bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness of transcranial magnetic stimulation in the treatment of chronic neuropathic pain
Authors: vencato manuel
Published: December 2020

Il dolore cronico rappresenta un rilevante problema di natura sociale ed economica in ambito sanitario. Recenti studi epidemiologici internazionali hanno determinato un’incidenza che varia dal 10% al 50% della popolazione. Gli elevati costi che ne derivano sono legati sia alle spese sanitarie che alle conseguenze lavorative (ad es., prolungate assenze) (Breivik, Collett, Ventafridda, Cohen, e Gallacher, 2006). Non sono da meno le ripercussioni fisiche e psicologiche del dolore, che causano una significativa riduzione della qualità di vita del malato (Patel et al., 2012). Il dolore cronico è spesso associato a disabilità fisica causata o aggravata da una riduzione del movimento e spesso accompagnata da depressione reattiva e disturbi d’ansia (Asmundson e Katz, 2009; Tsang et al., 2008). Ne consegue che trovare una terapia efficace, mantenendo tuttavia un grado accettabile di invasività, sia un importante obbiettivo della medicina moderna (Jonas et al., 2018). Nel tentativo di venire incontro a queste necessità, un vasto numero eterogeneo di tecniche sono state sviluppate per il trattamento del dolore cronico: una di queste è la stimolazione magnetica transcranica (TMS).Nella prima sezione del presente elaborato verrà descritto il dolore cronico, con particolare attenzione al dolore cronico neuropatico (DCN), per il quale terapie farmacologiche e fisioterapiche risultano essere poco efficaci (Akyuz e Kenis, 2014; Hansson, Attal, Baron, e Cruccu, 2009). Verrà quindi presentata la TMS con una breve spiegazione dei principali parametri e protocolli di utilizzo. La scelta di questa tecnica è stata dettata dalla bassa invasività e dalla scarsa presenza di controindicazioni.Nella seconda sezione, il trattamento tramite TMS del DCN verrà discusso in profondità. In particolare, sarà valutata l’efficacia della stimolazione delle aree corticali maggiormente considerate negli studi e saranno esposti quei protocolli che più hanno determinato effetti analgesici. Sarà inoltre presentato l’uso preoperatorio della TMS come strumento predittivo degli effetti analgesici degli impianti epidurali.Nella terza sezione, verranno presi in considerazione i meccanismi neurali e neurobiologici che è probabile sottendano i risultati terapeutici della TMS. Verrà descritto come, oltre alle aree corticali stimolate, anche molte strutture cerebrali profonde subiscano indirettamente gli effetti della TMS. Infine, nella conclusione, verranno proposti dei miglioramenti volti ad aumentare la qualità degli studi e verranno presentate le ultime tecnologie allo scopo di migliorare l’efficacia dell’applicazione della TMS per il DCN e di aumentarne la comprensione dei relativi meccanismi.
THE MUSLIM / MALAY COMMUNITY IN SINGAPORE
Authors: Astafieva Ekaterina
Published: December 2020

Статья посвящена мусульманской / малайской общине в Сингапуре. Автор обращается к анализу исторических и социально- политических аспектов, оказавших влияние на ее современное развитие, рассматривает деятельность основных ее институтов и организаций, делает выводы о перспективах полноценной интеграции малайской общины в конструкт единой сингапурской нации.
PENGARUH LOCUS OF CONTROL, BUDAYA ORGANISASI, KOMITMEN ORGANISASI DAN STRUKTUR AUDIT TERHADAP KINERJA AUDITOR
Authors: Ilmatiara Dinda , Sosiady Mulia , Miftah Desrir
Published: December 2020

Public trust in auditors or audit firm as an independent party authorized to audit financial statements is very high. Auditors who can improve their performance are believed to be capable of becoming qualified auditors and capable of producing high quality products. This study aims to analyze the effect of locus of control, organizational culture, organizational commitment, and audit structure on auditor performance. The population in this study were all auditors at the level of partners, managers, seniors, and juniors as well as staff auditors at the Public Accounting Firm in Pekanbaru. The sampling technique used purposive sampling. The technique of collecting data using a questionnaire. This study was tested with multiple regression analysis using the SPSS 23 program. The results showed that locus of control, organizational culture, organizational commitment, and audit structure had an effect on auditor performance.
Formal Email Writing Convention: Differences Between Native and Non-native Students
Authors: Shahid Shama- E-
Published: December 2020

The use of emails in student-faculty communication is a regulated process. The regulations are formulated in order to ensure that the correspondences are in line with the institutional requirements and to maintain professionalism. There is limited information about such regulations amongst native students (NS) and non-native students (NNS) regarding formal email writing conventions. This study examines the formal email writing conventions of NNS under a regulated environment. A purposive non-probability sampling of 10 non-native students from a British university was collected. The findings indicate that language prowess, request letter acts, and use of formality have positive impacts on the formal email writing among NNS students. It can be concluded from the above findings that teachers of ESL should pay attention to how students formulate the structure and content of emails as they directly impact their writing capability.
Did Polish Bishops Support Andrzej Duda in the Presidential Campaign in 2020? Analysis of Institutional Messages of the Polish Episcopal Conference
Authors: Leśniczak Rafał
Published: December 2020

