historians as Voikarsky Gorodok?
Conclusion. Known historical materials cannot indisputably prove the identity of the archeological Ust-Voikarskoe site and the historical Middle-Age settlement of Voikarsky Gorodok. They also cannot be the ground to say that these places are connected with the territory that was explored by archaeologists at the beginning of the 21st century.
The fairy-tale repertoire of A. S. Kozhemyakina collected by Omsk local historian I. S. Korovkin (based on materials of the folklore archive of the Omsk State Pedagogical University)
Authors: Kozlova N. K.
Published: January 2020

The article is devoted to the analysis of fairy-tale material from the folklore collection of the Omsk local historian I. S. Korovkin whose wide collection of folklore materials is stored in the folklore archive of the Omsk State Pedagogical University. The article will focus on the texts of fairy tales written by a collector from a Siberian performer Anastasia Stepanovna Kozhemyakina, manuscripts of these recordings are stored in the folklore archive of the Pedagogical Uni- versity. Of the 40 fairy tales recorded by Korovkin from the performer, the author of the article was able to identify (from archival records and published materials) 36 texts. The repertoire represents the Russian old-time tradition of Siberia. Tales by A. S. Kozhemyakina reflect the process of the existence of a folklore text in the oral tradition (which is typical for the late XIX - early XX centuries). The bearers of the tradition have a certain “baggage” or a set of elements specific for a particular genre (poetic, content) in order to “form” a text from these elements when reproducing it. "Forming" a fairy tale, Kozhemyakina takes out any element, image, plot episode, etc. from her fairy-tale "baggage". It includes not only fairy-tale, but also epic episodes, formulas, elements, as well as images, plot conflicts from adventure stories or novels. Fairy-tale contaminations are also peculiar. They are as well due to the specifics of the oral existence of fairy tales. A special publication of this fairy-tale heritage with scientific commentary on each text is needed.
SAMPL6 Host-Guest Binding Affinities and Binding Poses from Spherical-Coordinates-Biased Simulations
Authors: Sun Zhaoxi , He Qiaole , Li Xiao , Zhu Zhengdan
Published: January 2020

Host-guest binding is a challenging problem in computer simulation. The prediction of binding affinities between hosts and guests is an important part of the statistical assessment of the modeling of proteins and ligands (SAMPL) challenges. In this work, the volume-based variant of well-tempered metadynamics is employed to calculate the binding affinities of the host-guest systems in the SAMPL6 challenge. By biasing the spherical coordinates describing the relative position of the host and the guest, the initial-configuration-induced bias vanishes and all possible binding poses are explored. The agreement between the predictions and the experimental results and the observation of new binding poses indicate that the volume-based technique serves as a nice candidate for the calculation of binding free energies and the search of the binding poses.
Continuous Flow Synthesis of ZIF-8 Biocomposites with Tuneable Particle Size
Authors: Carraro Francesco , D. Williams Jason , Linares-Moreau Mercedes , parise chiara , Liang Weibin , Amenitsch Heinz , Doonan Christian , Kappe C. Oliver , falcaro paolo
Published: January 2020

Zeolitic Imidazolate Framework (ZIF) biocomposites show the capacity to protect and deliver bio-therapeutics. To date, the progress in this research area is based on laboratory batch methods. To further explore the potential of ZIF-biocomposites for application to biomedicine and biotechnology, the continuous production of ZIF-biocomposites of specific particle size is desirable. We report the first continuous flow synthetic method for the encapsulation of a model protein (BSA) and a clinical therapeutic (α1-antitrypsin, AAT) in ZIF-8. We studied the in situ kinetics of nucleation, growth and crystallization of BSA-ZIF-8 by SAXS. By controlling the injection time of ethanol, we could quench the particle growth via ethanol-induced crystallization. The particle size of the biocomposite was tuned in the 40-100 nm range by varying residence time prior to introduction of ethanol.
SMILES-Based Deep Generative Scaffold Decorator for De-Novo Drug Design
Authors: Arús-Pous Josep , Patronov Atanas , Bjerrum Esben Jannik , Tyrchan Christian , Reymond Jean-Louis , Chen Hongming , Engkvist Ola
Published: January 2020

