bluuebunny/crossref_metadata_2025 huggingface dataset:
BENEFITS OF EARLY POST-ERCP LAPAROSCOPIC CHOLECYSTECTOMY: A SINGLE CENTRE PROSPECTIVE STUDY
Authors: Farhan javed  , Saira Saleem  , Ayesha Rehman  , Faiza Wattoo  , Nadia Bano  , Nazim Hayat
Published: August 2021

ABSTRACT:

BACKGROUND & OBJECTIVE: Laparoscopic cholecystectomy (LC) following Endoscopic retrograde cholangiopancreatography (ERCP) is associated with an increased risk of complications. ERCP is associated with increased incidence of complications during LC. Surgery may be performed in same anesthesia with ERCP or up to 6 weeks later. We aimed to determine the benefits of performing LC within 72hrs of ERCP.

METHODOLOGY: After institutional ethical approval this prospective cross-sectional study was performed at Madinah Teaching Hospital Faisalabad from April 2019 to June 2020. By performing convenience sampling, all patients undergoing LC after uneventful ERCP in our hospital were included. Study population was divided based on interval between ERCP and Cholecystectomy; Group-A had LC within 72hrs of ERCP, Group B had LC in same hospital stay after 72hrs and Group-C patients were discharged after ERCP and readmitted for LC. Data was collected using custom designed questionnaire, tabulated using Microsoft Excel 2016 and subjected to statistical tests to compare outcomes. Primary outcome was incidence of complications, while operative time, hospital stay and cost were considered as secondary outcomes. p-value of <0.05 was considered significant.

RESULTS: Total 75 patients were included in study, 32 in Group-A, 20 in Group-B and 23 in Group-C. Average age was 44.987 ± 14.819 and study population was predominantly female (86.67%). Complication rate, duration of hospital stay and average cost were less in Group A as compared to other groups (p<0.05). Mean operative time in 3 groups was similar.

CONCLUSION: LC within 72hrs after ERCP provides superior results in terms of fewer complications, shorter hospital stays and lesser cost.
The improvement of the Lower Limb exoskeletons on the gait of patients with spinal cord injury: A protocol for systematic review and meta-analysis
Authors:   Institute of Sports Medicine and Health, Chengdu Sport University, Yang Xinwei , Tu Huan , Xue Xiali
Published: August 2021

Review question / Objective: The purpose of this systematic review and meta-analysis was to determine the efficacy of lower extremity exoskeletons in improving gait function in patients with spinal cord injury, compared with placebo or other treatments. Condition being studied: Spinal Cord Injury (SCI) is a severely disabling disease. In the process of SCI rehabilitation treatment, improving patients' walking ability, improving their self-care ability, and enhancing patients' self-esteem is an important aspect of their return to society, which can also reduce the cost of patients, so the rehabilitation of lower limbs is very important. The lower extremity exoskeleton robot is a bionic robot designed according to the principles of robotics, mechanism, bionics, control theory, communication technology, and information processing technology, which can be worn on the lower extremity of the human body and complete specific tasks under the user's control. The purpose of this study was to evaluate the effect of the lower extremity exoskeleton on the improvement of gait function in patients with spinal cord injury.
CLOSTRIDIUM DIFFICILE IN DOLJ COUNTY (ROMANIA) – SURVEILLANCE INFORMATION 2015 TO 2016
Authors:   University of Medicine and Pharmacy, Craiova, Romania, Dragonu Livia ,   Hospital for Infectious Diseases and Pneumology "Victor Babes", Craiova, Romania, Cupsa Augustin ,   University of Medicine and Pharmacy, Craiova, Romania,   Hospital for Infectious Diseases and Pneumology "Victor Babes", Craiova, Romania, Bobarnac Ana ,   Public Health Department Dolj, Romania, Prunariu Ludmila ,   Public Health Department Dolj, Romania, Diaconescu Iulian Gheorghe ,   University of Medicine and Pharmacy, Craiova, Romania,   Hospital for Infectious Diseases and Pneumology "Victor Babes", Craiova, Romania
Published: August 2021

Objectives. The paper aims epidemiological characteristics of the nosocomial infection with Clostridium difficile (CDIn) based on surveillance data reported by medical facilities in Dolj County (Romania). Methods. We performed a retrospective study (January 2015 – December 2016) of 506 files with declaration of cases of C. difficile infections (CDI) recorded in adults. Results. CDIn represented 83.7% of the cases of CDI, an increase from 13.8 cases/month in 2015 to 21.5 cases/month in 2016. The symptoms began after discharge in 46.6% of cases and during hospitalization for 53.4% of the reported cases. The illness origin was in 47.8% of cases in a medical unit different from the reporting one. The number of CDIn was higher in the infectious disease wards (0.73 cases/bed/year) and intensive care (0.3 cases/bed/year). The main risk factors were the antibiotics administration (87.1%) and the age over 60 (69.3% of cases). The lethality by CDIn was 2.1% and in 5.7% of the cases, death being produced by aggravation of the associated pathology. Conclusions. The implementation of the CDI surveillance contributed to Dolj County to improve monitoring and identification of the risk factors associated to this disorder.
LITHIUM INTOXICATION IN INFECTIOUS CONTEXT OF A PATIENT ON CHRONIC LITHIUM THERAPY
Authors:   “Dr. Victor Babes” Clinical Hospital of Infectious and Tropical Diseases, Bucharest, Zaharia Mihaela , Cupsa Augustin ,   “Dr. Victor Babes” Clinical Hospital of Infectious and Tropical Diseases, Bucharest, Popescu Corneliu P. ,   “Dr. Victor Babes” Clinical Hospital of Infectious and Tropical Diseases, Bucharest,   “Carol Davila” University of Medicine and Pharmacy, Bucharest, Vlad Ionut ,   Faculty of General Medicine, Oradea, Florescu Simin ,   “Dr. Victor Babes” Clinical Hospital of Infectious and Tropical Diseases, Bucharest,   “Carol Davila” University of Medicine and Pharmacy, Bucharest, Ceausu Emanoil ,   “Dr. Victor Babes” Clinical Hospital of Infectious and Tropical Diseases, Bucharest
Published: August 2021

