bluuebunny/crossref_metadata_2025 huggingface dataset:
EPO and EPO-Receptor System as Potential Actionable Mechanism for the Protection of Brain and Heart in Refractory Epilepsy and SUDEP
Authors: Auzmendi Jerónimo , Puchulu María B. , Rodríguez Julio C. G. , Balaszczuk Ana M. , Lazarowski Alberto , Merelli Amalia
Published: February 2020

The most important activity of erythropoietin (EPO) is the regulation of erythrocyte production by
activation of the erythropoietin receptor (EPO-R), which triggers the activation of anti-apoptotic and proliferative
responses of erythroid progenitor cells. Additionally, to erythropoietic EPO activity, an antiapoptotic effect has
been described in a wide spectrum of tissues. EPO low levels are found in the central nervous system (CNS),
while EPO-R is expressed in most CNS cell types. In spite of EPO-R high levels expressed during the hypoxicischemic
brain, insufficient production of endogenous cerebral EPO could be the cause of determined circuit
alterations that lead to the loss of specific neuronal populations. In the heart, high EPO-R expression in cardiac
progenitor cells appears to contribute to myocardial regeneration under EPO stimulation. Several lines of evidence
have linked EPO to an antiapoptotic role in CNS and in heart tissue. In this review, an antiapoptotic role of
EPO/EPO-R system in both brain and heart under hypoxic conditions, such as epilepsy and sudden death
(SUDEP) has been resumed. Additionally, their protective effects could be a new field of research and a novel
therapeutic strategy for the early treatment of these conditions and avoid SUDEP.
In Silico Drug Target Discovery Through Proteome Mining from M. tuberculosis: An Insight into Antivirulent Therapy
Authors: Bhattacharya Shreya , Ghosh Puja , Banerjee Debasmita , Banerjee Arundhati , Ray Sujay
Published: February 2020

Aim and Objective:

One of the challenges to conventional therapies against Mycobacterium tuberculosis is the development of multi-drug resistant pathogenic strains. This study was undertaken to explore new therapeutic targets for the revolutionary antivirulence therapy utilizing the pathogen’s essential hypothetical proteins, serving as virulence factors, which is the essential first step in novel drug designing.

Methods:

Functional annotations of essential hypothetical proteins from Mycobacterium tuberculosis (H37Rv strain) were performed through domain annotation, Gene Ontology analysis, physicochemical characterization and prediction of subcellular localization. Virulence factors among the essential hypothetical proteins were predicted, among which pathogen-specific drug target candidates, non-homologous to human and gut microbiota, were identified. This was followed by druggability and spectrum analysis of the identified targets.

Results and conclusion:

The study successfully assigned functions of 83 essential hypothetical proteins of Mycobacterium tuberculosis, among which 25 were identified as virulence factors. Out of 25, 12 virulence factors were observed as potential pathogen-specific drug target candidates. Nine potential targets had druggable properties and rest three were considered as novel targets. Exploration of these targets will provide new insights into future drug development. Characterization of subcellular localizations revealed that most of the predicted targets were cytoplasmic which could be ideal for intracellular drugs, while two drug targets were membranebound, ideal for vaccines. Spectrum analysis identified one broad-spectrum and 11 narrowspectrum targets. This study would, therefore, instigate designing novel therapeutics for antivirulence therapy, which have the potential to serve as revolutionary treatment instead of conventional antibiotic therapies to overcome the lethality of antibiotic-resistant strains.
ZnO-nanorods Promoted Synthesis of α-amino Nitrile Benzofuran Derivatives using One-pot Multicomponent Reaction of Isocyanides
Authors: Najar Asef H. , Hossaini Zinatossadat , Abdolmohammadi Shahrzad , Zareyee Daryoush
Published: February 2020

Aims & Objective:

In this work ZnO-nanorod (ZnO-NR) as reusable catalyst promoted Strecker-type reaction of 2,4-dihydroxyacetophenone, isopropenylacetylene, trimethylsilyl cyanide (TMSCN), primary amines and isocyanides at ambient temperature under solvent-free conditions and produced α-amino nitriles benzofuran derivatives in high yields. These synthesized compounds may have antioxidant ability.

Materials and Methods:

ZnO-NRs in these reactions were prepared according to reported article. 2,4-dihydroxyacetophenone 1 (2 mmol) and isopropenylacetylene 2 (2 mmol) were mixed and stirred for 30 min in the presence of ZnO-NR (10 mol%) under solvent-free conditions at room temperature. After 30 min, primary amine 3 (2 mmol) was added to the mixture gently and the mixture was stirred for 15 min. After this time TMSCN 4 (2 mmol) was added to the mixture and stirred for 15 min. After completion of the reaction, as indicated by TLC, isocyanides 5 was added to mixture in the presence of catalyst.

Results:

In the first step of this research, the reaction of 2,4-dihydroxyacetophenone 1, isopropenylacetylene 2, methyl amine 3a, trimethylsilyle cyanide 4 and tert-butyl isocyanides 5a was used as a sample reaction to attain the best reaction conditions. The results showed this reaction performed with catalyst and did not have any product without catalyst after 12 h.