Molecular generative models trained with small sets of molecules represented as SMILES strings are able to generate large regions of the chemical space. Unfortunately, due to the sequential nature of SMILES strings, these models are not able to generate molecules given a scaffold (i.e. partially-built molecules with explicit attachment points). Herein we report a new SMILES-based molecular generative architecture that generates molecules from scaffolds and can be trained from any arbitrary molecular set. This is possible thanks to a new molecular set pre-processing algorithm that exhaustively cuts all combinations of acyclic bonds of every molecule, obtaining a large number of scaffold-decorations combinations. Moreover, it serves as a data augmentation technique and can be readily coupled with randomized SMILES to obtain even better results with small sets. Two examples showcasing the potential of the architecture in medicinal and synthetic chemistry are described: First, models were trained with a training set obtained from a small set of Dopamine Receptor D2 (DRD2) active modulators and were able to meaningfully decorate a wide range of scaffolds and obtain molecular series predicted active on DRD2. Second, a larger set of drug-like molecules from ChEMBL was selectively sliced using synthetic chemistry constraints (RECAP rules). Moreover, the resulting scaffold-decorations were filtered to only allow decorations that were fragment-like. This allowed models trained with this dataset to selectively decorate diverse scaffolds with fragments that were generally predicted to be synthesizable and attachable to the scaffold using known synthetic approaches. In both cases, the models were already able to decorate molecules using specific knowledge without the need to add it with other techniques, such as reinforcement learning. We envision that this architecture will become a useful addition to the already existent architectures for de-novo molecular generation.
Fluorescence of BODIPY Dyes in Gas Phase at near Ambient Conditions
Authors: Mariewskaya Kseniya A. , Larkin Denis , Samoilichenko Yuri , Korshun Vladimir , Ustinov Alex
Published: January 2020

Molecular fluorescence is a phenomenon that is usually observed in condensed phase. It is strongly affected by molecular interactions. The study of fluorescence spectra in the gas phase can provide a nearly-ideal model for the evaluation of intrinsic properties of the fluorophores. Unfortunately, most conventional fluorophores are not volatile enough to allow study of their fluorescence in the gas phase. Here we report very bright gas phase fluorescence of simple BODIPY dyes that can be readily observed at atmospheric pressure using conventional fluorescence instrumentation. To our knowledge, this is the first example of visible range gas phase fluorescence at near ambient conditions. Evaporation of the dye in vacuum allowed us to demonstrate organic molecular electroluminescence in gas discharge excited by electric field produced by a Tesla coil.
Enantiodivergent Formation of C–P Bonds: Synthesis of P-Chiral Phosphines and Methyl-phosphonate Oligonucleotides
Authors: Xu Dongmin , Rivas-Bascón Nazaret , Padial Natalia M. , Knouse Kyle W. , Zheng Bin , Vantourout Julien C. , Schmidt Michael A. , Eastgate Martin , Baran Phil
Published: January 2020

A simple limonene-derived P(V)-based reagent for the modular, scalable, and stereospecific synthesis of chiral phosphines and methyl-phosphonate oligonucleotide (MPO) building blocks is presented. Built on a translimonene oxide (TLO) core, this formally triply electrophilic reagent class displays starkly differing reactivity from the cis-limonene oxide derived reagents reported previously [dubbed phosphorus-sulfur incorporation reagents or Ψ (PSI) for short]. These new phosphorus-incorporation reagents (PI, abbreviated as Π) access distinctly different chemical space than Ψ. The P(V)-manifold disclosed herein permits the stereochemically controlled sequential addition of carbon-based nucleophiles (from one to three) to produce a variety of enantiopure C–P bearing building blocks. When three carbon nucleophiles are added, useful P-chiral phosphines can be accessed after stereospecific reduction. When a single methyl group is added, the remaining nucleophiles can be nucleosides thus opening the door to the first stereospecific access to MPO-based oligonucleotide building blocks. Although both enantiomers of Π are available, only one isomer is required as the order of nucleophile addition controls the absolute stereochemistry of the final product through a unique enantiodivergent design.
Anomalously High Proton Conduction of Interfacial Water
Authors: Artemov Vasily , Uykur Ece , Kapralov Pavel , Kiselev Alexei , Stevenson Keith , Ouerdane Henni , Dressel Martin
Published: January 2020