The aim of the article is to increase the cognitive value in the area of political communication of Polish bishops during the presidential campaign in Poland in 2020, in particular to answer the question whether the Polish Episcopal Conference supported President Andrzej Duda politically in his candidacy for re-election. The research applied the analysis and synthesis method supplemented with elements of hermeneutics. The Polish Episcopal Conference remained an entity not politically involved at the level of institutional communiqués and did not support any of the candidates applying for the office of President of the Republic of Poland in 2020. The issue for further political and media research remains that of complementary forms of communication of the ecclesial institution and the way of expressing one's own electoral preferences, for example through the Catholic media.
Deliberative Democracy: The Case of Slovenia
Authors: Haček Miro , Kukovič Simona
Published: December 2020

In Europe and across the world, many countries are turning to deliberative democracy to reform their constitutions, and in many others this question is high on the political agenda. Such transformation also shuffles quite radically the role of the citizenry regarding constitutional changes. Traditionally such changes are the sole responsibility of elected officials in collaboration with experts. With the deliberative turn, many more actors may be involved in the designing of constitutions, from citizens both individually and collectively in the forms of informal associations to various civil society organisations. The main aim of this paper is to analyse potential of deliberative democracy in Slovenian national setting, therefore authors are analysing a) framework of constitution making dynamics and b) most successful deliberative democratic tools and opportunities developed so far on both national and sub-national levels of the Slovenian government. As deliberative democracy is well known political phenomenon, we will start not by yet another theoretical pandemonium, but with less-known Slovenian contribution to the global development of deliberative model.
The Edges of a Pandemic: Pseudoscience, Alternative Medicine, and Belief in the Age of COVID
Authors: Boutros Alexandra
Published: December 2020

The circulation of misinformation, pseudoscience, and conspiracy theories related to the global pandemic caused by the COVID-19 virus are often subjected to a hegemonic categorization that renders those ignoring social distancing recommendations or seeking alternative cures “covidiots.” This text examines the public circulation of those fragments of discourse simultaneously relegated to the edges of the pandemic and made hypervisible through mediated repetition.
Kajian Karakterisasi Mikrokristalin Selulosa Berbasis Kulit Sukun (Artocarpus astilis) Melalui Proses Hidrolisa
Authors: Visca Rinette
Published: December 2020

Abstrak Selulosa merupakan salah satu polimer  biodegradabilitas dan merupakan komponen biomassa  terbanyak di alam, yang dapat digunakan untuk berbagai aplikasi industri. Penelitian ini bertujuan untuk memperoleh mikrokristalin selulosa dengan memanfaatkan limbah kulit sukun yang mengandung lignoselulosa. Proses yang dilakukan untuk memperoleh mikrokristalin selulosa berbasis kulit sukun sesuai persyaratan standar yang meliputi pembuatan serbuk kulit sukun, tahap isolasi α-selulosa, delignifikasi, bleaching  dan hidrolisa. Hasil isolasi dari kulit sukun berupa serbuk mikrokristalin selulosa dikarakterisasi. Adapun karakterisasi mikrokristalin selulosa yang dilakukan meliputi pengujian kadar air, uji organoleptik, penentuan pH, dan bilangan permanganat. Hasil  penelitian menunjukan  bahwa  kadar  air  dari  mikrokristalin selulosa sebesar 4.24%. Kadar air tersebut telah memenuh standar yaitu maksimum 5%. Mikrokristalin selulosa memiliki pH 6.8 yang sesuai dalam rentang pH 5.0-7.5. Hasil uji bilangan permanganat diperoleh kadar lignin mikrokristalin selulosa yaitu 5.13%. Kadar lignin telah memenuhi SNI 0494:2008  yaitu maksimum 6%.
Assessment of Oral Function and Food Product Preference in Patients with Head and Neck Cancers
Authors: B. Epstein Joel , B. Epstein Joel , Villines Dana , L. Epstein Geena , Rawal Shristi , Dalton Jennifer , Touger-Decker Riva
Published: December 2020

Introduction: Taste and olfactory changes begin within days of initiating chemotherapy and radiation
therapy for head and neck cancers (HNC) and may persist 12 months or longer post-treatment, affecting 50
to 75% of adults with HNC. In this study, we assess taste function and diet in addition to food product
evaluation among patients with HNC.
Methods: Ten patients with HNC were evaluated during (n=6) and following radiation therapy with/without
chemotherapy (n=8). Oral examination measures included oral hygiene and whole saliva. Patients also
completed the Scale of Subjective Total Taste Acuity (STTA), National Cancer Institute Diet History
Questionnaire II (DHQII) and Vanderbilt Head and Neck Symptom survey (VHNSS) and evaluated Hormel
Vital CuisineTM Products.
Results: Taste changes were more pronounced in the acute treatment phase (60% moderate to severe loss)
than in the post-treatment phase (50% no taste change and no severe taste loss). Half of the patients reported
poor appetite during the study, although patients reported they were able to complete 75% of the Hormel
Vital Cuisine meal during one sitting. More than 70% of these meals were rated favourably with no aftertaste or burning sensation.
Conclusion: Considerations in meal preparation and food products during and following HNC therapy
should recognize oral and taste changes from the acute treatment phase to survivorship. Differences are seen
in oropharyngeal function and pain, saliva function and taste/flavor recognition.
Implications: This exploratory study provides insight for diet and food product development for patients
with HNC during and following treatment. Further research with a larger sample is needed to develop
guidelines for product development.
Effectiveness of the Nipples-Saving Mastectomy (NSM): Review on the Results, Oncologic Safety and Surgical Complications
Authors: Parmeggiani Domenico , Parmeggiani Domenico , C Mallitti , Volpe M Lanza , S Parisi , S Rinaldi , G Nesta , G Gualtieri , F Fiorentino , GM Terracciano , V Bottino , R Ruggiero , L Docimo
Published: December 2020

