bluuebunny/crossref_metadata_2025 huggingface dataset:
Rhetorical structure in the problem statement section of Iranian postgraduate students' research projects
Authors: Tarvirdizdeh Zahra , Nimehchisalem Vahid
Published: May 2021

This paper reports the results of a study that investigated the structure of the Problem Statement (PS) section, following Swales’ (1990) Create-A-Research-Space (CARS) model as the first objective. Move analysis was used to analyze the rhetorical moves of the PS sections of the research projects. The second objective was the identification of the specific types of linguistic features associated with each move and step based on Pho’s (2013) classification. Following Pho (2013), the linguistic features as important signals of moves were identified.  For this purpose, 30 research projects written by Iranian master’s students were purposively selected. The findings showed that the obligatory moves were Moves 1 ‘Establishing a Territory’ and 2 ‘Establishing a Niche’. All moves and steps were identified linguistically although their sequence and arrangement were not the same as what was anticipated by the model. Although the cyclic and embedded moves were defined in the rhetorical structure of the PSs, most of them were anomalous or ill-structured. The study has theoretical contributions, the most significant one of which is that the CARS model is applicable to define and analyze the rhetorical structure of the PS section.
The EFL pre-service teachers' experiences and challenges in designing teaching materials using TPACK framework
Authors: Syamdianita Syamdianita , Cahyono Bambang Yudi
Published: May 2021

This study aimed to explore the EFL (English as a Foreign Language) pre-service teachers’ experiences in designing and implementing teaching materials by using the Technological Pedagogical Content Knowledge (TPACK) framework through the Learning by Design (LBD) approach. It also identified the challenges faced by the pre-service teachers in designing and implementing the teaching materials. This study involved EFL pre-service teachers in the Province of East Kalimantan, Indonesia. Semi-structured interviews and document analysis were used to gather data needed to accomplish the research objectives. The results of the study showed that the LBD approach was found to be beneficial for the pre-service teachers in designing and implementing teaching materials by using the TPACK framework. The LBD approach helped the pre-service teachers in combining the technological tools and applications with teaching. The EFL pre-service teachers believed that the process that they experienced, enabled them to have a positive change in designing the teaching materials. However, some challenges were still faced by the EFL pre-service teachers in designing and implementing the teaching materials. These included the EFL pre-service teachers’ low level of computer skill, their lack of proficiency in content knowledge, and the availability of media. Moreover, the challenges they faced did not make them afraid of having more experience in LBD activities to promote their abilities in designing teaching materials and in teaching using the materials.
Contemplating COVID-19 through disease and death in three short stories by Edgar Allan Poe
Authors: Dewi Novita
Published: May 2021

Wort-case scenarios depicted in literary works may function to mourn and warn people about the real situation, such as the spread of COVID-19 that has altered worldwide life drastically. This study offers a reflection on the current pandemic time through a close reading of selected American classic literary works. The imagination of fear, isolation, and mask-wearing in Edgar Allan Poe’s short stories is resonant with the new expressions of the COVID-19 pandemic. Three short stories by Poe, i.e., ‘The Masque of the Red Death’, ‘The Cask of Amontillado’, and ‘The Sphinx’ are chosen for examination using the thematic analysis method. Repeated reading of the short stories shows that parallels can be drawn between these stories and today’s phenomenon about anxiety, social restriction, and health protocols. What can be implied from the analysis are as follows: (1) Fear of the disease results in the characters’ added distress, (2) The characters’ aberrant behaviour as to overprotect themselves is exacerbated by the dreadful situation, and (3) Poe’s obsession with dread and death to shock the readers can be historically traced through his own inner predicaments, ill-health, and the 1832 Cholera contagion. In conclusion, the findings resonate with the COVID-19 epidemic’s upshots.
Cultura y turismo del vino en la revista En Viaje (Chile, 1933-1973)
Authors: Lacoste Pablo , Castro Pino Jhonathan Bastián
Published: May 2021

Objetivo: conocer el tratamiento que el magazine especializado en turismo En Viaje brindó a la cultura del vino y el enoturismo en Chile (1933-1973). Metodología: se examinaron todos los números publicados (470), incluyendo textos e ilustraciones. Resultado: Chile produjo un temprano proceso de valoración de la cultura del vino por su significado patrimonial, identitario y territorial. Limitaciones: la revista no logró cubrir las fiestas vitivinícolas locales. Conclusiones: el carácter estatal permitió que la revista actuara con independencia de los intereses económicos de la industria. Los editores y principalmente los dibujantes de En Viaje se adelantaron al desarrollo teórico del enoturismo como instrumento de valoración del patrimonio y los paisajes culturales.
Gestión por procesos en la seguridad alimentaria del Estado de Tabasco.
Authors: Martínez-Valdés Martín Gerardo
Published: May 2021

Objetivo: determinar, mediante la gestión por procesos, los elementos que influyen en las dimensiones de seguridad alimentaria, para establecer estrategias de atención en las regiones económicas del estado de Tabasco, Metodología: se realizó un análisis documental y descriptivo, gestión por procesos en los aspectos del estado, se configuró es estudio por medio de esquemas en la identificación de problemas y el desarrollo de categorías con actores clave, árbol de decisiones al estimar procesos de atención, limitaciones, oportunidades de acción y representar la realidad. Resultados: se considera las acciones de intervención de los actores clave, sus relaciones, propuesta de factores de atención, sus limitaciones, responsabilidades y esquemas de relaciones en el desarrollo regional sostenible. Limitaciones: generar grupos interinstitucionales, programación de recursos, acciones conjuntas, plan integral de intervención. Conclusiones: el estudio propone alineación concreta de actores y acciones en una seguridad alimentaria factible y puntal en las regiones del estado.
Coinfecção por hemoparasitos em cão diagnosticado com linfoma: relato de caso
Authors: Ozorio Wanderla Francisco , Gaudêncio Fabrício Nascimento
Published: May 2021