Conclusion:

In conclusion, we investigate multicomponent reaction of 2,4-dihydroxyacetophenone 1, isopropenylacetylene 2, primary amines 3, trimethylsilyl cyanide 4 and isocyanides along with ZnO-NRs as reusable catalyst at room temperature under solvent-free conditions which generates α-amino nitrile benzofuran derivatives in high yields. The advantages of our method are high atom economy, green reaction conditions, higher yield, shorter reaction times, and easy work-up, which are in good agreement with some principles of green chemistry. The compounds 8c exhibit excellent DPPH radical scavenging activity and FRAP compared to synthetic antioxidants BHT and TBHQ.
The Effects of X-Ray Irradiation on Safety and Nutritional Value of Food: A Systematic Review Article
Authors: Zehi Zakiyeh B. , Afshari Asma , Noori Seyyed M.A. , Jannat Behrooz , Hashemi Mohammad
Published: February 2020

X-ray is a non-thermal technology that has shown good efficacy in reducing pathogenic and
spoilage bacteria, viruses and parasites. X-ray hygiene technology resulted in a high microbial loss in
numerous food products, such as dairy products, ready-to-eat shrimp, oysters, fresh products, strawberries,
shredded iceberg lettuce, and spinach leaves. Some X-ray studies on food safety have shown that
X-ray is an effective technology and is also an appropriate alternative to the electron beam and gamma
rays, and can be used in the food industry without side effects on human health. Besides, we reviewed
the X-ray effect on the nutritional value of food. Therefore in this study, we aimed to review the available
pros and cons of current studies regarding X-rays’ effects on the food industry.
Identification of Most Relevant Features for Classification of Francisella tularensis using Machine Learning
Authors: Ahmad Fareed , Farooq Amjad , Ghani Khan Muhammad Usman , Shabbir Muhammad Zubair , Rabbani Masood , Hussain Irshad
Published: February 2020

Background:

Francisella tularensis is a stealth pathogen fatal for animals and humans. Ease of its propagation, coupled with high capacity for ailment and death makes it a potential candidate for biological weapon.

Objective:

Work related to the pathogen’s classification and factors affecting its prolonged existence in soil is limited to statistical measures. Machine learning other than conventional analysis methods may be applied to better predict epidemiological modeling for this soil-borne pathogen.

Methods:

Feature-ranking algorithms namely; relief, correlation and oneR are used for soil attribute ranking. Moreover, classification algorithms; SVM, random forest, naive bayes, logistic regression and MLP are used for classification of the soil attribute dataset for Francisella tularensis positive and negative soils.

Results:

Feature-ranking methods concluded that clay, nitrogen, organic matter, soluble salts, zinc, silt and nickel are the most significant attributes while potassium, phosphorous, iron, calcium, copper, chromium and sand are the least contributing risk factors for the persistence of the pathogen. However, clay is the most significant and potassium is the least contributing attribute. Data analysis suggests that feature-ranking using relief produced classification accuracy of 84.35% for multilayer perceptron; 82.99% for linear regression; 80.27% for SVM and random forest; and 78.23% for naive bayes, which is better than other ranking methods. MLP outperforms other classifiers by generating an accuracy of 84.35%, 82.99% and 81.63% for feature-ranking using relief, correlation and oneR algorithms, respectively.

Conclusion:

These models can significantly improve accuracy and can minimize the risk of incorrect classification. They further help in controlling epidemics and thereby minimizing the socio-economic impact on the society.
The Affinity of Human Fetal Osteoblast to Laser-Modified Titanium Implant Fixtures
Authors: Khoo Lee Kian , Kiattavorncharoen Sirichai , Pairuchvej Verasak , Lakkhanachatpan Nisanat , Wongsirichat Natthamet , Seriwatanachai Dutmanee
Published: February 2020

Introduction:

Implant surface modification methods have recently involved laser treatment to achieve the desired implant surface characteristics. Meanwhile, surface modification could potentially introduce foreign elements to the implant surface during the manufacturing process.

Objectives:

The study aimed to investigate the surface chemistry and topography of commercially available laser-modified titanium implants, together with evaluating the cell morphology and cell adhesion of human fetal osteoblast (hFOB) seeded onto the same implants.

Method:

Six (6) samples of commercially available laser-modified titanium implants were investigated. These implants were manufactured by two different companies. Three (3) implants were made from commercially pure grade 4 Titanium (Brand X); and three were made from grade 5 Ti6Al4V (Brand Y). The surface topography of these implants was analyzed by scanning electron microscope (SEM) and the surface chemistry was evaluated with electron dispersive x-ray spectroscopy(EDS). Human fetal osteoblasts were seeded onto the implant fixtures to investigate the biocompatibility and adhesion.

Results & Discussion:

Brand X displayed dark areas under SEM while it was rarely found on brand Y. These dark areas were consistent with their organic matter. The hFOB cell experiments revealed cell adhesion with filopodia on Brand X samples which is consistent with cell maturation. The cells on Brand Y were morphologically round and lacked projections, one sample was devoid of any noticeable cells under SEM. Cell adhesion was observed early at 48 hrs in laser-irradiated titanium fixtures from both the brands.

Conclusion:

The presence of organic impurities in Brand X should not be overlooked because disruption of the osseointegration process may occur due to the rejection of the biomaterial in an in-vivo model. Nevertheless, there was insufficient evidence to link implant failure directly with carbon contaminated implant surfaces. Further studies to determine the toxicity of Vanadium from Ti6Al4V in an in-vivo environment should indicate the reason for different cell maturation.
Effects of Coronary Angioplasty on Inflammatory Markers and Lipid Profile in Patients with Cardiovascular Disease
Authors: Tanajura da Silva Tathiane , Junior Roque A. , de Moura Daniel Lima , A. Santos Júlio C. , Müller da Fonseca Álvaro L. , Couto Ricardo D. , M. Lima Fernanda W.
Published: February 2020

Background:

Although atherosclerosis is a major cause of mortality, little is known about the role of inflammation, and mediators of disease progression. In this study, serum levels of inflammatory markers were evaluated in stable atherosclerotic disease patients before and by 24 hours after coronary angioplasty and stenting.

Methods:

The study included 12 patients (eight women and four men) who underwent coronary angioplasty to implant a conventional wire-mesh cobalt-chromium stent. Changes in the lipid profile were investigated. The pro-inflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukine-17 (IL-17) were measured by enzyme immunoassays. All patients received statins and reported being hypercholesterolemic, hypertensive, and sedentary.

