bluuebunny/crossref_metadata_2025 huggingface dataset:
Media Visibility in the Digital Context
Authors: Scheid Daiane
Published: April 2022

This chapter promotes a reflection on the ways in which the media affect communicative practices of organizations, especially in the construction of their visibility. It explores the concept of visibility and how this phenomenon has been changing with the development of the media, especially with social media. The theoretical framework covers the mediatic and digital context, including other concepts: organizational communication, strategic communication, mass media, and social media. Following this, the main focus is on visibility, by considering visibility as a social and media phenomenon and its particularities in social media. Implications of these issues for organizations and their communicative practices are reported, and some solutions and recommendations focused on a strategic and responsible performance by organizations in managing their (in)visibility. Some directions for future research are listed and then the conlusion returns to some central ideas.
Beyond the Corporate Digital Newsroom 2.0
Authors: Pereira Sandra Martins , Ferreira Rita Nunes
Published: April 2022

The focus of this chapter is to propose a reflection on the strategic potential of corporate digital newsrooms, usually a section incorporated into corporate websites with content having in mind the journalist's interest. The central question lies in knowing whether it will be possible to identify an evolution in corporate digital newsrooms, with companies redefining their media relations strategies beyond a 2.0 model, to meet the so-called 3.0 newsrooms, typical of a cyber journalism scenario, which operates in the virtual environment. This idea was taken from an article by Neto et al. that explored newsrooms at 'O Globo' in Brazil, 'La Nación' in Costa Rica, and 'BBC' in the UK, searching for differences between newsroom models 1.0, 2.0, and 3.0. Thus, two areas in the field of communication (journalism and corporate communication) come together to assess the role that corporate digital newsrooms play in the interactions between both sides.
Place Branding, Digital Communication, and Citizenship
Authors: Sampaio Adriano de Oliveira , Andrade José Gabriel
Published: April 2022

Since the 1990s, studies have been developed with the aim of understanding citizen participation in e-government, e-citizenship experiences, etc. Motivated by this context of reflexivity, governments began to be questioned about their management, to account for public debates and implement public policies through digital communication. Also strongly, and in this same time frame, city governments start to invest in self-promotion strategies in these territories in order to attract tourists in place branding strategies. Faced with this phenomenon, this chapter intends to reflect on the existing tensions between digital communication strategies focus on citizens and tourists in Brazil. It intends to identify the approximations and distances in the strategic communication developed by some Brazilian city governments, in one side, to animates citizen's public opinion in order to constructs public policies and, in the other hand, to position the cities as attractive tourist destinations for visitors.
The Effects of Spin-Coating Rate on Surface Roughness, Thickness, and Electrochemical Properties of a Pt Polymer Counter Electrode
Authors: Chawarambwa Fadzai Lesley , Putri Tika Erna , Attri Pankaj , Kamataki Kunihiro , Itagaki Naho , Koga Kazunori , Shiratani Masaharu
Published: April 2022

In a dye-sensitized solar cell (DSSC) the CE is responsible for the collection of electrons from the external circuit and the electrocatalysis reaction of the electrolyte. This paper reports the effect of spin-coating rate on the surface roughness, film thickness, and electrochemical properties of a Pt polymer counter electrode (CE). In this work, the spin-coating rate has been investigated in the range 1000-6000 rpm and the results indicate that low spin-coating speeds produce the thickest films with the smoothest surfaces, while high spin speeds produce thinner films with higher surface roughness. The thickness of the film decreased from 7.03 μm at 1000 rpm to 1.30 μm at 6000 rpm. Results also indicate a decrease in electrocatalysis properties and conductivity with the increase in film spin-coat rate. The resistance at the CE/electrolyte interface decreased from 9.3 Ω at 1000 rpm to 14.8 Ω at 6000 rpm. The spin-coating rate also affects the light transmittance of the CE and photovoltaic characteristics of the DSSC, such as current density and overall cell conversion efficiency. This study demonstrates a method to develop cost-effective counter electrodes for application in bifacial solar cells.
Morphing Air Foil NACA 6412 Inverted Using Flexure Hinges
Authors: Perez Adolfo , Roman Armando
Published: April 2022

In this paper a NACA 6412 regulated shape will be inverted to understand the behaviour of the air flow around the shape, this with the intention of convert the lifting effect to a downforce and braking effect changing the shape of the wing, displacing the trailing edge approximately 100mm over the first stage position. Using analysis as Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) to depicts the operational parameters of the two stages of the inverted NACA 6412 air foil. To reach this displacement, the main idea is using a flexure hinge designed as a M-Shape beam, this flexure hinge works as a spring to allows to the morphing wing moves around the 100mm of trailing edge displacement and the spring-beam effect creates an inverse force, when the wing moves close to the110mm and does not exceed the yield strength of the Acrylonitrile butadiene styrene (ABS) of 74Mpa. As a result of this motion parameters, we could integrate a flexure hinge to an inverted air foil regulated to reach braking and downforce forces in order to slow down vehicles or aerodynamic devices.
Characterization of Altered Gene Expression and Histone Methylation in Peripheral Blood Mononuclear Cells Regulating Inflammation in COVID-19 Patients
Authors: Yang Xiaoming , Rutkovsky Alex C , Zhou Juhua , Zhong Yin , Reese Julian , Schnell Timothy , Albrecht Helmut , Owens William B , Nagarkatti Prakash S , Nagarkatti Mitzi
Published: April 2022