Background: The nipples-saving mastectomy (NSM), most recent technique, allows the whole mammary
gland removal preserving the nipple-areola compound (NAC), obtaining oncologic safe results. When
indicated, NSM is validated by the great aesthetic results obtained.
Objectives: The objective of this review is the evaluation of the effectiveness and oncologic safety of the
nipple-saving mastectomy, marking the most frequent complications. Moreover, the possibility to use the
NSM procedure as prophylactic mastectomy in patients at high risk has been evaluated.
Research Methods: A bibliographic research about clinical studies and previous reviews related to nipplessaving mastectomy has been conducted. No limitation about language was performed.
Results: The study included 12 articles, for a total of 2859 patients and 3849 NSM. Patients candidate to
NSM, either as a prophylactic or curative treatment of mammary carcinoma, must undergo a careful
selection screening. Most frequently occurring surgery-related complications were necrosis and infections;
though not altering the cosmetic results, that have been positively evaluated in almost all patients.
Conclusion: Preservation of the areola-nipple compound seems to be oncologically safe and does not
increase local recurrences, compared to the previous techniques. Moreover, it is associated with better
aesthetic results and patients’ higher satisfaction.
Student's Perception Towards Incorporation of Hello English in Vocabulary Learning
Authors: Nurtriyanto Haris
Published: December 2020

Purpose - The purpose of the article to know how does the learning process while incorporating Hello English application in vocabulary learning and to know how are student's perception towards incorporating Hello English in English vocabulary learning.

Design/methodology/approach - Research design is used by the writer is qualitative research with narrative design. The research takes from 8th-grade students of SMPN 2 Serang Baru, Bekasi. In the data collection technique, the researcher uses an interview as a way of collecting data. In data analysis, there is four-step, that is data collection, data reduction, data presentation, verification and conclusion.

Findings - In the result, the writer found that students’ perception towards incorporating of Hello English in vocabulary learning has positive perception for students as seen from their responses that the Hello English application is a very good application and use in English learning, especially in learning English vocabulary.

Originality/value - Teachers must be creative to create or collaborate with application designs to make language learning applications. Because the problems and learning needs in every school are known only to the teachers who teach.

Paper type – Research paper
Relationship between the tone of the autonomic nervous system in cows and copper content in blood depending on the seasons
Authors:   National University of Life and Environmental Sciences of Ukraine, Zhurenko O. , Karpovskyi V. ,   National University of Life and Environmental Sciences of Ukraine, Zhurenko V. ,   National University of Life and Environmental Sciences of Ukraine
Published: December 2020

The tone of the autonomic nervous system is considered on the one hand as one of the manifestations of homeostasis, and on the other hand, as one of the mechanisms of its regulation. The predominance of the tonic effect of the parasympathetic and sympathetic departments of the autonomic nervous system is defined as vagotonia and sympathicotonia. The tone of the autonomic nervous system in cows was determined using a trigeminal vagal test. According to the results, the animal was classified as normotonic, sympathicotonic or vagotonic. The tone of the autonomic nervous system in cows in summer inversely correlated with copper content in whole blood (r=-0.62; p<0.05) and blood cells (r=-0.58; p<0.05). In winter, the correlation of the tone of the autonomic nervous system in cows with its content in whole blood, serum and blood cells did not reach significant values (r=-0.21–0.36). Increased tone of the parasympathetic department of the autonomic nervous system, regardless of the season, had almost no effect on copper content in serum, whole blood and its cells (ղ²x=0.01–0.23). At the same time, sympathicotonia in summer has a significant impact only on the copper content in blood cells – ղ²x=0.58 (p<0.05), while in winter this effect increased significantly (ղ²x=0.91; p<0.001). The multifactor analysis of variance revealed the dependence of copper content on the tone of the autonomic nervous system and the season. However, the vegetative status of cows had a significant impact on its content only in blood cells (F=8.59>FU=4.41; p<0.01), and the season limited copper content only in whole blood (F=12.12>FU=3.55; p<0.01).
Study of Serum CEA and Ca 19.9 in Esophageal Squamous Carcinoma and ROC Curve Analysis
Authors: Das Sawmik , Kakoti Lopa mudra , Ahmed Shiraj , Sarma Anupam , Ch kataki Amal
Published: December 2020

Background: There are very few studies on the comparative diagnostic value of CEA and Ca19.9 in esophageal squamous cell carcinoma (ESCC).Aims and objectives: The aim of the present study was to access the clinical relevance of CEA and CA19.9 in ESCC and to determine whether combined use of these marker could improve diagnostic sensitivity and specificity. Material and Method: Venous blood Samples were collected from total 68 individuals, divided into two categories, group 1 includes 18 healthy individuals and group 2 includes 50 patients with already diagnosed cases of ESCC prior to any treatment. Tests were performed to estimate the value of CEA and Ca19.9. Different statistical analysis has been performed to derive a clinically meaningful value.Results: The mean serum CEA and CA 19.9 levels and also the ratio of CEA/Ca19.9 were higher in patients with ESCC than healthy subjects. In ESCC, the optimal combination of sensitivity and specificity for CEA were determined as 48% and 94% and for CA19.9 were determined as 76% and 72% respectively, whereas combined analysis of CEA/CA19.9 were lower than individual value in patients. Over all accuracy rate was better with CA19. The diagnostic power of CEA and CA19-9 as a screening test for ESCC were assessed by ROC curve analysis. The cut-off value for CEA and CA19-9 in ESCC were found to be 2.9 2 ng/ml and 7.4 ng/ml and were found to be above the cut-off value in 25 (50%) and 42 (84%) of the patients with ESCC respectively.Conclusion: The results of our study indicated that serum CA19.9 has a higher positivity than serum CEA in esophageal cancer. The combined use of CA19-9 and CEA (ratio) could not increase the diagnostic sensitivity in esophageal cancers in our study.
APLIKASI REGRESI GANDA MODEL COBB-DOUGLAS TERHADAP PRODUKSI TAMBAK BANDENG DI KECAMATAN WONOMULYO
Authors: Abdullah Muhammad Arafat , Samil St. Haerawati
Published: December 2020