Introduction. In the history of his usage, by the 1850`s, Lithium was first used for the treatment of the gout. As mania and melancholia were included in the same diagnostic group, Lithium started to be used for the treatment of mental disorders. Nowadays, Lithium is still used in the bipolar disorder and as adjuvant in depression, schizophrenia, schizoaffective disorder and for the control of child aggressiveness. Methods and objective. Reporting a case of Lithium Intoxication in a patient with infection and chronic treatment with Lithium Carbonate. Objectives. Reporting a case of Lithium Intoxication in a patient with streptococcal angina infection and chronic treatment with Lithium Carbonate. Conclusion. Lithium intoxication may be rare in medical practice because of rare usage of Lithium therapy and strict monitorization of serum concentration. In this case, the tonsillar infectious accompanied by fever, impossibility of proper oral hydration and impairment of renal functions were the initial trigger of the pathological mechanism of intoxication syndrome. Secondary, the excretion of Lithium decreased and the low serum volume led to high blood concentration of Lithium. Later on, the gastrointenstinal impairment which appeared slowly added to the vicious circle which involved hydration, excretion and serum concentration of Lithium producing and intoxication syndrome.
CLOSTRIDIUM DIFFICILE ÎN JUDEŢUL DOLJ (ROMÂNIA) – DATE DE SUPRAVEGHERE 2015-2016
Authors:   Universitatea de Medicină şi Farmacie, Craiova, România, Dragonu Livia ,   Spitalul Clinic de Boli Infecţioase şi Pneumoftiziologie „Victor Babeş“, Craiova, România, Cupşa Augustin ,   Universitatea de Medicină şi Farmacie, Craiova, România,   Spitalul Clinic de Boli Infecţioase şi Pneumoftiziologie „Victor Babeş“, Craiova, România, Bobârnac Ana ,   Direcţia de Sănătate Publică Dolj, România, Prunariu Ludmila ,   Direcţia de Sănătate Publică Dolj, România, Diaconescu Iulian Gheorghe ,   Universitatea de Medicină şi Farmacie, Craiova, România,   Spitalul Clinic de Boli Infecţioase şi Pneumoftiziologie „Victor Babeş“, Craiova, România
Published: August 2021

Obiective. Lucrarea urmăreşte caracteristici epidemiologice ale infecţiei nosocomiale cu Clostridium difficile (ICDn) pe baza datelor de supraveghere raportate de unităţi medicale din judeţul Dolj (România). Material şi metodă. Studiu retrospectiv (ianuarie 2015 – decembrie 2016) al fişelor de declarare a 506 cazuri de infecţii cu Clostridium difficile (ICD) înregistrate la adulţi. Rezultate. ICDn au reprezentat 83,7% din ICD, înregistrând o creştere de la 13,8 cazuri/lună în 2015 la 21,5 cazuri/lună în 2016. Simptomatologia a debutat după externare în 46,6% din cazuri. Originea îmbolnăvirii a fost în 47,8% din cazuri într-o unitate medicală diferită de cea raportoare. Numărul ICDn a fost mai mare în secţiile de boli infecţioase (0,73 cazuri/pat/an) şi de terapie intensivă (0,3 cazuri/pat/an). Principalii factori de risc au fost administrarea de antibiotice (87,1%) şi vârsta peste 60 ani (69,3% din cazuri). Letalitatea prin ICDn a fost de 2,1% iar în 5,7% din cazuri decesul s-a produs prin agravarea patologiei asociate. Concluzii. Aplicarea programului de supraveghere a ICD în judeţul Dolj a contribuit la îmbunătăţirea monitorizării şi identificării factorilor de risc asociaţi acestei afecţiuni.
ENTEROPATIA EXUDATIVĂ DUPĂ ENTEROCOLITĂ INFECŢIOASĂ LA COPIL – PREZENTARE DE CAZ ŞI DATE DIN LITERATURĂ
Authors:   Clinica Pediatrie 1, Tg. Mureş, Meliţ Lorena Elena ,   Universitatea de Medicină şi Farmacie, Tg. Mureş, Mărginean Cristina Oana ,   Clinica Pediatrie 1, Tg. Mureş,   Universitatea de Medicină şi Farmacie, Tg. Mureş, Dincă Andreea ,   Clinica Pediatrie 1, Tg. Mureş, Damian Raluca ,   Clinica Neonatologie 1, Tg. Mureş, Mărginean Cristian Dan ,   Universitatea de Medicină şi Farmacie, Tg. Mureş
Published: August 2021