Water at the solid-liquid interface exhibits an anomalous ionic conductivity and dielectric constant compared to bulk water. Both phenomena still lack a detailed understanding. Here, we report radiofrequency measurements and analyses of the electrodynamic properties of interfacial water confined in nano-porous matrices formed by diamond grains of various sizes, ranging from 5 nm to 0.5 μm in diameter. Contrary to bulk water, the charge-carrying protons/holes in interfacial water are not mutually screened allowing for higher mobility in the external electric field. Thus, the protonic conductivity reaches a maximum value, which can be five orders of magnitude higher than that of bulk water. Our results aid in the understanding of physical and chemical properties of water confined in porous materials, and pave the way to the development of new type of highly-efficient proton-conductive materials for applications in electrochemical energy systems, membrane separations science and nano-fluidics.
Robust Synthesis of NIR-Emissive P-Rhodamine Fluorophores
Authors: Sauer Maria , Nasufovic Veselin , Arndt Hans-Dieter , Vilotijevic Ivan
Published: January 2020

P-rhodamines were accessed by implementing a robust three step sequence consisting of (i) addition of m-metallated anilines to dichlorophosphine oxides, (ii) selective dibromination, and (iii) cyclization of the diaryllithium reagents derived from the dibromides to form the dihydroacridophosphine core of P-rhodamines. A modified route to produce non-symmetric P-rhodamines was additionally developed. A library of the prepared P-rhodamines provides first insight into dependence of fluorophore properties on the structure of P-rhodamines. A P-rhodamine with highest batochromic shifts and quantum yields in the class was identified.
Integrating Deep Neural Networks and Symbolic Inference for Organic Reactivity Prediction
Authors: Qian Wesley Wei , Russell Nathan T. , Simons Claire L. W. , Luo Yunan , Burke Martin D. , Peng Jian
Published: January 2020

Accurate in silico models for the prediction of novel chemical reaction outcomes can be used to guide the rapid discovery of new reactivity and enable novel synthesis strategies for newly discovered lead compounds. Recent advances in machine learning, driven by deep learning models and data availability, have shown utility throughout synthetic organic chemistry as a data-driven method for reaction prediction. Here we present a machine-intelligence approach to predict the products of an organic reaction by integrating deep neural networks with a probabilistic and symbolic inference that flexibly enforces chemical constraints and accounts for prior chemical knowledge. We first train a graph convolutional neural network to estimate the likelihood of changes in covalent bonds, hydrogen counts, and formal charges. These estimated likelihoods govern a probability distribution over potential products. Integer Linear Programming is then used to infer the most probable products from the probability distribution subject to heuristic rules such as the octet rule and chemical constraints that reflect a user's prior knowledge. Our approach outperforms previous graph-based neural networks by predicting products with more than 90% accuracy, demonstrates intuitive chemical reasoning through a learned attention mechanism, and provides generalizability across various reaction types. Furthermore, we demonstrate the potential for even higher model accuracy when complemented by expert chemists contributing to the system, boosting both machine and expert performance. The results show the advantages of empowering deep learning models with chemical intuition and knowledge to expedite the drug discovery process.
THE EFFECTIVENESS OF DIRECT INTERACTION MODEL–ASSISTED MACROMEDIA FLASH ON COLLIGATIVE PROPERTIES OF SOLUTIONS MATERIAL
Authors: Fatayah Fatayah , Purwanto Kriesna Kharisma
Published: January 2020