The pandemic of COVID-19 has caused >5 million deaths in the world. One of the leading causes of the severe form of COVID-19 is the production of massive amounts of proinflammatory cytokines. Epigenetic mechanisms, such as histone/DNA methylation, miRNA, and long noncoding RNA, are known to play important roles in the regulation of inflammation. In this study, we investigated if hospitalized COVID-19 patients exhibit alterations in epigenetic pathways in their PBMCs. We also compared gene expression profiles between healthy controls and COVID-19 patients. Despite individual variations, the expressions of many inflammation-related genes, such as arginase 1 and IL-1 receptor 2, were significantly upregulated in COVID-19 patients. We also found the expressions of coagulation-related genes Von Willebrand factor and protein S were altered in COVID-19 patients. The expression patterns of some genes, such as IL-1 receptor 2, correlated with their histone methylation marks. Pathway analysis indicated that most of those dysregulated genes were in the TGF-β, IL-1b, IL-6, and IL-17 pathways. A targeting pathway revealed that the majority of those altered genes were targets of dexamethasone, which is an approved drug for COVID-19 treatment. We also found that the expression of bone marrow kinase on chromosome X, a member of TEC family kinases, was increased in the PBMCs of COVID-19 patients. Interestingly, some inhibitors of TEC family kinases have been used to treat COVID-19. Overall, this study provides important information toward identifying potential biomarkers and therapeutic targets for COVID-19 disease.
Cutting Edge: Unconventional CD8+ T Cell Recognition of a Naturally Occurring HLA-A*02:01–Restricted 20mer Epitope
Authors: Meeuwsen Miranda H , Wouters Anne K , Hagedoorn Renate S , Kester Michel G D , Remst Dennis F G , van der Steen Dirk M , de Ru Arnoud , van Veelen Peter A , Rossjohn Jamie , Gras Stephanie , Falkenburg J H Frederik , Heemskerk Mirjam H M
Published: April 2022

Unconventional HLA class I–restricted CD8+ T cell epitopes, longer than 10 aa, have been implicated to play a role in human immunity against viruses and cancer. T cell recognition of long peptides, centrally bulging from the HLA cleft, has been described previously. Alternatively, long peptides can contain a linear HLA-bound core peptide, with a N- or C-terminal peptide “tail” extending from the HLA peptide binding groove. The role of such a peptide “tail” in CD8+ T cell recognition remains unclear. In this study, we identified a 20mer peptide (FLPTPEELGLLGPPRPQVLA [FLP]) derived from the IL-27R subunit α gene restricted to HLA-A*02:01, for which we solved the crystal structure and demonstrated a long C-terminal “tail” extension. FLP-specific T cell clones demonstrated various recognition modes, some T cells recognized the FLP core peptide, while for other T cells the peptide tail was essential for recognition. These results demonstrate a crucial role for a C-terminal peptide tail in immunogenicity.
Vaccine hesitancy: Pattern of side effects of the first dose of AstraZeneca COVID-19 vaccine among healthcare workers in Enugu
Authors: Iyidobi Emmanuel Chino , Iyidobi Theclar Ogochukwu , Ozioko Uche Sebastine , Onu Justus Uchenna , Muomah Rosemary Chizobam , Iorfa Steven Kator , Aneke Arinze Victor
Published: April 2022

Vaccination is a basic public health intervention and its advancement in prevention of infectious diseases that plague humans has been evolving and helps to save humanity from extinction. This study aims to evaluate the common side effects of AstraZeneca COVID-19 vaccine and willingness to receive second dose among healthcare workers within Enugu metropolis. It was a cross -sectional survey carried out from March to June, 2021 using validated self-administered questionnaire among 89 participants. Data analysis were conducted using SPSS version 21.0 (p<0.05). The median age of the participants was 38 years and 71 (79.8%) of them constitute the frontline health-workers. Post vaccination side effects was reported by 78 (87.6%) of the participant. Among the reported side effects, pain at the injection site was the most common 55 (62%) while sore throat, chills and rigor were the least occurring in 13 (14.6%) respectively. The association between the presence of side effect of Oxford AstraZeneca vaccine and willingness to receive the second dose of the vaccine was (p=1.00) while the duration and number of the side effects associated with the willingness to receive the second dose of the vaccine were not statistically significant (p>0.05) respectively. The Oxford AstraZeneca COVID-19 vaccine has high safety profile margin, though with some side-effects which could not deter participants from getting vaccinated. Education of the masses on safety of current vaccines and future vaccines should be an integral component of public health initiatives aimed at achieving the desired herd immunity.
Diritti e doveri nella medicina predittiva. Sintesi e considerazioni a margine di un recente seminario
Authors: Mele Vincenza
Published: April 2022

L'autore analizza le posizioni della ''bioetica laica" (ad ispirazione soggettivistica) in tema di medicina predittiva, confrontandole con quella della "bioetica cattolica" (ad ispirazione personalista), traendo spunto da un recente seminario che si è svolto su questo tema. L'argomento bioetica e medicina predittiva viene affrontato sia nell'ambito della diagnostica prenatale sia in quello della diagnostica postnatale. Sono indicati quali principi etici di riferimento prioritari: il principio della difesa della vita fisica (nell'orizzonte della bioetica personalista) ed il principio di autonomia (nell'orizzonte della bioetica soggettivistica).
Paraurethral leiomyoma in a 52 year-old woman: Clinical and diagnostic features and surgical treatment
Authors: Fiorello Nicolò , Di Benedetto Andrea , Mogorovich Andrea , Summonti Daniele , Benvenuti Sandro , Sepich Carlo Alberto
Published: April 2022

