bluuebunny/crossref_metadata_2025 huggingface dataset:
Interrelationship of psychological distress, basic beliefs and perceptions of family relationships in informal caregivers of children and adults with epilepsy
Authors: Shishkova Alexandra M. , Bocharov Viktor V. , Tverdokhlebova Anastasia M. , Chernaya Yulia S. , Vuks Aleksandr Ja. , Mikhailov Vladimir A. , Sivakova Natalia A.
Published: November 2022

BACKGROUND: Relatives caring for an epilepsy patient play a significant role in the care system and maintaining the well-being of the chronically ill and often suffer from significant stress.

AIM: The aim of the study was to reveal the relationship of psychological distress, basic beliefs and perceptions of family relationships in relatives taking care of children and adults with epilepsy.

MATERIALS AND METHODS: The study involved 62 relatives caring for patients with epilepsy, 44 relatives of children (mean [SD] age, 34,64 6,73 years) and 18 relatives of adults (mean [SD] age, 48,72 10,99 years). The Symptom Checklist-90-Revised (SCL-90-R), the World Assumption Scale and the Family Environment Scale was used as an assessment tools. Also semi-structured interview for assessing socio-demographic and clinical characteristics was applied.

RESULTS: The results of the study revealed significant similarities of the studied groups both in the explication of the psychopathological symptoms and in perception of their own personality, the surrounding world and intra-family interaction. Informal caregivers of such patients demonstrates significant variability and severity of psychopathological symptoms. And their perception of themselves and the surrounding world is characterized by the faade tendencies that act as psychological protection that prevents the catastrophizing of the subjective assessment of the situation associated with the chronic disease of a loved one.

CONCLUSIONS: The study demonstrated the need to develop specialized psychotherapeutic interventions aimed at reducing the level of psychological distress in informal caregivers of patients with epilepsy. During the development and carrying out of such interventions, it is important to take into account the subjective assessment of caregivers available life situation, as well as his/her personal values and attitudes that largely determine the severity of psychopathological symptoms.
Comparative study of microbial colonization of catheters for prolonged regional anesthesia when using different fixation methods
Authors: Yakovleva Ekaterina S. , Diordiev Andrey V. , Adkina Elena A. , Shagurin Roman V. , Yakovlev Sergey V. , Kulagina Yuliya M. , Golovinskaya Nadezhda A.
Published: November 2022

BACKGROUND: Infectious complications related to prolonged epidural and peripheral regional anesthesia are quite rare. However, this does not exclude the necessity of strict adherence to measures aimed at preventing microbial colonization of catheters for regional anesthesia. Microbial colonization of the catheter is not always accompanied by the development of infectious complications but increases the likelihood of their occurrence.

AIM: To determine the frequency of colonization, the qualitative and quantitative composition of the microflora depending on the various methods of fixing of the catheter and the duration of its use.

MATERIALS AND METHODS: 76 patients from 2 to 18 years old with prolonged epidural or peripheral anesthesia were included in an comparative, prospective, randomized, single-center study. Patients were divided into the groups according to the method of catheter fixation - adhesive sticker (AS), adhesive sticker and antimicrobial coating Desitol B (AS+D) and tunneling (T). Determination of microbial contamination of catheters was carried out using classical bacteriological studies.

RESULTS: None of the 76 patients had signs of a local or systemic infection. The difference in the frequency of colonization between the AS and T groups was statistically significant: 2 (1, n = 54) = 5.5381 (p = 0.018), between the AS and AS+D groups it was not significant. The relative risk of colonization of the skin of the catheter with adhesive fixation was 2.14 times higher than with catheter tunneling: RR = 2.14, p = 0.05 (95% CI 1.04.49). In the AS+D group, colonization of both the skin and the inner part of the catheter was observed significantly earlier than in the T group: skin part: U = 5.5; Ucr = 8 (p = 0.02); inner part: U = 5.5; Ucr = 6 (p = 0.04). The growth of Staphylococcus epidermidis (48.3%) and Staphylococcus aureus (20.7%) was fixed mainly when positive results of microbiological culture takes place.

CONCLUSIONS: Tunneling is the preferred method of fixation of the catheter when the postoperative pain relief period is more than 3 days.
Lysosomal storage diseases. Sphingolipidoses — sphingomyelin lipidosis, or Niemann–Pick disease, Wolman disease
Authors: Gorbunova Victoria N. , Buchinskaia Natalia V.
Published: November 2022

The epidemiology, clinical biochemical and molecular genetic characteristics of glycosphingolipidoses with impaired metabolism and excessive accumulation in parenchymal organs, bone and brain not only of sphingolipids, but also free cholesterol are presented. First of all, it is sphingomyelin lipidosis, or NiemannPick disease, a clinically polymorphic and genetically heterogeneous group of rare monogenic diseases. Types A and B, which differ in onset and severity, are allelic diseases and are caused by the presence of recessive mutations in the lysosomal acid sphingomyelinase (SMPD1) gene. Type A is a classic acute neuronopathy, which starts in 85% of cases before 6 months, death occurs before the age of 3 years. The cause of the disease is mutations with premature termination of translation or severe impairment of the catalytic activity of the enzyme. In type B, missense mutations are more common. This is a chronic visceral form, in which neurological symptoms are usually absent, and patients survive into adolescence. Juvenile and adult forms of chronic neuronopathy type C are genetically heterogeneous. In 95% of cases they are caused by mutations in the NPC1 gene (type C1) and in 5% in the NPC2 gene (type C2). The products of these genes are transmembrane proteins responsible for the transport of cholesterol and other lipids. Cholesterol ester storage disease, or Wolman disease, is caused by hereditary deficiency of lysosomal acid lipase A. The possibility of early diagnosis of these diseases based on neonatal screening is discussed in order to increase the effectiveness of their prevention and treatment. The importance of experimental models for studying the molecular basis of the pathogenesis of these severe hereditary diseases and developing various therapeutic approaches, such as bone marrow transplantation, enzyme replacement therapy, and substrate-reducing therapy, is emphasized. A clinical example of NiemannPick disease type C is presented.
Clinical and functional features of chronic pyelonephritis in children with connective tissue dysplasia
Authors: Ivanova Irina I. , Koval Natalia Yu.
Published: November 2022

BACKGROUND: There is information in the literature about the effect of connective tissue dysplasia (СTD) on the course of many somatic diseases. The role of СTD in the development of chronic pyelonephritis (СhPN) is presented differently to different authors, which is why it became necessary to conduct this study.