Enteropatia exudativă (EE) reprezintă o pierdere proteică anormală la nivelul mucosei tractului digestiv, fiind în majoritatea cazurilor secundară altor patologii gastro-intestinale sau extraintestinale. Cu toate acestea, există, de asemenea, cauze primare, genetice asociate cu EE. Prezentăm cazul unui copil mic, de sex feminin, în vârstă de 1 an şi 1 lună, cu un episod de enterocolită infecţioasă cauzată de Escherichia coli enteropatogen în antecedente, care s-a internat în clinica noastră cu edeme palpebrale matinale de aproximativ 1 săptămână. Analizele de laborator au evidenţiat hipoalbuminemie, hipogamaglobulinemie de tip A şi G, leucocitoză cu eozinofilie, şi anemie. Testul pentru detectarea hemoragiilor oculte din scaun a fost pozitiv, precum şi alfa-1 antitripsina şi calprotectina fecală. Am identificat, de asemenea alergie la proteinele laptelui de vacă, pe care am interpretat-o ca fiind secundară patologiei intestinale. Astfel, am stabilit diagnosticul de enteropatie exudativă după un episod de enterocolită acută cauzat de E. coli enteropatogen, şi am administrat tratament substitutiv cu albumină umană şi corticosteroizi, cu evoluţie favorabilă. Particularitatea cazului constă în diagnosticarea unui caz sever de enteropatie exudativă la un copil mic cu edeme palpebrale matinale, şi nivele scăzute ale albuminei serice, după un episod de enterocolită cauzat de E. coli enteropatogen, care s-a remis fără tratament etiologic.
NEUROPSYCHIATRIC SYMPTOMS IN ELDERLY – A SHORT PRACTICAL APPROACH
Authors:   2nd Department of Neurology, “Colentina” Clinical Hospital, “Carol Davila” University of Medicine and Pharmacy, Bucharest, Davidescu Irene
Published: August 2021

Life expectancy increases neurological and psychiatric pathology in the elderly. Neurocognitive disorders have an increasing incidence and therefore Alzheimer’s disease and vascular dementia become a common pathology. Delirium is a quite frequent symptom in general practice and managing agitation in elders can become challenging for the doctor, especially because of presence of comorbidity and sometimes of paradoxical reactions due to cerebral vulnerability. Neuropsychiatric symptoms are a challenge in management of patients with neurodegenerative disorders, being a real burden for patients themselves, caregivers and medical staff. A concise guide for managing these symptoms with non-pharmacological methods and drugs allowed in such conditions
SPORADIC CREUTZFELDT-JAKOB DISEASE: A CLINICAL APPROACH OF A SMALL CASE SERIES AND LITERATURE REVIEW
Authors:   Ist Neurology Clinic, Mures County Clinical Emergency Hospital, Andone Sebastian , Petrutiu Sanda ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital, Bajko Zoltan ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital,   Department of Neurology, University of Medicine and Pharmacy, Targu Mures, Motataianu Anca ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital,   Department of Neurology, University of Medicine and Pharmacy, Targu Mures, Maier Smaranda ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital,   Department of Neurology, University of Medicine and Pharmacy, Targu Mures, Macavei Ioan ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital, Stoian Adina ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital,   Department of Physiopathology, University of Medicine and Pharmacy, Targu Mures, Balasa Adrian ,   Department of Neurosurgery, University of Medicine and Pharmacy, Targu Mures,   Neurosurgery Clinic, Mures County Clinical Emergency Hospital, Balasa Rodica ,   Ist Neurology Clinic, Mures County Clinical Emergency Hospital,   Department of Neurology, University of Medicine and Pharmacy, Targu Mures
Published: August 2021

Introduction. Creutzfeldt-Jakob Disease (CJD) is a very rare neurodegenerative disease with no cure that always leads to death. It is the most frequent prion disease and has multiple recognized forms, from which the sporadic form (sCJD) is the most common. The defining histological characteristic of CJD is the accumulation of the abnormal prion protein (PrPSc) along with neuronal loss and spongiform vacuolation. Typical neurological signs found in sCJD are rapidly progressive dementia, myoclonus, visual disturbances, pyramidal signs, extrapyramidal signs, behavioral changes and akinetic mutism. Material and method. We performed a retrospective study over the 2007-2017 period that included five cases of patients diagnosed with probable sCJD from our department. Results. The most common findings in the patients’ MRI were cerebral atrophy and ventricular enlargement, but we also found typical MRI changes such as increased T2 and FLAIR signal intensity in the head of the caudate nucleus, putamen and cerebral cortex. Repeated electroencephalograms showed typical sCJD patterns like periodic sharp wave complexes, mostly with biphasic or triphasic aspect. A complex differential diagnosis and numerous routine investigations (CBC, biochemical analysis, autoimmune panel, HIV antibodies, VDRL, anti-Borrelia antibodies, anti-TPO antibodies, anti-neuronal antibodies, B12 vitamin) were performed, without indicating an alternative diagnosis. All the patients died several months after the onset of symptoms. Conclusions. Given the rarity of the disease and the broad differential diagnosis, CJD proves to be a diagnostic challenge. In the absence of an alternative diagnosis, the association of rapidly progressive dementia, myoclonus, visual and cerebellar signs are highly suggestive for sCJD.
Menakar Mutasi dan Kinerja Pegawai di Sektor Pendidikan
Authors: Puspitasari Amanda Yola , Verawati Dian Marlina
Published: August 2021

This study aims to determine the description of employee mutations in the Department of Education and Culture of the City of Magelang. And to find out whether the mutation can improve employee performance or not. The research method used is quantitative and analyzed using descriptive qualitative methods. The sampling technique is Proportionate Stratified Random Sampling. The number of popylates in this study was 85 employees, while for the number of samples used were 8 employees with conditions including permanent employees and THL who had experienced mutations. Mutations held at the Department of Education and Culture of the City of Magelang in order to refresh the organization so it is not saturated. The results of this study indicate that the implementation of mutations has been done well by the leadership. This can be seen from the positive responses of employees who have mutations and high employee performance seen from the timeliness of employees in working and the use of working tools to the full.
Kepuasan Pelanggan, Kualitas Pelayanan, Varian Produk, dan Kualitas Produk
Authors: Maha Resti Indriana
Published: August 2021