Leiomyomas are benign tumors of smooth muscle origin occurring throughout the genitourinary system. Sometimes paraurethral leiomyoma can cause a bulking effect on the bladder without gross involvement of the urethra. In our work we describe the case of a woman with a vulvar mass found after self-examination. She was investigated pelvic Magnetic Resonance Imaging (MRI) which showed a well encapsulated solid mass, about 24mm (maximum diameter) located at paraurethral level, on right anterolateral side, It showed uptake of contrast, with a compressive-dislocative effect on the urethra, without involvement of the sphincters. Surgery was performed with excission “en-block” of the mass. The procedure was well tolerated under spinal anesthesia and the patient was discharged 24h later, after removing the bladder catheter. No signs of haematuria nor symptoms of incontinence were reported in the following weeks. Pathology of the excised specimen revealed complete resection of a benign, submucus leiomyoma. Although leiomyomas are very common in organs such as the uterus, the presentation of a urethral leiomyoma, as found in the present case, is very rare. The description of these lesions is however important to create a scientific path that can clarify the cause and the evolution. It can also represent an evolution for imaging through MRI, improving its framework and distinguishing it from malignant tumors that require another surgical strategy.
Combined Sub-temporal and Pterional Exposure for Clipping of Posterior Cerebral Artery Aneurysm
Authors: Menon Girish , Varsha Arla Sai , Kumar Vinod , Hegde Ajay
Published: April 2022

Posterior cerebral aneurysms are rare posterior circulation aneurysms. Clinical presentation can be varied from life-threatening subarachnoid hemorrhage to mass effect on adjacent structures. Due to their complex anatomical location, microsurgical clipping is not without challenges. Several approaches have been described based on the location of the aneurysm in relation to the segment of the posterior cerebral artery (PCA). We describe a combined approach for surgical clipping of a postcommunicating anterior segment PCA aneurysm.
Pattern of Surgical Emergencies in Rural Southwestern Nigeria
Authors: Ibrahim Azeez Oyemomi , Abiola Paul O. , Aremu Shuaib Kayode , Shabi Olabode M. , Agbesanwa Tosin Anthony
Published: April 2022

Introduction:

Considering the magnitude of deaths prevailing in the accident and emergency department (AED) in health facilities of sub-Sahara Africa, there is a need to have information on the burden of admissions and deaths due to surgical emergencies. Few studies in Nigerian hospitals in urban and suburban areas have been documented, but none in the rural setting. The objectives of this study were to ascertain the sociodemographic profile, causes and outcomes of admissions, and the pattern and causes of deaths due to surgical emergencies.

Methods:

A retrospective survey using a data form and a predetermined questionnaire was used to review the patients admitted for surgical emergencies at the AED of a tertiary hospital in rural southwestern Nigeria from January 2015 to December 2019. The data were analyzed using SPSS version 22.0. The results were presented in descriptive and tabular formats.

Results:

Surgical emergencies constituted 43.9% of all admissions. The mean age of admissions was 42 ± 16.9 years, and majorities were in the young and middle-aged groups. There were more males (66.4%) than females (33.6%). Trauma(60.9%) of which road traffic accident (RTAs)(56.0%), was the leading mechanism of trauma. The mortality rate was 5.4% and was caused majorly by RTAs (33.0%), diabetes mellitus foot ulcers (11.0%), and malignancies (9.8%).

Conclusion:

In this study, surgical emergencies constituted 43.9%, and a majority of the patients were male. Trauma caused by RTA is the most cause of admission. The mortality rate was 5.4%. This finding may provide an impetus for prospective research on this outcome.
A Case of Well-Differentiated Squamous Cell Carcinoma in Vulval Lichen Sclerosus
Authors: Das Pankaj , Arora Sandeep , Sharma Pragya , Singh Gautam Kumar , Verma Prachi
Published: April 2022

Lichen sclerosus (LS) et atrophicus is a known premalignant condition affecting both sexes. Squamous cell carcinoma is the most common malignancy seen in LS et atrophicus. We report a case of 42-year-old female suffering from vulval LS et atrophicus for 12 years who developed squamous cell carcinoma. It is imperative to counsel the patients with LS regarding the malignant potential and actively monitor them for better outcome in terms of survival as well as quality of life.
Post-COVID Neurological Complication; A Case Series and Review of the Literature
Authors: Mamidi Sreenivasu , Soni Rahul , Dhull Pawan , Singh Sindhu , Muthukrishan J.
Published: April 2022

Introduction:

There are certain post-coronavirus disease (COVID) neurological syndromes which have been reported such as cerebrovascular diseases, cerebral venous thrombosis, peripheral neuropathy, encephalitis, encephalopathy, cerebellar ataxia, facial palsy, and myositis. However, most of these are isolated case reports. In this case series, we discuss the post-COVID neurological complications such as facial palsy, lateral rectus palsy, cerebellar ataxia, peripheral neuropathy, and stroke which occurred within 2 weeks after complete recovery from COVID.

Methods:

This multicentric case series is from three large tertiary care hospitals in northern and central India. We have reviewed seven patients with recent-onset neurological symptoms who had recovered from COVID infection within 2 weeks. We have retrospectively studied the clinical profile and radiological imaging during COVID infection.