AIM: The aim of the work is to evaluate the effect of СTD on the course and manifestations of chronic secondary pyelonephritis in children.

MATERIALS AND METHODS: 142 children from 6 to 17 years old with СhPN were examined. They were divided into 2 groups: the 1st group included 108 children with manifestations of СTD, including 41 people with СTD of the 3rd degree and 67 people with СTD of the 2nd degree; group 2 34 patients without СTD. The groups were comparable in gender and age. The examination was carried out according to the standards for patients with ChPN. Signs of СTD were evaluated by the method of T.I. Kadurina.

RESULTS: Obstructive and mixed variants of СhPN are typical for children with СTD. In most patients, the disease manifested at 12 years of life; at school age the first signs of the disease occurred mainly in children without СTD with dysmetabolic disorders. Relapses of СhPN in children with СTD occurred 1.5 times more often during the year and 2,1 times more often during 5 years of follow-up. Patients with СTD are characterized by a wider range of pathogens, anemia, a high incidence of structural abnormalities and urodynamic disorders, a tendency to form foci of nephrosclerosis. The need for surgical treatment in the presence of СTD increases in patients with СhPN by 4.6 times, including in repeated and radical operations. In children with grade 3 СTD, all these signs are more represented.

CONCLUSIONS: СTD affects the course and manifestations of СhPN in children, creating an unfavorable background. It seems promising to study the role of СTD in the occurrence of anemia in children with СhPN.
Urinary biomarkers in children with kidney diseases taking into account obesity
Authors: Nastausheva Tatiana L. , Chan Anna V. , Kulakova Elena N. , Volosovets Galina G. , Chichuga Ekaterina M. , Chubarov Timofey V. , Gurovich Olga V. , Grebennikova Irina V.
Published: November 2022

BACKGROUND: Overweight and obesity in children are one of the most serious problems of the modern world. There are mane publications devoted to kidney injury in patients with obesity. This injury in developed imperceptibly, without clinical symptoms. Probably the diagnostics of kidney injury in children with obesity may be improved by studying new urinary markers: KIM-1, NGAL, IL-18, 2-mg.

AIM: Aim of our study was the comparative analysis of urinary markers of tubular kidney injury (KIM-1, NGAL, IL-18, 2-mg) in children with obesity and kidney diseases.

MATERIALS AND METHODS: We have been studied 78 children aged 715 years: 40 children with different kidney diseases and 38 patients with obesity and kidney diseases. The results of the study were presented as markers concentration in urine and as relation to creatinine (normalized indicators).

RESULTS: In children with obesity and kidney diseases the level of KIM-1 was more high in comparison with the children without obesity. The concentration of other markers (NGAL, IL-18, 2-mg) did not differ in children of two groups. The same results were received when analyzing normalized indicators. It was appeared significant correlation between body mass of patients and NGAL of urine in both groups.

CONCLUSIONS: Investigation of urinary KIM-1 have significance for diagnostics of tubular kidney injury in children with obesity on the background of kidney diseases. Established significant correlation NGAL with body mass can testify about it is diagnostic significance for obesity regardless of kidney diseases.
Chronic obstructive lung diseases as a risk factor for severe COVID-19 (review)
Authors: Kulikov Valery D. , Sukhovskaya Olga A. , Smirnova Maria A. , Kuzubova Nataly A. , Titova Olga N.
Published: November 2022

The review presents meta-analyses and original studies data of severe outcomes of COVID-19 infection in patients with chronic obstructive pulmonary disease.

The main risk factors for the severe course of COVID-19 in many studies have been identified as follows: age over 65 years, chronic lung diseases, systemic arterial hypertension, cardiovascular diseases, diabetes mellitus, immunosuppression, chronic kidney and liver diseases. It was shown that patients with concomitant respiratory diseases were 4.2 times more likely to have a severe course of COVID-19 (OR 4.21; 95% CI 2.96.0), especially in patients with chronic obstructive pulmonary disease (OR 5.8, 95% CI 3.98.5). Patients with bronchial asthma also more often received mechanical ventilation (OR 1.58; 95% CI 1.022.44; p = 0.04), treatment in intensive care units (OR 1.58; 95% CI 1.092.29; p = 0.02), had longer hospital stays (OR 1.30; 95% CI 1.091.55; р 0.003) and higher mortality (OR 1.53; 95 % CI 1.012.33; p = 0.04) compared with COVID-19 patients without asthma or other chronic obstructive pulmonary diseases. Another factor contributing to severe outcomes of COVID-19 is tobacco use, which increases the risk of severe disease, hospitalization and poor outcomes.