Results:

TNF-α and IL-17 levels did not differ significantly before and after angioplasty. The total leukocyte count had a significant reduction when compared before (7.6; 6.5-10.6cells/µL) and after (6.78;5.2-8.2cells/µL) angioplasty, although, on the other hand, the CRP levels increased from 2.5 (0.0-14.75) to 8.0 (0.75-31mg/dL) (p<0.05). Patients had significantly higher average total cholesterol before (160; 148-193) then after (155; 122-172mg/dL) (p=0.0038), as well as HDL-cholesterol, before (41; 30-49) and after (33; 32-42mg/dL) (p=0.0192), and apolipoprotein-A levels, before (159;133-169) and after, (143; 115-150 mg/dL) (p<0.05) procedure. On the other hand, no significant differences were noticed on LDL-cholesterol, triglycerides, and apolipoprotein-B concentrations.

Conclusion:

The angioplasty procedure with stent implantation influenced lipoprotein metabolism specifically that of HDL, by leading to HDL-c and apolipoprotein-A reductions, as well as total leukocyte count, and CRP elevations by 24 hours after procedure.
Wetting of glass surface using natural surfactants
Authors: Biswal Nihar Ranjan
Published: February 2020

Background:

Surfactant adsorption at the interfaces (solid–liquid, liquid–air, or liquid–liquid) is receiving considerable attention from a long time due to its wide range of practical applications.

Objective:

Specifically wettability of solid surface by liquids is mainly measured by contact angle and has many practical importances where solid–liquid systems are used. Adsorption of surfactants plays an important role in the wetting process. The wetting behaviours of three plant-based natural surfactants (Reetha, Shikakai, and Acacia) on the glass surface are compared with one widely used nonionic synthetic surfactant (Triton X-100) and reported in this study.

Methods:

The dynamic contact angle study of three different types of plant surfactants (Reetha, Shikakai and Acacia) and one synthetic surfactant (Triton X 100) on the glass surface has been carried out. The effect of two different types of alcohols such as Methanol and amyl alcohol on wettability of shikakai, as it shows little higher value of contact angle on glass surface has been measured.

Results:

The contact angle measurements show that there is an increase in contact angle from 47° (pure water) to 67.72°, 65.57°, 68.84°, and 68.79° for Reetha, Acacia, Shikakai, and Triton X-100 respectively with the increase in surfactant concentration and remain constant at CMC. The change in contact angle of Shikakai-Amyl alcohol mixtures are slightly different than that of methanol-Shikakai mixture, mostly there is a gradual increase in contact angle with the increasing in alcohol concentration.

Conclusion:

There is no linear relationship between cos θ and inverse of surface tension. There was a linear increase in surface free energy results with increase in concentration as more surfactant molecules were adsorbing at the interface enhancing an increase in contact angle.
Carbamylated Lipoproteins and Progression of Diabetic Kidney Disease
Authors: Tan Kathryn C.B. , Cheung Ching-Lung , Lee Alan C.H. , Lam Joanne K.Y. , Wong Ying , Shiu Sammy W.M.
Published: February 2020

Background and objectives

Protein carbamylation is a consequence of uremia and carbamylated lipoproteins contribute to atherogenesis in CKD. Proteins can also be carbamylated by a urea-independent mechanism, and whether carbamylated lipoproteins contribute to the progression of CKD has not been investigated.

Design, setting, participants, & measurements

A case-control study was performed to determine whether there were changes in plasma levels of carbamylated lipoproteins in individuals with type 2 diabetes with eGFR >60 ml/min per 1.73 m2 compared with a group of age- and sex-matched healthy controls. A cohort of 1320 patients with type 2 diabetes with baseline eGFR ≥30 ml/min per 1.73 m2 was longitudinally followed up to evaluate the association between carbamylated lipoproteins and progression of CKD. The primary kidney outcome was defined as doubling of serum creatinine and/or initiation of KRT during follow-up. Plasma carbamylated LDLs and HDLs was measured by ELISA.

Results

In individuals with diabetes with eGFR >60 ml/min per 1.73 m2, both plasma carbamylated LDL and HDL levels were higher compared with healthy controls (P<0.001). After a mean follow-up of 9 years of the diabetic cohort, individuals in the top quartile of carbamylated LDL (hazard ratio, 2.21; 95% confidence interval, 1.42 to 3.46; P<0.001) and carbamylated HDL (hazard ratio, 4.53; 95% confidence interval, 2.87 to 7.13; P<0.001) had higher risk of deterioration of kidney function compared with those in the lowest quartile. On multivariable Cox regression analysis, plasma carbamylated LDL was no longer associated with kidney outcome after adjusting for baseline eGFR and potential confounding factors. However, the association between plasma carbamylated HDL and kidney outcome remained significant and was independent of HDL cholesterol.