Introdução: Hepatozoonose e erliquiose são doenças vetoriais comuns no Brasil em função da distribuição cosmopolita do parasito transmissor Rhipicephalus sanguineus. Estas enfermidades podem acometer mais facilmente animais imunossuprimidos em função de comorbidades. Objetivo: O presente trabalho teve como objetivo relatar um caso de coinfecção por Hepatozoon canis e bactéria Anaplasmataceae em cão com linfoma. Relato de caso: Ao primeiro atendimento, o animal apresentava temperatura de 38,5 °C, linfadenomegalia em região cervical, secreção ocular e dificuldade respiratória. O diagnóstico de linfoma foi concluído através da histopatologia. Observou-se coinfecção por Hepatozoon spp. e bactéria Anaplasmataceae no esfregaço de capa leucocitária em um exame hematológico realizado antes de iniciar a quimioterapia. O paciente foi medicado com dipropionato de imidocarb e encaminhado para prosseguimento do tratamento antineoplásico por outro médico veterinário, porém vindo a óbito após algumas semanas de tratamento em função do agravamento da doença tumoral. Conclusão: O presente caso mostrou a importância do uso do hemograma e da pesquisa em capa leucocitária para diagnóstico e acompanhamento de hemoparasitose, além de ressaltar a importância da realização desses exames em função de comorbidades imunossupressoras.
One Touse, Two Tice, Three...What? How Children Learn Irregular Plurals Using Conventionality
Authors: McCulloch Gretchen
Published: May 2021

Most of the time, the rules that change a word's meaning are fairly constant (e.g., add –s to make a noun plural); however, they do not always apply. But how do young word learners even consider the possibility that "feet" is the plural of "foot," when the word "foots" should do equally well? This study suggests that children may learn an irregular novel plural form of a noun better from the person who created an object, than from someone who only found it. To do this, we played a naming game with 3 and 4 year old children, where we taught them regular and irregular plurals for unfamiliar objects, and evaluated whether the group of children who were told that the experimenter had made the objects learned the plurals more than those who were told that the experimenter had found them. Although hampered by a small sample, preliminary results showed that 4‐year‐olds learned irregulars slightly more often in the made condition than the found condition. The younger group did not produce irregulars as readily, and was not affected by whether the novel toy was made or found.
Temperature Sensitivity of Soil Greenhouse Gas Production in Three High‐Arctic Plant Community Types at Cape Bounty, Nunavut
Authors: Fisher Evangeline
Published: May 2021

Enhanced precipitation and higher temperatures are expected in the Arctic as the result of future climatic warming. To understand future contributions of high‐arctic ecosystems to the climate system, we need to understand the feedbacks between climate and greenhouse gas production, and how they might vary between plant community types distributed along soil moisture gradients. We incubated intact soil cores in the laboratory to explore the temperature sensitivity of soil greenhouse gas (CO2, CH4, N2O) production across the three main plant community types of Cape Bounty, Nunavut: polar desert, mesic tundra and wet sedge. Two sets of cores (0‐10 cm mineral soil) were incubated in the laboratory at 4, 8, and 12°C for one month. We also measured plant community differences in soil thermal regimes for one year. Mean field temperatures were highest in the polar desert during the summer months, while temperatures in the mesic tundra were lowest during this time. In the winter, soil temperatures were lowest in the polar desert and highest in the wet sedge communities. Initial incubation results demonstrate Q10 values for CO2 production ranging from 2.18 in wet sedge to 8.67 in polar desert soils. We observed a Q10 of 4.03 for CH4 output in mesic tundra soils and a Q10 of 16.42 for N2O output in wet sedge soils. Our results suggest that use of single Q10 values to predict future greenhouse gas emissions from high‐arctic ecosystems would likely underestimate the contribution of these ecosystems to the global climate system in a warmer climate.
Conditioning Factors in the Usage of "Conspiracy Theory"
Authors: Snefjella Bryor
Published: May 2021

This study attempts to create a clear definition of the term "conspiracy theory" using a survey method. The term sees currency in media and social settings, especially with the proliferation of the internet and events such as 9/11, but there is not an adequate understanding of how the term is used. Queen's students were surveyed to determine conditioning factors in their usage of the term. The students were presented with a set of fifty hypothetical claims that a certain event had occurred or is occurring, and then were asked whether the claim is a "conspiracy theory" to them or not. Fifty‐nine students were surveyed. The analysis of the resulting data reveals that collectivity is not a conditioning factor for usage; the actions of groups and individuals were treated almost identically, with both consistently deemed "conspiracy theories" in the data. Specific factors, such as the presence of an assassination or aliens, were identified. Hypothetical claims designed to be "strange" also scored consistently high. Gender was ruled out as a factor, as was the nation implicated in the claim, either Canada or the United States. The results show that the term has specific factors which condition usage. Also, the unimportance of collectivity as a factor contradicts most academic definitions of the term. What this study might have revealed is that there is a vernacular, popular usage that differs from the academic usage. 27
NA PANDEMIA BRASILEIRA, TÁ TENDO BONECO DE NEVE NO NORTE E NORDESTE DO PAÍS! PÓS-VERDADE EM DEBATE
Authors: Teixeira Marcelle Medeiros , Couto Junior Dilton Ribeiro
Published: May 2021