Patients with chronic obstructive pulmonary diseases, especially smokers, were more likely to have a severe COVID-19 and adverse outcomes of this disease, which must be taken into account when prescribing treatment for coronavirus infection.
Pleuropulmonary blastoma: case report in a child 8 years old
Authors: Zaripova Yuliya R. , Muss Elena A. , Arsentev Vadim G.
Published: November 2022

Pleuropulmonary blastoma is a very rare primary fetal tumor of the lung and pleura in young children and is associated with a mutation in the DICER1 gene. Based on the histological picture, three types of this tumor are distinguished: cystic (type I), solid cystic (II), solid (type III). Treatment is surgical followed by polychemotherapy. The prognosis is unfavorable.
The authors bring to the attention of colleagues a description of a clinical case of pleuropulmonary blastoma in an 8-year-old child, diagnosed against the background of an acute respiratory viral infection. He fell ill acutely with a rise in temperature and an unproductive cough. The condition was regarded as a course of an acute respiratory viral infection, symptomatic therapy was carried out. After 8 days from the onset of respiratory viral infection, there is a sharp deterioration in the condition in the form of shortness of breath, refusal to eat and drink, and weakness. The child is hospitalized in a Central District Hospital, differential diagnosis with pneumonia is carried out. According to the examination (plain radiograph and CT scan of the chest), a large volumetric formation with even contours is visualized in the right lung. The patient is transferred to a specialized hospital in St. Petersburg. After an MRI of the chest organs with contrast, taking a biopsy material and performing a histological examination, the patient was diagnosed with a tumor of the right lung pleuropulmonary blastoma type II.
This clinical case of a rare malignant tumor in an 8-year-old child with congenital heart disease and cerebral palsy may demonstrate a severe variant of systemic connective tissue dysplasia and gene mutation.
Efferent therapy in pregnant women with the threat of very early premature birth with premature effusion of amniotic fluid. Two clinical observations
Authors: Vetrov Vladimir V. , Ivanov Dmitry O. , Reznik Vitaly A. , Romanova Larisa A. , Melashenko Tatiana V. , Kurdynko Lyudmila V. , Vyugov Mikhail A.
Published: November 2022

It is known from the literature that premature amniotic fluid expulsion in 22 weeks 27 weeks 6 days gestation is very dangerous, as it is accompanied by high morbidity and mortality in newborn infants.
Clinical observation. This article presents the results of observing two women with premature amniotic fluid expulsion at 22 and 24 weeks gestation, respectively. In the first case, the woman was immediately admitted to the perinatal center; in the second observation, she was admitted after 3.5 weeks of treatment at another institution. In both cases, pregnant women had manifestations of oligo and endotoxemia, a protective inflammatory response in the mother-placental-fetal system (more pronounced in the second observation) against a background of urogenital infection. In the course of complex treatment, the patients underwent detoxification, of efferent therapy in the form of repeated consecutive sessions of plasmapheresis, hemosorption (one operation each), external photomodification of blood with ultraviolet, laser beams with prolongation of pregnancy by 10 and 8 weeks. The deliveries in both cases were operative with live babies with body weight of 1600 g and 1840 g, respectively. In the first case the infant did not need intensive care, was breastfed, in the second observation the newborn received active respiratory support for 9 days, in the dynamics his condition normalized. No septic complications in mothers and fetuses were observed.
The concluding efferent therapy in course of therapy were effected by prolongating of pregnancy with of good the results for mothers and them of fetus.
PENGEMBANGAN PERANGKAT PEMBELAJARAN MATEMATIKA DENGAN PENDEKATAN SAINTIFIK UNTUK MENINGKATKAN PENALARAN SISWA PADA MATERI PELUANG DI SMA KELAS XII
Authors: Zulaicha Yusma Ria , Muksar Makbul , As'ari Abdur Rahman
Published: November 2022

Penelitian ini dimaksudkan untuk mengembangkan perangkat pembelajaran matematika berbasis pendekatan saintifik untuk meningkatkan penalaran siswa pada materi peluang di SMA kelas XII yang valid, praktis, dan efektif. Model pengembangan yang digunakan dalam penelitian ini adalah model Dick and Carey. Perangkat pembelajaran yang dikembangkan berupa RPP dan LKS. RPP dan LKS disusun dengan mengacu pada pendekatan saintifik yang memuat 5M (mengamati, menanya, mengumpulkan informasi, menalar, mengomunikasikan). LKS yang disusun juga memuat langkah penalaran model Polya yaitu: 1) pengamatan terhadap suatu permasalahan, 2) perumusan dugaan dari permasalahan tersebut, 3) generalisasi, dan 4) verifikasi dugaan menggunakan permasalahan baru. Dari penelitian ini telah dihasilkan perangkat pembelajaran yang valid, praktis, dan efektif.Keywords: pendekatan saintifik, penalaran model Polya, model Dick and Carey, peluang
Lesson study: Improving the quality of learning through on flipped classroom learning model
Authors: Sugiarni Rani , Septian Ari , Inayah Sarah
Published: November 2022

This research purpose is to improve the quality of learning through the learning model of flipping the classroom on the subject of mathematics. This research is an export research by applying lesson study which consists of three intentions, namely planning , Do, and See. The subjects of this study were students of the Mathematics Education Study Program who took the Kapita Selekta Mathematics course. Research data collection instruments consisted of observation sheets, tests, and questionnaires. During the lecture process, observations were made of student activities both online and offline (face to face). To see the cognitive abilities given by test students and to see students' responses to the planning and implementation of a questionnaire The quality of learning is seen to increase from the online and offline activities of students and lecturer activities in class that encourage the activeness of the average value and classical absorption, which experiences improvement. Likewise, most of the students' responses were positive to the planning and implementation of learning taking place with the student learning model turned centered on class.
Penalaran analogis siswa dalam menyelesaikan masalah geometri ditinjau dari perbedaan gender
Authors: Ni'mah Zaidatun , Lukito Agung , Rahadjeng Budi
Published: November 2022