Conclusions

Plasma carbamylated HDL but not carbamylated LDL was independently associated with progression of CKD in patients with type 2 diabetes.
Betancor, Martín y Alejandra Ferrari (eds). Estudios sobre los folletines de Horacio Quiroga. Montevideo: +Quiroga Ediciones, 2019
Authors: Pionetti Marinela
Published: February 2020

Reseña sobre: Ferrari, A. (comp.) (2019). S. Fragoso Lima: Las fieras cómplices (1908), El mono que asesinó (1909), El hombre artificial (1910), El devorador de hombres (1911), Una cacería humana en África (1912) y El remate del imperio romano (1912) y sobre: Bentancor, M. y Ferrari, A. (editores). Estudios sobre los folletines de Horacio Quiroga. Montevideo: + Quiroga ediciones, MEC: Fondo concursable para la cultura, 2019.
The Kurdish Issue in Turkish-Syrian Relations in the Context of the Syrian Crisis
Authors: Gevorgyan Anna Garnukovna
Published: February 2020

The article is devoted to the Kurdish issue in the context of bilateral relations between Turkey and Syria after the start of the 2011 Syrian crisis. Particular attention is paid to the role of the Kurdish issue in the Turkish-Syrian relations. The author describes the Turkish policy on the Kurdish problem and its place in the context of Turkey’s national interests. The article covers gradual development of the Syrian-Kurdish policy of Turkey and dynamics of relations between Ankara and Damascus in the context of strengthening the Kurdish national movement in Syria. The activities of the Kurdish political parties and organizations in the northern and northeastern part and the development perspective of the Kurdish issue are especially analyzed. Turkey’s relations with Syria, Iran, Iraq, where Kurds live, have always been based on the Kurdish issue. Contrary to the differences and conflicts between Kurdish parties in the Middle East, the Kurdish issue is regional in nature. In addition to being a domestic political problem, Turkey considers the Kurdish issue as a foreign policy problem. Turkey presents its fight against the Kurdish PKK forces as a fight against terrorist forces, seeing the intensification of political and military activities of the Syrian Kurds as a direct threat to its national security. Over the past years, Turkish-Syrian relations have substantially changed and transformed from strategic partnership to militarypolitical confrontation. Despite the existing contradictions, Turkey and Syria have common interests, including the Kurdish issue, the stability of the region, the predictability of the development of political events in the Middle East region, and economic relations. However, regardless of the outcome of the Syrian war, Turkey needs a predictable Syria without a strong Kurdish element. The Syrian crisis has given new opportunities to the Kurds of Syria in terms of strengthening their positions, but clearly demonstrated the problems existing in the way of creating a Kurdish state. Currently, the preservation of the territorial integrity of Syria allows taking into account the interests of all parties involved in the conflict, including external players.
King of the Hashemite Kingdom of Jordan Abdullah II: Political Portrait
Authors: Morozova Nadezhda Nikolaevna
Published: February 2020

King of the Hashemite Kingdom of Jordan Abdullah II in 2019 celebrated the 20th anniversary of his ascension to the throne. The article covers the features of the socio-political and economic life of the state and the role of King Abdullah II in the development of the Hashemite Kingdom. The history of Jordan is full of important events, many of which remain significant to this day. One of the main issues for Jordan and its head, King Abdullah II, has been and still remains the Palestinian problem. Considering that the majority of the Jordanian population is Palestinians, represented by both the indigenous inhabitants of the Kingdom and political refugees who have moved to the territory of the Hashemite state as a result of the Palestinian-Israeli wars and conflicts. Currently, the Kingdom is facing quite challenging realities and consequences of international terrorism and extremism, as well as the growth of ideas of radical Islamism within the state. The author’s research goal is not just to present the biography of the king, but through his biography to highlight the history and trends of the modern development of the Hashemite Kingdom of Jordan. The political portrait of the king helps to analyze more accurately the multifaceted life of Jordan and present events. A special part of the history of Jordan is the bilateral relationship between the Hashemite Kingdom and the Russian Federation. Regular meetings of King Abdullah II and President V.V. Putin demonstrate the similarity of positions on many foreign policy issues, in particular the situation in the Middle East and in Syria, which emphasizes the importance and priority of cooperation between the two countries. The article also describes the role of the personality of King Abdullah II, his desire to balance the internal political situation of Jordan, as well as his actions regarding international security and the peaceful existence of peoples and religions.
Post-Event Cinema Discourse: Concept, Functioning, Case Study
Authors: Kubrak Tina A.
Published: February 2020

The problems of the organization and functioning of post-event cinema discourse are discussed in the article. Post-event discourse is shaped by the viewers and represents their response statements in a communicative interaction with the movie; it reﬂects the processes of perception and understanding of the ﬁlm by the audience. It is discussed that if there is a real event underlying the ﬁlm, the ﬁlm itself becomes a post-event discourse, forming or reinterpreting the ideas about what happened depending on the cultural and historical context. The results of an empirical study that implements a case study methodology are presented. A thematic analysis of the post-event Internet discourse, expressed in the statements about a particular ﬁlm (“T-34”), has been carried out. A thematic map that revealed the structure of the post-event cinema discourse and its simpliﬁed versions, due to the genre features of the ﬁlm has been developed. It is shown that viewers not only interpret the plot of the ﬁlm, but also rethink the events behind it, express the eﬀects of inﬂuence, raise topics for discussion that are not directly related to the ﬁlm. The structure of post-event discourse changes depending on the characteristics of the audience. It has been revealed that the signiﬁcant part of the audience perceived the ﬁlm in accordance with the original function of cinema as “entertainment”. This determined both the peculiarities of its understanding and the eﬀects of the impact, mainly emotional. Another part of the audience discovered the cognitive implications of the ﬁlm and demonstrated a more complex structure of post-event discourse organization; understanding the ﬁlm in a broader context contributed to the comprehension and actualization of additional themes. It is assumed that the unfolding post-event discourse in the process of communicative interaction of the viewer with the ﬁlm contributes to the formation of discursive reality.
Results of the All-Russian Professional Skill Contest “Educational Psychologist of Russia - 2019”
Authors: Kudinov Stanislav S. , Khairova Zulﬁa R.
Published: February 2020

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PELAYANAN BADAN PENYELENGGARA JAMINAN SOSIAL
Authors: Yasira Rifa , Jamhir Jamhir
Published: February 2020

