bluuebunny/crossref_metadata_2025 huggingface dataset:
Metodología para el estudio de la actividad en el área de la Educación Física. Resultados del análisis
Authors: Goicoechea Gaona Maria Victoria
Published: August 2022

En el proyecto de investigación denominado “Análisis del trabajo docente: Las consignas de tareas en el área de la Educación Física” (B-209 CRUB-UNCo), hemos trabajado en colaboración con profesores de Didáctica la Educación Física y con estudiantes en prácticas de la carrera Profesorado en Educación Física. El objetivo es recabar información que nos permita contribuir en la formación docente a través de la observación del desempeño (logros y dificultades) de los estudiantes practicantes. Por ello a partir de la observación de las clases, hemos estudiado la relación entre el trabajo efectivo y el trabajo prescrito (la planificación). Seguimos la línea de investigación denominada Análisis de las consignas de tareas (Riestra, 2008) que, articulada con la perspectiva del Análisis de Trabajo Docente (Bronckart, 2007, Bronckart, Jobert & Friedrich, 2001), permite estudiar las consignas que los practicantes elaboran para sus clases. En esta ocasión, compartiremos una breve muestra de la metodología de investigación implementada y los resultados del análisis de una clase conformada por juegos complejos, lo que dio lugar a consignas muy extensas que tuvieron que ser reformuladas.
Uncovering teacher's situation amidst the pandemic: Teacher's coping mechanisms, initiatives, constraints, and challenges encountered
Authors: CARATIQUIT Kevın , CARATIQUIT Lovely Jean
Published: August 2022

This paper aimed to discover the coping, initiatives, constraints, and challenges public secondary school teachers encounter in the new normal education. The central question of this paper lies in "What are the adapting and coping mechanisms of teachers and students in the distance learning modality amidst the pandemic?". This paper used the qualitative research design and employed a phenomenological approach to investigate secondary public-school teachers' coping mechanisms and initiatives in the new normal education. This paper focused on twelve public secondary school teachers in Cagayan, Philippines. The research's findings are: (1) Most teachers encountered substantial challenges due to a lack of resources, student supervision, and duties. (2) Most teachers were constrained by the advent of the digital era. (3) Public-school teachers cope with their students' needs by employing effective initiatives and teaching strategies. (4) Despite their weariness and stress, teachers report positive outcomes such as tremendous enthusiasm and building connections with the school community. Meanwhile, the schools' adaptation to distant learning should be guided and encouraged by the following policies and concepts:(1) Access to technology for students. (2) Regular monitoring and feedback (3) Providing curriculum and instruction of the highest quality. Through this paper, teachers may benefit from adopting various coping techniques and activities for the new normal education.
Two centrifugal flotation techniques for counting gastrointestinal parasite eggs and oocysts in alpaca faeces
Authors: Maria Pyziel-Serafin Anna , Raboszuk Adrianna , Klich Daniel , Orłowska Blanka , Sierociuk Dagmara , Anusz Krzysztof
Published: August 2022

Introduction

The alpaca (Vicugna pacos) is a camelid native to South America, but the species has wide distribution outside its natural habitat and is found in various countries on other continents, Poland being one in Europe. Parasitic infections affect the productivity and health of alpacas. The aim of the study was to estimate the parasite loads in alpacas kept in Poland with the use of two direct centrifugal flotation methods.

Material and Methods

A total of 248 faecal samples from alpacas from 12 provinces in Poland were examined for parasite eggs and oocysts with a modified Willis method (WM), and 59 samples were examined simultaneously with WM and a modified Stoll method (SM).

Results

The WM detected eggs of Trichostrongylidae, and the SM oocysts of Eimeria spp. as the respective most prevalent parasite material. The eggs of Nematodirus sp., Nematodirus battus, Aonchotheca sp., and Trichuris sp. were detected in lower numbers in both methods. Oocysts of E. macusaniensis and eggs of Moniezia sp. were the rarest in WM, the former also being so in SM; eggs of Moniezia were absent in SM. The prevalence of Eimeria spp. was significantly higher as detected by SM than as detected by WM; however, the prevalence of eggs of Nematodirus spp. and trichostrongyles was significantly higher as detected by WM than as detected by SM.