The purpose of this research is to find out of the effect of service quality, product variants and product quality towards customer satisfaction. this research is focused on product or buyers at Batik Fajar Indah Surakarta. This research’s type quantitative descripte. this research’s population of this study were buyers for 3 months in 2020 is 1.350 and the sample of this researched is totally 100 responden. Data collection method use questionarie method with accidental sampling technique, and analysis technique used multiple linear regression analysis. The concluded of this researched is servive quality, product variants and quality product influencences significantly towards customer satisfaction.
Feasibility Analysis for Investment of Cargo Village Development in Soekarno-Hatta International Airport
Authors: Nurlita Meutia Damai , Masyita Dian , Faisal Yudi Ahmad
Published: August 2021

The sector of world air cargo industry has become broader becoming one of the most integral parts of the global economy, as a significant airport company in Indonesia, PT Angkasa Pura II (Persero), AP2, builds Cargo Village of the Soekarno-Hatta International Airport to provide the best air cargo service providers to meet the competition in the global market. This research aims to investigate the most suitable Construction Staging scenario of the Cargo Village construction project for investment decision by using business issue analysis and financial analysis. This study uses mixed methodology, a combination of qualitative and quantitative research methods. The qualitative method in this study aims to assess the external conditions and AP2 resources, by TOWS Analysis method. Meanwhile, quantitative research methods are used to conducting Financial Feasibility in form of Capital Budgeting Payback Period (PP), Net Present Value (NPV) and Internal Rate of Return (IRR) for several scenarios of development staging. The result shows that AP2 continuously improves its capabilities and core competencies as the internal strength to balance the threat from outside the company and is prepared to start taking advantage of the opportunity available from the external environment to gain more knowledge to take a new step for comprehensive cargo business. the construction of Cargo Village is feasible to be done by the three scenarios of development staging. This research found that Development scenario of finishing the construction on the main cargo terminal building, which has the biggest investment cost prior to the construction of warehouse and additional services such as perishable and transhipment, gives the best result with the largest value of NPV & IRR and less payback period.
Touching the Stars: Using High-resolution 3D Printing to Visualize Stellar Nurseries
Authors: Imara Nia , Forbes John C. , Weaver James C.
Published: August 2021

Owing to their intricate variable density architecture, and as a principal site of star formation, molecular clouds represent one of the most functionally significant, yet least understood features of our universe. To unravel the intrinsic structural complexity of molecular clouds, here we leverage the power of high-resolution bitmap-based three-dimensional (3D) printing, which provides the opportunity to visualize astrophysical structures in a way that uniquely taps into the human brain's ability to recognize patterns suppressed in 2D representations. Using a new suite of nine simulations, each representing different physical extremes in the turbulent interstellar medium, as our source data, our workflow permits the unambiguous visualization of features in the 3D-printed models, such as quasi-planar structures, that are frequently obscured in traditional renderings and animations. Our bitmap-based 3D printing approach thus faithfully reproduces the subtle density gradient distribution within molecular clouds in a tangible, intuitive, and visually stunning manner. While laying the groundwork for the intuitive analysis of other structurally complex astronomical data sets, our 3D-printed models also serve as valuable tools in educational and public outreach endeavors.
Current vegetation data from the Prioksko-Terrasnyi Biosphere Reserve
Authors: Shovkun Mikhail , Ivanova Natalya , Khanina Larisa , Romanov Michael , Demidov Vasily
Published: August 2021

Here we present the sampling event dataset that contributes to the knowledge of current vegetation of the Prioksko-Terrasnyi Biosphere Reserve (part of the UNESCO World Network of Biosphere Reserves), Moscow Region, Russia. The Reserve is situated on the terraces of the Oka River in the zone of mixed coniferous forests.

The dataset provides 269 relevés (9174 associated occurrences) of renewed vegetation collected in 2019-2020. It is aimed at sampling vegetation data from the Reserve area with particular interest to sites with invasive species and sites with recent deadfall in the spruce stands caused by the bark beetle-typographer. The dataset contains representative information on plant communities in localities with assigned GPS coordinates, sampled using the standard relevé method with the Braun-Blanquet cover-abundance scale. During this study, we found two vascular plant species included in the Red Data Book of the Russian Federation, 25 species from the Red Data Book of Moscow Region, as well as 19 alien vascular plant species for the Reserve. These data contribute to our knowledge of species composition and structure of a renewed vegetation of the Reserve, protected and alien species distribution.
Aberrant ontogeneses and life cycles in Paraneoptera
Authors: Gavrilov-Zimin Ilya A.
Published: August 2021

The paper is a third part of the themed issue “Aberrant cytogenetic and reproductive patterns in the evolution of Paraneoptera”, prepared by a Russian-Bulgarian research team on the basis of long-term collaborative studies. This chapter reviews different peculiar aberrations in the ontogenesis of Paraneoptera, such as the appearance of the quiescent apodal and/or arostrate instars, exuviatrial, pupillarial and pseudopupillarial development, cyclic parthenogenesis, etc. The material and methods, terminology and the nomenclature of the used taxonomic names are listed in the first chapter of the issue (Gavrilov-Zimin et al. 2021).
Pseudostellaria wuyishanensis, a new species of Caryophyllaceae from Fujian, China
Authors: Luo Xiao , Yang Qi-Yi , Zhang Zhe , Zhu Pan , Ma Liang , Chen Xin-Yan , Lin Shu-Yi , Chen Shi-Pin
Published: August 2021

Pseudostellaria wuyishanensis, a new species from the Wuyishan National Park, Fujian, China, is described and illustrated. Morphologically, Pseudostellaria wuyishanensis resembles P. heterantha. However, the new species can be distinguished by presence of stolons, 1 line of hairs on the stem, smaller leaf blades, shorter pedicels, and ovary with 2 styles.
The relaxation limit of bipolar fluid models
Authors: Alves Nuno J. , Tzavaras Athanasios E.
Published: August 2021