Pelayanan adalah suatu kegiatan atau urutan kegiatan yang terjadi dalam interaksi langsung antara seseorang dengan orang lain atau mesin secara fisik, dan menyediakan kepuasan pelanggan, pelayanan juga dapat diartikan sebagai usaha melayani kebutuhan orang lain. Pelayanan kesehatan pada masa kini sudah merupakan industri jasa kesehatan utama dimana setiap rumah sakit bertanggung jawab gugat terhadap penerima jasa pelayanan kesehatan. Keberadaan dan kualitas pelayanan kesehatan yang diberikan ditentukan oleh nilai-nilai dan harapan dari penerima jasa pelayanan tersebut. Tujuan pelayanan kesehatan adalah tercapainya derajat kesehatan masyarakat yang memuaskan harapan dan kebutuhan derajat masyarakat dengan biaya yang dapat dipertanggung jawabkan melalui pelayanan yang efektif oleh pemberi pelayanan, pada institusi pelayanan yang diselenggarakan secara efisien. Interaksi ketiga pilar utama pelayanan kesehatan yang serasi, selaras, dan seimbang merupakan panduan dari kepuasan tiga pihak, dan ini merupakan pelayanan kesehatan yang memuaskan.
Expediente v.27 n.1 2017
Authors: Freire Gustavo Henrique de Araújo , Freire Isa Maria
Published: February 2020

Expediente v.27 n.1 2017. Editores, Comissão Editorial, Conselho Consultivo, Avaliadores, Equipe Técnica.
A área de Ciência da Informação na Capes
Authors: Freire Gustavo Henrique de Araújo , Freire Isa Maria
Published: February 2020

Editorial v.27 n.1 2017.
Percepções de pesquisadores brasileiros sobre o acesso aberto à literatura científica
Authors: Furnival Ariadne Chloe Mary , Silva-Jerez Nelson Sebastian
Published: February 2020

A pesquisa se propôs explorar como várias dimensões do acesso aberto à literatura científica são percebidas por pesquisadores brasileiros, identificando também seus hábitos de publicação, uso e citação de fontes em acesso aberto. A abordagem metodológica foi quantitativa, com aplicação de um questionário a 643 doutores permanentes distribuídos nas universidades brasileiras, oriundos de todos as áreas disciplinares. O questionário foi elaborado com auxílio da plataforma livre LimeSurvey, sendo composto por 29 questões fechadas. Foram recebidos questionários respondidos por pesquisadores oriundos de 31 Institutos de Ensino Superior e Institutos de Pesquisa no Brasil. A estratificação por área mostrou uma distribuição relativamente equilibrada entre os campos de conhecimento, com a maior porcentagem sendo das Ciências da Saúde (21%), seguido pelas Ciências Exatas e da Terra (20,1%), e a menor porcentagem, de 1,1%, de Linguística, Letras e Artes. Os resultados apontaram que a grande maioria dos pesquisadores respondentes detém conhecimento sobre, e apoiam os princípios e algumas ações de acesso aberto, principalmente em relação à publicação de revistas acesso aberto, o que reflete também nos seus hábitos de uso e citação dessas fontes. Comparativamente, o conhecimento e uso de repositórios é menor, e parece haver uma certa confusão em relação ao status de copyright dos artigos arquivados em repositórios. Ficou evidente que os pesquisadores acreditam que somente os postprints deveriam ser disponibilizados em repositórios. O desconhecimento identificado acerca da compatibilidade entre a publicação em revistas “convencionais”, de assinatura e o arquivamento do mesmo artigo em repositórios em acesso aberto aponta a necessidade de maiores iniciativas informativas para esclarecer esses aspectos.
Usuário da informação: estudo de caso da Biblioteca do Curso de Física da Universidade Federal do Ceará
Authors: Silva Giordana Nascimento de Freitas e , Costa Maria de Fátima Oliveira , Barrocas Amélia Landim
Published: February 2020

Trata-se de uma pesquisa que objetiva conhecer o perfil dos usuários da Biblioteca do Curso de Física - BCF da Universidade Federal do Ceará - UFC. Assim, visa identificar os usuários reais da BCF, verificando o significado desta para seus usuários e compreendendo o seu nível de desenvoltura nas habilidades de busca e uso da informação. O estudo está amparado, entre outros, nos autores: Araújo (2010; 2012; 2014), Costa (2016), Cunha, Amaral e Dantas (2015) e Figueiredo (1994). Realizou-se uma pesquisa de cunho exploratório e descritivo, de natureza quali-quantitativa configurando um estudo de caso na BCF. Utilizou-se como instrumento de coleta de dados o questionário, pois este permitiu através das perguntas abertas e fechadas uma amplitude mais aprofundada na coleta de dados. Embora a análise tenha contado com a colaboração de variáveis quantitativas, seu caráter foi predominantemente qualitativo. Os resultados demonstraram que os usuários da BCF, em sua maioria, se encontram na fase jovem e são vinculados, sobretudo, ao curso de graduação em Física (bacharelado e licenciatura) e aos cursos ligados à área de Engenharias. Inferimos que o público recebido associa a BCF ao recurso basilar da universidade: o conhecimento. Isto porque a concebe prioritariamente enquanto espaço para realização de estudos e pesquisas. Constatamos que esse estudo apresenta-se como uma ação introdutória referente ao conhecimento do comportamento informacional desse público devendo, portanto, ser acrescida de futuras iniciativas que poderão contribuir com os usuários dando maior significado às suas buscas e, por conseguinte, colaborando na satisfação de suas necessidades de informação.
Factores determinantes de la divulgación de información sobre emprendimiento por los gobiernos locales españoles
Authors: Nevado Gil Maria Teresa , Milanés Montero Patricia , Prieto Ballester Jorge Manuel
Published: February 2020