Penalaran analogis merupakan kemampuan seseorang dalam memetakan relasi pengetahuan saat ini dengan pengetahuan sebelumnya yang telah dipelajari. Penelitian ini bertujuan untuk mendeskripsikan penalaran analogis siswa laki-laki maskulin dan siswa perempuan feminin dalam memecahkan masalah geometri. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan kualitatif dengan jenis penelitian deskriptif. Hasil penilitian menunjukkan bahwa penalaran analogis siswa dengan gender laki-laki maskulin lebih baik daripada siswa dengan gender perempuan feminin. Siswa bergender laki-laki maskulin mampu menggunakan tahapan penalaran analogis dengan baik. Sedangkan siswa bergender perempuan feminin sedikit mengalami hambatan pada tahap mapping sehingga pada tahap applying subjek tidak mampu mendeskripsikan kesamaan atau analogi yang terkandung.
Pengaruh peer tutoring pada kecemasan matematika siswa sekolah menengah pertama
Authors: Fitriyah Afif Lailatil , Putri Ayu Fitri S. , Putra Miftakhul Ilmi Suwignya , Rofiki Imam , Abdullah Abdul Halim
Published: November 2022

Tujuan penelitian ini adalah untuk mendeskripsikan pengaruh tutor sebaya (peer tutoring) pada tingkat kecemasan matematika siswa. Sebuah posttest pretest dengan desain kelompok kontrol digunakan di Sekolah Menengah Pertama Negeri 5 Kota Mojokerto. Sebanyak 120 siswa di kelas 7 dan 8 berpartisipasi dalam penelitian ini, yang 60 perempuan dan 60 laki-laki. Siswa secara acak ditugaskan dan didistribusikan secara merata oleh kelompok kontrol (30 siswa) dan kelompok eksperimen (90 siswa). Data kuantitatif diperoleh dengan Skala Kecemasan Matematika yang telah dikembangkan. Informasi kualitatif dikumpulkan selama sepuluh sesi pembelajaran yang diadakan guru matematika dengan siswa. Dua faktor utama dianalisis dengan menggunakan informasi kuantitatif dan kualitatif: kecemasan belajar matematika serta kecemasan evaluasi matematika. Hasil dianalisis berdasarkan jenis kelamin dan jenis kelas. Peningkatan yang signifikan secara statistik dilaporkan untuk peserta didik laki-laki dan perempuan dalam kelompok eksperimen. Tidak ada perbedaan yang signifikan secara statistik dilaporkan untuk peserta didik dalam kelompok kontrol dalam hal apapun. Kesimpulan utama adalah bahwa peer tutor sangat bermanfaat untuk mengurangi kecemasan matematika siswa sekolah menengah, terlepas dari jenis kelamin atau jenis kelas peserta didik.
Contextual-based student worksheets designed to facilitate mathematics representation ability
Authors: Fitriya Haya Okta , Permatasari Dian
Published: November 2022

Representation is one of the objectives of learning mathematics, but the representation ability is still low. Thus, the purpose of this study was to develop a contextual-based Student Worksheet on similarity and congruence material to facilitate students' mathematical representation skills. This research was Research and Development. The research used the PPE development model developed by Richey and Klein with three stages of development: planning, production, and evaluation. The results showed that the contextual-based student worksheet on similarity and congruence material to facilitate students' mathematical representation skills was declared valid based on the expert validator's assessment with an average validity value of 0.81 and included in the high criteria.
Bibliometric analysis of learning mathematics studies from Indonesian authors
Authors: Supriyadi Edi , Dahlan Jarnawi Afgani , Dasari Dadan , Darhim Darhim , Sugiarni Rani
Published: November 2022

The concept of learning mathematics in schools has evolved to mean learning to participate in mathematical practices. In the 20th century, math education research developed, but each key issue and approach offers many questions. For the purpose of this inquiry, the Bibliometrics Analysis was carried out. When performing research on bibliographic material and carrying out citation analysis of each article published in scientific journals and other types of scientific literature, researchers could find it beneficial to use bibliometric analysis. This is a quantitative descriptive research. Researchers want to investigate the evolution of mathematics learning research outcomes in Indonesia, the distribution pattern of publications based on research affiliations, research themes, and scientific journals in Scopus. This study presents findings that are exploratory in nature from research on mathematics education in Indonesia. This study investigates the central body of scientific work in the subject of mathematics learning with the goal of providing information to educators, lecturers, and institutions of higher education about the current state of research trends in the field of mathematics learning. The data indicate that there has been less study conducted on mathematical education during the past two years. At the present time, the Universitas Pendidikan Indonesia is the association with the most significant influence. When it comes to publications, the Journal of Physics: The Conference Series has more mathematics learning research articles than any other Scopus-indexed journal.
Resiliensi matematis calon guru matematika dalam pembelajaran berbasis masalah
Authors: Yohanes Barep , Darmawan Puguh
Published: November 2022

