bluuebunny/crossref_metadata_2025 huggingface dataset:
АНАЛИЗ ПОВЕДЕНИЯ РОССИЙСКИХ ПОТРЕБИТЕЛЕЙ ПАРФЮМЕРИИ И КОСМЕТИКИ
Authors: Prokhorova Maria Petrovna , Bulganina Svetlana Viktorovna , Bulganina Anastasiya Evgenevna , Belousova Ksenia Vladimirovna
Published: July 2019

В статье дано описание результатов маркетингового исследования сети магазинов парфюмерии и косметики. Целью данной работы разработка рекомендаций для совершенствования маркетинговой политики розничных торговцев косметикой на основе анализа результатов проведенного опроса. При проведении исследования использовались социологические и статистические методы исследований.Новизна полученных результатов работы заключается в уточнении важных для маркетинговой деятельности характеристик покупателей, таких как источники получения информации о магазинах парфюмерии и косметики и факторы их выбора, осведомленность клиентов о характеристиках парфюмерно-косметической продукции и заинтересованность их в новинках, лояльность покупателей к магазинам сети и оценка их конкурентоспособность. Сделаны выводы, что наибольшая доля покупателей предпочитает продукцию среднего и массового сегмента, а наиболее эффективными способами продвижения являются наружная реклама и информация в сети интернет. В качестве основных выводов указаны тенденции индивидуализации «масс-маркета» и усиления внимания клиентов к качеству сервиса. Результаты работы представляют практический интерес для разработки решений в области маркетинговой деятельности компании.
НАПРАВЛЕНИЯ НАЛОГОВОЙ РЕФОРМЫ В НЕФТЕДОБЫВАЮЩЕЙ ОТРАСЛИ
Authors: Osina Daria Ovegovna
Published: July 2019

Доходы, получаемые от налогообложения добычи нефти, являются одним из основных источников доходов бюджетной системы Российской Федерации. При разработке государственной налоговой политики повышенное внимание уделяется механизму налогообложения добычи углеводородных полезных ископаемых, что находит отражение в порядке исчисления налога, уплачиваемого нефтегазодобывающими предприятиями, а также в изменении размера экспортной пошлины, уплачиваемой российскими экономическими субъектами.Цель – определить возможные направления налоговой реформы в нефтедобывающей отрасли.Метод и методология проведения работы: в статье использованы такие методы научного познания как диалектическое познание, сравнительный и статистический анализ, обобщение.Результаты: сформулированы новые подходы к налогообложению добычи углеводородных полезных ископаемых.Область применения результатов: полученные результаты целесообразно применить при формировании основных направлений налоговой политики на предстоящий период.
Modern British, Irish and American literature: a kaleidoscope of genres, themes, styles
Authors: Лушникова Галина , Lushnikova Galina , Осадчая Татьяна , Osadchaya Tat'yana
Published: July 2019

The manual introduces students to British, Irish and American fiction of the late XX - early XXI century. Each chapter contains a brief information about the author, questions on his or her specific works and test tasks; all this allows students to identify the unique style of each of the presented writers. Fragments of the works of literature proposed for study are supposed to be an object of literary, linguistic and linguo-cultural analysis. The choice of personalities is aimed at representing the diversity of genres, themes and styles of modern English-language literature. The manual is intended for undergraduate, graduate and postgraduate students of philological departments - future linguists, literature and cultural studies scholars.
Information Aggregation and P-Hacking
Authors: Rytchkov Oleg , Zhong Xun
Published: July 2019

This paper studies the interplay between information aggregation and p-hacking in the context of predicting stock returns. The standard information-aggregation techniques exacerbate p-hacking by increasing the probability of the type I error. We propose an aggregation technique that is a simple modification of three-pass regression filter/partial least squares regression with an opposite property: the predictability tests applied to the combined predictor become more conservative in the presence of p-hacking. Using simulations, we quantify the advantages of our approach relative to the standard information-aggregation techniques. We also apply our aggregation technique to three sets of return predictors proposed in the literature and find that the forecasting ability of combined predictors in two cases cannot be explained by p-hacking.

This paper was accepted by Karl Diether, finance.
Signaling Quality via Long Lines and Uninformative Prices
Authors: Debo Laurens , Rajan Uday , Veeraraghavan Senthil K.
Published: July 2019

Problem definition: We study the following puzzle: why do firms sometimes nurture long wait lines, rather than raising prices (to eliminate these lines)? Academic/practical relevance: In economic theory, prices are studied as a signal of quality, in absence of congestion (wait lines). We study price signaling when customers not only infer quality information from the price, but also from wait lines. Methodology: We developed a stylized model based on queuing and price signaling theory. The firm, privately informed about its quality (high or low), first determines its price. Next, customers arrive according to a Poisson process, observe the price and the wait line upon arrival, and decide whether to purchase. Results: When the proportion of informed consumers is low, to separate on price a high-quality firm must raise its price above the monopoly price. We show that there exist pooling equilibria in which firms instead charge a price lower than the monopoly price. We characterize two pooling equilibria. In both equilibria, a high-quality firm on average has a longer queue than a low-quality one, and long lines signal high quality. In the first one, the price is sufficiently low that short lines in turn signal low quality, so that the queue length almost perfectly reveals the type of the firm. In the second one, the price is in an intermediate range (but remains lower than the monopoly price), and short lines are an imperfect signal of quality. In each of the pooling equilibria, the high-quality firm earns a higher profit than in the separating equilibrium, despite the longer lines. Managerial implications: An empirical implication of our model is that, over time, when more customers become informed about the quality, the price of a new high-quality good should increase and the expected waiting lines should decrease. Our model integrates elements of price signaling in economics and equilibrium queueing in operations research. We hope that our research stimulates further interest in signaling games in service operations environments.
Ultrasound Assisted Method Development for the Determination of Selected Sulfonamides in Honey Using Liquid Chromatography-Tandem Mass Spectrometry
Authors: Manimekalai M. , Sheshadri Anand , Kumar K. Suresh , Rawson Ashish
Published: July 2019