Conclusion

WM is more accurate at detecting heavy gastro-intestinal nematode eggs, including those of trichostrongyles and Nematodirus, whereas SM is more accurate at detecting smaller coccidia from the genus Eimeria.
Clinical Characteristics and Microbiological Profiles of Community-Acquired Intra-Abdominal Infections
Authors: Lugito Nata Pratama Hardjo , Cucunawangsih Cucunawangsih , Kurniawan Andree , Tjiang Margaret Merlyn
Published: August 2022

Background: Intra-abdominal infections (IAIs) have different aspects to consider. One important aspectis the microbiological analyses, especially in the era of broad spread of resistant microorganisms. The studywas designed to describe the clinical characteristics and microbiological profiles of community acquired IAIs. Method: An observational study was performed on medical records of 12 months period (January toDecember 2013) in a General Hospital, Karawaci, Tangerang. Adult patients undergoing surgery for IAIs with positive microbiological culture and identification of microorganisms were included. Data collected were clinical characteristics and microbiological profiles and wereanalyzed statisticallyusing the SPSS version 17. Results: In 12 months period of study, 17 patients of IAIs with a total of 17 intra peritoneal specimens were collected. A total of six microorganisms were cultured. All the IAIs were monomicrobial, with aerobicmicroorganism dominantly Gram-negative bacilli. The dominant microorganism was Escherichia coli (E.coli), found in 58.8% of IAIs. The most common site was appendix (41.2%), and none from small intestine. Thesusceptibility test found that piperacillin tazobactam, tigecycline, meropenem and amikacin were the most activeantimicrobial against E. coli. Multi-drug resistant (MDR) E. coli in this study was 40%. The MDR E. coli had66.6% resistance to levofloxacin and ciprofloxacin, 66.6% susceptibility to ceftriaxone and ceftazidime, and100.0% susceptibility to amikacin. Conclusion: The most common site of community-acquired IAIs was appendix (41.2%). E. coli is still adominant microorganism with the MDR E. coli proportion of 40%.Keywords: intra-abdominal infections, clinical characteristics, microbiological profiles
ENHANCED RECOVERY (FAST-TRACK) PROGRAM IN ELECTIVE ARTHROPLASTY OF WEIGHT-BEARING JOINTS
Authors:   Tsivyan Novosibirsk Research Institute of Traumatology and Orthopaedics, Novosibirsk, Russian Federation, AGEENKO A.M. , NIKIFOROV D.S. , NIKIFOROVA T.A. , LEBEDEVA M.N.
Published: August 2022

Objective: To evaluate the effect of feeding with a whey protein plus carbohydrate drink on metabolic parameters, general state of the patient and recovery time after knee and hip arthroplasty. Methods: The results of the perioperative period of 60 patients with osteoarthritis (OA) of the hip and knee were evaluated between March and July 2021. All patients underwent hip or knee arthroplasty under spinal anaesthesia. In addition, patients of the study group received the ProvideXtra® Drink 2 hours before surgery. Otherwise, the management of patients in the perioperative period was the standard. Mobilisation and verticalisation of patients were carried out after achieving physical fitness, resolution of the spinal block and haemodynamic stability on the day of surgery or the next day. Results: In all patients after 4 hours, increased glucose levels were recorded in both groups, statistically significant in the control group – 7.15±0.94 versus 7.88±1.18 mmol/l (p=0.02). The decrease in haemoglobin level had no difference in the study groups and before discharge was 100±16 g/l versus 101±18 g/l (p=0.86). The difference in total protein level before discharge was in favour of the study group, 63.1±6.1 versus 59.2±5.9 g/l (p=0.17). Verticalisation timing in the study group was as follows: 10 patients were verticalised on the day of surgery, and the remaining 20 patients – were on the next day. In the control group – 8 patients were verticalised on the day of surgery and 22 – on the next day. In the control group, 2 cases of postoperative nausea requiring correction were observed. Conclusion: The modern surgical approaches include the maximal preservation of natural feeding, based on the Enhanced Recovery after Surgery (ERAS®) concept. However, guidelines for choosing a particular diet on the day of surgery remain to be finally established. Using ready-made carbohydrate-protein mixtures is a convenient solution that delivers the required amount of energy and protein. Therefore, the effect of the mixture on protein metabolism in the postoperative period remains to be elucidated through further studies. Keywords: Accelerated rehabilitation, nutrient mixture, hip arthroplasty, knee arthroplasty.
IMPLEMENTATION STUDY IN PREVENTION AND CONTROL OF DRUG-RESISTANT TUBERCULOSIS DURING THE COVID-19 PANDEMIC IN DUSHANBE
Authors:   City Center for Protection of Population from Tuberculosis, Dushanbe, Republic of Tajikistan, TILLOEVA Z.KH.
Published: August 2022