Este texto é parte dos resultados de pesquisa de mestrado em andamento que discute as fake news e o fenômeno da pós-verdade no contexto da COVID-19 no Brasil. Analisamos o perigo da desinformação e de seu uso como uma estratégia política por Eduardo Pazuello, que em junho de 2020, na condição de ministro interino da Saúde, justificou o número considerável de óbitos nas Regiões Norte e Nordeste do Brasil argumentando que o clima nessas regiões estaria ligado ao inverno do Hemisfério Norte. Adotamos o método cartográfico para acompanhar a disseminação de memes nas redes sociais Twitter e Facebook e comentários postados na página oficial do Ministério da Saúde no Facebook em resposta ao pronunciamento de Pazuello, seja em apoio, seja em repúdio. Os memes e comentários analisados evidenciam que existem grupos de internautas que apoiam Pazuello, enquanto outras postagens ridicularizam a tentativa do então ministro interino de redefinir a Linha do Equador como tentativa de justificar o alto número de óbitos por COVID-19 no Norte e Nordeste do país. Em tempos de pandemia, consideramos imprescindível colocar em prática uma educação em/para a rede, desconstruindo esse tipo de fala enunciada por Pazuello, que busca justificar com inverdades o caos social, evidenciando a ineficiência de políticas públicas para enfrentar a pandemia da COVID-19 no Brasil.
ISOLAMENTO CAPITAL: UMA PONTE ENTRE O MEDIEVO E A CONTEMPORANEIDADE EM UM PROJETO DRAMATÚRGICO SOBRE TEMPOS PANDÊMICOS
Authors: Silva Tiago , Silva Cristina Ennes da
Published: May 2021

Isolamento Capital é o nome de um projeto dramatúrgico desenvolvido em 2020, no qual sete atrizes produziram sete diferentes vídeo-performances, utilizando-se da simbologia própria aos sete pecados capitais durante o medievo para refletir acerca da pandemia de covid-19 que tomou conta do mundo na contemporaneidade. Neste sentido, interessa-nos identificar e analisar a apropriação artística de elementos simbólicos medievais que permeiam o projeto, como forma de estabelecer uma análise sobre as interrelações entre uma criação cênica e o imaginário social relativo ao pecado durante a Idade Média, refletindo, assim, sobre o isolamento social em tempos pandêmicos.
Induction Motor Speed Control with Solar Cell Using MPPT Algorithm by Incremental Conductance Method
Authors: Mahmmoud Omer N , Gaeid Khalaf S , Nashi Assad F , Siddiqui Khadim Moin
Published: May 2021

In the world, optimizing energy and finding new sources is important because of the increased consumption that occurred in all aspects of life. Nowadays, the world suffers of the reduction in the fossil fuel continuously. One solution to this problem is the sun and the photovoltaic (PV) cell. To get the benefits of PV, the DC/DC and DC/AC converters and inverters are combined in one set to get the better usage of these capabilities. Induction motor (IM) is the horsepower in the industry and will be considered the load in this work. The DC/DC Converter is used for control of IM speed in combination with maximum power point tracking (MPPT). Temperature and radiation change constantly over time, and the maximum energy should be tracked. This follow-up was performed using Incremental Conductance method (INC). INC is control buck-boost duty cycle converter. We get the best performance in INC technology and have less effect on the system. This algorithm uses INC of the MPPT to control half of horse power of IM. The sine pulse width modulation technique (SPWM) is used with three level inverters. Simulation on the Three-phase proves the efficiency of the suggested technique.
Modelling, Optimization and Green Metrics Evaluation of Bio-Catalytic Synthesis of Biodiesel
Authors: Owolabi Rasheed U , Usman Mohammed A , Anuoluwapo Adefunmilayo D , Oguamanam Onyekachi P.
Published: May 2021

The response surface methodology (RSM) was adopted in ths study to evaluate the influence, interplay and interaction of various process variables on the biodiesel yield using methanol and castor oil as feedstocks in the presence of bovine bones as bio-catalyst.Twenty experimental runs were designed using central composite design (CCD). RSM statistical model of second order was developed. Analysis of variance (ANOVA) tests were performed on the model to find the relative influence of the process variables. An optimum yield of 95.12% was obtained at 60 0C reaction temperature, 120 minutes reaction time, molar to oil ratio 6:1, catalyst concentration of 10 % w and a stirring rate of 900 rpm. The experimental conditions under which biodiesel was synthesized in this study was compared with those of previous studies .It can therefore be inferred that , the conditions herein is competing with prior established conditions. The biodiesel was found to possess fuel properties that fall within acceptable limits and green metrics estimated showed compliance of the process with the diictates of green and sustainable chemistry.
CONDITIONAL DEFERRAL (AND WITHDRAWAL) OF CRIMINAL PROSECUTION FROM NATIONAL AND COMPARATIVE LEGAL PERSPECTIVE
Authors: Burić Zoran , Pleić Marija , Radić Ivana
Published: May 2021