Results:

Three out of these seven patients had received steroids during COVID treatment. None of our cases had any neurological manifestations during their COVID infection. The likelihood of neurotransmission through the cribriform plate via the olfactory bulb was low, as none of our patients had anosmia. None of the patients in the case series showed features of systemic hyperinflammatory syndrome, making the possibility of macrophage activation syndrome less likely.

Conclusion:

We hypothesize that antibodies against the coronavirus post recovery from COVID are responsible for these post-COVID neurological complications. Higher likelihood of these complications after rapid tapering off steroids may further corroborate this mechanism, as the antibody levels rise after steroid withdrawal. Titers of antibodies to SARS COV-2 virus in the postinfection period in these cases may have further helped prove our hypotheses which can be considered in future studies on the subject.
Effect of COVID-19 Lockdown on Glycemic Status of Patients with T2DM and Effects of Various Factors Involved
Authors: Kumar Yogesh , Nachankar Amit
Published: April 2022

Background:

The recent coronavirus disease 2019 lockdowns forced people to stay indoors, resulting in lower physical activity, and change in dietary patterns, impacting glycemic control in the diabetic population. We aimed to assess the impact of the 3-month lockdown on glycemic control among outpatients with type 2 diabetes (T2DM) being treated at our hospital.

Study Design:

This retrospective study included data of outpatients aged ≥30 years with preexisting T2DM, regularly attending the clinic during the prelockdown period and who came for follow-up postlockdown. The primary outcome measures were change in glycated hemoglobin (HbA1c), fasting blood glucose sugar (FBG), and postprandial blood sugar (PPBG) compared to the last value before the lockdown.

Results:

A total of 200 (male: female – 83:117) patients with a mean (standard deviation [SD]) age of 58.0 (10.8) years were included. The mean (SD) interval between the pre- and post-lockdown visit was 3.9 (0.9) months, and 58.5% of the patients were compliant with the medication. The mean HbA1c levels increased significantly by 1.1 (P = 0.000), FBG by 21.9 mg/dL (P = 0.000), PPBG by 28.0 mg/dL (P = 0.000), and weight by 1.6 kg (P = 0.000), from pre- to post-lockdown visit. The patients noncompliant to therapy had a significantly higher increase in glycemic parameters. The results showed a significant correlation between the interval of follow-up and treatment compliance with increase in glycemic parameters and weight.

Conclusion:

The results of this study revealed that there was a negative impact of lockdown on glycemic control in T2DM patients, highlighting the need for telehealth strategies to ensure the well-being of diabetic patients during such calamities.
Síndrome doloroso regional complejo, a propósito de un caso. La importancia del diagnóstico precoz
Authors: Regal-Ramos Raúl , Baides-Gonzalvo Pilar , Sánchez-Galán Luis , Herreros-Portoles Gema
Published: April 2022

El síndrome de dolor regional complejo es una enfermedad de etiopatogenia poco conocida que se desarrolla tras un fenómeno nocivo desencadenante y que se manifiesta por dolor espontáneo o alodinia/hiperalgesia no limitado a la distribución territorial de un nervio periférico y desproporcionado al episodio desencadenante. Se presenta un caso que evoluciona con dolor mantenido en el tiempo, cambios tróficos e impotencia funcional pese al uso de múltiples técnicas terapéuticas. El diagnóstico precoz y el tratamiento temprano son fundamentales para conseguir una evolución favorable y evitar complicaciones discapacitantes.
An Evaluation of The Translations of The Holy Qur'an in Bengali in the Bangladesh Period
Authors: Rahman Mizanur
Published: April 2022

The creator of the whole universe revealed the holy Qur'an to all humanity. This message concerns not only the owners of the language from which it descends, but all humanity. So, it is necessary to translate this message into those languages for people from different cultures to understand. However, whether the Qur'an will be translated into other languages has been discussed throughout history, and positive and negative opinions about the issue continue. As a Muslim-dominated country, Bangladesh has been working on the translation of the Qur'an since the 18th century. This article discussed the translations of the Qur'an into Bengali in the Bangladesh period, worked to understand and explain the Qur'an and reflects the effect of the Qur'an on social life.
Blinded by Science
Authors: Wastell David , White Susan
Published: April 2022

This timely book critically examines the capabilities and limitations of new areas of biology, especially epigenetics and neuroscience, that are used as powerful arguments for developing social policy in a particular direction, exploring their implications for policy and practice.
Locating Localism
Authors: Wills Jane
Published: April 2022

This book combines political theory with attention to political practice to explore the development of localism as a new mode of statecraft. It highlights the challenges of the state devolving itself and the importance of citizens having the freedom, incentives and institutions needed to act.
Changing Communities
Authors: Mayo Marjorie
Published: April 2022

Issues of displacement and dispossession have become defining characteristics of a globalised twenty-first century. People are moving within and across national borders, whether displaced, relocated or moving in search of better livelihoods. This book brings theoretical understandings of migration and displacement together with empirical illustrations of the creative, cultural ways in which communities reflect upon their experiences of change, and how they respond, including through poetry and story-telling, photography and other art forms, exploring the scope for building communities of solidarity and social justice. The concluding chapters identify potential implications for policy and professional practice to promote communities of solidarity, addressing the structural causes of widening inequalities and taking account of different interests, including those related to social class, gender, ethnicity, age, ability and faith.
Supporting Victims of Hate Crime
Authors: Chahal Kusminder
Published: April 2022