This work establishes the relaxation limit from the bipolar Euler-Poisson system to the bipolar drift-diffusion system, for data so that the latter has a smooth solution. A relative energy identity is developed for the bipolar fluid models, and it is used to show that a dissipative weak solution of the bipolar Euler-Poisson system converges in the high-friction regime to a strong and bounded away from vacuum solution of the bipolar drift-diffusion system.
A second look at the Kurth solution in galactic dynamics
Authors: Kunze Markus
Published: August 2021

The Kurth solution is a particular non-isotropic steady state solution to the gravitational Vlasov-Poisson system. It has the property that by means of a suitable time-dependent transformation it can be turned into a family of time-dependent solutions. Therefore, for a general steady state \begin{document}$ Q(x, v) = \tilde{Q}(e_Q, \beta) $\end{document}, depending upon the particle energy \begin{document}$ e_Q $\end{document} and \begin{document}$ \beta = \ell^2 = |x\wedge v|^2 $\end{document}, the question arises if solutions \begin{document}$ f $\end{document} could be generated that are of the form

   \begin{document}$ f(t) = \tilde{Q}\Big(e_Q(R(t), P(t), B(t)), B(t)\Big) $\end{document}

for suitable functions \begin{document}$ R $\end{document}, \begin{document}$ P $\end{document} and \begin{document}$ B $\end{document}, all depending on \begin{document}$ (t, r, p_r, \beta) $\end{document} for \begin{document}$ r = |x| $\end{document} and \begin{document}$ p_r = \frac{x\cdot v}{|x|} $\end{document}. We are going to show that, under some mild assumptions, basically if \begin{document}$ R $\end{document} and \begin{document}$ P $\end{document} are independent of \begin{document}$ \beta $\end{document}, and if \begin{document}$ B = \beta $\end{document} is constant, then \begin{document}$ Q $\end{document} already has to be the Kurth solution.

This paper is dedicated to the memory of Professor Robert Glassey.
Hopf bifurcation in a delayed predator-prey system with asymmetric functional response and additional food
Authors: Wu Luoyi ,   Department of Mathematics and Computer, Wuyi University, Wuyishan, Fujian, 354300, China, Zheng Hang ,   Digital Fujian Tourism Big Data Institute, Wuyishan, Fujian, 354300, China
Published: August 2021

In this paper, a delayed predator-prey system with additional food and asymmetric functional response is investigated. We discuss the local stability of equilibria and the existence of local Hopf bifurcation under the influence of the time delay. By using the normal form theory and center manifold theorem, the explicit formulas which determine the properties of bifurcating periodic solutions are obtained. Further, we prove that global periodic solutions exist after the second critical value of delay via Wu's theory. Finally, the correctness of the previous theoretical analysis is demonstrated by some numerical cases.
Provjera faktorske strukture hrvatske verzije upitnika „Fleksibilnost granica radne i obiteljske uloge“
Authors: Laklija Maja , Blažeka Kokorić Slavica , Berc Gordana
Published: August 2021

FACTORS’ STRUCTURE OF CROATIAN VERSION OF THE QUESTIONNAIRE »BOUNDARY FLEXIBILITY OF WORK AND FAMILY ROLE The aim of this paper was to verify the factor structure and metric characteristics of the Croatian version of the questionnaire »Boundary Flexibility« (Matthews & Barnes-Farrell, 2010.). The survey was conducted on a convenient sample of 187 employed parents of underage children. In the data analysis, factor analysis and Spearman correlation coefficient were used. The three-factor structure of the questionnaire was obtained: the first factor »Family plans adjustment to the job requirements« contains six items (Cronbach alfa = 0.891), indicating readiness of respondents to adjust family plans to job requirements. The second factor in »Job requirements adjustment to the family role« (Cronbach alpha = 0.814) contains eight items, which point out the ability and willingness of respondents to adjust their job requirements to family obligations. The third factor, »Possibility of increased engagement at work without major difficulties in performing family obligations«, contains four items (Cronbach alpha = 0.784), and refers to the respondents’ ability to meet increased demands at work, without adverse effects and significant difficulties in the family role. Given that the extracted sub-scales are not fully matched to the factor structure of the original questionnaire, the obtained results point out to certain specifics in the application of the Croatian version of this questionnaire. Verification of the metric characteristics has shown the satisfactory reliability of the obtained sub-scales and the possibility of further application of this instrument. Key words: work-family role balance, boundary flexibility, metric characteristics of the questionnaire.
Isplativost rada u Hrvatskoj i Sloveniji: analiza pomoću mikrosimulacijskog modela
Authors: Bezeredi Slavko
Published: August 2021

WORK INCENTIVES IN CROATIA AND SLOVENIA: ANALYSIS USING MICROSIMULATION MODELS The paper analyzes the impact of the tax-benefit system on work incentives in Croatia and Slovenia. Unemployed and inactive persons and their hypothetical transitions to employment are considered. As the main indicator of work incentives, the participation tax rate (PTR) is estimated, as it represents a portion of additional income that is lost because taxes increase and benefits decrease in transition of a person from non-employment into employment. Unlike previous research, which was made for both countries on hypothetical data, in this paper for the first time the calculations and analysis of PTR are based on survey data, which for both countries gives a realistic picture of the situation in the field of work incentives. The analysis is carried out on data and the tax-benefit system for 2017, and the main tool used is EUROMOD, a tax-benefit microsimulation model for the EU countries. The results show that the average PTR in Croatia is of a moderate size of 31.3%, while in Slovenia it is 11.3 percentage points higher. People with higher number of dependent children and those with lower level of market income obtained by other household members are more likely to have a high PTR in both countries, and in Croatia people with only primary education will also have it. Key words: participation tax rate, work incentives, EUROMOD, Croatia, Slovenia
Musarna 4
Authors: Leone Julie
Published: August 2021