Secara umum tujuan penelitian ini adalah untuk mengestimasi tingkat produksi tambak bandeng dan menganalisis penggunaan regresi ganda model Cobb-Douglas tentang hubungan antara faktor-faktor produksi dengan tingkat produksi. Faktor-faktor produksi yang diteliti meliputi, jumlah nener (X1), jumlah pupuk urea (X3), jumlah pupuk SP36 (X2), dan pengalaman bertani (X4). Jumlah responden dalam penelitian ini 120 orang. Dalam penelitian ini, juga digunakan data sekunder yang merupakan data-data penunjang yang diperoleh dari Dinas Kelautan dan Perikanan Kabupaten Polewali Mandar. Regresi ganda model Cobb-Douglas digunakan sebagai alat analisis data dalam penelitian ini. Dengan statistik uji-t, dapat disimpulkan bahwa secara statistik peubah masukan (X2) dan (X3) tidak mempunyai pengaruh yang signifikan sedangkan peubah masukan (X1) dan (X4) mempunyai pengaruh yang signifikan terhadap produksi tambak bandeng di Kec. Wonomulyo pada alpha 5%. Dari hasil analisis, jumlah koefesien keelastisan dari keempat peubah masukan yaitu nilai ? = 1,203 atau koefisien keelastisan lebih besar dari 1, maka kegiatan produksi sudah berada pada zona I. Oleh karena itu, penambahan faktor produksi secara teknis masih dapat ditingkatkan, sebab penambahan masukan masih memberikan luaran yang besar.Kata kunci: regresi ganda, Cobb-Douglas, Uji-t
Konstruksi Pseudo Berdasarkan Kecenderungan Pengetahuan Prosedural
Authors: Herna
Published: December 2020

Penelitian kualitatif ini dilakukan pada siswa kelas VIII. Tujuannya adalah mengkaji proses konstruksi pseudo benar dan salah berdasarkan kecenderungan pengetahuan prosedural, dan menetapkan karakteristiknya.Peneliti menemukan bahwa Konstruksi pseudo benar ketika siswa menyelesaikan operasi penjumlahan pecahan bentuk aljabar terjadi ketika siswa memberikan jawaban yang benar dengan prosedur penyelesaian yang benar, tetapi siswa tidak mampu memberikan justifikasi terhadap prosedur yang digunakan.Konstruksi pseudo salah terjadi dalam dua kondisi.Pertama, kondisi ketika siswa memberikan jawaban yang salah dengan prosedur penyelesaian yang salah, karena siswa terdorong untuk menjawab dengan cepat.Kedua, kondisi ketika siswa memberikan jawaban yang salah karena careless error dengan prosedur penyelesaian yang benar, dan siswa mampu memberikan justifikasi terhadap prosedur yang digunakan.
Karekterisasi, Kinetika, dan Isoterm Adsorpsi Limbah Ampas Kelapa sebagai Adsorben Ion Cu(II)
Authors: Agusriyadin Agusriyadin
Published: December 2020

Penelitian ini bertujuan untuk menguji kemampuan AK dan AKPM dalam mengadsorpsi ion Cu (II), pengaruh parameter adsorpsi dan mekanisme adsorpsi. AK dan AKP Madsorben dibuat dari residu ampas kelapa. Adsorben dikarakterisasi dengan FTIR, SEM dan EDS. Pengaruh parameter adsorpsi seperti pH awal, dosis adsorben, waktu kontak dan konsentrasi ion Cu (II) awal diperiksa untuk menentukan kondisi optimum serapan tembaga (II). Ion Cu (II) yang teradsorpsi diukur berdasarkan pada konsentrasi Ion Cu (II) sebelum dan sesudah adsorpsi menggunakan metode AAS. Hasil karakterisasi menunjukkan bahwa struktur pori dan gugus fungsi tersedia pada permukaan adsorben. Menurut percobaan efek pH, kapasitas adsorpsi maksimum dicapai pada pH 7. Waktu kontak optimal dan konsentrasi tembaga awal (II) ditemukan masing-masing pada 120 menit dan 100 mg L-1. Data eksperimental sesuai dengan model kinetik orde dua orde dua, dan Langmuir isoterm adsorpsi yang diperoleh paling sesuai dengan data adsorpsi. Kapasitas adsorpsi maksimum adsorben ditemukan menjadi 4,73 dan 6,46 mg g-1 pada kondisi optimal.
The results of characterization showed that the pore structure and the functional groups were available on adsorbent surface. According to the pH effect experiments, the maximum adsorption capacity was achieved at pH 7. Optimum contact time and initial copper(II) concentration were found at 120 min and 100 mg L-1, respectively. The experimental data were comply with the pseudo-second-order kinetic model, and Langmuir adsorption isotherm obtained best fitted the adsorption data. The maximum adsorption capacity of the adsorbents was found to be 4.73 and 6.46 mg g-1 at optimum conditions.
Histological examination of the chaetognathan morphological structure in the region of a supposed trunk-tail septum
Authors: Kassatkina A.P. , Stolyarova M.V.
Published: December 2020