Objective: To assess an implementation study (IS) aimed at improving the epidemiological surveillance of tuberculosis (TB) and drug-resistant TB (DRTB) in Dushanbe during the COVID-19 pandemic. Methods: IS assessment was carried out according to the RE-AIM framework and WHO recommendations for reporting on IS. To assess the effectiveness of the action taken, official statistics and reports from the City Center for Protection of Population from Tuberculosis were used. Results: IS was a qualitative study. The study was supported by the WHO Special Program for Research and Training in Tropical Diseases (TDR). A multidisciplinary team led by the Dushanbe City Health Department has undertaken the following measures: introduction of a system of weekly epidemiological surveillance for TB at the primary health care (PHC) level from the second week of 2021; involvement of students of basic and advanced field epidemiology programs (FETP) in the assessment of the TB epidemiological surveillance system; tracking of registered patients with laboratory confirmation of TB; application of data from the quarterly reports in tracking the diagnostic trends and evaluation of the effectiveness of DR-TB treatment. All materials received were documented and used to train TB doctors and PHC workers. Only 66% of TB doctors were involved in capacity building in Dushanbe PHC: 24.4% of PHC workers were trained in the basics of TB diagnosis and treatment. Stabilization of TB and DR-TB rate was achieved in 2021 compared to 2020 (morbidity growth rates were 2.7% and 11.9%, respectively); effectiveness of treatment of TB with preserved sensitivity of M. tuberculosis (MBT) to anti-TB drugs in the 2020 cohort increased, but efficacy of DR-TB treatment in the 2019 cohort decreased. Conclusion: IS has identified major barriers to achieving the TB elimination goals. Although the data indicate stabilization of TB and DR-TB incidence rates and increased effectiveness of drug-sensitive TB treatment in Dushanbe, further monitoring and achievement of sustainable results are required. Keywords: COVID-19, tuberculosis, drug resistance, implementation study, TDR.
VARIANT ANATOMY OF THE BRACHIAL PLEXUS
Authors:   Department of Neurosurgery, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation, SUFIANOV A.A. , SAGDIEV R.KH. ,   Federal Center of Neurosurgery, Tyumen, Russian Federation, SORIN V.S. ,   Department of Neurosurgery, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation, PITEROV V.A. ,   Department of Neurosurgery, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
Published: August 2022

The brachial plexus (BP) is a complex of nerve structures arising from the ventral rami of the lower four cervical (C5-C8) and upper thoracic (Th1) spinal nerves. The number of described variants of BP has been increasing every decade. This paper analyzes the world literature data on the anatomy of the BP. The sources of information used included: PubMed, Web of Science, Scopus, MEDLINE, EMBASE, Biosis Citation Index, SciELO Citation Index, RSCI data bases. It was noted that the anatomy of the BP is variable, its 'classic' variant of the structure occurs in less than 50% of cases. In other cases, there were significant differences in structure and course from the 'classic' version. Keywords: Brachial plexus, trunk, bundle, variant anatomy, 'classic' scheme.
GIANT FRONTOETHMOIDAL OSTEOMAS: A RATIONAL APPROACH TO THE SURGICAL REMOVAL AND THE IMMEDIATE RECONSTRUCTION OF THE ANTERIOR WALL OF THE FRONTAL SINUS
Authors:   Department of ENT Diseases, Institute of Postgraduate Education in Health Sphere of the Republic of Tajikistan, Dushanbe, Republic of Tajikistan, IKROMOV M.K.
Published: August 2022