This practical guide provides user-friendly, concise, expert and up-to-date guidance for both new and experienced hate crime caseworkers and advocates. Full of relevant, up-to-date evidence based research and policy, it will enable practitioners to be confident and knowledgeable in supporting victims of hate crime.
Obama’s Welfare Legacy
Authors: Daguerre Anne
Published: April 2022

Using new research, Anne Daguerre examines Obama’s legacy on welfare and antipoverty policies, focusing in particular on the Temporary Assistance for Needy Families (TANF) and the Supplemental Nutrition Assistance Program (SNAP).
Development of Lightweight Thin-Walled Aluminum Bumper Reinforcement Adhered with Unidirectional CFRP Sheet
Authors:   Toyota Motor Corporation, JAPAN, Miura Masaya , Yasumasa Horibe ,   Toyota Motor Corporation, JAPAN, Michiharu Ishii ,   Toyota Motor Corporation, JAPAN, Takaoka Kanji ,   Toyota Motor Corporation, JAPAN, Kitakata Shintaro ,   Toyota Motor Corporation, JAPAN, Mikuni Atsushi ,   Toyota Motor Corporation, JAPAN
Published: April 2022

"Since bumper reinforcements are positioned at front/rear ends of vehicles, weight reduction of the bumper reinforcements improves vehicle dynamic performance by reducing a yaw moment of inertia. CFRP (Carbon Fibre Reinforced Plastic) composites are attractive lightweight materials due to their excellent specific strength and rigidity. However, because of their relatively high cost, applications of CFRP materials to vehicle structural parts are limited. In this study, we developed a lightweight structural part which consists of a thin-walled Aluminum bumper reinforcement with a unidirectional CFRP sheet, in order not to increase part cost by reducing amount of Aluminum and by using only a little amount of CFRP. Compared to Aluminum, unidirectional CFRP sheets have even higher tensile strength and modulus. When vehicles crush, bumper reinforcements may be subjected to bending force. If a unidirectional CFRP sheet adhered on a tensile side of an Aluminum bumper reinforcement, not only Aluminum thickness on the tensile side but also thickness on the compression side can be reduced due to movement of a bending neutral axis. Bending strength of the developed parts can’t be predicted by a full plastic moment which could be used to predict metal parts’ bending strength because CFRP don’t deform plastically. In this study, based on Bernoulli-Euler theory, the bending neutral axis was decided considering elastic/plastic areas of the Aluminum bumper reinforcement, and bending strength of the part was predicted. To valid the calculation method, three-point bending tests on the parts were carried out. Experimental data of bending strength were in the range of predicted bounds. In addition, after the peak load, the load decreased gradually, like conventional all metal bumper reinforcements, without delamination of the unidirectional CFRP sheet. In order to launch the developed part, robustness of part’s performance was also evaluated. Finally, the part was adapted to a rear bumper reinforcement of LEXUS RC-F. The part weight is 11 % lighter compared to a conventional all Aluminum bumper reinforcement."
An Autoethnographic Reflection of My Academic Privileges While Working with High School Interns
Authors: Hogan Eric
Published: April 2022

In this article, I explore my academic privileges through using the autoethnographic method while working in an alternative school and with interns hired for an agricultural internship. Academic privilege is contextualized as those factors in an education setting that benefit some and not all; with consideration of various personal and social factors including, but not limited to, skin color, aspects of identity, economic disparity, resource availability, social relationships, social settings, etcetera. Data collection involved observations within the school and when working with the interns. There were also informal conversations. The observations and informal conversations were documented as field notes to use for personal audio recordings. The personal audio recordings were transcribed and thematically coded. The three themes were: (1) At the Alternative School, (2) Criminalization and Prejudice, and (3) Future Opportunities for The Interns. This article allows the reader to journey with me to a place of introspection, reflexivity, and contemplation.
Calidad de productos de investigación en repositorios de tesis mexicanos y guatemaltecos
Authors: Aguilera Arévalo Humberto Emilio
Published: April 2022

OBJETIVO: evaluar la calidad de los productos de investigación en repositorios de acceso abierto en México y Guatemala. MÉTODO: en este estudio se usó un diseño cuantitativo, descriptivo y transversal. Se obtuvo una muestra de conveniencia de 17 estudios de 13 repositorios institucionales de México y 8 estudios de 6 repositorios de Guatemala. El universo consistió en 46 repositorios institucionales de México (enlistados en la Red Mexicana de Repositorios Institucionales) y 7 de Guatemala. Se construyó un índice basado en el modelo de calidad de investigación de Mårtensson et al. (2016).  RESULTADOS: se encontró que los aspectos ser creíble y alineada fueron bajos en los estudios. Asimismo, el indicador rigurosidad (aspecto ser creíble) y generalizable (aspecto contributivo) también fueron bajos. El aspecto contributivo fue moderado y el comunicable alto en los estudios. CONCLUSIÓN: se concluyó que los estudiantes tienen dificultades en implementar buenas prácticas de investigación por deficiencias en el entrenamiento del uso de metodologías de investigación, análisis de datos y fallas en la supervisión de las tesis.
Some Remarks on Various Schur Convexity
Authors:   Faculty of Mathematical Sciences, Shahrekord University, Iran, GORJIZADEH FARZANEH , EFTEKHARI NOHA
Published: April 2022

The aim of this work is to investigate the Schur convexity, Schur geometrically convexity, Schur harmonically convexity and Schur power convexity of some special functions. Some sufficient conditions are obtained to guarantee the above-mentioned properties satisfy. We attain some special inequalities. Also, we obtain some applications of main results.
Riesz Lacunary Sequence Spaces of Fractional Difference Operator
Authors:   Shri Mata Vaishno Devi University, India, RAJ KULDIP , SAINI KAVITA , SAWHNEY NEERU
Published: April 2022