Este trabajo tiene como objetivo examinar los factores que determinan la divulgación de información sobre emprendimiento que realizan los gobiernos locales españoles a través de sus webs. Hoy en día, es evidente la importancia otorgada a los empresarios en las economías locales. Sin embargo, el acceso a la información es asimétrico y la burocracia tiende a limitar la creación y el desarrollo de nuevos negocios. En este escenario, la administración local juega un importante papel en la promoción de un contexto económico adecuado para apoyar el emprendimiento y paliar estos problemas. La metodología utilizada consiste en la aplicación de un modelo de regresión lineal múltiple para medir la influencia de factores poblacionales, socio-económicas y fiscales sobre el indicador de emprendimiento previamente diseñado. Los resultados revelan que la divulgación de información sobre emprendimiento está relacionada con el tamaño del municipio, su capacidad institucional y el nivel de endeudamiento.
"Somente existe cultura transformada": as mediações da informação e da comunicação
Authors: Marteletto Regina Maria , Thiesen Icleia
Published: February 2020

O artigo pretende apresentar aos estudantes e pesquisadores brasileiros um autor e sua obra, Yves Jeanneret, um dos maiores expoentes das Ciências da informação e da comunicação na França. Após a apresentação breve do autor, já conhecido por parte da comunidade brasileira da Ciência da informação pela sua participação em eventos promovidos pela Rede Mussi, apresenta-se um panorama dos seus principais temas de pesquisa, desde a comunicação e a vulgarização científica, passando pelos estudos sobre as tecnologias da informação e da comunicação, até o livro objeto principal dessa apresentação, onde o autor aprofunda suas reflexões, relendo autores canônicos da filosofia, semiologia, crítica e estética literária, economia, sociologia, dentre outras disciplinas, além de recuperar e sitematizar estudos dos seus contemporâneos franceses do campo infocomunicacional, sejam eles pesquisadores ou jovens estudantes em formação doutoral. O objetivo é fundamentar uma linha de estudos sobre a trivialidade e os seres culturais, agora no contexto do apagamento das mediações, foco de estudo de uma semio-economia da informação e da comunicação.
Nível de adoção de tecnologias nas Bibliotecas Universitárias do Distrito Federal
Authors: Lourenço de Jesus Deise , Bastos da Cunha Murilo
Published: February 2020

Introdução - apresenta a adoção de novas tecnologias como ponto central para a sobrevivência e evolução das bibliotecas universitárias num futuro próximo, voltado para as tecnologias da informação. Objetivo - identificar o nível de adoção às tecnologias das bibliotecas universitárias do Distrito Federal. Métodos - mapear por meio de revisão de literatura as características da biblioteca inovadora; sugerir - baseado na revisão de literatura - métricas para mensuração do nível tecnológico e por meio de pesquisa quantitativa com questionário como instrumento de coleta de dados, mensurar o nível de adoção às tecnologias das bibliotecas universitárias do Distrito Federal. Resultados - as bibliotecas universitárias do Distrito Federal apresentaram um nível médio de adoção às tecnologias com índices igualmente medianos de participação na gestão da instituição de ensino superior à qual pertencem, um baixo índice de adoção de redes sociais e ferramentas da web 2.0 na oferta de produtos e serviços e um engessamento em relação à adoção de ferramentas que tragam inovação para a biblioteca. Os resultados mostram que os profissionais têm consciência das tecnologias que estão surgindo para as bibliotecas, mas não as utilizam efetivamente em suas instituições. Conclusões: o Distrito Federal como o estado com maior renda per capita do país possui um alto índice de matrículas no ensino superior, entretanto o elevado número de universitários e de Instituições de Ensino Superior não refletem em investimento nas bibliotecas. A situação do Distrito Federal em relação à adoção de novas tecnologias é estática, mediana. Não avança com a devida parcimônia, mas não está totalmente obsoleta, ou seja, oferta, de maneira razoável, produtos e serviços compatíveis com a necessidade de seus usuários
Diretrizes para o desenvolvimento de interfaces de busca para criança
Authors: Rodolfo Bonfeti Cristiane Lucy , Ferneda Edberto
Published: February 2020

Os estudos sobre busca e recuperação de informação destinados às crianças ainda é um tema de pouco destaque na literatura acadêmica. Na maioria dos sites destinados ao público infantil observa-se a preocupação em construir interfaces utilizando uma profusão de cores e imagens, e a restrição de acesso a conteúdo inadequado. A maneira de buscar informações ainda permanece semelhante aos mecanismos de busca para adultos. Com o desenvolvimento das tecnologias de informação e os novos métodos pedagógicos, as crianças se tornaram um grupo de usuários em rápido crescimento na Internet. Entre as diversas atividades on-line, as crianças usam mecanismos de busca da Web para coletar informações relacionadas aos seus interesses pessoais e atividades escolares. Porém, o comportamento informacional, as habilidades cognitivas e motoras das crianças são diferentes dos adultos, sendo necessário o desenvolvimento de mecanismos de busca direcionados para elas, a fim de melhor apoiá-las em suas tarefas de pesquisa. O objetivo deste trabalho é estabelecer um conjunto de diretrizes para o desenvolvimento de interface de busca e recuperação de informação destinados a um público tão diverso e heterogêneo como são as crianças. A metodologia desta pesquisa se caracteriza por ser bibliográfica e exploratória, tentando abarcar artigos de periódicos, teses, dissertação e livros que abordam aspectos cognitivos, comportamentais e pedagógicos relacionados ao uso de tecnologias por crianças.
Memória Colóquios Interdisciplinares GT1 Enancib 2018: as Mandalas da Interdisciplinaridade da Ciência da Informação
Authors: Pinheiro Lena Vania Ribeiro , Nisenbaum Moisés André , Pinto Fabiana de Melo Amaral G. , Amaral Janaynne , Ribeiro Débora Nascentes , Romeu Patricia , Souza Edivânio Duarte , Freire Isa Maria , Paletta Francisco Carlos
Published: February 2020