Honey is a highly valuable natural product, which is consumed by people of all age groups unaware of the high load of veterinary drug residues present. Sulfonamides are one such class of veterinary drugs, which are used in apiculture in higher amounts and impose a lot of negative health effects. This paper describes an analytical method developed for simultaneous determination of two Sulfonamides (Sulfamethizole and Trimethoprim) in honey using liquid chromatography- tandem mass spectrometry (LC-MS/MS). Suitable fragmentor voltage and collision energy were optimised for both the analytes. Five different sample preparation techniques based on ultrasonication were evaluated. In which ultrasonication at 80% amplitude, 5 minutes at 45°C gave improved recoveries. On validation, the developed method showed good linearity with r2 values in the range of 0.98-0.99 for both the sulfonamides. The effect of matrix on the method developed was evaluated and was found that the sample matrix does not pose considerable interferences with excellent linearities with r2 values above 0.95 for both the analytes. The method developed was found to be very selective and can find application in routine analysis for the determination of sulfonamides from honey samples.
nalysis of Fatty Acid Composition in the Flesh of Boal (Wallagu Attu)
Authors: Dutta Pinak , Dutta Mita
Published: July 2019

The fatty acid composition of the muscle tissue of Wallagu attu found in Gangetic West Bengal, India was investigated to get an insight of its nutritional capacity. The fish muscle proved to be a rich source of both mono and poly unsaturated fatty acids. Of the saturated fatty acids Palmitic and Heneicosanoic acid is detected in considerable amount. Of the MUFA’s present Palmetoleic acid, Elaidic acid, Oleic acid and nervonic acid is found in good amount. Nutritionally important ω-6 PUFA’s like Linoleic acid and Arachidonic acid are found in the fish. EPA and DHA the two star ω-3 PUFA’s whose health benefits are beyond doubt are also detected in the fish. Wallagu attu is generally not farmed as it devours other fishes but considering its nutritional capacity and high market demands, its farming may prove beneficial for consumers and producers.
Dialectical Methods and the Stoicheia Paradigm in Plato’s Trilogy and Philebus
Authors: Smith Colin C.
Published: July 2019

Plato’s Theaetetus, Sophist, and Statesman exhibit several related dialectical methods relevant to Platonic education: maieutic in Theaetetus, bifurcatory division in Sophist and Statesman, and non-bifurcatory division in Statesman, related to the ‘god-given’ method in Philebus.  I consider the nature of each method through the letter or element (στοιχεῖον) paradigm, used to reflect on each method.  At issue are the element’s appearances in given contexts, its fitness for communing with other elements like it in kind, and its own nature defined through its relations to others.  These represent stages of inquiry for the Platonic student inquiring into the sources of knowledge.
Plato’s Socrates, Sophistic Antithesis and Scepticism
Authors: Blyth Dougal
Published: July 2019

In some Platonic dialogues Socrates apparently shares significant characteristics with contemporary sophists, especially a technique of antithetical argumentation.  Since sophists anticipated later Academic philosophers in arguing antithetically and a resultant form of, then, with Socrates’ repeated claims to ignorance, Plato’s depiction of him arguing antithetically suggests later Academics could plausibly appeal to Plato for evidence that Socrates and he were, as it seems they actually did.
Health problems of Iraqi police dogs referred to Baghdad Veterinary Hospital during 2015-2017
Authors: Tamimi Naqa Saleh Mahdi , Wali Abdulraheem Abduljalil
Published: July 2019

Background and Aim: Police dogs in Iraq have been working mostly as explosive detectors since 2003. The health problems of these dogs are unique and have not been reported in literature. This investigation assessed the prevalence of health problems in Police dogs referred to Baghdad Veterinary Hospital during 2015-2017. Materials and Methods: A total of 1220 police dogs that were referred to Baghdad Veterinary Hospital in 2015-2017 were studied. The dogs were mostly German Shepherd dogs (GSDs) or Belgian Malinois (BM), with an average age of 4.6 years. The dogs' health problems and some of their risk factors were studied. Results: Congestive heart failure (CHF), babesiosis, various malignancies, and intestinal parasites were the most commonly diagnosed health problems, followed by general aging, bronchopneumonia, otitis, nutritional deficiencies, and anemia. GSDs were more prone to CHF, while BM had more diagnoses of malignancies. Age was associated with both health conditions. Conclusion: The presence of health problems in these working dogs highlights the need for a stricter and more organized preventive schedule to keep the dogs healthy and efficient at old age.
Harnessing horses in social pedagogy: Equine-assisted social education in a school context
Authors: Mickelsson Ritva
Published: July 2019

This article introduces a school-based social pedagogical programme using horses to support pupils’ educational development, social and emotional skills and self-esteem. These are essential for pupils’ well-being, to reduce the risk of developing emotional disorders in youth and later life. In terms of academic outcomes, these social-emotional skills, character strengths and health benefits are recognised in the Finnish educational agenda. Equine-assisted social education (EASE) differs from recreational riding programs by its frame of reference in social pedagogy and in the human–equine bond it features, positioning horses as co-educators to improve interaction and collaboration. This human–equine communication supports both human and equine welfare if applied with attention, respect and empathy. Furthermore, the stables environment provides a setting for enhancing the pedagogical relationship and trust between pupils and their teacher. This equine activity practice, like other educational interventions, has physical, behavioural, social and emotional intentions. In addition, as social pedagogy is a complex and innovative discipline, EASE represents a ground-breaking practice within this discipline. The purpose is to respond to individual and social difficulties with preventive and problem-solving practice. As Finnish social pedagogy emphasises educational dialogue and communication, EASE facilitates non-verbal communication and positive behaviour. Additionally, it consists of factors improving collaboration through experiences, activities and dialogue.
Editorial
Authors: Silva Mariana Batista do Nascimento
Published: July 2019