A histological examination was conducted based on sections done in series in transverse and longitudinal directions of Aidanosagitta macilenta (Sagittidae, Chaetognatha) in a region which includes the anterior parts of the testes and the posterior part of the ovaries. We found that, in mature individuals (the 4th stage of maturation), the anterior parts of the testes are located in front of the posterior part of the ovaries. The anterior parts of the testes have a ventral position adjoining the ventral muscular bands. The ovaries are located more dorsally than the testes at the level of lateral fi elds. A transverse trunk-tail septum between testes and ovaries was not revealed. These data support an idea that a structure which was earlier treated as a tail-trunk septum is actually the anterior edges of the testes. Both longitudinal coelomic cavities continue into the tail region without any transverse septa. The paired tail cavities as can be seen from their composition and functions represent the testes consisting of a peripheral compact portion with undifferentiated germ cells and a space where the maturation of cells occurs. The tail is distinguished anatomically as a post-anal portion of the body but it is not a true segment as it is not separated from a trunk part of the body by the trunk-tail septum. The body of Chaetognatha consists of two true parts (segments). A mesenterial septum divides the body longitudinally-symmetrically from a trunk-head septum down only to the caudal end of the gut. In the tail region there is a medial septum formed by the medial walls of testes. Gonads in both females and males do not have any duct connecting them with a gut cavity. The ovaries and the testes are covered by a coelomic lining and a duct between the ovaries and the testes is absent.
Intersectional Pandemics in Bangladesh
Authors: Siddiqa Nasrin
Published: December 2020

Girls and women are the first victims of any calamity, pandemic, or disaster in developing countries like Bangladesh. As it is, they are very often denied health care, are forced to endure child marriage and early motherhood, and are frequently subjected to violence. Given this unprecedented COVID-19 pandemic they are now suffering immensely. COVID-19 threatens girls’ rights in countries around the world and will have far-reaching impacts on their health and wellbeing, education, and protection. Self-isolation has increased the rates of gender-based violence. Early marriage and pregnancy are among the drastic effects of school closures and many parents have married off their underage daughters or sold them off to rich families as domestic workers to reduce their economic burden.
Outcomes of stereotactic radiosurgery for hemorrhagic arteriovenous malformations with or without prior resection or embolization
Authors: Kawashima Mariko , Hasegawa Hirotaka , Shin Masahiro , Shinya Yuki , Ishikawa Osamu , Koizumi Satoshi , Katano Atsuto , Nakatomi Hirofumi , Saito Nobuhito
Published: December 2020

OBJECTIVE

The major concern about ruptured arteriovenous malformations (rAVMs) is recurrent hemorrhage, which tends to preclude stereotactic radiosurgery (SRS) as a therapeutic modality for these brain malformations. In this study, the authors aimed to clarify the role of SRS for rAVM as a stand-alone modality and an adjunct for a remnant nidus after surgery or embolization.

METHODS

Data on 410 consecutive patients with rAVMs treated with SRS were analyzed. The patients were classified into groups, according to prior interventions: SRS-alone, surgery and SRS (Surg-SRS), and embolization and SRS (Embol-SRS) groups. The outcomes of the SRS-alone group were analyzed in comparison with those of the other two groups.

RESULTS

The obliteration rate was higher in the Surg-SRS group than in the SRS-alone group (5-year cumulative rate 97% vs 79%, p < 0.001), whereas no significant difference was observed between the Embol-SRS and SRS-alone groups. Prior resection (HR 1.78, 95% CI 1.30–2.43, p < 0.001), a maximum AVM diameter ≤ 20 mm (HR 1.81, 95% CI 1.43–2.30, p < 0.001), and a prescription dose ≥ 20 Gy (HR 2.04, 95% CI 1.28–3.27, p = 0.003) were associated with a better obliteration rate, as demonstrated by multivariate Cox proportional hazards analyses. In the SRS-alone group, the annual post-SRS hemorrhage rates were 1.5% within 5 years and 0.2% thereafter and the 10-year significant neurological event–free rate was 95%; no intergroup difference was observed in either outcome. The exclusive performance of SRS (SRS alone) was not a risk for post-SRS hemorrhage or for significant neurological events based on multivariate analyses. These results were also confirmed with propensity score–matched analyses.

CONCLUSIONS

The treatment strategy for rAVMs should be tailored with due consideration of multiple factors associated with the patients. Stand-alone SRS is effective for hemorrhagic AVMs, and the risk of post-SRS hemorrhage was low. SRS can also be favorably used for residual AVMs after initial interventions, especially after failed resection.
A needs assessment of pediatric epilepsy surgery in Haiti
Authors: Crevier-Sorbo Gabriel , Brunette-Clément Tristan , Medawar Edgard , Mathieu Francois , Morgan Benjamin R. , Hachem Laureen D. , Dewan Michael C. , Fallah Aria , Weil Alexander G. , Ibrahim George M.
Published: December 2020

OBJECTIVE

Epilepsy disproportionately affects low- and/or middle-income countries (LMICs). Surgical treatments for epilepsy are potentially curative and cost-effective and may improve quality of life and reduce social stigmas. In the current study, the authors estimate the potential need for a surgical epilepsy program in Haiti by applying contemporary epilepsy surgery referral guidelines to a population of children assessed at the Clinique d’Épilepsie de Port-au-Prince (CLIDEP).