Abstract. The purpose of this study was to determine the effectiveness of the use of direct instruction model-assisted macromedia flash. The effectiveness of the learning model are measured by two indicators, that are the activities of students during learning and the level of completeness of student learning outcomes after learning activities. From the analysis of the data it is known that the activities of students during learning are at scores 4 and 5, the average cognitive score of students is 78 and the lowest score was 76. From the results of this study it can be concluded that the application of direct instruction model based on macromedia flash is effective to reduce student learning difficulties Class XII IPA MA Al-Khoiriyah Dalegan Panceng on the colligative properties of the solutions material. Keywords: effectiveness, direct instruction model, macromedia flash, colligative properties of solutions
PENGARUH KETERAMPILAN KEPALA SEKOLAH DAN KOMPETENSI GURU TERHADAP MUTU LAYANAN PENDIDIKAN SMA SWASTA DI KOTA TEGAL
Authors: Setiani Desi Arief , Sunandar Sunandar , Yuliejantiningsih Yovitha
Published: January 2020

Tujuan penelitian ini adalah: 1) mengetahui pengaruh keterampilan kepala sekolah terhadap mutu layanan pendidikan SMA swasta, 2) mengetahui pengaruh kompetensi guru terhadap mutu layanan pendidikan SMA Swasta 3) mengetahui pengaruh keterampilan kepala sekolah dan kompetensi guru secara bersama-sama terhadap mutu layanana pendidikan SMA Swasta di Kota TegalPopulasi penelitian ini 148 guru SMA Swasta di Kota Tegal. Sampel 148 guru diambil proportional random sampling. Metode pengumpulan data dalam penelitian  ini adalah metode kuesioner. Analisis data yang digunakan adalah uji prasyarat serta uji hipotesis yang meliputi analisis regresi sederhana dan rgreasi ganda digunakan program SPSS.Hasil penelitian menunjukkan skor rata-rata keterampilan kepala sekolah adalah 201,54  dikategorikan  tinggi, skor rata-rata kompetensi guru adalah  234,77 dikategorikan tinggi, skor rata-rata mutu layanan pendidikan adalah 399,32  dikategorikan tinggi. Pada keterampilan kepala sekolah indikator terendah menyelesaikan konflik, variabel kompetensi guru indikator terendah pada evaluasi pembelajaran, sedangkan pada variabel mutu layanan pendidikan indikator terendah pada perencanaan pembelajaran.Disarankan kepala sekolah  merubah konflik tersebut menjurus ke hal positif, serta memberikan bimbingan kepada guru dan memperbaiki mutu proses belajar mengajar dengan cara mengagendakan pelaksanaan workshop dengan guru sehingga meningkatkan kualitas pembelajaran serta melibatkan peran masyarakat dankemitraan untuk mendukung program sekolah.
Specialized Nutritional Support and its Ethical Issues
Authors: Omaña- Covarrubias Arianna , Moya-Escalera Adrián , López-Noguerola Sócrates
Published: January 2020

The chronic condition of some pathology may lead the patient to a critical condition or even to an end-stage, putting the multidisciplinary group in an ethical conflict; as well as the family. Considering that the objective of healthcare staff has always been the well-being through prevention and correction of the clinical condition, avoiding, at all times, to relief pain and suffer, now having to address the therapeutic help to a “good death” of the patient. The cultural conditions have changed and death is not perceived the same way it used to be, nor by the society nor the group providing attention and care to the critical or end-stage patient, generating expectations for each case, separating the patient from reason and reality (1). Today, science has had a technological advance having a direct impact on the vital function of the patient, having a direct influence on the time, but mainly on the way of death, focusing the attention on the possible decisions of the seriously sick patient, starting the era of an “assisted death”, as opposed to a natural death (1,2).
Case Report: Coxa-osteoarthritis and quality of poor medical care with traumatic iatrogenesis due to non-specialized medical disability
Authors: Ruvalcaba-Ledezma Jesús Carlos , Vargas-Sánchez Gloria , Reynoso-Vázquez Josefina , López-Pontigo Lydia
Published: January 2020