La céramique à paroi fine fait partie des groupes céramiques les mieux représentés dans les contextes archéologiques d’époque romaine, plus particulièrement dans ceux compris entre le IIe siècle av. J.-C. et le IIe siècle ap. J.-C.. Caractéristique de la romanisation, on la retrouve dans l’ensemble de la Péninsule italique et des territoires conquis. Sans pouvoir être regroupée sous une définition technique univoque, elle désigne principalement des vases à boire dont le répertoire morphologique se met en place dans la seconde moitié du IIe siècle av. J.-C.
Sur la base de découvertes particulièrement abondantes, son émergence a été localisée en Étrurie méridionale. Fondée par Tarquinia, la cité étrusco-romaine de Musarna se trouve au centre de cette région et la vingtaine de campagnes de fouilles menée par l’École Française de Rome a permis de mettre au jour une importante quantité de céramique à paroi fine, particulièrement bien conservée. Son étude, qui sera suivie de celles notamment des céramiques à vernis noir et des céramiques communes, a semblé pertinente afin de mieux définir la vaisselle d’Étrurie romaine, dont les caractéristiques typologiques sont parmi les plus influentes dans l’ensemble du monde romain.
Le corpus de Musarna a ainsi été quantifié, caractérisé techniquement et il été possible de construire une typologie afin de suivre son évolution et sa diffusion. À la lumière des découvertes les plus récentes et d’études typologiques parallèles, les questions de l’émergence du groupe et de sa fonction ont également pu être à nouveau abordées. L’étude a par ailleurs mis en évidence l’hétérogénéité de sa production et de sa diffusion en Étrurie, et plus largement dans la partie tyrrhénienne de l’Italie centrale dont les différences apparaissent comme le timide reflet de singularités productives et commerciales des différents territoires qui composent cette région.
Classification of Mason’s Skills by Analysis of Selected Churches of the Broumov Group
Authors: Kuklík Pavel , Valek Martin , Paschopoulos Charalampos
Published: August 2021

The churches of the Broumov region are renowned for their unique baroque architecture, their distinct shapes, and sizes. They are an integral part of the Czech cultural heritage. If you analyze the churches, it becomes evident that both the local geological conditions and the municipal economic situation have played an important role in their current condition. Moreover, the local construction industry has been significantly affected by historical events. In this article we would like to present the effects of those factors on the current state of selected churches, namely on the bearing capacity of their walls. Besides being very interesting, it also plays a key role in the maintenance and the potential reconstruction of the churches.
Multi-Purpose Physical Educational Facility in Brno-Žabovřesky, Sirotkova 36 - Structural Support Technology of the South Wing for a Heritage-Listed School through the Eyes of a General Designer
Authors: Gerö Jiří
Published: August 2021

The facade of the old school is registered in the list of cultural monuments and located in the conservation zone of the urban monument reservation. Due to the construction of a new building, it was necessary to reinforce and structurally support (by means of an anchored reinforced concrete wall) the south wing of the old section of the school. No fissures were allowed to develop because they could damage the valuable art nouveau facades. Therefore, great emphasis was given to the technological and structural design of the reinforced concrete gunite wall. Precise geodetic measurements confirmed that the decline of the south wing of the school of the gunite wall was minimum, specifically 1,5 mm, after the completion. No cracks appeared. The building won first place in the “Building of the South Moravian Region” competition in 2018 in the category of public utilities in the Czech Republic – see www.gero.cz.
О минимизационной задаче Шаллита
Authors: Sadov Sergey Yur'evich
Published: August 2021

В задаче Дж. Шаллита из SIAM Review 1994 г. предлагалось
обосновать двучленную асимптотику минимума
рациональной функции $n$ переменных,
определенной как сумма специального вида
с числом слагаемых порядка $n^2$ при $n\to\infty$. Особый интерес
представляет второй член асимптотики ("постоянная Шаллита").
Опубликованное в SIAM Review решение содержало
итерационный алгоритм вычисления этой постоянной,
включающий вспомогательные последовательности,
обладающие определенными свойствами монотонности.
Однако строгое обоснование упомянутых свойств,
необходимое для заключения о сходимости итерационного процесса,
было заменено ссылками на численные данные. В настоящей работе
пробелы в доказательстве восполнены на основании анализа траекторий
двумерной динамической системы с дискретным временем,
соответствующих точкам минимума $n$-х сумм. Кроме того,
получена точная экспоненциальная оценка остатка
в асимптотической формуле Шаллита.
Библиография: 9 названий.
Two Dimensional Static Mechanical Analysis of Laminated Composite Tube Using ABCDE Matrix with No Correction Factor
Authors: Ndengna Arno Roland Ngatcha , Gnidakouong Joel Renaud Ngouanom , Pandong Achille Njomoué , Mbangue Ekmon
Published: August 2021