Editorial DiversaPrática
A Review On FSO By Using Different Modulation Techniques
Authors: Miglani Rajan , Charak Sachal , Kumar Arora Sandeep , Masud Mahedi
Published: July 2019

Now a days as we are seeing that the free space optics is one of the emerging technology used for the replacement of the radio frequency wireless communication, due to their advantages over it like cost, speed, bandwidth, minimum error as well as efficient communication. The quality of services provided by the FSO is far better than the RF communication network. The free space optics is unlicensed band which make it less costly than the licensed band technology. As the atmospheric channel is used for transmission the effects of atmospheric condition effects the communication. In this paper we try to discuss all the modulation schemes which help to improve the performances of the optic system.
Introduction to Bigdata and Relation with IoT
Authors: Deore Anjali , . .
Published: July 2019

Big Data consist of large scale data which is complicated and diverse, so that new and different types of integration of techniques and technologies are required to uncover various hidden values from such big datasets. Big Data surrounding is used to set up and examine the diverse sorts of information. Big Data be data that is so massive in volume, so various in range or moving with excessive speed is referred to as Big Data. Acquiring and analysing Big Data be a challenging job because it consists of large dispersed file systems which must be bendy, fault tolerant and scalable. Diverse technologies used by big data application toward hold the huge quantity of data are Hadoop, Map Reduce, and so on. In this paper, firstly the description of big dataset is provided. In next section the different technologies are described which are used for managing Big Data. After that, Big Data method application and in last section we discuss the relation of Big Data and IoT as well as IoT for Big Data analytics.
Power as an ethical concern in the Global South’s digital transformation
Authors: Wakunuma Kutoma
Published: July 2019

The digitalization of the Global South, particularly with respect to African countries, is moving at a fast pace. This can be seen in the use of information and communications technology (ICT) in different domains such as healthcare, education, industry, entertainment, as well as in the provision of e-government services, to name just a few. Such digital progress is seen as positive and often presented as such in international development discussions, for example at the World Summit on the Information Society Forum 2019 on ICTs for achieving the United Nations’ Sustainable Development Goals. Despite the positives, there are also negative aspects of digitalization, which have to be addressed in the form of ethical concerns. This paper discusses these concerns by specifically exploring the aspect of power in light of the digital transformation of the Global South. The discussion advanced in this paper is informed by a review of literature.
PERLINDUNGAN HUKUM NASABAH PERBANKAN DALAM TRANSAKSI ELEKTRONIK
Authors: Syaifuddin Luthfi , Prananingtyas Paramita
Published: July 2019

Electronics is now a necessity for modern society to use it as a means of payment. In the trade business for example, technological advances have given rise to the method of transactions known as E-Commerce (Electronic Commerce). The use of internet facilities is a technological advancement that can be said to support the overall spectrum of commercial activities. The method of approach used in this study is empirical juridical, which uses the primary data of BNI leadership Kcp Ngaliyan through interviews and secondary data through library research. All data collected was analyzed using a qualitative method then presented descriptively so that a conclusion was obtained. Based on the results of the study Legal protection for customers of E-Banking users has not run properly. Legal safeguards against customers of E-Banking users can only be realized with the participation of various parties. The customer must be more proactive in knowing his rights and obligations and also the Bank should be more open and improve its performance. Also Electronic Information and Transactions require a more representative formulation that can reach all forms of crime using E Banking Keywords: Customer Legal Protection, Electronic Transactions AbstrakElektronik saat ini merupakan suatu kebutuhan masyarakat modern untuk menggunakannya sebagai sarana pembayaran. Dalam bisnis perdagangan misalnya, kemajuan teknologi telah melahirkan metode bertransaksi yang dikenal dengan istilah E-Commerce ( Electronic Commerce ). Penggunaan sarana internet merupakan suau kemajuan teknologi yang dapat dikatakan menunjang secara keseluruhan spectrum kegiatan komersial.Metode pendekatan yang digunakan dalam penelitian ini adalah yuridis empiris, yang menggunakan data primer pimpinan BNI Kcp Ngaliyan melalui wawancara dan data sekunder melalui studi kepustakaan. Seluruh data yang tekumpul dianalisis menggunakan metode kualitatif kemudian dipaparkan secara deskriptif sehingga diperoleh suatu kesimpulan. Berdasarkan pada hasil penelitian Perlindungan hukum terhadap nasabah pengguna E-Banking  belum berjalan sebagaimana mestinya. Upaya Perlindungan hukum terhadap nasabah pengguna E-Banking hanya dapat terwujud dengan adanya partisipasi dari berbagai pihak. Pihak nasabah harus bersikap lebih proaktif untuk mengetahui hak dan kewajibannya dan juga pihak Bank hendaknya lebih bersikap terbuka dan memperbaiki kinerjanya. Juga Informasi dan Transaksi Elekronik diperlukan perumusan yang lebih representatif yang dapat menjangkau semua bentuk kejahatan dengan menggunakan  E Banking. Kata kunci : Perlindungan Hukum Nasabah, Transaksi Elektronik
Využití pojmových map s následným rozhovorem jako výzkumného nástroje při hledání žákovských miskoncepcí
Authors: Pavlátová Věra
Published: July 2019