Objective: To develop an appropriate method for removing giant frontoethmoidal osteomas and the immediate reconstruction of the anterior wall of the frontal sinus. Methods: Between 2016 and 2020, five patients (4 men and 1 woman) were admitted with an osteoma of the paranasal sinuses, of which three (2 men and 1 woman) were diagnosed with giant osteomas of the frontal and ethmoid region. The patients were aged 28 to 49 years. Routine clinical examinations were carried out, including collecting patient history and a CT scan of the paranasal sinuses. The giant osteomas were removed by minimally invasive transnasal endoscopic surgery with a combined anterior wall approach to the frontal sinus. The tumour size was reduced by excision with a surgical drill before removal to minimise the defect in the frontal sinus's anterior wall. The procedure was completed with the immediate reconstruction of the anterior wall of the frontal sinus using titanium nickelide mesh. Results: The length of hospital stay was 10 days. Wound healing occurred by primary intention, and the sutures were removed on the 8th day. Followup periods were between 1 month and 1 year. Follow-up examinations were carried out 1 week, 1, 6 and 12 months after hospital discharge. On the follow-up CT scans performed a year after the operation, the implanted titanium nickelide mesh was stable, the aeration of the frontal sinus was normal, and satisfactory cosmetic outcomes were reported. Conclusion: CT is the gold standard in determining the size of the osteoma, its spread, and the state of the walls of the paranasal sinuses. A combined surgical approach and debulking of the giant osteomas using a surgical drill with the immediate reconstruction of the anterior wall of the frontal sinus by titanium nickelide mesh produce favourable outcomes. Keywords: Osteoma, benign tumour, frontal sinus, surgical treatment, frontal recess, titanium nickelide mesh.
THE LATISSIMUS DORSI MUSCLE FLAP TRANSFER IN SURGICAL CORRECTION OF POST-TRAUMATIC UPPER LIMB DYSFUNCTION
Authors:   Department of Surgical Diseases № 2 named after Academician N.U. Usmanov, Avicenna Tajik State Medical University, Dushanbe, Republic of Tajikistan, MALIKOV M.KH. , DAVLATOV A.A. ,   Department of Surgical Diseases № 2 named after Academician N.U. Usmanov, Avicenna Tajik State Medical University, Dushanbe, Republic of Tajikistan, DZHONONOV D.D. ,   Department of Reconstructive and Plastic Microsurgery, Republican Scientific Center for Cardiovascular Surgery, Dushanbe, Republic of Tajikistan, MAKHMADKULOVA N.A. ,   Department of Topographic Anatomy and Operative Surgery, Avicenna Tajik State Medical University, Dushanbe, Republic of Tajikistan, KARIM-ZADE G.D. ,   Department of Surgical Diseases № 2 named after Academician N.U. Usmanov, Avicenna Tajik State Medical University, Dushanbe, Republic of Tajikistan, ODINAEV B.A. ,   Department of Surgical Diseases № 2 named after Academician N.U. Usmanov, Avicenna Tajik State Medical University, Dushanbe, Republic of Tajikistan
Published: August 2022

Objective: To improve the outcomes of surgical correction of upper limb dysfunction (ULD) using the latissimus dorsi flap (LDF). Methods: ULD occurred in 76 patients with Volkmann's ischemic contracture (VIC), post-traumatic soft tissue defects, and brachial plexitis in 57, 11, and 8 cases, respectively. Out of 57 patients with VIC, in 30 cases, a skin defect was observed along with severe degenerative changes in soft tissues, neurovascular bundles (NVBs) and tendons. Post-traumatic forearm defects (n=11) in 5 cases were accompanied by damage to the NVBs and tendons. In brachial plexitis, isolated injury to the musculocutaneous nerve occurred in 6 patients, and a combination of nerve lesions with radial nerve palsy – in 2 patients. Results: Transposition of LDF to the biceps brachii for the treatment of brachial plexitis, free muscle transplantation for the treatment of VIC and forearm soft tissue defects were performed in 8, 57, and 11 cases, respectively. Active forearm flexion after the muscle flap transposition was noted after 4 weeks. In contrast, after graft transplantation in VIC, the grip function restoration began after 6 months and improved within 1 year and beyond. Conclusion: Using the LDF in surgical correction of post-traumatic ULD allowed restoring the lost functions of the crushing grip and forearm flexion. For the forearm, only free flap transplantation with a relatively long period of limb function recovery is possible. In contrast, the traspositioned LDF to the biceps allows achieving the desired functional outcomes in the shortest possible time. Keywords: Upper limb, latissimus dorsi flap, Volkmann's contracture, soft-tissue defect, brachial plexitis.
TERATOMA OF THE PANCREAS
Authors:   Republican Scientific Oncology Center, Dushanbe, Republic of Tajikistan, MURODOV A.I.
Published: August 2022