Penelitian ini merupakan penelitian kualitatif deskripsi dengan tujuan untuk mengetahui aspek resiliensi matematis yang muncul dalam setiap tahapan Pembelajaran Berbasis Masalah (PBL). Penelitian dilakukan pada mahasiswa calon guru matematika Universitas PGRI Banyuwangi yang mengalami pembelajaran PBL. Hasil penelitian diperoleh dari 5 langkah PBL yaitu Orientasi pada masalah , Mengorganisasi untuk belajar , Membimbing penyelidikan individual maupun kelompok , Mengembangkan dan menyajikan hasil , dan Menganalisa dan mengevaluasi proses pemecahan masalah. Terdapat 6 aspek resiliensi yaitu tekun, adaptif, kreatif, motivasi diri, rasa ingin tahu, dan kontrol diri. Kesimpulan dari penelitian bahwa :(1) Langkah Orientasi pada masalah terdapat aspek motivasi; (2) Langkah mengorganisasi untuk belajar tedapat aspek kontrol diri dan adaptif; (3) Langkah membimbing penyelidikan individu maupun kelompok terdapat asek adaptif, tekun, kontrol diri, rasa ingn tahu, motivasi diri, dan kreatif; (4) Langkah mengembangkan dan menyajikan hasil terdapat aspek kontrol diri, rasa ingin tahu, motivasi diri, dan adaptif; (5) Langkah menganalisa dan mengevaluasi proses pemecahan masalah terdapat aspek tekun, adaptif, rasa ingin tahu, motivasi diri, dan kontrol diri.
Las competencias digitales y el desarrollo del proyecto de investigación en estudiantes de posgrado
Authors: Lucio Ponce Pilar Amparo
Published: December 2022

El acelerado avance de la tecnología exige que para un mejor manejo se deben dominar competencias digitales, las cuales permitan acceder mejor a la información que se encuentra en las redes en redes u online, Se formuló como objetivo de estudio determinar la relación entre las competencias digitales y el desarrollo del proyecto de investigación en estudiantes de posgrado. la metodología fue de enfoque cuantitativo con diseño correlacional, el cual se aplicó a una muestra de 100 estudiantes de posgrado de la Universidad Nacional Mayor de San Marcos, a quienes se les aplicó un cuestionario y rúbrica para medir sus niveles de logro. Los resultados permitieron encontrar una correlación de 0.591 entre las variables. Se concluyó que, existe relación entre las competencias digitales y el desarrollo del proyecto de investigación en estudiantes de posgrado.
An Update on the Current Management of Hepatitis B Virus in Special Populations
Authors: Chen Phillip , Han Steven-Huy
Published: December 2022

Hepatitis B (HBV) in special populations within this article is considered as acute on chronic liver failure due to HBV, coinfection with Hepatitis C (HCV), Hepatitis D (HDV), or Human Immunodeficiency Virus (HIV), and HBV infection in patients who are in immunosuppressive states due to specific therapies and liver transplant recipients. Patients within these special populations are at higher risk of liver-related complications such as fibrosis, accelerated cirrhosis, acute on chronic liver failure, and/or development of hepatocellular carcinoma (HCC). Given their respective complex pathophysiology, specific treatment approaches are required for each population. With the introduction of effective antiviral HBV therapies over the past decade and the respective treatment options for the special population diseases, patient outcomes have seen improvement. With the advent of HCV direct antivirals, treatment of HBV-HCV coinfection has been more successful and consistently shown high rates of sustained virologic response. Treatment of HBV-HDV coinfection remains primarily as interferon-based, though new promising therapies have shown greater improvement in viral suppression. HBV-HIV coinfection has also shown promising results given overlapping mechanisms for treatment and specific regimens should be chosen to decrease risk of resistance. HBV reactivation in patients undergoing immunosuppressive therapies have been reported and guidelines recommend close monitoring and in certain cases, HBV antiviral therapy prophylaxis. With the effective HBV therapies, the perception of HBV as a contraindication for liver transplant has been diminishing and prolonged graft survival with effective antiviral therapies have shown promising outcomes.
Efectos del biocarbón obtenido a partir de residuos agrícolas de uva en la generación de biogás
Authors: Diaz Vento Ingrind , Ancco Midwar , Peña Davila Godofredo , Ancco-Loza Rodolfo , Davila Del-Carpio Gonzalo , Jiménez Pacheco Hugo Guillermo
Published: November 2022

La industria vitivinícola produce gran cantidad de residuos cada año, residuos que por lo general no son manejados adecuadamente y se convierten por ello en un riesgo ambiental y sanitario. De otra parte, la producción de energía limpia, como el biogás a partir de estiércol vacuno, se ha convertido en un recurso energético importante. El objetivo de este estudio fue evaluar el biocarbón obtenido por torrefacción de residuos agrícolas de uva en la producción y calidad de biogás producido por digestión anaerobia de estiércol vacuno. El estudio se realizó en el área experimental del fundo La Católica, ubicado en Majes, Arequipa, Perú. Se empleó un diseño factorial múltiple compuesto por nueve tratamientos para producir biocarbón, en el cual los parámetros operativos fueron la temperatura y el tiempo de torrefacción; y parámetros de respuesta fueron el rendimiento másico de residuos de uva, rendimiento y calidad del biogás. Los resultados indican que la temperatura y el tiempo de torrefacción influyen significativamente en la producción de biocarbón, y los valores ideales son 40 min y 263.00°C. Además, el biocarbón reduce eficientemente el contenido de CO2 y H2S hasta 22% y 0.78 ppm respectivamente, del biogás. No obstante, no se observó ningún impacto en los rendimientos de biogás y metano. El aprovechamiento de residuos para producir biocarbón y mejorar la calidad del biogás puede ser replicado en cualquier lugar donde se desarrolle la industria vitivinícola.
Estimación de biomasa y carga animal en humedales ribereños utilizando ortofotografías multiespectrales adquiridas con microsensores transportados en vehículos aéreos no tripulados “Drone”
Authors: Puelles Condori Blanca Nélida , Cárdenas Rodríguez Jim , Estrada Zuñiga Andrés Corsino
Published: November 2022