In this paper, we intend to make new approach to introduce and study some fractional diﬀerence sequence spaces by Riesz mean associated with inﬁnite matrix and a sequence of modulus functions over n -normed spaces. Various algebraic and topological properties of these newly formed sequence spaces have been explored and some inclusion relations concerning these spaces are also establish. Finally, we make an eﬀort to study the statistical convergence through fractional diﬀerence operator.
xistence Theorems for a Coupled System of Nonlinear Multi- Term Fractional Differential Equations with Nonlocal Boundary Conditions
Authors:   Faculty of Science, King Abdulaziz University, Saudi Arabia, AHMAD BASHIR , ALSAEDI AHMED , ALGHAMDI NAJLA , NTOUYAS SOTIRIS K. ,   University of Ioannina, Greece
Published: April 2022

We discuss the existence and uniqueness of solutions for a coupled system of nonlinear multi-term fractional diﬀerential equations complemented with coupled nonlocal boundary conditions by applying the methods of modern functional analysis. An example illustrating the uniqueness result is presented. Some interesting observations are also described.
Enumerating Possible Molecular Formulae in Mass Spectrometry Using a Generating Function Based Method
Authors:   The University of Western Australia, Pert, Li Sean , Bohman Björn , Jayatilaka Dylan
Published: April 2022

What molecular formulae correspond to a given mass M? Here, we address this problem - the compomer problem of mass spectrometry. We describe, implement, and test a straightforward and practical aufbau algorithm which leads to the molecular formula tree from which all possible solutions may be obtained. The algorithm was inspired from the generating function method used in combinatorics, to count the number of compomers. The molecular formula tree can be generated in linear time with regards to the number of elements N, and in quadratic time with respect to the mass M; and we demonstrate that the memory requirements do not exceed that of a standard laptop for the formula of a small molecule, say about 10 elements and a mass of 1000 Da. Nevertheless, we still discuss and demonstrate how a range of heuristics can be used to mitigate the memory requirements.
UTICAJ FOLIJARNE PRIMENE NPK ĐUBRIVA SA MIKROELEMENTIMA I EFEKTIVNIH MIKROORGANIZAMA NA PRINOS SOJE
Authors:   Faculty of Biofarming, Megatrend University, Serbia, Dozet Gordana , Đukić Vojin , Miladinović Jegor , Mamlić Zlatica , Cvijanović Gorica , Jakšić Snežana , Kandelinskaja Olga
Published: April 2022

High yields and stable soybean production are under direct influence of plant nutrient quantity and availability. The aim of this research was to examine the effect of NPK fertilizer with trace elements and effective microorganisms on the yields of three soybean varieties which belong to different maturation groups. Effective microorganisms and NPK fertilizer with trace elements statistically very significantly increase soybean yield. Effective microorganisms increased the yield by 7.28%, NPK fertilizer with trace elements by 11.20%, while the combination of effective microorganisms and NPK fertilizer with trace elements increase soybean yield by 14.86%.
Análisis de la sensibilidad, respuesta de pequeña señal y respuesta dinámica de un sensor GMR
Authors: Romero-Arismendi Nestor , Martínez-Ortiz Pedro , Espina-Hernández José H. , Pérez-Benítez José
Published: April 2022

En este trabajo se lleva a cabo el análisis de la sensibilidad de un sensor magnético, basado en el fenómeno de magnetorresistencia gigante (GMR), cuando se utiliza en la medición de campos magnéticos variantes en el tiempo en superposición con componentes estáticas. La característica de transferencia del sensor GMR se obtuvo experimentalmente midiendo el campo magnético generado por una bobina de Helmholtz. A partir de la característica de transferencia experimental se obtuvo computacionalmente la respuesta de sensibilidad del sensor GMR y posteriormente se validó experimentalmente. Se determinó una nueva región de operación del sensor GMR en la respuesta de sensibilidad del sensor GMR, la cual tiene un comportamiento lineal. Los resultados demuestran que, es indispensable utilizar un campo de polarización para garantizar un mejor desempeño del sensor GMR en las mediciones de campos magnéticos pequeños. El valor del campo de polarización utilizado depende del tipo de campo magnético en función del tiempo que se vaya a medir (AC o DC). Finalmente, en este artículo se presentan y proponen los correspondientes rangos de valores de los campos magnéticos de polarización.
Mantenimiento centrado en la confiabilidad a equipos en industria de conservas de atún
Authors: Muñoz Cevallos Jorge Luís , Cantos Macías Manuel
Published: April 2022