METHODS

The authors reviewed 812 pediatric patient records from the CLIDEP, the only pediatric epilepsy referral center in Haiti. Clinical covariates and seizure outcomes were extracted from digitized charts. Electroencephalography (EEG) and neuroimaging reports were further analyzed to determine the prevalence of focal epilepsy or surgically amenable syndromes and to assess the lesional causes of epilepsy in Haiti. Lastly, the toolsforepilepsy instrument was applied to determine the proportion of patients who met the criteria for epilepsy surgery referral.

RESULTS

Two-thirds of the patients at CLIDEP (543/812) were determined to have epilepsy based on clinical and diagnostic evaluations. Most of them (82%, 444/543) had been evaluated with interictal EEG, 88% of whom (391/444) had abnormal findings. The most common finding was a unilateral focal abnormality (32%, 125/391). Neuroimaging, a prerequisite for applying the epilepsy surgery referral criteria, had been performed in only 58 patients in the entire CLIDEP cohort, 39 of whom were eventually diagnosed with epilepsy. Two-thirds (26/39) of those patients had abnormal findings on neuroimaging. Most patients (55%, 18/33) assessed with the toolsforepilepsy application met the criteria for epilepsy surgery referral.

CONCLUSIONS

The authors’ findings suggest that many children with epilepsy in Haiti could benefit from being evaluated at a center with the capacity to perform basic brain imaging and neurosurgical treatments.
Drenaje urbano sostenible: una alternativa para Xalapa, Veracruz, México
Authors: Parada-Molina Paulo César , Suárez Guerrero Ana Isabel , Jiménez Huerta Joaquín , Cervantes Pérez Juan , Silva Blanco Lily Ariadna
Published: December 2020

Las áreas urbanas generan más escorrentía de aguas pluviales que las áreas naturales, debido a que la impermeabilización de las superficies reduce la infiltración del agua. Ante esto, la tendencia de gestión sostenible de recursos naturales ha generado nuevos enfoques de diseño y planeación urbana que incluyen el uso de sistemas de drenaje innovadores. Por ello, el presente estudio tiene como objetivo determinar la viabilidad para la creación e implementación de los pozos de infiltración como sistema de drenaje pluvial sostenible, a nivel vivienda, en zonas urbanas del municipio de Xalapa, Veracruz, México. Los resultados de viabilidad indican que el interés de las personas en adoptar e invertir en infraestructura para el drenaje pluvial (66.67 %), su bajo costo (75 %), así como las características físicas de las zonas (83 % en zonas estables), juegan un papel muy importante en la aplicación de este tipo de proyectos, sin dejar de lado los beneficios ambientales (91.67 %). Las características técnicas (tipo de suelo, geotecnia, capacidad de infiltración) son prioritarias para el uso de drenaje pluvial alternativo en viviendas de Xalapa. Con ello, la construcción y uso de sistemas de drenaje pluvial alternativo es una medida aplicable a las viviendas del área urbana de Xalapa, por lo que pueden ser un complemento del sistema de drenaje tradicional.
Способ обработки результатов магнитной дефектоскопии для достоверного обнаружения опасных дефектов сплошности в реальном времени
Authors: Печенков А.Н.
Published: December 2020

The inverse problems of magnetostatics for defects of a continuum can be formulated in various ways. It is possible to set a task of definition of defects with high precision and permission,or it is possible to limit the task to detection of several types of defects («dangerous» defects) with good probability. At the same time «small» defects will be passed by the computer program. The problem of minimization of functional for both experimental and computational magnetic field differences is the main problem for the solution of any inverse problem, both in on – line (real time), and in off - line modes. Computational method of calculations in real time of the simplified inverse problem, without accumulation of experimental databases is considered.
Análisis bibliométrico sobre la producción científica del trabajo social digital con Scopus y bibliometrix
Authors: Tibana Rios Diana Carolina , Cruz Garcia Darwin Alexis
Published: December 2020

Realizar un acercamiento sobre la producción bibliográfica del trabajosocial digital o e-social work a nivel mundial, permitió como se verá en esteartículo, construir un marco de referencia sobre la cantidad y evolución de loscontenidos globales que se han realizado del tema desde un nivel científico. Esteestudio bibliométrico retrospectivo y descriptivo de tipo documental se realizó apartir de la revisión de los datos de documentos originales depositados en la basede datos Scopus y exportados a la herramienta bibliometrix versión 2.2. Comohallazgos se encuentran la evolución histórica por años, prevalencia de autores yafiliación institucional de los mismos, concentración por ciudad y las palabras claves. Todo lo anterior basado en los recursos de la matemática y estadística como ejes centrales de la bibliometría.
Study of Aluminum Influence on the Adhesion of Stainless Steel in Flame Spraying
Authors: Stepanov Sergey , Larionova Tatyana , Stepanov Sergey
Published: December 2020

This paper is dedicated to a study of aluminum influence on the improvement of surface adhesion strength. The main purpose of this work is to investigate the strength of adhesion to the substrate by mixing flame spray powder with aluminum, which not only possesses high corrosion resistance and conductivity, but also provides additional strength, as it combines and reacts with other components of the powder.

Research results of sandblasting dependence on surface roughness parameter Ra are demonstrated.

The paper describes authors’ original device for a measuring instrument “Profilometer”, which was also used for measuring roughness parameter in order to obtain comparative results.

Authors present results of adhesion measurements given obtained values of surface roughness by mixing nominal chemical composition of PR-30X13 powder, used as a testing material, with aluminum, which reacts with oxides on the surface of steel substrates, imparts strength to the bonding between the coating and the substrate, protects the base metal due to a combination of chemical components of the powder and creates a layer of dense surface coating. These dependencies are analyzed and parameters, exerting the greatest influence on their values, are identified.