El estudio se realizó en los humedales ribereños de San Pedro y San Pablo adyacentes al río Vilcanota en la provincia de Canchis, Cusco, en el sur del Perú. El objetivo fue estimar la producción de biomasa aérea y la capacidad de carga animal de estos humedales a partir del análisis de muestras adquiridas en campo y ortofotografías de índice de Vegetación de Diferencia Normalizada (NDVI). Las imágenes se adquirieron con una cámara multiespectral Parrot Sequoia, transportado por un Drone Matrice 100 DJI y procesadas en el software Pix4D y ArcGIS 10.6. EL estudio identificó 5 clases de uso de suelo: humedal, agricultura, urbanización, salinera y agua. La producción de biomasa estimada con datos de campo fue 2,359.46 kg/ha y 2,885.78 kg/ha, mientras que la estimación de biomasa con ortofotografías NDVI fue de 2,321.71 kg/ha y 3,048.72 Kg/ha para los humedales de San Pablo y San Pedro respectivamente. La capacidad de carga animal estimada a partir de datos de campo fue de 0.48 UV/ha/año y 4.79 UO/ha/año en el humedal de San Pablo y 0.59 UV/ha/año y 5.86 UO/ha/año en el humedal de San Pedro, esta misma variable estimada a partir de ortofotografías NDVI para el humedal de San Pablo fue de 0.47 UV/Ha/año y 4.71 UO/ha/año y para el humedal de San Pedro se obtuvo 0.62 UV/ha/año y 6.19 UO/ha/año de carga animal. Las estimaciones realizadas para capacidad de carga muestran diferencias del 1.87% para vacunos, 2.13 % para ovinos.
Aceite de Metohuayo (Caryodendron orinocense Karst) Obtenido por Prensado Hidráulico y Expeller: Análisis de Rendimiento y Características Físico-química
Authors: Delgado-Soriano Víctor , Espinoza Yessy , Torre Rubén , Encina-Zelada Christian R.
Published: November 2022

El objetivo principal de la investigación fue obtener aceite de metohuayo mediante prensado hidráulico versus expeller (a 50, 70 y 90 °C). Se evaluó el rendimiento de extracción y se caracterizaron las propiedades físico-químicas del aceite. La semilla destacó por su alto contenido de grasa (40,5 %) y color L* (29,3), a* (9,7) y b* (18,4). El prensado en expeller a 50 °C presentó los valores máximos de rendimiento y recuperación de aceite con 39,2% y 96,9%, respectivamente. La misma tendencia se pudo apreciar en los parámetros de calidad analizados: índice de acidez, índice de peróxido, índice de p-anisidina y coeficientes K232 y K268, donde los valores evidenciaron un incremento con las temperaturas del prensado en expeller. Los resultados mostraron que el conjunto de características físico-químicas permiten el reconocimiento y diferenciación de los aceites obtenidos en relación con la temperatura; y mediante Análisis de Componentes Principales (PCA) se pudo inferir que este tipo de datos sirve como herramienta de reconocimiento preliminar para distinguir el efecto de los métodos de extracción. Finalmente, los aceites obtenidos por ambos métodos, aunque presentaron diferencias estadísticas (p<0,05) en sus características físico-químicas, mostraron valores dentro de los rangos establecidos por el Codex Alimentarius. Estos resultados proponen la extracción de aceite mediante prensado en expeller como un proceso tecnológico que mejora, en comparación con el prensado hidráulico, el aprovechamiento del aceite de semillas de metohuayo producido en los Andes tropicales, conforme a las nuevas exigencias del mercado.
Identificación y caracterización de daños causados por artrópodos en Dioscorea, en Montes de María, Colombia
Authors: Pérez Cantero Shirley Patricia , Luna Castellanos Lily Lorena , Díaz Cabadiaz Abelardo Tulio , Pérez Cantero Kevin Luis
Published: November 2022

Desde los inicios de la agricultura, los cultivos han sido propensos al ataque de diversas plagas que reducen los rendimientos y la productividad. Por tanto, se hace indispensable conocer la biología y el comportamiento de los artrópodos plagas para establecer planes de manejo integrado que permitan reducir los daños y maximizar la producción de alimentos para satisfacer la demanda alimenticia de una población en aumento. En la subregión de Montes de María en Colombia, durante los últimos años se han reportados daños por plagas de las cuales se desconoce su identidad taxonómica, incidencia, y capacidad de daño. En este sentido, Agrosavia C.I Turipaná desarrolló una investigación con el fin de identificar y caracterizar los daños causados por artrópodos plagas en Dioscorea alata y D. rotundata en los municipios de Carmen de Bolívar (Bolívar) y Chalán (Sucre) durante la etapa vegetativa. El monitoreo de los artrópodos se realizó con frecuencia quincenal y en cada muestreo fueron registrados los daños y tipos de artrópodos encontrados en hojas y tallos de la planta. Los resultados evidenciaron que en ambas localidades y especies de ñame las hojas de la planta fueron afectadas por cinco artrópodos plagas del orden Coleóptera (familia Chrysomelidae) y tres Hemípteros de la familia Cicadellidae y Miridae. Los daños encontrados en el tallo estuvieron asociados a Xystus sp. Las evaluaciones de artrópodos plagas en ñame constituyen una estrategia para la prevención de riesgos sanitarios en la especie, lo que contribuye a la producción ecoeficiente de tubérculos.
Impacto de las variedades obonuco andina y San Isidro en el departamento de Nariño, Colombia
Authors: Cadena Pastrana Alvaro Mauricio , Riascos Delgado Marcela Elizabeth , Castro Jiménez Andrea , Delgado Sánchez Alcira Maria , Zambrano Moreno Gregorio , Vásquez Urriago Angela Rocio
Published: November 2022