Conditional deferral (and withdrawal) of criminal prosecution is a typical institution of negotiated criminal justice. It is usually applied in relation to less serious criminal offences with the aim to relieve the court system workload and humanise the treatment of the offender. This institution was introduced into the Croatian criminal justice system more than 20 years ago. Despite such a long presence within the system, it has never acquired the status of an important and widely applied institution. Quite the contrary, its application in practice is quite scarce. In order to identify possible reasons for this at the normative level, the authors have undertaken a comparative legal analysis of said institution. Main characteristics of conditional deferral (and withdrawal) of criminal prosecution in Croatia have been compared with the main characteristics of identical or equivalent institutions in five other jurisdictions: Austria, Germany, Italy, England, and France. Special attention has been devoted to five highlighted issues: the goal(s) of the institution, the offences in relation to which it may be applied, the role of the court, the rights of the defendant, and the position of the victim.
RULE OF LAW CONCERNS IN THE CROATIAN PENAL ORDER PROCEDURE LINKED TO DEPRIVATION OF LIBERTY, JUDICIAL CONTROL, ADMISSIBILITY OF EVIDENCE AND PROCEDURAL RIGHTS
Authors: Đurđevć Zlata , Bonačić Marin , Pleić Marija
Published: May 2021

The paper analyses the mechanism of a penal order as a consensual procedure aimed at relieving the criminal justice system in cases of minor criminal offences by avoiding a trial. The study aims to analyse the Croatian normative framework and case law in order to determine the distinctive traits of the penal order procedure in a comparative legal context, disclose the procedural reality and detect its shortcomings. The paper focuses on the substantive and procedural requirements for the issuing of a penal order, the judicial control of the indictment requesting a penal order, the defence rights in the proceedings before the issuing of a penal order and the position of the victim. These key elements were researched through normative, theoretical and comparative analysis of German, Austrian, Italian and French law and conclusions were tested in the case law of the Municipal Criminal Court in Zagreb and the Municipal Court in Split. The results of the research reveal that the expansion of the application of the penal order to graver offences punishable by five years of imprisonment and to more severe penalties such as deprivation of liberty, as well as deviations from some fundamental criminal procedural principles inherent in the penal order procedure, raise the question of providing adequate procedural guarantees for the defendant and the victim.
Coronavírus: consequências da pandemia no ensino superior
Authors: Silva Michelli Domingos da , Soares Glória Cristina Araújo , Cardoso Carla Mara Leandro , Guerreiro Thayanne Sa Bezerra , Guimarães Cyntia Costa , Chicre Giovanna Ribas , Siqueira Luciano Rodrigues Mendes de , Seffair Rebecca Pereira , Domingues Nathany do Amaral , Trindade Francilene de França
Published: May 2021

Objetivo: Analisar e descrever através da literatura sobre as consequências do coronavírus no ensino superior em tempos de pandemia. Métodos: Trata-se de uma pesquisa exploratória do tipo revisão integrativa. As bases de dados utilizadas foram: Google Acadêmico, Ministério da Saúde (MS), e Scientific Electronic Library Online (SCIELO). Como critério de inclusão foi estabelecido os artigos publicados em português e inglês, entre 2019 a 2021 e critérios de exclusão foram:  Artigos cujos assuntos, títulos e objetivos não se encaixassem ao proposto, artigos repetitivos, em outros idiomas. Resultados: O ano de 2020 foi atípico para todos. A pandemia de covid-19 acarretou uma série de consequências que afetam diversas áreas da vida, sendo uma delas a educação. Os alunos universitários em geral experimentaram o forte impacto da pandemia, e tiveram que recorrer a outras alternativas de aprendizado, em meio a anúncios e adiamentos de uma reabertura das aulas presenciais. Considerações Finais: As consequências da pandemia afetaram as atividades sociais, económicas e educativas e trouxeram consigo as dificuldades existentes.  Ainda assim, muitos alunos que são desprovidos de recursos financeiros e tecnológicos não têm acesso as aulas disponibilizadas nas plataformas.
Monitoring Long-Term Cardiovascular Risk from Estrogen Use in Transgender Women - Evidence Update for Clinicians
Authors:   Patient-Centered Outcomes Research Institute (PCORI)
Published: May 2021

A PCORI-funded study provides new information for primary care clinicians about the need to monitor long-term cardiovascular risks in transgender women receiving hormone therapy. Approximately 1.4 million transgender people live in the United States. Many transgender women pursue medical transition with hormone therapy including estrogen to align their bodies with their female gender identity. Evidence suggests that medical transition confers significant psychological benefits including reduced depression, anxiety, and suicidality and improved quality of life. However, the risks of using estrogen, including cardiovascular risks, are not well understood. Recent evidence on these risks can help inform decisions and improve care for transgender women who are currently using or formerly used estrogen.
Prostate Cancer: Evidence Update for Clinicians
Authors:   Patient-Centered Outcomes Research Institute (PCORI)
Published: May 2021

Given the evidence of high 5- and 10-year survivorship rates for localized prostate cancer, the effect of treatment on symptom-related quality of life is an important consideration for men choosing among available treatment options. Two PCORI-funded studies published in the March 21, 2017 issue of JAMA compare the impact of current treatments on symptom-related quality of life for men with localized prostate cancer. Quality of life scores refer to symptoms, how much men were bothered by symptoms, or a combination of the two. The studies looked at observed outcomes from a combined total of 3,600 men for periods of two and three years following treatment. This evidence offers information that can help patients make treatment decisions.
Evidence Update: Antipsychotics for Children with Hyperactivity or Disruptive Disorders
Authors:   Patient-Centered Outcomes Research Institute (PCORI)
Published: May 2021