Accurate modeling and prediction of materials properties is of utmost importance to design engineers. In this study, newly developed two-dimensional laminate constitutive equations (LCE) were derived directly from an existing shell model without using a classical correction factor. The resulted LCEs were subsequently used for the first time to analyze a laminated composite tube (LCT) subjected to in plane-loading. This led to additional composite-shell stiffness coefficients which are not currently available in some LCEs. The strains and stresses distribution fields were computed via Matlab. The accuracy and robustness of our analytical method were proven by opposing the as-obtained results of thick and thin LCTs with that of existing theories which use a correction factor. An excellent convergence was observed. Whereas a lower convergence was observed in the case of a laminated shell plate. Results also showed that the thickness ratio χ (2χ=h/R ) considerably influences the mechanical behavior of the LCT. In fact when χ<0.1, the distribution of stresses and strains of the tube were the same for the two opposed theories. When χ>0.1, the distribution of stresses and strains were not the same, hence the contribution of our ABCDE matrix. The new mechanical couplings in our LCE could be well illustrated in a finite element package with visualization tools to observe some intricate deformations which are yet to be seen. Thus the outcome of this work will be of particularly interest to promote advanced scientific and structural engineering applications.
Kinked coronary saphenous vein graft after aortic dissection surgery: An unusual differential diagnosis of cardiac tamponade
Authors: Rathore Kaushalendra , Teh Mark , Newman Mark
Published: August 2021

A 73-year-old female patient presented with cardiac tamponade following Stanford type A aortic dissection required immediate pericardiocentesis and followed by root replacement with coronary artery bypass grafting. The patient's postoperative course was eventful and coronary graft kinking contributed to myocardial ischemia, but the presentation was confused with cardiac tamponade.
Retos actuales de la formación en investigación cualitativa en educación
Authors: Sandín Esteban María Paz
Published: August 2021

El presente trabajo corresponde a la Conferencia de Clausura impartida en el “I Encuentro Internacional de Investigación Cualitativa en Educación” (Barquisimeto, 2005). En ella se abordan diversas cuestiones relacionadas con la enseñanza de la investigación cualitativa en el nivel universitario y en el ámbito pedagógico. La capacitación metodológica de los futuros profesionales de la educación nos sitúa como formadores ante el reto de dirigir nuestra acción docente, de forma simultánea, hacia el saber, y hacia los estudiantes. Así, a lo largo de este ensayo se hace especial hincapié en los siguientes aspectos: a) la necesidad de los espacios, institucionales y curriculares; b) la necesidad de incorporar y ampliar la visión sintáctica de las disciplinas en la formación; c) la importancia de otras miradas; d) la mirada cualitativa; e) la formación epistemológico-teórica; f) el yo como instrumento; g) la recurrencia entre la recogida y el análisis de la información; h) hacer ciencia o enseñar a hacerla; i) el conocimiento didáctico del contenido.
Una aproximación a los conceptos: Paradigma, Modernidad y Postmodernidad
Authors: Rodríguez Elda María
Published: August 2021

El presente estudio de carácter documental plantea como propósito analizar, desde la filosofía de la ciencia, las distintas construcciones y deconstrucciones realizadas sobre las categorías: paradigma, modernidad y postmodernidad. Para desarrollar ese objetivo se recurre al análisis critico de diversas fuentes documentales que permiten revisar las distintas posturas y cosmovisiones de autores que dentro de sus investigaciones han abordado las categorías en referencia. Se concluye que su uso siempre va a estar condicionado y siempre en concordancia con los modos de vida históricamente dados; por tanto estarán sujetas a reinterpretaciones de acuerdo con la dinámica social permitiendo. generar nuevos conocimientos.
¿Fenómenos fonéticos-fonológicos o procesos de evolución fonetológica?
Authors: Zapata Chinger
Published: August 2021

El siguiente ensayo propone la utilización del constructo procesos de evolución fonetológica, para designar a las modificaciones de los sonidos consonánticos que se dan en la cadena hablada, en lugar de la existente fenómenos fonéticos o fonológicos. Primeramente se presenta la situación objeto de discusión. Luego se introduce la propuesta, la cual es apoyada por un sustento teórico en el que también se describe tres casos particulares de producción de sonidos consonánticos: yeísmo, lambdacismo - rotacismo y glotalización del fonema / s /. Finalmente se concluye que los procesos anteriormente citados son el producto de cambios evolutivos en la lengua a través del tiempo y se hace una invitación a seguir investigando para profundizar en el tema.
Valores relacionados con sexualidad, alcoholismo y tabaquismo en adolescentes. Manual teórico-práctico para su desarrollo
Authors: Pérez Valero Carli R. , Molina de Colmenares Nora
Published: August 2021

Proyecto especial enmarcado en el paradigma cualitativo, apoyado en el método etnográfico, tuvo como propósito diagnosticar los valores de dos alumnos de ambos sexos, de octavo grado de Educación Básica, en relación con la sexualidad, el alcoholismo y tabaquismo. La entrevista en profundidad con preguntas abiertas permitió indagar los pensamientos, sentimientos y acciones que denotaran valores vinculados a los temas señalados. En el análisis de datos cualitativos se utilizó la técnica por categorización. Se contrastó simultáneamente la información obtenida de las entrevistas y la teoría recopilada, lo que permitió concluir que los adolescentes no poseen un cuerpo de valores sólido para prevenir conductas no saludables. Se elaboró un manual teórico-práctico dirigido a promover en los estudiantes adolescentes la adquisición de conocimientos y un conjunto de valores asociados que le permitan asumir actitudes y conductas responsables y sin riesgos en los temas investigados.
De las representaciones sociales a las configuraciones sociales: un debate epistémico en las Ciencias Sociales
Authors: Muhamad Asmat Engly , Sánchez de Varela Fanny
Published: August 2021