Objective. To describe the beginnings and evolution of this condition, as well as to generate a proposal in the medical practice for the trauma service in order to avoid complications due to inadequate patient care derived from the intervention of resident doctors; not yet defined as traumatologists as the main axis of disability and complications generated in the patient with coxa-osteoarthritis. Material and methods. A case of coxa-osteoarthritis with disabling complications derived from non-specialized care with traumatic and disabling consequences for the patient was analyzed based on laboratory tests and what the patient refers. Results. The patient is on sick leave and her life quality has been affected because of a femoral fracture caused by a physician who was not specialized in traumatology. This showed quality deficiency in medical care, diagnostic errors, poor professional capacity of the health care staff, delay in scheduled X-Ray studies, poor imaging technique hampering a timely diagnosis, and the health care staff being indifferent to the pain of others. Conclusion. The patient is on permanent disability from work, with a left femur prosthesis derived from the fracture caused by a medical resident who was not specialized in trauma.
Life cycle assessment analysis of kenaf cultivation in bonorowo land, laren, lamongan
Authors: Irawati Desrina Yusi , Wulandari Lusi Mei Cahya
Published: January 2020

The largest kenaf culture in Indonesia is in Laren, Lamongan. Kenaf plants are suitable to be planted in the Bonorowo field. The less potential land conditions make the cultivation of kenaf plants must use chemicals. The use of chemicals has the potential to harm the environment. The approach to identifying and analyzing environmental impacts is the Life Cycle Assessment (LCA). LCA is one method to find out the life cycle of agriculture. LCA stages are Goal and Scope Definition, Life Cycle Inventory, Life Cycle Impact Assessment, and Interpretation. Environmental impact measurement is based on fifteen categories grouped into four categories. LCA processing results show the use of urea fertilizer has the most significant negative impact on the environment. The biggest impact category due to the use of urea fertilizer is aquatic ecotoxicity. The use of urea fertilizer affects the types of resources, climate change, ecosystem quality, and human health. Of the four groups, which have the highest value, are the resource group. The use of urea fertilizer has the most significant role in the success of kenaf cultivation because kenaf cultivation requires more N elements to improve the quality of kenaf stems. The use of organic fertilizer can be an option to reduce the use of urea fertilizer.
IMPLEMENTASI PEMBANGUNAN INFRASTRUKTUR DALAM PERCEPATAN PEMBANGUNAN DAERAH PEDALAMAN DI KECAMATAN MALINAU SELATAN KABUPATEN MALINAU
Authors: Royanto . , Idris Adam , Fitriyah Nur
Published: January 2020

The purpose of this research is to know how the Implementation of Infrastructure Development in Acceleration of Development of Inland Region in Kecamatan Malinau Selatan Malinau District. This research uses descriptive research and will be analyzed by using the inductive approach method. From the results of the research, Implementation of Infrastructure Development in Acceleration of Rural Development in Kecamatan Malinau Selatan has been running well, from year to year, there is a significant change but still needed sustainable development. Keywords: Infrastructure, Development, Acceleration
IMPLEMENTASI PENDELEGASIAN KEWENANGAN BUPATI KEPADA CAMAT STUDI PELAYANAN IZIN MENDIRIKAN BANGUNAN SKALA KECIL DI KECAMATAN KAYAN HILIR KABUPATEN MALINAU
Authors: Samion . , Patton Adri , Fitriyah Nur
Published: January 2020

This study aims to describe and analyze the Implementation of the Delegation of the Authority of the Regent to the Camat (Study Service License to Build a Small-Scale Building in Kayan Hilir Sub-district, Malinau District). This research includes descriptive research with a qualitative approach. The data analysis technique to be used is data analysis using an interactive model of analysis. The result of the research shows that the Implementation of the Delegation of the Authority of the Regent to the Camat (Study of Small Scale Building Permit Service in Kayan Hilir Sub-district, Malinau District) has not been optimally implemented.Keywords: Implementation, Delegation, Building Permit
Electrospun Spider-net Structured Nanofibers Membrane from Homogeneous Solution of Nylon-6 and Poly (Ethylene oxide)
Authors: Jha Manoj Kumar , Shah Dinesh , Dhital Khuma Sharma , Bhatta Lok Ranjan , Joshi Sahira , Sharma Ram Kumar , Pant Hem Raj
Published: January 2020