Com objetivo de propiciar o diálogo teórico e epistemológico sobre a interdisciplinaridade no campo da Ciência da Informação, este trabalho apresenta o relato do Colóquio As Mandalas da Interdisciplinaridade da Ciência da Informação.
Revelando a História recente da Paraíba e do Brasil
Authors: Higino Jonatã da Silva
Published: February 2020

Resenha deSCOCUGLIA, Afonso Celso. Os Arquivos da Ditadura no Brasil: Os Inquéritos Policiais no Superior Tribunal Militar (1964-1969). Pesquisa Brasileira em Ciência da Informação e Biblioteconomia.João Pessoa: v.14, n.3, p.98-106, 2019.
Another class ofwarped product skew CR-submanifolds of Kenmotsu manifolds
Authors: Hui Shyamal , Pal Tanumoy , Roy Joydeb
Published: February 2020

Recently, Naghi et al. [32] studied warped product skew CR-submanifold of the
form M1 xf M? of order 1 of a Kenmotsu manifold ?M such that M1 = MT x M?,
where MT, M? and M? are invariant, anti-invariant and proper slant
submanifolds of ?M. The present paper deals with the study of warped product
submanifolds by interchanging the two factors MT and M?, i.e, the warped
products of the form M2 xf MT such that M2 = M? x M?. The existence of such
warped product is ensured by an example and then we characterize such warped
product submanifold. A lower bound of the squared norm of second fundamental
form is derived with sharp relation, whose equality case is also considered.
On characterization of non-Newtonian superposition operators in some sequence spaces
Authors: Sağır Birsen , Erdoğan Fatmanur
Published: February 2020

In this paper, we define a non-Newtonian superposition operator NPf where f
: N x R(N)? ? R(N)? by NPf (x) = (f(k,xk))? k=1 for every non-Newtonian
real sequence x = (xk). Chew and Lee [4] have characterized Pf : ?p ? ?1 and
Pf : c0 ? ?1 for 1 ? p < ?. The purpose of this paper is to generalize
these works respect to the non-Newtonian calculus. We characterize NPf : ??
(N) ??1(N), NPf: c0(N)??1(N), NPf : c (N)? ?1 (N) and NPf : ?p (N)
? ?1 (N), respectively. Then we show that such NPf : ??(N) ? ?1 (N) is
*-continuous if and only if f (k,.) is *-continuous for every k ? N.
Inequalities for the eigenvalues of the positive definite solutions of the nonlinear matrix equation
Authors: Wu Guoxing , Xing Ting , Zhou Duanmei
Published: February 2020

In this paper, the Hermitian positive definite solutions of the matrix
equation Xs + A*X-tA = Q are considered, where Q is a Hermitian positive
definite matrix, s and t are positive integers. Bounds for the sum of
eigenvalues of the solutions to the equation are given. The equivalent
conditions for solutions of the equation are obtained. The eigenvalues of
the solutions of the equation with the case AQ = QA are investigated.
On operators with complex Gaussian kernels over Lp spaces
Authors: González B.J. , Negrína E.R.
Published: February 2020

In this paper we study new Lp-boundedness properties and Parseval-type
relations concerning the operators with complex Gaussian kernels over the
spaces Lp(R,w(x)dx), 1 ? p ? ?, where w represents any function greater than
or equal to one almost everywhere on R. Here, the Gauss-Weierstrass
semigroup is considered as a particular case of this analysis.
On a topology between Tα and Tγα
Authors: Andrijevic Dimitrije
Published: February 2020

Using the topology T in a topological space (X,T), a new class of
generalized open sets called ?-preopen sets, is introduced and studied.
This class generates a new topology Tg which is larger than T? and smaller
than T??. By means of the corresponding interior and closure operators,
among other results, necessary and sufficient conditions are given for Tg to
coincide with T? , T? or T??.
Some asymptotic results of the ruin probabilities in a bidimensional renewal risk model with Brownian perturbation
Authors: Lu Dawei , Du Jiao , Song Hui
Published: February 2020

In this paper, a bidimensional renewal risk model with constant force of
interest and Brownian perturbation is considered. Assuming that the
claim-size distribution function is from the subexponential class, three
types of the finite-time ruin probabilities under this model are discussed.
We obtain the asymptotic formulas for the three types, which hold uniformly
for any finite-time horizon.
Core and dual core inverses of a sum of morphisms
Authors: Li Tingting , Chen Jianlong , Wang Dingguo , Xu Sanzhang
Published: February 2020

Let C be an additive category with an involution *. Suppose that ? : X ? X is
a morphism of C with core inverse ?# : X ? X and ? : X ? X is a morphism of
C such that 1X + ?#? is invertible. Let ? = (1X+?#?)-1, ? = (1X+??#)-1, ?
= (1X-??#)??(1X-?#?), ? = ?(1X-?#?)?-1??#?,? = ??#??-1(1X-??#)?,? =
?*(?#(*?*(1X-??#)?. Then f = ? + ? ? ? has a core inverse if and only if
1X-?, 1X-? and 1X-? are invertible. Moreover, the expression of the
core inverse of f is presented. Let R be a unital *-ring and J(R) its
Jacobson radical, if a ? R# with core inverse a # and j ? J(R), then a + j ?
R# if and only if (1-aa#)j(1+a#j)-1(1-a#a) = 0. We also give
the similar results for the dual core inverse.
Linear connections with and without torsion, making parallel an integrable endomorphism on a manifold
Authors: Bejan Cornelia-Livia , Velimirovic Ana
Published: February 2020