New evidence can help clinicians, caretakers, and others weigh the benefits and harms of antipsychotic treatment for children and adolescents.
Evidence Update for Clinicians: Treatment Options for People with Posttraumatic Stress Disorder (PTSD)
Authors:   Patient-Centered Outcomes Research Institute (PCORI)
Published: May 2021

A recent update of a systematic review, supported by PCORI through a research partnership with AHRQ, informs clinicians on psychological and pharmacological treatments for PTSD in adults. The review reports on 207 articles from 193 studies published before 2018, updating a 2013 review. Posttraumatic stress disorder (PTSD) affects about 6% of US adults. It is more common in groups including women, younger people, and those who did not complete high school or who have lower incomes. PTSD can affect military personnel serving in combat, but it may also develop after a person experiences or witnesses intimate partner violence, sexual violence, physical abuse or assault, a motor vehicle crash, natural disaster, violent crime, or other traumatic event.
Benchmarking London dispersion corrected density functional theory for noncovalent ion-pi interactions
Authors: Spicher Sebastian , Caldeweyher Eike , Hansen Andreas , Grimme Stefan
Published: May 2021

The strongly attractive noncovalent interactions of charged atoms or molecules with p-systems are important binding motifs in many chemical and biological systems. These so-called ion-pi interactions play a major role in enzymes, molecular recognition, and for the structure of proteins. In this work, a molecular test set termed IONPI19 is compiled for inter- and intramolecular ion-pi interactions, which is well balanced between anionic and cationic systems. The IONPI19 set includes interaction energies of significantly larger molecules (up to 133 atoms) than in other ion-pi test sets and covers a broad range of binding motifs. Accurate (local) coupled cluster values are provided as reference. Overall, 18 density functional approximations, including seven (meta-)GGAs, seven hybrid functionals, and four double hybrid functionals combined with three different London dispersion corrections, are benchmarked for interaction energies. DFT results are further compared to wave function based methods such as MP2 and dispersion corrected Hartree-Fock. Also the performanceof semiempirical QM methods such as the GFNn-xTB and PMx family of methods is tested. It is shown that dispersion-uncorrected DFT underestimates ion-pi interactions significantly, even though electrostatic interactions dominate the overall binding. Accordingly, the new charge dependent D4 dispersion model is found to be consistently better than the standard D3 correction. Furthermore, the functional performance trend along Jacob’s ladder is generally obeyed and the reduction of the self-interaction error leads to an improvement of (double) hybrid functionals over (meta-)GGAs, even though the effect of the SIE is smaller than expected. Overall, the double hybrids PWPB95-D4/QZ and revDSD-PBEP86-D4/QZ turned out to be the most reliable among all assessed methods in predicting ion-pi interactions, which opens up new perspectives for systems where coupled cluster calculations are no longer computationally feasible.
MAYGEN - an Open-Source Chemical Structure Generator for Constitutional Isomers Based on the Orderly Generation Principle
Authors: Yirik Mehmet Aziz , Sorokina Maria , Steinbeck Christoph
Published: May 2021

The generation of constitutional isomer chemical spaces has been a subject of cheminformatics since the early 1960s, with applications in structure elucidation and elsewhere. In order to perform such a generation efficiently, exhaustively and isomorphism-free, the structure generator needs to ensure the building of canonical graphs already during the generation step and not by subsequent filtering.Here we present MAYGEN, an open-source, pure-Java development of a constitutional isomer molecular generator. The principles of MAYGEN’s architecture and algorithm are outlined and the software is benchmarked against the state-of-the-art, but closed-source solution MOLGEN, as well as against the best open-source solution OMG. MAYGEN outperforms OMG by an order of magnitude and gets close to and occasionally outperforms MOLGEN in performance.
Organoboron Mediated Homolytic Aromatic Substitution of N-Methoxypyridinium Salts
Authors: Rieder Samuel , Meléndez Camilo , Mulliri Kleni , Renaud Philippe
Published: May 2021

The monoalkylation of N-methoxypyridinium salts with alkyl radicals generated from alkenes (via hydroboration with catecholborane), alkyl iodides (via iodine atom transfer) and xanthates is reported. The reaction proceeds under neutral conditions since no acid is needed to activate the heterocycle and does not require the use of an external oxidant. A rate constant for the addition of a primary radical to N-methoxylepidinium >107 M–1 s–1 was experimentally determined. This rate constant is more than one order of magnitude larger than the one measured for the addition of primary alkyl radical to protonated lepidine demonstrating the remarkable reactivity of methoxypyridinium salts towards radicals. The reaction could be extended to a three component carbopyridinylation of electron rich alkenes including enol esters, enol ethers and enamides.
Clip-off Chemistry: Synthesis by Programmed Disassembly of Reticular Materials
Authors: Yang Yunhui , Broto-Ribas Anna , Ortín-Rubio Borja , Imaz Inhar , Gándara Felipe , carne-sanchez arnau , Guillerm Vincent , Jurado Sergio , Busqué Félix , Juanhuix Judith , Maspoch Daniel
Published: May 2021