Článek ilustruje tvorbu a reflexi pojmových map (= PM) ve výzkumu publikovaném v tomto čísle Envigogiky („Dětská pojetí vybraných environmentálních fenoménů u žáků 1. a 2. stupně základní školy“). Zde byly pojmové mapy a následný doplňující rozhovor využity k analýze porozumění významu vybraných fenoménů. Každý žák měl nejprve pochopit, co je pojmová mapa, a mohl si vyzkoušet, jak se vytváří. Pro účely výzkumu pak zpracoval vlastní pojmovou mapu, vždy kolem vybraného centrálního fenoménu (celkem jich bylo 8). V rámci následujícího rozhovoru s výzkumníkem tento žák vysvětloval své myšlenkové operace v PM, případně pomocí návodných otázek ještě dále pokračoval v rozboru. O použité metodě více vypovídá související článek; zde přinášíme příklad tvorby pojmových map a průběhu rozhovoru s jedním ze žáků a zobecnění všech provedených rozhovorů.
Rozvíjení vztahu ke krajině a možnosti primárního vzdělávání
Authors: Brendzová Alica
Published: July 2019

Recenzní úvod disertační práce Ing. arch. Kristýny Staré, obhájené na Fakultě architektury ČVUT, Praha, v roce 2019.

Stávající kurikulum umožňuje začlenění tématu krajiny s využitím poznatků oboru architektura a urbanismus do výuky na základních školách s cílem podpořit vzdělávání vedoucí k uvědomělé a občansky angažované společnosti. Obvykle se však tyto vstupy omezují spíše na mimořádné projekty a programy nabízené externími odborníky, především z nestátních neziskových organizací.

Disertační práce Kristýny Staré prověřuje možnosti, jak podpořit a rozvíjet vztah dětí raně školního věku ke krajině prostřednictvím integrace témat oboru architektura a urbanismus do kurikula primárního vzdělávání. Zaměřuje se na české prostředí s přihlédnutím k zahraničním modelům jako volné inspiraci.

Ve vlastním výzkumu jsou využity kvalitativní i kvantitativní metody aplikovaného společenskovědního výzkumu. Stěžejní zdroj dat představují polostrukturované rozhovory s tzv. ohniskovou skupinou, která průřezově pokrývá odborníky napříč profesemi a institucionální hierarchií, a pedagogy, kteří se účastnili experimentální fáze výzkumu. Data z rozhovorů jsou analyzovaná a interpretována podle principů zakotvené teorie.

Výsledkem komparace a evaluace získaných dat jsou tyto výstupy: (1) návrh opatření potřebných pro zvyšování povědomí neodborné veřejnosti o tématu a jejich systematické začleňování do školního vzdělávání; (2) přínosy výsledků výzkumu pro představitele oboru architektura – urbanismus a oborů příbuzných a pro pedagogy, kteří se dosud tématem krajiny blíže nezabývali, i pro zainteresovanou odbornou veřejnost; (3) v neposlední řadě jsou pojmenovány limity realizovaného výzkumu a nastíněny výzvy pro výzkumy navazující.
Examining Opioid Overdose Data in Atlantic County: A Descriptive Case Study
Authors: Crowell, et al Tara
Published: July 2019

Between 2015-2017, local police, state troopers and emergency medical personnel in Atlantic County, NJ collected data on opioid overdose victims within the County. Forms on 311 overdose victims were ultimately completed. Early in 2018, a partnership between the Atlantic County Prosecutor’s Office and Stockton University was formed in order to analyze this information and better understand Atlantic County’s opioid overdose statistics. Results painted a picture of who is using, and showed that quick response to opioid overdoses and prompt administration of the drug naloxone can save lives. Recommendations for the future include collecting additional data points for overdose victims going forward to allow for deeper study, along with increased distribution of naloxone. Such recommendations can positively contribute to future educational and prevention efforts.
The Douglass Century: Transformation of the Women’s College at Rutgers University
Authors: Rotunda Michele
Published: July 2019

Michele Rotunda reviewing The Douglass Century: Transformation of the Women’s College at Rutgers University, by eds. Keyo Denda, Mary Hawkesworth, Fernanda Perrone
Calcium Imaging of Parvalbumin Neurons in the Dorsal Root Ganglia
Authors: Walters Marie C. , Sonner Martha J. , Myers Jessica H. , Ladle David R.
Published: July 2019

We investigated the calcium dynamics of dorsal root ganglion (DRG) neurons using transgenic mice to target expression of the genetically encoded calcium indicator (GECI), GCaMP6s, to a subset of neurons containing parvalbumin (PV), a calcium-binding protein present in proprioceptors and low-threshold mechanoreceptors. This study provides the first analysis of GECI calcium transient parameters from large-diameter DRG neurons. Our approach generated calcium transients of consistent shape and time-course, with quantifiable characteristics. Four parameters of calcium transients were determined to vary independently from each other and thus are likely influenced by different calcium-regulating mechanisms: peak amplitude, rise time (RT), decay time, and recovery time. Pooled analysis of 188 neurons demonstrated unimodal distributions, providing evidence that PV+ DRG neurons regulate calcium similarly as a population despite their differences in size, electrical properties, and functional sensitivities. Calcium transients increased in size with elevated extracellular calcium, longer trains of action potentials, and higher stimulation frequencies. RT and decay time increased with the addition of the selective sarco/endoplasmic reticulum calcium ATPases (SERCA) blocker, thapsigargin (TG), while peak amplitude and recovery time remained the same. When elevating bath pH to 8.8 to block plasma-membrane calcium ATPases (PMCA), all measured parameters significantly increased. These results illustrate that GECI calcium transients provide sufficient resolution to detect changes in electrical activity and intracellular calcium concentration, as well as discern information about the activity of specific subclasses of calcium regulatory mechanisms.
Characterization of Nanoscale Organization of F-Actin in Morphologically Distinct Dendritic SpinesIn VitroUsing Supervised Learning
Authors: Nanguneri Siddharth , Pramod R. T. , Efimova Nadia , Das Debajyoti , Jose Mini , Svitkina Tatyana , Nair Deepak
Published: July 2019