Pancreatic teratoma is an infrequent entity. Only a few cases have been reported in the world literature. The primary treatment for mature teratoma is radical surgery. The article presents a case of pancreatic teratoma in a 3-year-old patient. Teratoma was diagnosed preoperatively with an intravenous contrast-enhanced CT scan, which revealed that the common hepatic and splenic arteries enter the tumour walls. Intraoperative revision confirmed the CT data, and corporocaudal pancreatectomy with celiac axis resection (modified Appleby procedure) was performed to achieve R0 resection. In this case, the blood supply to the liver and stomach was derived from the superior mesenteric artery via the pancreaticoduodenal arcades and then through the gastroduodenal artery. The postoperative period was uneventful. The patient was discharged on the eighth day in satisfactory condition. Keywords: Teratoma, mature teratoma, pancreas, corporocaudal resection, celiac trunk.
Nekrozlaşdırıcı fassiit (epidemiologiyası, etiopatogenezi, klinikası, diaqnostikası, müalicəsi)
Authors:   Azərbaycan Tibb Universiteti, Əliyev Saday , Bayramov Nuru ,   Azərbaycan Tibb Universiteti
Published: August 2022

The monograph is devoted to necrotizing fasciitis, one of the most severe forms of disseminated acute surgical infection, and its special clinical variant - Fournier's gangrene. Epidemiology, etiopathogenesis, clinical presentation, diagnosis and treatment of the disease are described in the book based on modern literary sources and many years of personal experience of the authors. The role of intravascular bacterial invasion (bacteremia) and inflammatory mediators in the pathogenesis of the disease is highlighted in accordance with the evolution of modern sepsis theory. Fournier's gangrene was assessed as a critical situations in surgery, prognostic criteria for the disease and principles of treatment were analyzed. The monograph is intended for family physicians and emergency physicians, surgeons, coloproctologists, urologists, dermatologists and intensivists.
Continuity Of Care Of Mrs. D During Preconception, Term I, II And III Of Pregnancy, Labour, Postpartum, Newborn And Family Planning Services In Pmb Kurao Padang
Authors: Yulizawati Yulizawati , Safaringga Miranie , Pive Enosentris Iney
Published: August 2022

Maternal Mortality Rate is the ratio of maternal mortality during pregnancy, childbirth and postpartum caused by pregnancy, childbirth, and postpartum in every 100,000 live births. The maternal mortality rate (MMR) in the world in 2015 was estimated at 216 per 100,000 live births or an estimated 303,000 deaths. The target of the 2030 Sustainable Development Goals (SDGs) is to reduce the Maternal Mortality Rate (MMR) below 70 per 100,000live births. The RPJMN target in 2019 is 306 per 100,000 live births (Ministry of Health, 2019). Meanwhile, the IMR in the world is 10,000,000 people per year. IMR in Indonesia reaches 22 per 1,000 live births. The purpose ofmidwifery continuity of care is to provide continuous care starting from the preconception period, pregnancy, childbirth, postpartum and family planning. The research method is a description, the form of case study research,the subject of pregnant women Mrs. D is 26 years old at PMB with Kurao. The technique of collecting data is by interviewing and observing (observation) and using data analysis techniques in the field. The instruments used in this study were the format of midwifery care, interviewguidelines, examination tools and the MCH Handbook. The results showed that the care given to Mrs. D is 26 years old starting from the preconception period, pregnancy, childbirth, postpartum, and newborn and family planning is going well, the mother and baby are in good health. In conclusion, midwifery continuity of care provided with care starting from pregnancy, childbirth, postpartum, and newborns can provide benefits to mothersand babies in the process. Continuity of care midwifery care can optimize the detection of high-risk maternal and neonatal.
Diseño Metodológico de Análisis Espacial para la Conservación del Agua en la Cuenca Alta del Río Cauca
Authors: Mera Margoth
Published: August 2022