Taking into account the results obtained through numerical modeling, authors propose a mathematical model of a dependency between adhesion strength and certain values of surface roughness for different chemical compositions of flame spray powder. These studies will help in the development of certain material types for spraying and hardening of steel parts and products in order to improve their durability.
Assessment of the Influence of Water Saturation and Capillary Pressure Gradients on Size Formation of Two-Phase Filtration Zone in Compressed Low-Permeable Reservoir
Authors: Korotenko Valentin , Grachev Sergei , Kushakova Nelly , Mulyavin Semyon
Published: December 2020

The paper examines the influence of capillary pressure and water saturation ratio gradients on the size of the two-phase filtration zone during flooding of a low-permeable reservoir. Variations of water saturation ratio s in the zone of two-phase filtration are associated with the pressure variation of water injected into the reservoir; moreover the law of variation of water saturation ratio s(r, t) must correspond to the variation of injection pressure, i.e. it must be described by the same functions, as the functions of water pressure variation, but be subject to its own boundary conditions. The paper considers five options of s(r, t) dependency on time and coordinates.

In order to estimate the influence of formation and fluid compressibility, the authors examine Rapoport – Lis model for incompressible media with a violated lower limit for Darcy’s law application and a time-dependent radius of oil displacement by water. When the lower limit for Darcy’s law application is violated, the radius of the displacement front depends on the value of capillary pressure gradient and the assignment of s function.    

It is shown that displacement front radii contain coefficients that carry information about physical properties of the reservoir and the displacement fluid. A comparison of two-phase filtration radii for incompressible and compressible reservoirs is performed.

The influence of capillary pressure gradient and functional dependencies of water saturation ratio on oil displacement in low-permeable reservoirs is assessed.

It is identified that capillary pressure gradient has practically no effect on the size of the two-phase filtration zone and the share of water in the arbitrary point of the formation, whereas the variation of water saturation ratio and reservoir compressibility exert a significant influence thereupon.
The Distribution of the ABO and Rhesus Blood Groups among the Albanian Population in the Southwest Part of Kosovo (District of Prizren)
Authors: Temaj G.
Published: December 2020

ABSTRACT The data present distribution of the ABO and Rh (D) blood groups between inhabitants of southwest Kosovo (District of Prizren). It is shown that frequency of allele O is higher followed by frequency of allele A and B. the frequency of Rh- negative varies from 8 to 21 percent. The present study shows to be similar with results reported in West European Countries.
Presentación
Authors: Liliana Isabel Díaz Cabrera
Published: December 2020

Con la cuarta edición digital de la Revista Biumar, se comparte con la comunidad universitaria y público interesado el resultado de un proceso disciplinado, creativo, organizado y comprometido de los diferentes autores, que a través de sus escritos plasman en cada texto su experiencia, saber, conocimiento e impregnan su propio sello, de tal manera que permite a sus lectores interesarse y sumergirse en el maravilloso mundo de la lectura, la escritura y la reflexión.
Eficacia y eficiencia en los procesos de reclutamiento y selección de personal
Authors: Ángela Daniela Bolaños-Cerón
Published: December 2020

En la medida en que son desarrollados los procesos de reclutamiento y selección de personal, se presenta la tendencia a su complicación, como consecuencia de la preocupación por garantizar un proceso eficiente y eficaz, además de buscar el cumplimiento científico con la mayor objetividad posible. El propósito de este artículo es analizar, desde una perspectiva diferente, la realidad de la empresa en cuanto al proceso y su efectividad, principalmente en momentos críticos que surgen desde el crecimiento organizacional. Para esto, el proceso de práctica formativa llevada a cabo en una empresa micro financiera permitió constatar el ejercicio, encontrando que las condiciones internas y externas influyen en la efectividad del proceso de selección que, a su vez, generan consecuencias para el mismo.
Sistematización de la experiencia del equipo interdisciplinario de la Comisaría de Familia del municipio de Bojayá – Chocó, en la aplicación del proceso administrativo de restablecimiento de derechos de una niña de tres años de edad
Authors: Francis Rentería-Lemos  , Jeremías Moreno-Álvarez
Published: December 2020

La investigación se desarrolló con el fin de conocer la intervención, acompañamiento y demás actuaciones realizadas por el equipo interdisciplinario de la Comisaría de Familia Municipal de Bojayá en la ejecución y/o aplicación de un proceso administrativo de restablecimiento de derechos, basado en la Ley 1098 de 2006, Código de la Infancia y la Adolescencia, teniendo en cuenta interrogantes como ¿Qué es un proceso administrativo de restablecimiento de derechos?, ¿Cuál es el procedimiento a seguir?, ¿Que deben contener mínimamente los diferentes actos administrativos que se puede dictar dentro del proceso?, ¿Qué tipos de medidas proceden y cuáles se puede ordenar?, los términos para cada actuación o medida, entre otros elementos propios del proceso administrativo de familia en favor de una niña en situación de abandono, desnutrición y riesgo de fallecimiento.

La experiencia se realizó a través de un estudio de caso único que abordó la vulneración integral de los derechos de una niña de tres años en el municipio de Bojayá. Como herramientas de recolección de información adecuadas se utilizó la revisión documental y la entrevista, para captar de primera mano lo pertinente al caso, permitiéndoles a los investigadores, realizar un estudio minucioso de los documentos que hacían parte del acervo procesal de la Historia de Atención aperturada para el restablecimiento de los derechos de la niña y el diseño y aplicación de entrevistas a la familia extensa de la niña que se encontraba en situación de abandono.