The cytoarchitecture of a neuron is very important in defining morphology and ultrastructure. Although there is a wealth of information on the molecular components that make and regulate these ultrastructures, there is a dearth of understanding of how these changes occur or how they affect neurons in health and disease. Recent advances in nanoscale imaging which resolve cellular structures at the scale of tens of nanometers below the limit of diffraction enable us to understand these structures in fine detail. However, automated analysis of these images is still in its infancy. Towards this goal, attempts have been made to automate the detection and analysis of the cytoskeletal organization of microtubules. To date, evaluation of the nanoscale organization of filamentous actin (F-actin) in neuronal compartments remains challenging. Here, we present an objective paradigm for analysis which adopts supervised learning of nanoscale images of F-actin network in excitatory synapses, obtained by single molecule based super-resolution light microscopy. We have used the proposed analysis to understand the heterogeneity in the organization of F-actin in dendritic spines of primary neuronal cultures from rodents. Our results were validated using ultrastructural data obtained from platinum replica electron microscopy (PREM). The automated analysis approach was used to differentiate the heterogeneity in the nanoscale organization of F-actin in primary neuronal cultures from wild-type (WT) and a transgenic mouse model of Alzheimer’s disease (APPSwe/PS1ΔE9).
Synthesis of hybrid materials based on layered double hydroxides
Authors: Nestroinaia Olga , Ponomarenko Oksana
Published: July 2019

The use of pesticides adversely affects not only the environment, but also human health. A promising direction in solving this problem is to obtain hybrid materials capable of controlled release of pesticides. Layered double hydroxides (LDHs) can act as a matrix. Layered double hydroxides with intercalated glyphosate anions (MgAl-Gly-LDH) were synthesized by different methods: coprecipitation at constant pH (MgAl-Gly-LDH-c), synthesis under hydrothermal conditions (MgAl-Gly-LDH-ht), microwave method (MgAl-Gly-LDH-mw) and rehydration method (MgAl-Gly-LDH-re). All the synthesized samples were analyzed by X-ray phase analysis (XRD), energy dispersive X-ray spectroscopy, scanning electron microscopy, Fourier transform infrared spectroscopy and Raman spectroscopy. It is shown that the methods of co-precipitation and synthesis under hydrothermal conditions are most suitable for the synthesis of hybrid materials. Samples of MgAl-Gly-LDH-ht and MgAl-Gly-LDH-c have a well-crystallized structure, unlike the sample of MgAl-Gly-LDH-re, in which the LDH phase is practically absent.
¿Cómo la herramienta Kahoot motiva a estudiantes repitentes?
Authors: Hernández Ruiz Irene , Gómez Toaza Kerly
Published: July 2019

El presente trabajo da a conocer la experiencia en el uso de la herramienta Kahoot, en dos grupos de repitentes del curso Fundamentos de Informática. Con el fin de servir de insumo para ser utilizado en cursos similares o bien para aumentar la motivación en los estudiantes. La metodología utilizada es un estudio exploratorio, en el cual se les brindó un cuestionario a los 28 estudiantes que aprobaron el curso.
Representaciones de grupos mediante la utilización de diseños súper simples
Authors: Ramírez Jiménez Jeremías
Published: July 2019

En 1997 John Conway publicó un artículo en el cual describía mediante un algoritmo tipo “rompecabezas”, definido sobre el plano proyectivo sobre el cuerpo de tres elementos F3, como obtener el grupo esporádico de Mathieu M12, como un subconjunto especial del grupo simétrico en 13 elementos. En un trabajo más reciente de otros investigadores, se generaliza esta construcción para geometrías distintas de la mencionada antes. En este caso, en lugar del plano proyectivo sobre F3, se utiliza 4-hypergrafos, más precisamente se utiliza diseños 2-(n, 4, L). Estos diseños son conjuntos H = (A, B), donde A es el conjunto de vértices, y B es el conjunto de aristas. El objetivo de este trabajo es estudiar y clasificar bajo isomorfismo los grupos que se obtienen a partir de diseños 2-(n, 4, L) súper simples. Para lograr esto se pretende estudiar la estructura de algunos grupos que se pueden obtener, utilizando software entre otras herramientas. La idea principal es estudiar algunas características tales como transitividad y primitividad entre otras. Este es un trabajo en proceso.
Tecnologias Digitais: importância da inserção no processo de ensino e aprendizagem
Authors: Medeiros Martins de Almeida Caroline , Bandeira Scheunemann Camila Maria , Esquivel Alfaro Marianelly , Azambuja Lopes Letícia , Campos Lopes Paulo Tadeu
Published: July 2019

O ensino de um modo geral tem sofrido inúmeras modificações ao longo dos últimos anos, principalmente em decorrência da introdução massiva do uso das tecnologias digitais no cotidiano das pessoas. Isto levou as instituições de ensino a criarem situações que incorporem essas tecnologias no proceso de ensino e aprendizagem. Nesse contexto, o objetivo desse trabalho é discutir a importância de abordar a inserção das tecnologias digitais no ensino. A utilização das TD nas aulas podem auxiliar os pofessores a tornar o ensino mais contemporâneo e interesante, e fazendo com que os alunos sejam mais responsáveis pelo seu proceso de ensino e aprendizagem.
Propiedades Mecánicas en la Nanoescala
Authors: Sáenz-Arce Giovanni
Published: July 2019