Bond-breaking is an essential process in natural and synthetic chemical transformations. Accordingly, the ability for researchers to strategically dictate which bonds in a given system are broken translates to greater synthetic control, as historically evidenced in fields such as organic synthesis. Here, we report extending the concept of selective bond-breaking to reticular materials, in a new synthetic approach that we call Clip-off Chemistry. We show that bond-breaking in these structures can be controlled at the molecular level; is periodic, quantitative and selective; is effective in reactions performed in either solid or liquid phases; and can occur in a single-crystal-to-single crystal fashion involving the entire bulk precursor sample. Clip-off Chemistry opens the door to programmed disassembly of reticular materials and thus, to the design and synthesis of new molecules and materials.
A Unified Hamiltonian Formalism of Jahn-Teller and Pseudo-Jahn-Teller Problems in Axial Symmetries
Authors: Brown James , Lang Robert , Zeng Tao
Published: May 2021

A formalism for expansions of all Jahn-Teller and pseudo-Jahn-Teller Hamiltonian operators in all axial symmetries is presented. The formalism provides Hamiltonian expansions up to arbitrarily high order and including an arbitrary number of vibra?tional modes, which are of arbitrary types. It consists of three equations and two tables. The formalism is user-friendly since it can be used without understanding its derivation. An example of E00 3 ⊗ e 0 1 Jahn-Teller interaction of cycloheptatrienyl cation is used to demonstrate the correctness of the formalism. A Python program is devel?oped to automate the generation of Hamiltonian expansions for all axial Jahn-Teller and pseodo-Jahn-Teller problems, , and interface the expansions to quantum dynamics simulation program. This is the first unified Hamiltonian formalism for axial Jahn?Teller and pseudo-Jahn-Teller problems. And it is the only one.
A Theoretical Approach to Demystify the Role of Copper Salts and O2 in the Mechanism of C-N Bond Cleavage and Nitrogen Transfer
Authors: Ghosh Boyli , Banerjee Ambar , Roy Lisa , Nath Rounak , Manna Rabindra Nath Manna , Paul Ankan
Published: May 2021

C≡N bond scission accomplished by protonation, reductive cleavage and metathesis techniques are well-known to execute nitrogen transfer reactions. Herein, we have conducted an extensive computational study, using DFT and molecular dynamics simulations, to unravel the mechanistic pathways traversed in CuCN and CuBr2 promoted splitting of coordinated cyanide anion under a dioxygen atmosphere, which enables nitrogen transfer to various aldehydes. Our detailed electronic structure analysis using ab initio multi-reference CASSCF calculations reveal that both the promoters facilitate radical pathways, in agreement with the experimental findings. This is a unique instance of oxygen activation initiated by single electron transfer from the nitrile carbon, while the major driving force is the operation of the CuII/I redox cycle. Our study reveals that the copper salts act as the “electron pool” in this unique nitrogen transfer reaction forming aryl nitrile from aryl aldehydes.
Le développement du théâtre francophone au Québec à la fin du dix-neuvième siècle : le rôle de Louis-Honoré Fréchette (1839-1908)
Authors: French French
Published: May 2021

Dans la quatrième de couverture de l’ouvrage de Jean-Claude Germain intitulé La double vie littéraire de Louis Fréchette (2014), on lit cette petite phrase : « Louis Fréchette ! Ce nom fait partie de l’inconscient collectif des Québécois : on l’a donné à des rues, des écoles, des bibliothèques ». Fréchette (1839-1908) est sans doute l’un des quelques noms qui sont parvenus jusqu’à nous de la littérature canadienne-française du dix-neuvième siècle. Bien qu’on le connaisse plutôt pour ses poèmes et pour ses contes, Fréchette a été aussi dramaturge. Il a écrit et adapté plusieurs textes pour la scène, qui ont eu connu une large diffusion et une bonne réception au Canada. Ses pièces ont été publiées dans de grandes maisons d’édition de l’époque comme Beauchemin. Elles ont été représentées tant par des amateurs que par des troupes professionnelles dans de grandes salles de théâtre au Québec. On pense, entre autres, à Félix Poutré (1871), au Retour de l’exilé (1880), à Papineau (1880) et à Veronica (1974, publication posthume). Un fait intéressant : Félix Poutré devient la pièce la plus jouée par des amateurs canadiens et franco-américains au dix-neuvième siècle (Germain 63). Cet article porte sur le théâtre de Fréchette, plus précisément sur les modes de production de ses pièces (texte et représentation) et leurs réceptions. Je tenterai de répondre aux questions suivantes : comment Fréchette procède-t-il au théâtre (la fable, l’intrigue, la structure, etc.) ? Où se situe-t-il par rapport à la tradition théâtrale et culturelle au Québec au dix-neuvième siècle ? Comment les productions de ses pièces sont-elles perçues par le public et par la critique ?
A LEGAL AWARENESS OF COPYRIGHT ON REGIONAL SONG CREATORS
Authors: Labetubun Muchtar A H
Published: May 2021

Copyright as an exclusive right for the creator or copyright holder to carry out the results of his ideas or ideas in the form of specific information or certain. Basically, copyright is the right to copy, adapt or produce a work, copyright is possible for the right holder to limit the copying or in any form without the illegitimate permission of a work, it can be realized by registration copyright, in its application, of course, there are obstacles that exist in the enforcement of copyright law itself. One example is the lack of awareness in registration copyright of songs by the creator. The research objective was to determine and analyze the legal awareness of regional pop songwriters to register their copyright. The research method uses normative research through a conceptual approach and a statue approach. The results show that the composers of regional pop songs know the importance of recording copyright because it is in accordance with the mandate of Act No. 28 of 2014 concerning Copyright and has also participated in the socialization carried out by the Ministry of Law and Human Rights, but songwriters do not record their work. Some songwriters consider that the registration is of no use because, from an economic standpoint, they cannot profit or lose personally, besides that their aspirations have not been fully channeled by the related institutions they shelter in this case the Collective Management Institute. Therefore to decide on the sale of the song's copyrighted work rather than registering it to the Ministry of Law and Human Rights in the Field of Intellectual Property.
Pemberdayaan Kesehatan Melalui Pelatihan Pengolahan Jajanan Sehat, Bergizi, dan Aman Berbasis Pangan Lokal
Authors: Syahrudin Maure Gitta Miranti
Published: May 2021