Como un intento de superar el enfoque tradicional positivista, en el presente ensayo se debaten aspectos inherentes a la objetivación, el anclaje, la subjetivación y la intersubjetividad que en términos epistemológicos socioconstruccionistas, estos comportan la posibilidad de configurar las representaciones sociales para la producción del conocimiento, el cual transita en la triada mente-cultura¬ sociedad. Utilizando la revisión documental, se asume que los seres humanos por naturaleza, disponen de múltiples procesos simbólicos de comunicación -incluyendo el lenguaje verbal¬ hablado y escrito, el gestual y las imágenes-, a través de los cuales otorgan signos, sentidos, significados y símbolos a los fenómenos sociales. Al comunicarse y relacionarse intersubjetivamente producen ideas, interpretan y reinterpretan la realidad social y originan así las representaciones sociales. En el seno de las instituciones educativas, los investigadores deben estar prestos para escuchar atentamente el discurso de los actores sociales, y permitirles expresar su ser edificado en el transitar socio-histórico-cultural.
Diseño instruccional de la educación en línea usando el modelo ASSURE
Authors: Dávila Alirio Antonio , Francisco Pérez Judith
Published: August 2021

Este trabajo tiene como propósito divulgar una experiencia educativa de los autores en la Universidad Centroccidental Lisandro Alvarado (VCLA) sobre la adaptación y aplicación del Modelo ASSURE (Heinich, Molenda, Russell, y Smaldino, 2002) para guiar el diseño instruccional de cursos en línea. Se comprobó que el modelo ASSURE es aplicable y pertinente en un contexto de formación a distancia y no demanda necesariamente la intervención de equipos multidisciplinarios de planificadores. El seguimiento adecuado del modelo permite que los planificadores del proceso instruccional en línea dispongan de un plan de acción detallado y bien definido para el análisis, diseño, preparación y evaluación de la instrucción. El modelo es fácil de aplicar y facilita condiciones para llevar a cabo un proceso instruccional a distancia efectivo para el logro de aprendizajes significativos.
Organizaciones virtuales de educación superior: de la utopía a la realidad
Authors: Mathison Luis , García García Luis Rafael , Gándara Antonio
Published: August 2021

El presente artículo a través de una investigación de tipo bibliográfico-documental pretende plantear como el surgimiento de las organizaciones virtual es, puede propiciar el renacer de una nueva institución de educación superior; donde (1) la incorporación de tecnología al proceso de la docencia, puede permitir la transferencia de conocimiento sin restricción de espacio y tiempo, (2) se propicie el desarrollo de nuevo conocimiento a través de la creación de equipos de investigación multi, inter y transdisciplinarios, sin límites de espacio y tiempo, a través del aprovechamiento de las TICs. Propiciando que estas instituciones se adecuen a los paradigmas emergentes y se logre asi una verdadera universalización y globalización del conocimiento con fuerte pertinencia social Descriptores: Organización Virtual, TICs, Educación Superior
Estudio comparativo de las características antropométricas de las gimnastas larenses con las gimnastas que participaron en el Campeonato Panamericano en Medellín
Authors: Yústiz Kerio , Gutiérrez Orlando , Ramírez Loreana
Published: August 2021

El estudio es una investigación de campo, descriptiva. El mismo compara las características antropométricas de las gimnastas del estado Lara y las gimnastas que participaron en el campeonato Panamericano realizado en Medellín, Colombia. Los valores del promedio y desviación estándar (DE), se agruparon con los valores del índice de Masa Corporal (IMC) e índice de Sustancia Activa o índice Córmico (AKS) de los dos grupos. Los resultados muestran los perfiles de las gimnastas del estado Lara y las del área panamericana. Finalmente se concluye que las gimnastas larenses se ubican en el área central, ectomórfica mesomórfica, mientras que las gimnastas de la región panamericana se ubicaron en la intersección del área central mesomórfica balanceada. También se pudo observar similitud en las medidas somatotípicas y una pequeña diferencia en su DE.
El poder del discurso pedagógico en el aula de clase
Authors: Rodríguez Nelson C.
Published: August 2021

Esta investigación descriptiva tuvo como objetivo analizar las relaciones de poder en el discurso del aula para determinar las relaciones de fuerza del locutor con respecto a sus interlocutores. Teóricamente se empleó el fenómeno enunciativo, modalización, el discurso de poder y la concepción de Bernstein (1989, 2000). La muestra consistió de registros orales de 6 horas de clase grabadas al azar entre los profesores del Pedagógico de Barquisimeto. La unidad de análisis fue el turno de palabra controlada por los "lugares apropiados para la transición" (LAT). La información fue analizada en matrices. Los resultados muestran que los profesores mantienen un discurso privilegiado utilizado como forma de control. Esto se refleja en la modalización de sus enunciados por alocución en un 55,84%. Se concluyó que los docentes tienden hacia el autoritarismo y tienen mayor acceso discursivo que sus estudiantes los cuales influyen en la reducción del habla estudiantil.
Perfil de competencias específicas del(la) egresado(a) del Programa de Educación Técnica Comercial de la UPEL-IPB
Authors: Escalona Mary Carolina , Machado Nelly
Published: August 2021

La presente investigación de campo, de carácter descriptiva, tuvo como propósito establecer el perfil de competencias específicas de los(as) egresados(as) de la especialidad de Educación Técnica Comercial de la UPEL-IPB, en el contexto local y para el momento actual, como proyección académica al Diseño Curricular por Competencias que adelanta la UPEL. En una fase preparatoria se describieron escenarios de competencias, atendiendo a las menciones del nivel medio, diversificado y profesional. En una segunda fase, se determinó el perfil de competencias de estudiantes y trabajadores, por escenarios de competencia, a partir de la selección de 28 estudiantes que realizaban se pasantía ocupacional, 33 trabajadores del nivel gerencial y 133 trabajadores del nivel operativo. Finalmente, en una tercera fase, se describieron diez (10) escenarios de competencias y se estableció el perfil de competencias específicas de la referida especialidad, en atención a su validez académica y pertinencia social.