La visualización de superficies a nivel de la nanoescala es posible con microscopios electrónicos y microscopios de sonda local. En este trabajo la utilización de microscopia de fuerza atómica para el estudio de propiedades mecánicas en muestras poliméricas de baja densidad de poliolefina elastómero y vesículas lipídicas. Las técnicas de medición nanomecánicas convencionales están basadas en la recolecta datos formando curvas de fuerza-distancia (F/D) en cada píxel de una imagen, para así calcular las propiedades elásticas de un material como modulo de elasticidad y adhesión.
Implementación de un Sistema de Gestión Académica: un estudio de caso
Authors: Sandoval-Carvajal Maria-Marta , Porras-Piedra Elena
Published: July 2019

Esta investigación hace referencia al caso de estudio cuya pregunta de investigación fue ¿Cómo se desarrolló el proceso de Administración de Proyectos para el logro de la implementación del módulo de Gestión Académica en la Universidad Nacional de CostabRica? . En cuanto a la metodología utilizada se seleccionó el estudio de caso, donde se abarcaron actividades como la definición de unidades de análisis, 2 hipótesis, de igual forma se realizó un diseño y protocolo del caso. Los principales hallazgos se resumen en un contraste con la teoría donde al no existir una cultura, ni un proceso formal de Administración de Proyectos se logró la implementación del Módulo de Gestión Académica, la importancia de la aplicación de actividades de Administración de Proyectos que realmente generaron valor en la búsqueda de beneficios para la organización y finalmente el liderazgo de las directoras del proyecto y área funcional que facilitaron el proceso.
Evaluación de usabilidad para un sitio de comercio electrónico: Desarrollo de una metodología y su aplicación al sitio crgourmetcoffee.com
Authors: Mata Francisco J. , Hernández Irene
Published: July 2019

Se presenta en este trabajo una metodología para evaluar la usabilidad de un sitio web y su aplicación a un sitio de comercio electrónico en desarrollo. Esta metodología utiliza la escala de usabilidad de un sistema (denotada en inglés por las siglas SUS), la cual se justifica con base en la literatura existente. Dicha metodología se aplicó al sitio de comercio electrónico crgourmetcoffee.com. Como resultado de la aplicación de la metodología propuesta, se encontró que la usabilidad del sitio es buena. Asimismo, los comentarios obtenidos para los ítems que recibieron menor evaluación se han utilizado de base para mejorar dicha usabilidad.
Metabolitos sanguíneos y parámetros zootécnicos en lechones destetados a dos edades y con adición de antimicrobianos en el alimento
Authors: Patiño Fonnegra Felipe , Parra Suescún Jaime Eduardo , Herrera Franco Víctor Hugo , López Duque Daniela Maria
Published: July 2019

Se evaluó el efecto de la adición de antimicrobianos sobre parámetros zootécnicos y metabólicos en lechones destetados. Se utilizaron 150 lechones, la mitad destetados a los 21 días y la otra mitad a los 28 días. Se tomaron muestras de sangre y control de peso los días 1, 15 y 30 posdestete y se hicieron controles diarios de temperatura rectal y presencia de diarrea. Los cerdos fueron alimentados con una dieta comercial basal y fueron distribuidos en cinco tratamientos: D1 (dieta basal); D2: adición de bacitracina de zinc; D3: adición de Bacillus subtillis; D4; adición de aceite esencial de orégano, D5: adición de ácidos orgánicos. Se utilizó un diseño completamente al azar en un arreglo de parcelas divididas (cinco dietas, tres repeticiones). Los animales que consumieron la dieta D3 (con probiótico) presentaron el mejor índice de conversión alimenticia, mayor ganancia de peso, menor índice de severidad de diarreas (ISD) y mejores parámetros metabólicos (p<0.05), especialmente con relación a los animales de D1 y D2. Los animales destetados a los 21 días presentaron menores índices zootécnicos, mayor ISD y menores valores metabólicos (p<0.05) en comparación a los animales destetados a los 28 días. Se concluye que la adición de B. subtillis y el destete a los 28 días de edad presentan los mejores resultados y puede ser una alternativa nutricional importante para reemplazar los antibióticos promotores de crecimiento en la alimentación en cerdos.
Composición química y digestibilidad aparente de tubérculos de taro procesados por fermentación en estado sólido (FES) en cerdos de crecimiento
Authors: Caicedo Willan , Moya Carlos , Tapuy Andrea , Caicedo María , Perez Manuel
Published: July 2019

Se determinó la composición química y digestibilidad aparente de nutrientes del fermentado sólido (FES) de tubérculos de taro (Colocasia esculenta (L) Schott) de desecho inoculados con yogur natural en cerdos de crecimiento. Se determinó la materia seca (MS), materia orgánica (MO), proteína bruta (PB), fibra bruta (FB), cenizas, extracto etéreo (EE), extractos libres de nitrógeno (ELN) y energía bruta (EB). Para el estudio de digestibilidad aparente de la MS, MO, PB, FB, ELN y EB se utilizaron 12 cerdos castrados Landrace x Duroc x Pietrain de 25 ± 2 kg distribuidos en tres grupos con cuatro animales cada uno y alimentados con dietas con 0, 10 y 20% de inclusión de FES (T0, T10 y T20, respectivamente). El FES presentó alto contenido de MS (83.33%), MO (93.77%), PB (13.95%), ELN (72.78%) y EB (4162.13 kcal kg MS-1) y bajos niveles de EE (1.50%), FB (5.54%) y cenizas (6.23%). Los mayores coeficientes de digestibilidad de la MS (91.37%), MO (96.36%), PB (87.81%) y FB (54.75%) se obtuvieron en la dieta T20 (p<0.05). No hubo diferencias significativas para la digestibilidad del ELN y EB. En conclusión, los tubérculos de taro procesados por FES e incorporados en la dieta de cerdos en crecimiento al 10 y 20% no afectaron negativamente la digestibilidad aparente de la MS, MO, PB, FB, ELN y EB, lo que garantiza un alimento de adecuadas características nutricionales para los cerdos.
Crianza de animales domésticos como factor de riesgo de fascioliasis humana
Authors: Valderrama P. Aldo , Serrano R. David , Trujillo C. Julio , Merino T. Katty , Serrano O. Karol , Gavidia C. César , Quispe P. William
Published: July 2019