Beredarnya pangan yang tidak aman sangat berdampak buruk pada pertumbuhan anak pada usia sekolah. Kondisi lingkungan sekolah di sekitar desa Sedayulawas, Lamongan banyak terdapat penjual dengan kualitas makanan yang kurang baik. Hal ini dapat dilihat penggunaan pewarna makanan yang sangat mencolok atau minyak goreng yang sudah tidak layak pakai.  Oleh karena itu, perlu adanya penyuluhan pemberdayaan kesehatan tentang pemilihan dan pelatihan pembuatan jajanan sehat dan bergizi dengan menggunakan bahan pangan lokal. Kegiatan ini ber tujuan memberikan bekal pengetahuan, sikap dan keterampilan kepada peserta pelatihan untuk mengolah jajanan  berbasis pangan lokal dan meningkatkan kesadaran masyarakat terhadap keamanan pangan yang berdar. Dalam kegiatan ini dilakukan pengukuran pengetahuan pada sebelum dan sesudah intervensi  (pre-post  test).  Intervensi   berupa  penyuluhan dan pelatihan pembuatan  jajanan.  Peserta mengalami peningkatan pengetahuan mengenai jajanan sehat sebesar 14,26%.  Setelah itu dilakukan pelatihan pembuatan jajanan sehat dan bergizi berbasis pangan lokal. Sebesar 87,8%  menyukai  metode  praktik  langsung,  dan nilai rata-rata produk yang dibuat adalah 3,45 yang terdiri dari penilaian kriteria hasil produk, sanitasi dan hygiene, serta penyajian produk. Dari kegiatan pelatihan ini dapat disimpulkan bahwa pemberdayaan kesehatan melalui pelatihan pengolahan jajanan sehat, bergizi, dan aman sangat dibutuhkan dan perlu didukung oleh masyarakat dan pemerintah melalui kebijakan/peraturan atau melalui kegiatan serupa.
Liderazgo efectivo del supervisor pedagógico
Authors: Ramírez Samudio Lorenzo
Published: May 2021

La dinámica del mundo actual, con fuertes repercusiones socioculturales, políticas y económicos, para el sistema educativo es una preocupación constante y un verdadero reto: Implementar procesos de formación con estándares de calidad y entregar a la sociedad ciudadanos, competentes, de alto rendimiento, preparados para actuar en este nuevo contexto. Estos compromisos forzaron la reforma de la educación, el rediseño del currículo, nuevas técnicas didácticas, modelos de aprendizaje centrados en el alumno, así como la estructura organizacional y gestión educativa incorporaron importantes ajustes en las últimas décadas. Históricamente la supervisión es un componente fundamental del sistema educativo y esta responsabilidad recae sobre el supervisor escolar. Ante las necesidades de transformación, su figura de autoridad ligada, casi siempre, a inspección, control, vigilancia, fiscalización, intervención; transita por un proceso de resignificación en sus propósitos, su conceptualización, sus modalidades y, en su puesta en práctica al interior de las organizaciones escolares, como expresión de un auténtico liderazgo e idoneidad.
Mecanismos de incentivo para la generación de conocimiento, en cuanto a trabajos de investigación, en una universidad de gestión pública de Paraguay
Authors: Gonzáles Valdez Cristian Omar , Molinas de Santana Graciela María Delia
Published: May 2021

La presente investigación, presenta una descripción de los mecanismos de incentivo en una universidad de gestión pública de Paraguay, durante el año 2018, para la generación de conocimiento en cuanto a trabajos de investigación; a partir de este estudio, se identificó cuáles son los mecanismos utilizados por la institución, desde la percepción de los actores y documentaciones institucionales. Los resultados obtenidos permitieron que la institución pueda tener un panorama en relación a la temática abordada, y que estos resultados sirvan como base de valoración y desarrollo de políticas y criterios por las autoridades institucionales, en caso de que estas sean necesarias.
Crecimiento económico de la provincia de San Luis: su impacto en el empleo formal
Authors: Pasteris Elizabeth , Solavallone Gonzalo
Published: May 2021

Si bien el crecimiento económico de un territorio se mide a través de la evolución de su Producto Bruto Geográfico per cápita, el impacto sobre el bienestar de la población se evalúa, entre otras variables, por la capacidad de este crecimiento de generar demanda de empleo de calidad. Algunos territorios sub-nacionales presentan una parte de su actividad económica con determinantes autónomos, que los hace independizarse, al menos parcialmente, de los ciclos nacionales. Ciertas políticas públicas sectoriales apuntan a conseguir estos resultados.
Propuesta de análisis de la contribución del sector vitivinícola al desarrollo sostenible en el marco de los Objetivos del Desarrollo Sostenible. Mapeo, identificación de prácticas más significativas y su vinculación con objetivos y metas específicos
Authors: Fonzar Alfredo , Roby Osvaldo , Ceresa Alejandro , Abraham Laura
Published: May 2021