Membrane development encompasses wide range of technology areas including process and product design, materials engineering, chemical engineering, as well as interaction phenomenon. Advances in membrane technology can solve most of the global concerns related to water, air, energy, healthcare and global warming. In this study, a simple electrospinning technique was applied to prepare composite nanofibers from Nylon-6 and polyethylene oxide (PEO) blend solutions. The effect of PEO on the morphology of the fiber was investigated. It was observed that the addition of PEO in the Nylon-6 solution resulted in the formation of ultrafine nanofibers along with main the fiber, which can be considered as a spider-net-like morphology. The nano/sub-nano arrangement of the fiber resembling a three-dimensional (3D) spider-net structure enhances the mechanical strength of the resulting nanofibers as compared to the pristine Nylon-6 nanofibers.
SOCIAL MEDIA AS A SOURCE OF PREDICTIVE ANALYTICS FOR CUSTOMER SATISFACTION: AN EMPIRICAL INVESTIGATION OF STANDARD GAUGE RAILWAYS USERS IN KENYA
Authors: Ntale Moses Kizito Njagi , Mathenge Fr. Paul , Gikonyo Barnabas
Published: January 2020

Predictive analytics is used to analyze the vast amounts of information generated through internal and external sources such as live public transit data, train schedules, and bus feeds. The collection, storage, and mining of big data is on an increase as more automated platforms come online and this is an issue that is gaining attention in all business environments raising privacy concerns. However, the amount of data and its variety in data analytics may cause data management issues in areas of data quality, consistency and governance; resulting from different platforms and data stores in big data architecture causes data silos. Furthermore, integrating big data tools into a cohesive architecture that meets an organization's big data analytics needs is a challenging proposition for the analytics experts, which have to identify the right mix of technologies and then put the pieces together. This study therefore, investigated the influence of social media as a source of predictive analytics on customer satisfaction of Standard Gauge Railways (SGR) users. This research followed a cross sectional survey research design. The study targeted the customers and employees of SGR Nairobi terminus from which a sample size of 68 respondents was picked using from the Nairobi Terminus station through use of convenient sampling technique. This study used a questionnaire to collect primary data. Data obtained from the field was converted into useful information using qualitative and quantitative description qualitative was done through observation and analyzed through use of content analysis. On the other hand, quantitative data was analyzed through inferential techniques namely correlation and multiple regression. The findings indicated that usage of social media for information, mode of payment, SGR classes, and rates/fare had significant effect on customer satisfaction. It was recommended that the management of SGR should: place regular offers of discounts or freebies and give away on its sites; frequently update its social media sites with interesting information and product updates; and make the social sites more interactive to allow online members to invite others who are non-members of these social sites to sign up for the SGR services.
Model and method for diagnosing computer incidents in information and communication systems based on deep machine learning
Authors: Malikov Albert , Avramenko Vladimir , Saenko Igor
Published: January 2020