El estudio tuvo como objetivo determinar la asociación de fascioliasis con la crianza de animales, características de la vivienda y consumo de alimentos de niños del distrito de Santa María de Chicmo, Apurímac, Perú. Se tomaron muestras serológicas a 493 niños de 6 a 16 años, de ambos sexos, con el consentimiento informado de sus padres. La prevalencia, determinada mediante la técnica de inmunoblot fue de 5.3% (IC95%=3.2%-7.4%; 26/493). El análisis univariado demostró que la crianza de bovinos y gatos, así como la crianza de tres o más cerdos fueron factores asociados a fascioliasis. La crianza de más de cinco ovinos configuró un factor de protección. La fascioliasis en niños no estuvo asociada a las características de las viviendas ni al consumo de alimentos. Se concluye que el distrito de Santa María de Chicmo es mesoendémico para fascioliasis en niños, y que la crianza de algunas especies de animales domésticos implica riesgo de fascioliasis humana.
Caracterización de la prevalencia de hallazgos compatibles con hidatidosis y fertilidad de quistes hidatídicos en bovinos de una planta faenadora de la cuidad de Curicó, Chile
Authors: Cruzat S. Antonio , Silva G. Alex , Morales M. Pamela , Carmona H. Hortensia
Published: July 2019

En el presente estudio se determinó la prevalencia de hallazgos compatibles con hidatidosis y fertilidad de quistes hidatídicos en bovinos de una planta faenadora en Curicó, Chile. Se analizaron pulmones, hígados, corazones, bazos y riñones de 218 animales faenados en abril de 2017. Se determinó una prevalencia de hallazgos compatibles con hidatidosis de 12.4%, donde el 74.1% de los animales afectados presentó quistes pulmonares, 11.1% quistes hepáticos y 14.8% de ambos tipos. Los animales añosos concentraron la mayor cantidad de hallazgos. En muestras del líquido hidatídico de quistes uniloculares se obtuvo una fertilidad de 6.25%. La prevalencia de hallazgos encontrada fue inferior a los datos descritos en estudios nacionales.
Características de los perros y gatos bajo control reproductivo quirúrgico registrados en la Municipalidad de Los Olivos, Lima, Perú. Periodo 2015-2016
Authors: Rojas V. Priscila , León C. Daphne , Falcón P. Néstor
Published: July 2019

El objetivo del estudio fue describir las características demográficas de la población de animales de compañía que fueron sometidos a control reproductivo quirúrgico en la Municipalidad de Los Olivos (Lima, Perú) en el periodo 2015-2016. Se revisaron los registros de la Clínica Veterinaria Municipal de Los Olivos recolectando información de las variables edad, sexo, especie y dirección del propietario. La información fue analizada mediante estadística descriptiva. Se obtuvo 140 fichas de perros y 155 de gatos esterilizados. La media de edad de los perros fue de 2.1 ± 1.5 (rango: 6 meses a 7 años) y de los gatos fue de 1.2 ± 0.8 (rango: 6 meses a 4 años). El mayor porcentaje de esterilizaciones correspondió a las hembras en ambas especies (90.7% en perros y 89.0% en gatos) y de raza mestiza (93.6% en perros y 99.4% en gatos). El área de influencia de la Clínica Veterinaria Municipal de Los Olivos tuvo un radio de hasta 8.26 km. Se espera que la información sea de utilidad para determinar la población objetivo de futuras campañas de esterilización, así como planificar necesidades logísticas que se han de requerir.
Variación ontogenética y dimorfismo sexual en Platalina genovensium (Chiroptera: Phyllostomidae)
Authors: Ruelas Dennisse
Published: July 2019

La variación por edad y el dimorfismo sexual en murciélagos son aspectos frecuentemente estudiados; sin embargo, esta información no está disponible para Platalina genovensium, una especie de murciélago amenazado que habita ecosistemas secos entre Perú y Chile. En este estudio, se presentan los primeros datos sobre su caracterización en clases de edad y un análisis de dimorfismo sexual. Se analizaron 31 especímenes entre juveniles y adultos para evaluar la ontogenia. Luego, usando solo especímenes adultos se evaluó la presencia de dimorfismo sexual mediante análisis estadísticos y multivariados usando una variable externa y 14 cráneo-dentales. Como resultado, se presenta caracterizaciones de los estadíos juvenil (clase I) y adulto (clases IV y V), además del cráneo de un feto. Con respecto al dimorfismo sexual, se encontró que la longitud del antebrazo entre hembras y machos no presenta diferencias estadísticamente soportadas mientras que, a nivel cráneo-dental, el ancho de la rama mandibular fue la principal variable dimórfica. Se sugiere que las diferencias reportadas entre especímenes juveniles y adultos y entre hembras y machos sean entendidas desde una perspectiva evolutiva y de adaptación y no solo ontogenéticamente.
Crianza de Michaelus phoenissa (Hewitson) (Lepidoptera : Lycaenidae) sobre Senna alata (L.) Roxb. (Fabaceae) en Perú
Authors: Faynel Christophe
Published: July 2019