Los 17 Objetivos de Desarrollo Sostenible (ODS), con sus 169 metas conexas, surgen en el año 2015 como una nueva agenda de retos globales para erradicar la pobreza, proteger el planeta y asegurar la prosperidad para todos alcanzables al 2030. Resulta pertinente acercar al sector de las empresas una agenda de logro de Objetivos de Desarrollo Sostenible, jugando las empresas vitivinícolas mendocinas un importante papel en la co-construcción del desarrollo sostenible. El trabajo pretende contribuir a la construcción de un Mapa Estratégico sectorial en materia de Objetivos de Desarrollo Sostenible. Como también elaborar una agenda de priorización sobre aquellas temáticas que serán necesarias profundizar
Crédito comercial al consumo en el Gran Asunción
Authors: Peña Cardozo Ángel Ramón
Published: May 2021

Se entiende al crédito comercial al consumo como una alternativa, que ofrecen las casas comerciales, a los consumidores para realizar la adquisición de los bienes ofertados en cuotas. En este contexto, se evidencia la necesidad de estudios y una teoría genérica con relación a esta tipología de crédito (Rodríguez, 2008). Siendo así, estudios como este contribuyen con información relevante a la hora de optar entre distintas alternativas para el aplazamiento del pago. Si bien los resultados se presentan desde la perspectiva del potencial consumidor la información relevada podría servir también a micro, pequeñas y medianas empresas, que deseen viabilizar sus ventas, a través del crédito comercial al consumo, para lo cual, pueden observar los mecanismos aplicados por estas empresas.
Nivel de formalidad tributaria de pequeñas empresas de la zona de Ciudad del Este – Barrio Pablo Rojas del Año 2019
Authors: Burgos Pereira Richard Herminio , Santa Cruz Segovia Analía Blanca , Zayas Páez Silvia Esther , Bareiro Nidia
Published: May 2021

En el pensamiento popular radica la conciencia del predominio de la no necesidad de formalización tributaria más impactante aún en los pequeños extractos de la sociedad donde pequeñas empresas se encuentran situadas, pues es allí donde impera el desconocimiento ciudadano sobre las normativas a las cuales están sujetas sus operaciones comerciales y de las ventajas competitivas que pudieran obtener con la formalización. La exploración primera ameritaba el rastreó del primer indicador de formalización constituida por la inscripción en el registro único de contribuyentes de ahí a observar su nivel de conocimientos para creación de actividades de extensión tendientes a modificar la realidad existente en la zona.
Conflictos resaltantes entre alumnos de la educación media y formas de gestión en el Colegio Nacional de Enseñanza Media Diversificada “Ysaty”. Año 2019
Authors: Gauto Villasanti Ramona Mabel , Ruoti Cosp Mónica
Published: May 2021

Con el fin de visibilizar los conflictos que los alumnos de  la Educación Media sobrellevan diariamente entre sus pares, con sus docentes, conflictos externos al sistema educativo que los afecta, conflictos más recurrentes y su gestión se ha llevado  a cabo el presente estudio, que busca adentrarse en el origen, gestión de los conflictos, el conocimiento acerca de la mediación educativa entre los alumnos del nivel medio, y, la percepción de actores clave en el micro espacio de la institución educativa.
Trayectoria, presente y desafíos de un equipo interdisciplinario de la Universidad Nacional de Cuyo en materia de extensión y prácticas educativas
Authors: Lastra Tiago , Macello Franco , Calcagno Duilio , Baziuk Pedro
Published: May 2021

El presente relato de experiencias se centra en la trayectoria de proyectos de extensión y prácticas sociales educativas desarrollados por un equipo interdisciplinario de docentes y estudiantes de la Universidad Nacional de Cuyo en el marco de transiciones socio-tecnológicas en zonas aisladas del Departamento de Lavalle, Provincia de Mendoza, República Argentina, aunque se han llevado a cabo experiencias similares en la zona de Alta Montaña del Departamento de Las Heras. Estas actividades, impulsadas desde 2015 fundamentalmente en el marco de convocatorias de la Universidad Nacional de Cuyo, han demostrado resultados fructíferos no solamente en materia de extensión, sino también en ámbitos educativos y de investigación, tanto establecidos como disruptivos.
Síndrome de Burnout en docentes de 9 Instituciones de Educación Escolar Básica del Distrito de Itacurubí del Rosario, en el año 2020
Authors: Melo de Braun Nancy Raquel
Published: May 2021

El Síndrome de Burn Out (o Síndrome del quemado) es caracterizado como una manifestación del agotamiento físico, emocional e intelectual causado por el estrés y las presiones laborales prolongadas, que se manifiesta por la presencia de sentimientos negativos hacia las personas y hacia el propio rol profesional, agotamiento emocional, despersonalización y bajos sentimientos de realización personal; esta respuesta ocurre frecuentemente en docentes, más aun con la situación de pandemia que obliga a combinar las labores profesionales con las personales desde el hogar. El estudio se justifica por la necesidad de conocer y reconocer los síntomas del estrés laboral, su implicancia en la vida y desarrollo profesional, de modo a realzar la importancia del bienestar integral de las personas (Cuerpo, mente y espíritu) y tomar medidas de prevención que ayuden a mitigar las posibles situaciones que favorezcan la aparición del síndrome, como de la promoción de hábitos, conductas que se sumen como factores protectores y sean visualizados de forma correcta por la población objeto de estudio.