Our study is developed in a general framework, namely a manifold M endowed
with a (1,1)- tensor field ?, which is integrable. The present paper solves
the following two problems: how many linear connections with torsion and
without torsion exist, having the property of being parallel with respect to
?. To count all these connections with the given properties, certain
algebraic techniques and results are used throughout the paper.
Skew m-complex symmetric operators
Authors: Chō Muneo , Ko Eungil , Lee Ji
Published: February 2020

In this paper we study skew m-complex symmetric operators. In particular, we
show that if T ? L(H) is a skew m-complex symmetric operator with a
conjugation C, then eitT , e-itT , and e-itT* are (m,C)-isometric for
every t ? R. Moreover, we examine some conditions for skew m-complex
symmetric operators to be skew (m-1)-complex symmetric.
Entwined Hom-modules and frobenius properties
Authors: Guo Shuangjian , Zhang Xiaohui , Ke Yuanyuan
Published: February 2020

Entwined Hom-modules were introduced by Karacuha in [13], which can be viewed
as a generalization of Doi-Hom Hopf modules and entwined modules. In this
paper, the sufficient and necessary conditions for the forgetful functor F : ?H(Mk)(?)CA ? ?H(Mk)A and its adjoint G : ?H(Mk)A ? ?H (Mk)(?)CA form
a Frobenius pair are obtained, one is that A?C and the C*?A are isomorphic as
(A;C*op#A)-bimodules, where (A,C,?) is a Hom-entwining structure. Then we
can describe the isomorphism by using a generalized type of integral. As an
application, a Maschke type theorem for entwined Hom-modules is given.
Chen’s type inequality forwarped product pseudo-slant submanifolds of Kenmotsu f-manifolds
Authors: Balkan Yavuz , Alkhaldi Ali
Published: February 2020

In the present paper, we consider non-trivial warped product pseudo slant
submanifolds of type M? xf M? and M? xf M? of Kenmotsu f-manifold M?.
Firstly, we get some basic properties of these type warped product
submanifolds. Then, we prove the general sharp inequalities for mixed
totally geodesic warped product pseudo slant submanifolds and also we
consider equality cases. Also generalizes some previous inequalities as
well.
Group-regular rings
Authors: Mary Xavier , Patrício Pedro
Published: February 2020

We propose different generalizations of unit-regularity of elements in general
rings (non necessarily unital rings). We then study general rings for which
all elements have these properties. We notably compare them with
unit-regular ideals and general rings with stable range one. We also prove
that these rings are morphic rings.
L1-convergence of double trigonometric series
Authors: Singh Karanvir , Modi Kanak
Published: February 2020

In this paper we study the pointwise convergence and convergence in L1-norm
of double trigonometric series whose coefficients form a null sequence of
bounded variation of order (p,0),(0,p) and (p,p) with the weight
(jk)p-1 for some integer p > 1. The double trigonometric series in this
paper represents double cosine series, double sine series and double cosine
sine series. Our results extend the results of Young [9], Kolmogorov [4] in
the sense of single trigonometric series to double trigonometric series and
of M?ricz [6,7] in the sense of higher values of p.
Approximation of the block numerical range of block operator matrices
Authors: Yu Jiahui , Chen Alatancang , Huang Junjie , Wu Jiaojiao
Published: February 2020

In this paper we obtain an approximation of the block numerical range of
bounded and unbounded block operator matrices by projection methods.
Radii of starlikeness and convexity for harmonic functions defined by shear construction
Authors: Aghalary Rasoul , Rad Mehdi , Joshi Santosh
Published: February 2020

Using the convolution of harmonic functions, we introduce a generalization
for a previously defined class of right half-strip harmonic mappings and
determine sharp radii of univalence, full convexity and starlikeness for
such functions.
Generalized para-Kähler spaces in Eisenhart’s sense admitting a holomorphically projective mapping
Authors: Petrovic Milos
Published: February 2020

We relax the conditions related to the almost product structure and in such a
way introduce a wider class of generalized para-K?hler spaces. Some
properties of the curvature tensors as well as those of the corresponding
Ricci tensors of these spaces are pointed out. We consider holomorphically
projective mappings between generalized para-K?hler spaces in Eisenhart?s
sense. Also, we examine some invariant geometric objects with respect to
equitorsion holomorphically projective mappings. These geometric objects
reduce to the para-holomorphic projective curvature tensor in case of
holomorphically projective mappings between usual para-K?hler spaces.
On [p,q]-order of growth of solutions of complex linear differential equations near a singular point
Authors: Long Jianren , Zeng Sangui
Published: February 2020

We investigate the [p,q]-order of growth of solutions of the following
complex linear differential equation f(k)+Ak-1(z) f(k-1) + ...+
A1(z) f? + A0(z) f = 0, where Aj(z) are analytic in C? - {z0}, z0 ? C. Some
estimations of [p,q]-order of growth of solutions of the equation are
obtained, which is generalization of previous results from Fettouch-Hamouda.
Relative cyclic subgroup commutativity degrees of finite groups
Authors: Lazorec Mihai-Silviu
Published: February 2020

In this paper we introduce and study the relative cyclic subgroup
commutativity degrees of a finite group. We show that there is a finite
group with n such degrees for all n ? N*\{2} and we indicate some classes
of finite groups with few relative cyclic subgroup commutativity degrees. In
the end, we prove that the set containing all relative cyclic subgroup
commutativity degrees of finite groups is dense in [0,1].
Characterization theorems on warped product semi-slant submanifolds in Kenmotsu manifolds
Authors: Ali Akram , Uddin Siraj , Alkhaldi Ali
Published: February 2020

In this paper, we deal with the study of warped product semi-slant
submanifolds isometrically immersed into a Kenmotsu manifold. We prove two
characterization theorems for a warped product semi-slant submanifold in
Kenmotsu manifolds in terms of the tensor fields.