En la estación científica de Villa Carmen, situada cerca de Pillcopata, Cusco, Perú (S 12°53.687' - W 71°24.232', 533 m), encontramos orugas de Michaelus phoenissa (Hewitson, 1867) (Lycaenidae), consumiendo flores de Senna alata (L.) Roxb. (Fabaceae). La mayoría de las orugas se encontraban en el último estadio (entre 1 y 1.5 cm de longitud), no visibles a primera vista, ya que se alojaban en las flores no abiertas. La crianza permitió obtener cuatro adultos, dos hembras y dos machos y ningún parasitoide. Se compara las plantas hospederas de M. phoenissa con otras especies hospederas del genero de Michaelus Nicolay, 1979.
Diversidad de mamíferos en el bosque montano de Carpish, Huánuco, Perú
Authors: Pacheco Víctor , Noblecilla Maggie
Published: July 2019

A pesar de la alta diversidad de mamíferos conocidos para el Perú, son pocos los estudios en las yungas centrales, lo que no permite un adecuado conocimiento de su diversidad. Aquí se da a conocer los resultados de una evaluación de la diversidad de mamíferos de Carpish, Huánuco, un bosque montano en estado crítico de conservación. El estudio se realizó entre 2001 y 2002 con cinco expediciones en las localidades de Carpish de Mayobamba (2730 – 3080 m) y San Pedro de Carpish (1780 – 2400 m). Se emplearon métodos de captura, avistamientos y entrevistas, los que representan un esfuerzo de 28500 trampas noche y 190 redes noche. Registramos 35 especies de mamíferos en el área de estudio. Los órdenes más diversos fueron los murciélagos y roedores (74.3 %), estos incluyen cuatro especies endémicas para el país, cuatro especies en alguna categoría de conservación y el primer registro de la marmosita grácil Gracilinanus aceramarcae para Huánuco. La riqueza y los índices de diversidad (H' y Simpson) para roedores no muestran correlación significativa con respecto a la elevación. El roedor Thomasomys ischyrus y el murciélago Anoura aequatoris fueron las especies con mayor abundancia relativa. Nuestros registros, más los de la literatura y la revisión de colecciones científicas, sustentan la ocurrencia de 45 especies de mamíferos en el bosque de Carpish. Esta riqueza de especies, los endemismos y la acelerada pérdida de bosque son base para recomendar el establecimiento de un área de conservación que garantice la protección de los bosques montanos de Carpish.
Analyzing Task Difficulty in a Bebras Contest Using Cuttle
Authors: van der VEGT Willem , SCHRIJVERS Eljakim
Published: July 2019

Predicting the difficulty level of a task on the concepts of computer science or computational thinking, like in the Bebras Challenge, proves to be really hard. But the announced difficulty level is needed in the contest format used in many local challenges. The Dutch contest system Cuttle has a new module for analysis. This is applied to one specific contest in order to find parameters explaining task difficulty. Using quantitative methods we were able to confirm a relation between answer types and difficulty and a tendency that tasks on data, data structures and representation are better answered than tasks on algorithms and programming.
The Role of Systemic Functional Grammar in the Expansion of Nominal Groups
Authors: Nieto-Cruz María Claudia
Published: July 2019

This study presents the expansion of nominal groups in a systemic functional grammar class of an English language teacher program in 2016 at a Colombian public university. The participants were six student teachers. Nominal groups were first considered in a document written by the students before being exposed to the principles of systemic functional grammar and then in a revised version after the exposure to it. The study shows initial improvements in the enlargement of nominal groups between the two written productions and provides insights into the enormous potential for structural and meaningful expansion and the complexity of nominal groups. The gained awareness may become a cognitive framework for students to produce complex nominal groups in academic productions demanded in their studies and in the exercise of their professional practice.
Helping Teachers Promote Self-Directed Language Learning: Report of a Fulbright Scholar in Ecuador
Authors: Rubin Joan
Published: July 2019

Since Ecuador has determined that it wants to be fully bilingual in ten years, this paper describes the experience of a Fulbright Scholar at a university Language Center in Quito; one helping language teachers improve the language learning skills of their students. The theoretical framework for this work comes from Learner Self-Management (LSM) or Self-Regulation. The scholar details her experience teaching LSM concepts such as SMART goal setting, Task Analysis, Cognitive and Affective Strategies. She provides descriptions of what these language teachers consider the roles of the teacher and that of the learner to be and also what their most critical teaching issues were. She also briefly elaborates the history of the development of learner strategies and the value of metacognitive strategies and knowledge.
Multimodal Texts in Chilean English Teaching Education: Experiences From Educators and Pre-Service Teachers
Authors: Farías Miguel , Véliz Leonardo
Published: July 2019

Drawing on 10 pedagogical standards issued by the Chilean Ministry of Education, three dealing with multimodality, we, in this research, examined English language pre-service teachers’ and educators’ approaches to the use of multimodal texts. Data were gathered through two online surveys that explored the use of multimodal texts by teacher educators and pre-service teachers. Results indicate that educators were familiar with the standards and multimodality when teaching reading and writing, but lack of resources, preparation, and time prevents them from working with multimodal texts. Candidates read printed and digital newspapers, novels, and magazines outside university, but rarely use them academically. They extensively use social media, even for academic purposes. There is a mismatch between the use of multimodal texts by teacher candidates and teacher educators.