Esta investigación estimó la adopción e impacto de las variedades de arveja Obonuco Andina y Obonuco San Isidro en el departamento de Nariño, durante el período 2017 - 2019. Se realizaron entrevistas semiestructuradas, historias de vida y grupos focales con actores clave; estimación económica del beneficio adicional para los productores por el uso de la tecnología y la estimación de impactos socioambientales con el método Ambitec – Agro. Entre los factores de adopción de estas variedades se encuentran su alta productividad y rendimiento frente a otros materiales disponibles en la región, la apertura de mercados a variedades de grano verde y baja oxidación. Como factores indirectos se observan la generación de empleo rural por la diversificación de roles productivos e involucramiento de la mujer y su especialización en las actividades de tutorado. Se estima, durante el período evaluado, un beneficio adicional anual promedio para los productores, por el uso de la tecnología, de 49.079.940.000 COP, a partir de 12.900 hectáreas anuales sembradas. Respecto a los impactos socioambientales se destacan: mejora en equidad de género y etaria, creación y cualificación del empleo, generación de ingresos, incremento del capital social y mejora en la seguridad alimentaria. Como impactos negativos se estima: mayor uso de insumos agrícolas; pérdida en la calidad del aíre, del suelo y el agua; disminución en la conservación de la biodiversidad; que sugieren la necesidad de investigaciones orientadas a mejorar la sostenibilidad y resiliencia del sistema productivo con su entorno natural.
Derecho consuetudinario andino en el sistema jurídico peruano. Un abordaje desde la formación universitaria
Authors: Puma Llanqui Javier Santos , Incacutipa Limachi Duverly Joao , Incacutipa Limachi Cleida , Calsina Ponce Wilber Cesar , Zevallos Yana Julio Fitzgerald , Esteves Villanueva Ángela Rosario
Published: November 2022

El sistema jurídico de los Estados se construye sobre la base de los usos y costumbres de la población; no obstante, en el sistema jurídico peruano se impone la tradición greco-romana, que conduce a la clandestinidad al derecho de costumbre. El objetivo de esta investigación es evidenciar la naturaleza de la formación académica del derecho en las universidades públicas y privadas del Perú mediante el análisis de los currículos de estudios. Se utilizó como método la revisión documental de información disponible en la página web de la Superintendencia Nacional de Educación Superior Universitaria - SUNEDU. De acuerdo con los resultados, en el Perú, de las Facultades que forman profesionales en derecho 29.8% corresponde a universidades públicas y 70.2% a privadas. De ellas, 70.24% establecen que la materia de Derecho romano y Derecho anglosajón son de carácter obligatorio, mientras que 71.4% no consideran cursos referidos al pluralismo jurídico o derecho consuetudinario. Por lo tanto, la formación profesional en derecho y por ende, la administración de justicia no va acorde con el contexto. En los últimos años se han desencadenado graves crisis y conflictos sociales con trasfondos de inequidades culturales. Por lo cual se debe considerar el derecho consuetudinario andino como materia relevante en la formación universitaria peruana de los futuros abogados que impartirán justicia en una población que se autoidentifica como indígena.
Influencia de la temperatura y concentración de sólidos solubles en el comportamiento reológico de la pulpa de cocona
Authors: Leandro Laguna Caleb , Díaz Shuña José Daniel , Reátegui Paredes Sussy , Bazán-Colque Ronel Joel
Published: November 2022

La cocona es una deliciosa fruta que crece en la Amazonía peruana ubicada al este de los Andes. El estudio de las propiedades físicas de la pulpa, incluyendo su reología, es necesario para optimizar las diferentes etapas y procesos para su industrialización. El objetivo de este trabajo fue evaluar la influencia de la temperatura (Tp) y la concentración de sólidos solubles (Cp) en el comportamiento reológico de la pulpa de cocona. Se variaron Tp (30 – 60 °C) y Cp (10 – 25 °Brix) según un diseño factorial 4 × 4 con tres repeticiones. Los frutos maduros mostraron las siguientes características biométricas de peso (210,2 g), diámetro axial (85,47 mm) y ecuatorial (65,56 mm) antes de ser despulpados. Las características fisicoquímicas de la pulpa fueron: sólidos solubles (6,51 °Brix), pH (3,62), acidez (1,42 g de ácido cítrico/100 g de pulpa) y humedad (86,57%). La concentración de la pulpa se realizó con la adición de azúcar blanca comercial, como agente conservante. Las mediciones reológicas fueron evaluadas en un viscosímetro rotacional de Brookfield. Los parámetros reológicos ayudaron a calcular el índice de consistencia (K: 48,63 a 111,14 Pa·sn) e índice de flujo (n: 0,271 a 0,353) a través del modelo matemático de Ley de la Potencia con fines predictivos (R2 > 0,9), bajo el dominio estudiado. Las pulpas evaluadas revelaron un comportamiento no newtoniano de tipo pseudoplástico y la energía de activación varió de 11,55 a 14,81 kJ/mol. Estos resultados pueden ser utilizados para futuros trabajos, parámetros de calidad.
Proceso de la administración, innovación e internacionalización de empresas artesanales textiles de la región Puno
Authors: Aliaga-Melo Grisell , Tudela-Mamani Juan Walter
Published: November 2022

El propósito de la investigación es determinar la medida de relación entre el proceso de la administración y la innovación con la internacionalización de las empresas exportadoras textiles de la Región Puno, de manera específica demostrar la medida de correlación entre el proceso de la administración y la innovación con la internacionalización, y cuantificar el nivel de cumplimiento de los indicadores de internacionalización. La metodología fue un diseño no experimental, enfoque cuantitativo, método deductivo, de alcance descriptivo-correlacional y explicativo, con una muestra de 27 empresas, la técnica fue la encuesta y el instrumento el cuestionario. Existe una correlación positiva media entre el proceso de la administración con la internacionalización, reflejado en el coeficiente de correlación de Spearman cuyo valor resultó en 0.564 [p<0.01]. Existe una correlación positiva débil entre la innovación con la internacionalización, reflejado en el coeficiente de correlación de Spearman que resultó en 0.451 [p<0.05]. Se calculó el nivel de cumplimiento de los indicadores de internacionalización a través de la elaboración de un índice de internacionalización (IdI) mediante el método de análisis de componentes principales (ACP), evidenciándose una calificación “deficiente” para las dimensiones características del entorno y desarrollo exportador, “regular” para las dimensiones factores internos y recursos y capacidades y “bueno” para las dimensiones características del emprendedor y características del sector.
Impacto del storytelling para la comunicación organizacional interna en universidades
Authors: Espinel Pazmiño Dayana Alexandra
Published: December 2022