Introduction: Models and methods for diagnosing computer incidents recorded in information and communication systems are the most important components in mathematical support of information security systems. The main requirement for the diagnostics is prompt identification of security violation characteristics. This problem is complicated due to the amount and variability of the initial data on information security violation. Purpose: Development of a model for diagnosing a computer incident, along with a method which would allow you to quickly determine the characteristics of a security violation. Results: Security breach characteristics important for making a decision about responding to an identified computer incident can be determined via deep artificial neural networks. A structural feature of the proposed deep artificial neural network is combining the coding part of the autoencoder and a multilayer perceptron. In addition, the method implements a parallel mode of processing information events which have occurred in the information and communication system before the incident was detected, by using a separate proposed artificial neural network for each secondary characteristic of the security breach. The method of determining the values of these secondary characteristics allows you to greatly improve the diagnostics efficiency, having acceptable values of precision and recall for the security violation characteristics to determine. The dependence has been studied of the completeness and classification accuracy on the number of neurons in the hidden layer. A sufficient number of neurons in the hidden layer for achieving the required training efficiency is experimentally determined. Practical relevance: The developed model and method can be implemented using standard software and hardware (servers) of an information and communication system. Their combined use with the existing models and methods of monitoring and diagnostics can significantly improve the efficiency of an information security system.
SINIF ÖĞRETMENLERİNİN İLKOKUL ÖĞRENCİLERİNE YÖN VE YÖN BULMA İLE İLGİLİ KAZANIMLARIN KAZANDIRILMASINA İLİŞKİN GÖRÜŞLERİ
Authors: DEMİRBAŞ İbrahim , AYDINÖZÜ Duran , DEMİR F. Betül
Published: January 2020

Araştırmanın amacı, ilkokul öğrencilerine yön ve yön bulma ile ilgili kazanımların kazandırılmasına yönelik sınıf öğretmenlerinin görüşlerini tespit etmektir. Araştırma, nitel araştırma modeli ile yürütülmüştür. Araştırmanın çalışma grubunu Kastamonu ilinde görev yapmakta olan 35 sınıf öğretmeni oluşturmaktadır. Araştırmada veriler yapılandırılmış açık uçlu görüşme formu ile toplanmıştır. Elde edilen veriler içerik analizi ile çözümlenmiştir. Araştırma sonucunda, öğretmenlerin yön kavramını tanımladıkları görülmektedir. Öğretmenler yön ve yön bulma ile ilgili konuların en fazla sosyal bilgiler dersinde ele aldıkları; yön bulma tekniklerinden en fazla pusulayı kullandıkları; öğrencilerin ise güneşi kullandıkları tespit edilmiştir. Öğretmenler yön öğretimi kapsamında en fazla teknolojik aletler ile haritaya başvurduklarını; yön ve yön bulma ile ilgili kazanımların kazandırılmasında karşılaşılan engellerin başında konunun soyut olması ve yön kavramlarının öğrenciler tarafından karıştırıldığını belirtmektedir. Ayrıca öğrencilerin kroki çizmede zorlandıklarını ifade edilmektedir. Sonuçlar doğrultusunda öğrencilerin etkin olduğu faaliyetlerin yapılması, yön bulma etkinliklerinin diğer derslerle ve günlük hayatla ilişkilendirmesi, yön bulma ile ilgili öğretmen yeterliliklerini arttırılması gibi önerilere yer verilmiştir.
SAMSUN İLİNİN METROPOL İLÇELERİ ARASINDA, DEMOGRAFİK VE KÜLTÜREL ÖZELLİKLERE GÖRE MEKÂNSAL AYRIŞMA
Authors: ŞENOL Eren
Published: January 2020

Genel olarak, insanların bir yerleşim sahasındaki ikamet
alanı tercihleri üzerinde doğal, demografik, kültürel, ekonomik ve siyasi
faktörler etkili olmaktadır. Bu faktörler altında bilinçli, zorlayıcı ve
tesadüfi seçimler sonucunda, belli grupların, belli alanlarda yoğunlaştığı,
kümelendiği tespit edilmekte; bu durum mekânsal ayrışma olarak
tanımlanmaktadır. Eldeki çalışmada, Türkiye İstatistik Kurumu (TÜİK) tarafından
ilçe düzeyinde sunulan yaş, cinsiyet, eğitim durumu, nüfusa kayıtlı olunan yer,
milletvekili seçim sonuçları veri setleri analiz edilerek, Samsun ilinin
metropol ilçelerinde mekânsal ayrışma izleri aranmıştır. Sonuçta metropol
ilçeler arasında nüfusta, yukarıda ifade edilen özelliklere göre anlamlı
farklılıklar olduğu, özellikle Atakum ve Canik ilçelerinin birbirinden
ayrıştığı tespit edilmiştir.