La metodología utilizada se fundó en el paradigma metodológico cualitativo, siguiendo un enfoque interpretativo y su tipo fue la sistematización de experiencias. Los resultados permitieron dar cuenta de que los miembros de la Comisaría de Familia actuaron de manera oportuna, con apego a lo establecido en el ordenamiento legal colombiano y siempre buscando el bienestar y la satisfacción de los derechos y libertades de la niña.
Inclusión e interculturalidad en la Universidad Mariana
Authors: Jessica Alejandra Jacanamijoy-Araujo
Published: December 2020

La inclusión, como tema contemporáneo, se ha reconocido importante en la mayoría de los entornos de la vida humana para garantizar el derecho a la igualdad y la justicia de todos los habitantes del mundo. En este orden, la inclusión también ha sido tratada en el ámbito educativo, lugar de formación académica donde es preciso llevarla a cabo para el acceso, permanencia y graduación. La implementación de la política de educación superior inclusiva de la Universidad Mariana da respuesta a cumplir el derecho constitucional del respeto a la diversidad, siendo así, una alternativa a una educación intercultural.
El programa de Educación Superior Inclusiva, un espacio ideal para desarrollar la práctica formativa de Trabajo Social
Authors: Mayra Elizabeth Anaguano-Romero
Published: December 2020

El presente documento tiene como objetivo, narrar la experiencia de ejercer la práctica formativa de Trabajo social en el programa de Educación Superior Inclusiva, pues se considera de interés las labores realizadas desde el rol que desempeña el Trabajador Social, además de dar una visualización de los distintos campos de intervención de esta profesión y cómo este campo del Educación Superior Inclusiva es el espacio ideal para aplicar los conocimientos adquiridos en la academia.
Reflexionando sobre las prácticas
Authors: María Camila Guerrero-Fuel  , María Elena Jiménez-Obando
Published: December 2020

A partir de la situación de pandemia en el mundo, se ha tomado rumbos diferentes de métodos de estudio, asimilando hábitos de estudio a los cuales no estábamos acostumbrados; las clases presenciales eran el método de estudio para la enseñanza de los estudiantes universitarios. Para los estudiantes en salud, las prácticas en las unidades hospitalarias como hospitalización y urgencias ayudaban a tener mayor claridad para el correcto desarrollo de diferentes procedimientos en la administración de medicamentos. Estando en un zona de confort, las plataformas virtuales nos han ayudado a no perder los métodos de aprendizaje, considerando que todos hemos cambiado nuestros métodos de aprendizaje; la tecnología nos ha permitido no perder estas actividades, teniendo muy claro que no es lo mismo, pero se tiene un aprendizaje que nos ayuda a realizar de manera correcta la resolución de casos clínicos, que es lo más parecido a una práctica, ya que se toma todos los parámetros que nos ayudan a conocer todo sobre el paciente; esto nos apoyará para desarrollar correctamente las actividades. Tanto los docentes como los estudiantes estamos comprometidos con estos métodos de aprendizaje y enseñanza de nuestra formación profesional.
Investigation of random waypoint and steady state random waypoint mobility models in NS-3 using AODV
Authors: Singh Alok , Sharma Saurabh , Srivastava Rajneesh K.
Published: December 2020

NS-3 has been one of the popular network simulator software for many years especially in research related to Mobile Adhoc Networks (MANETs). In NS-3, there is provision of several mobility models including Random Waypoint (RWP) mobility model and Steady State Random Waypoint (SSRWP) mobility model. RWP mobility model suffers from the transition phase related imperfection. SSRWP mobility model overcomes this limitation of RWP mobility by allowing the steady state initialization states of nodes in terms of position, speed and pause time of mobile nodes right from the beginning of the simulation. As SSRWP mobility model avoids any requirement of warm-up (cut-off) phase of RWP mobility model, it saves a significant amount of time of warm-up (cut-off) phase as well as establishes a high level of confidence in results obtained due to absence of any subjective guess. In the present work, RWP and SSRWP mobility models have been investigated using AODV routing protocol and it has been found that a way to mitigate the misleading effect of the transition phase of RWP mobility model is to have a sufficiently large simulation time which results, to a good extent, in convergence of performance of RWP mobility model toward that of SSRWP mobility model.
Factors impacting community’s prioritization towards the benefits of Sustainable Urban Drainage Systems: A case study of Nhieu Loc – Thi Nghe sub-basin, Ho Chi Minh City
Authors: Lan Nguyen Hoang My , Loc Ho Huu , Van Phan Dinh Bich , Phu Vo Le , Trung Le Van
Published: December 2020

Sustainable Urban Drainage System (SUDS) includes various drainage techniques designed to reduce the run-off flow, improve the water quality, and provide amenity or landscape features. However, selecting the appropriate SUDS technique depends on not only the technical characteristics but also the community's perception and preference. Therefore, this study aims to determine the impact factors on the probability of households' prioritization towards SUDS benefits in the context of Nhieu Loc - Thi Nghe sub-basin, including the benefits of flood reduction, environmental enhancement, and landscape improvement. Data processing methods used in this study consist of statistical tests and ordinal regression using SPSS software. The regression results show that the overall accurate prediction rate for the 3 priority levels of SUDS benefits ranges from 50% to 70%. Factors that statistically significantly influence the priority include household income, knowledge of SUDS, frequency of flooding, depth of flooding, the distance to the nearest park, the distance to the nearest water body, and the distance to the nearest flooded location. In particular, the proximity to the nearest park affects the priority choice for all SUDS benefits with the principle that households near the park will probably choose higher priority to SUDS benefits than those living further.