La exposición de las organizaciones en la web 2.0 ha derivado en que los públicos o clientes estén sometidos a una sobresaturación informativa, lo cual determinó que las entidades generen nuevas estrategias que permitan captar la atención y formen una interrelación directa con el prosumer. La presente investigación utiliza metodologías cualitativa y cuantitativa para evaluar cómo la estrategia del storytelling puede influir en el sentido de pertenencia de los públicos hacia una institución. Se concluye que la estrategia permite el empoderamiento con la institución, logrando así que hablen positivamente de la organización ya que las historias apelan a las emociones de los receptores. La narrativa, a más de impactar, logra que los públicos acepten cambios en su vida cotidiana.
Short-time Work, Redundancies, and Changing Work Environment: The Hospitality Sector During COVID-19
Authors: Rydell Alexis , Storman Elin
Published: November 2022

This article focuses on the restructurings that took place within the hospitality sector during the economic downturn caused by the pandemic. The aim of this article is to examine how STW (short-time work) schemes and redundancies affected the psychosocial work environment. The data material consists primarily of 36 interviews with employees and managers from three hotels in Sweden that implemented STW schemes, where some employees were also made redundant. The results show that during the rather long period of government restrictions, radical shifts in hotel occupancy rates, and implemented STW schemes, the work environment changed in terms of employees’ perceptions of job (in)security; workload and work extension; time and financial structures; and workplace relations. Further, the results illustrate how hotel employees’ perceptions of the psychosocial work environment shifted over the course of the pandemic.
Economia moçambicana e educação brasileira: duas faces de uma mesma medalha
Authors: Bussotti Luca , Siqueira Antonio Marcos de Oliveira , Araújo Wagner dos Reis Marques , Andrade Roberta Ferreira Coelho de , Andrade Aldair Oliveira de
Published: November 2022

Este número da revista REVES consta de duas partes bastante distintas. Por um lado, uma massiva presença de autores e temáticas relativas a Moçambique, por outro textos referentes à realidade brasileira, principalmente centrados no âmbito educacional. Esta presença de dois países, duas realidades e dois continentes resulta em materiais de extremo interesse quer para quem queira olhar para a educação no Brasil, quer para quem pretenda dar uma espreitada aos estudos africanos, com ênfase especial para Moçambique.
Práticas populares de enxertia e os saberes botânicos envolvidos: possibilidades da integração de saberes no ensino de ciências e Biologia
Authors: Mendes Neves Nataly , Klepka Verônica
Published: November 2022

A enxertia constitui no processo de conexão de tecidos vegetais de duas plantas, indivíduos diferentes que passam a se desenvolver como se fossem um só. É considerada uma técnica antiga e está relacionada aos povos tradicionais. Considerando a dificuldade de ensino aprendizagem na disciplina de botânica, conhecer os diferentes modos de se praticar a enxertia é um importante mecanismo de aproximação dos saberes botânicos exercidos cotidianamente ao ensino de biologia. Assim, este trabalho objetivou investigar as práticas de enxertia desenvolvidas por comunidades populares locais e os saberes botânicos envolvidos de modo a apontar as possibilidades de integração da temática ao ensino de Ciências e Biologia. Para isso, foram entrevistados três homens que desenvolviam técnicas de enxertia em plantas. A pesquisa foi conduzida mediante entrevista semiestruturada e os discursos provenientes das entrevistas foram submetidos à análise qualitativa. Percebemos que as técnicas de enxertia possuem um grande potencial para o estudo e compreensão dos processos fisiológicos, anatômicos e reprodutivos das plantas, possibilitando integrar os saberes populares aos científicos na sala de aula tornando o ensino de botânica significativo e contextualizado tanto para a o educador e o educando.
Apontamentos sobre inclusão social e o programa Bolsa Família: desigualdades sociais e educacionais em produções acadêmicas
Authors: Freitas Melo Estela Caroline , Morato Fernandes Natalia Aparecida
Published: November 2022

Nos estudos sobre inclusão social, a temática inclusão educacional tem ganhado evidência, com diversificados recortes e perspectivas teórico-metodológicas. Neste artigo objetiva-se identificar os tipos de abordagem realizados em pesquisas sobre inclusão social e escolar de crianças e adolescentes oriundas de famílias beneficiárias do Programa Bolsa Família (PBF). Adotou-se a metodologia da pesquisa bibliográfica, identificando trabalhos publicados em bases de busca multidisciplinar. Foram identificadas 1.634 produções e selecionados 49 trabalhos para revisão. Observou-se que a maioria dos trabalhos sobre inclusão escolar é relacionado a pessoas com deficiências e, quando se trata da condicionalidade de educação do PBF, abordam principalmente sobre matrícula, frequência e evasão escolar. Não se evidencia o caráter qualitativo do acesso e exigência da escolarização formal, assim como seus impactos na possibilidade de acesso à espaços sociais a partir da inclusão escolar. Os estudos apontam, em sua maioria, para a importância do programa no enfrentamento da vulnerabilidade socioeconômica.
Palavras-chave: Inclusão Social; Educação; Programa Bolsa Família.