El presente trabajo tiene la finalidad identificar y solucionar los problemas específicos que se encuentran en una línea de producción de conservas de atún de la Empresa EUROFISH de Manta, mediante la implementación del programa de mantenimiento centrado en la confiabilidad (RCM) en las máquinas presentes en la línea en mención. En la industria de las conservas, el RCM a menudo se considera la demanda recursos. Sin embargo, es posible hacer que el proyecto sea manejable comenzando con un sistema de evaluación de los equipos críticos. Para llevar a cabo este proceso, se aplicaron los métodos: análisis de criticidad y el análisis de efectos y modos de fallas (AMEF). Se diseñó el plan de mantenimiento de acuerdo a lo detallado por el AMEF y el Diagrama de Pareto, donde se especifican tareas de prevención que no solo se concentran en operaciones de lubricación o engrase, sino el empleo de procesos de inspección y control en todas las medidas de mantenimiento que se han propuesto. Se encontró que el mejor indicador para medir la confiabilidad es el tiempo promedio entre paradas (MTBF) que indica un incremento en la confiabilidad del equipo y una mejora en la calidad de los trabajos de mantenimiento a 3,59, lo que se refleja en la disponibilidad de los equipos de la línea de producción. Pues al aplicar el plan de mantenimiento propuesto se logra un 87%, lo que se considera un porcentaje aceptable dada la situación de la empresa.
Penerapan Algoritma VLBE Pada Aplikasi Penyimpanan File Secara Online
Authors: Manalu Sujanne
Published: April 2022

In today's technological developments, information can be quickly found through increasingly rapidly developing technologies, such as the internet. Many people have files or data that they want to save into online applications. However, the large size of the data results in waste in the use of storage media and the process of sending data. To save those two things, data compression is needed. Data compression is the process of reducing the size of a data to produce a digital representation that is dense or compact but can still represent the quantity of information contained in the data. There are so many algorithms to compress existing data, but none of these algorithms is optimal in compressing text data. This research was conducted to reduce a file size before uploading it to the application using the VLBE (Variable Length Binary Encoding) algorithm. Variable Length Binary Encoding Algorithm is a data compression algorithm that encodes each character by sorting the characters by frequency and sorting stably to form a series of bits. The advantage of this VLBE algorithm is that the variable-length code can allow the source to be compressed with zero error and can be read back by Solomon symbols.
Implementasi Algoritma C.45 Pada Data Pengolahan Limbah Kelapa Sawit
Authors: Rejeki Wahyu Sri
Published: April 2022

The problems faced at PT. PP. London Sumatra Indonesia Tbk, Bagerpang Palm Oil Mill, is that there are still errors in the grouping of the liquid waste which have a bad impact and cause environmental damage and disrupt activities around the company. One way to process the data is to apply or use data mining techniques. Where data mining is the process of analyzing large data into information to determine the pattern of the conclusions of the data being analyzed. The application of the C.45 algorithm which later will explore existing data and will form a decision tree, where this decision tree will later help the company to know the grouping and processing of the liquid waste so as not to have a bad impact on the surrounding company
Improvement Recommendation Map Proposed (Future State Map) Housing Construction Process in Low-Cost Housing
Authors:   UniversitasPersadaIndonesiaYAI,Jakarta,Indonesia, . Nurlaelah
Published: April 2022

Based on the two (two) root causes of waste, it is suggested that improvements be made by implementing a more effective and efficient house construction procedure. The contractor will run the Pull System (Kanban System) for the projected development in question. Production Kanban, Withdrawl Kanban, and Signal Kanban are the three sorts of cards that can be used, and they are all kept in the contractor's office as Kanban Post. To deal with material supply difficulties, logistics operators might use Supermarket and FIFO (First In First Out) systems. All of these ideas are poured into a future state map (Future State Map) of the house-building process in Low Cost Housing. A Focus Group Discussion was used to validate the suggested future state map, which led to the conclusion that the proposed change could be implemented. However, the Pull System, Supermarket System, and First in First Out (FIFO) presented in the process of creating houses in Low-Cost Housing still need to be improved.
Os papéis e desafios das organizações da agricultura familiar no abastecimento do Programa Nacional de Alimentação Escolar (PNAE) em municípios de Minas Gerais
Authors:   , Moreira Isabela Renó Jorge
Published: April 2022

O objetivo desta pesquisa foi identificar e analisar os papéis e os desafios das cooperativas e associações no abastecimento do Programa Nacional de Alimentação Escolar (PNAE) em cinco municípios do estado de Minas Gerais: Belo Horizonte, Governador Valadares, Juiz de Fora, Montes Claros e Uberlândia, por meio do exercício da Lei n° 11.947/2009, que definiu que no mínimo 30% dos recursos do Fundo Nacional de Desenvolvimento da Educação (FNDE) destinados à alimentação escolar deve ser aplicados na aquisição de alimentos oriundos da agricultura familiar. De forma específica, buscou-se revelar a trajetória das cooperativas e associações da agricultura familiar e sua atuação no âmbito do PNAE, mapear outras organizações atuantes no programa nos municípios e compreender como a interação entre esses atores e o contexto institucional local condicionam a participação da agricultura familiar nesse mercado. Em termos metodológicos, para operacionalização da pesquisa qualitativa, realizou- se entrevistas semiestruturas com gestores públicos municipais e representantes das cooperativas e associações, atores-chave na implementação do PNAE nos cinco municípios, como também observação participante e análise de documentos de acesso público. A maioria parte das organizações foi constituída após 2009, com objetivo direto de acessar o PNAE e permanecem dependentes economicamente do Programa. Elas desempenham papéis distintos, atuando na organização da produção de seus cooperados, na mediação comercial e na representação política e institucional da agricultura familiar, mas isso varia de acordo com a maturidade e trajetória de cada organização. No entanto, percebe-se que as cooperativas e associações ainda são marginais nas redes de implementação do PNAE e enfrentam desafios de diferentes naturezas, principalmente organizacionais, institucionais e relacionais, que dificultam o acesso e a ampliação da participação da agricultura familiar no Programa. Conclui- se que o abastecimento do PNAE demanda arranjos institucionais que favoreçam a participação das cooperativas e associações e estimulem sua autonomia na construção das compras públicas de alimentos. Apesar dos desafios, as organizações apresentam grande potencial para dinamizar o acesso a esse mercado pela agricultura familiar, mas, precisam ser integradas à agenda pública e consideradas como agentes de desenvolvimento local. Palavras-chave: Cooperativismo. Associativismo. Agricultura Familiar. Mercado Institucional. Programa Nacional de Alimentação Escolar.
Wernicke’s Encephalopathy in the Setting of Severe Malnutrition and Alcohol Abuse
Authors:   Department of Internal Medicine, Mountain Vista Medical Center/Midwestern University, Mesa, AZ, USA, Parker DO Lyndie Wilkins , Saddouk MD DO Yamine ,   Department of Internal Medicine, Program Director, Mountain Vista Medial Center/Midwestern University, Mesa, AZ, USA
Published: April 2022

Wernicke’s encephalopathy is an acute, potentially fatal syndrome attributable to thiamine deficiency. Prompt identification and treatment is essential to prevent the development of Korsakoff syndrome, an irreversible memory disorder associated with both retrograde and anterograde amnesia. Here, we present a case of a 39-year-old woman admitted to the ICU with a diagnosis of alcohol withdrawal and severe malnutrition. On admission, the patient was noted to have horizontal nystagmus and underwent aggressive thiamine repletion resulting in resolution of her symptoms.
Een zeldzame oorzaak van meconium ileus
Authors: Van De Wielle R. , Clarysse A.
Published: April 2022

A rare cause of meconium ileus

A newborn was admitted to the neonatal intensive care unit due to a gastrointestinal obstruction and respiratory failure. Based on a diagnostic laparoscopy, the diagnosis of meconium ileus was made and 2 ileostomies were created. Genetic testing for cystic fibrosis was performed. Postoperatively, respiratory failure persisted with extubation failure on day 5. A few days later, a new attempt was successful. Because of repeated apnea and severe hypoventilation, BiPAP (bilevel positive airway pressure) was necessary. Genetic testing for cystic fibrosis turned out to be negative on day 13. The hypoventilation, the negative genetics for cystic fibrosis and a new gastrointestinal obstruction led to an alternative and more rare diagnosis: Haddad syndrome. This condition was first described by G. Haddad as the combination of congenital central hypoventilation syndrome (CCHS) and Hirschsprung’s disease. Both are the result of autonomic dysfunction and are due to a mutation in the PHOX2B gene, which plays a role in the embryological development of the autonomic nervous system from the neural crest. Different types of mutations have been described with implications for the clinic, comorbidities and prognosis.
Peran Manajemen Kepala Sekolah Terhadap Mutu Pendidikan Sekolah Dasar di Kota Langsa
Authors: Rismayani Rismayani , Muhaini Muhaini , Sabaruddin Sabaruddin
Published: April 2022

Kepala sekolah sebagai puncak kepemimpinan di tingkat sekolah diperlukan kemampuan untuk manajerial yang baik sehingga mewujudkan mutu pendidikan yang unggul. Namun tidak semua kepala sekolah memiliki kompetensi manajerial yang baik. Tujuan penelitian ini adalah untuk melihat bagaimana implementasi manajemen kepala sekolah dalam mewujudkan lembaga pendidikan yang bermutu berstandar nasional pendidikan. Metodologi dalam penelitian ini adalah melalui pendekatan deskriptif analisis kualitatif,  yang menjadi responden dalam penelitian ini adalah 3 sekolah pada Gugus I Kota Langsa, yang terdiri dari: 3 orang kepala sekolah, 3 orang Guru, 3 orang Staf Administrasi serta 3 orang tua siswa dari masing-masing Sekolah. Pengumpulan data melalui wawancara, observasi, dan dokumentasi. Analisis data menggunakan kaedah kualitatif. Penelitian ini menunjukkan bahwa manajemen yang diterapkan kepala sekolah adalah manajemen partisipasi, kritik, saran dan solusi.  Faktor pendukung dalam penerapan manajemen ini adalah melaksanakan peraturan, tatatertib dan disiplin sekolah, serta penggalak kesadaran guru untuk meningkatkan kompetensi pembelajaran sekolah. Implementasi manajemen kepala sekolah dalam mewujudkan lembaga pendidikan yang bermutu berstandar nasional pendidikan para kepala sekolah SD Gugus I Kota Langsa yaitu melalui  aktualisasi manajemen sekolah yaitu dengan meningkatkan peranan kepala sekolah sebagai manajer, diantaranya adalah penyusunan program manajemen peningkatan mutu, pengorganisasian dan penetapan peningkatan mutu, penggerakan program peningkatan mutu, pengawasan program sekolah.
The Moderating Role of Timespan since Parental Divorce on the Relationship between Self Compassion and Anxiety
Authors: Wibisono Narendra Bayutama , Napitupulu Saiful Sabar
Published: April 2022

This study aims to find out the relationship between self-compassion and anxiety on how young adults experience divorce from both parents. The total number of participants was 66 people and young adults aged 18-25 years. Compassion is measured using the Self-Compassion Scale-Short Form (SCS-SF), anxiety is measured using the State-Trait anxiety Inventory Trait Scale (STAI-T). The results showed that there was a significant negative relationship between self-compassion and anxiety in young adults who experienced divorce from both parents. Then it was found that anxiety was higher in participants who had taken an undergraduate or diploma education compared to participants who had just taken high school education and equivalent.