El presente diseño metodológico de análisis espacial se realizó a partir de la herramienta de los Sistemas de Información Geográfica (SIG), que busca resolver el problema de integrar o combinar componentes de variables bióticos, físicos y socioculturales que demuestren una correlación hacia la conservación del agua en una estructura ecológica. Este trabajo se desarrolló en el nacimiento del río Cauca que se localiza al sur occidente de Colombia, en el departamento del Cauca, en los municipios de Puracé, Sotará y Popayán. La cuenca está conformada por tres tipos de biomas de bosque húmedo (subandino, alto andino y páramo), además de ser poblada por comunidades ancestrales, comunidades campesinas y rurales y territorios urbanizados. Los resultados de este análisis espacial se presenta a en un formato raster o grillas de un mismo tamaño de la cuenca alta, donde se evidencia que por la combinación de 16 variables y 3 componentes se obtiene 21 combinaciones para la conservación de agua, que son esenciales para producción, almacenamiento y regulación del agua en la cuenca alta del río Cauca, teniendo presente la importancia de incluir temas socioculturales donde las prácticas agrícolas y culturales propician en la transformación del espacio geográfico.
Protección de embarazadas en radiología oral
Authors: Wilches-Visbal Jorge Homero , Castillo-Pedraza Midian Clara , Llinás-Ariza Alfredo Rafael
Published: August 2022

Las radiografías dentales son necesarias para diagnosticar y hacer seguimiento de múltiples enfermedades orales. Sin embargo, debido a los conocidos efectos estocásticos de los rayos X dentales es imprescindible garantizar protección a los pacientes. Especial atención merecen las mujeres embarazadas por cuanto el feto es altamente vulnerable a la radiación, sobre todo en las primeras semanas. Algunas recomendaciones de protección radiológica en esta población son: El uso de radiografías ha sido justificado; realizar el estudio 10 días después del inicio de la menstruación; informar del procedimiento a la embarazada a fin de evitar el miedo; optimizar el procedimiento (haz colimado, alto kVp, control manual de disparo, calibración regular etc.) y usar delantal plomado solo si las condiciones de optimización son insuficientes.
PENGARUH KUALITAS LAYANAN, KUALITAS PRODUK TERHADAP KEPUASAN PELANGGAN DALAM MEMBENTUK LOYALITAS PELANGGAN
Authors: Budiarno Budiarno , Udayana Ida Bagus Nyoman , Lukitaningsih Ambar
Published: August 2022

AbstractCompanies that implement high quality services will meet customer expectations in a competitive and economical way. Improving service quality can be done by improving operational processes which include identifying problems quickly and systematically, establishing effective and reliable service performance indicators, and measuring customer satisfaction and other performance results. The purpose of this study was to determine the effect of service quality, product quality on customer satisfaction in shaping customer loyalty (a case study on customers at Indomaret Point Colombo Yogyakarta). This research is a quantitative study. The sample in this study are consumers who shop at Idomaret Point Colombo Yogyakarta. Furthermore, the data collection technique was carried out through the use of a questionnaire/questionnaire through several statement items. The data analysis process is carried out by testing data prerequisites and testing hypotheses through path analysis (path analysis), processing is carried out using the SPSS vs.21 application. The results of this study indicate that service quality has a negative and insignificant effect on customer satisfaction, product quality has a positive and significant effect on customer satisfaction and customer satisfaction has a positive and significant effect on customer loyalty. Keywords: customer loyalty; product quality; satisfaction; service quality; AbstrakPerusahaan yang menerapkan layanan berkualitas tinggi akan memenuhi harapan pelanggan dengan cara yang kompetitif dan ekonomis. Peningkatan kualitas layanan dapat dilakukan dengan memperbaiki proses operasional yang meliputi identifikasi masalah secara cepat dan sistematis, penetapan indikator kinerja layanan yang efektif dan andal, serta pengukuran kepuasan pelanggan dan hasil kinerja lainnya. Tujuan penelitian ini adalah untuk mengetahui Pengaruh Kualitas Layanan, Kualitas Produk terhadap Kepuasan Pelanggan dalam Membetuk Loyalitas Pelanggan (Studi Kasus pada Pelanggan Indomaret Point Colombo Yogyakarta) Penelitian ini merupakan penelitian kuantitatif. Sampel dalam penelitian ini adalah konsumen yang berbelanja di Idomaret Point Colombo Yogyakarta. Selanjutnya teknik pengambilan data dilakukan melalui penggunaan kuesioner/angket melalui beberapa item pernyataan. Proses analisis data dilakukan dengan uji prasyarat data dan pengujian hipotesis melalui analisis regresi berganda, pengolahan dilakukan dengan menggunakan aplikasi SPSS vs.21. Hasil dari penelitian ini menunjukan bahwa Kualitas Layanan berpengaruh negatif dan tidak signifikan terhadap Kepuasan Pelanggan,Kualitas Produk berpengaruh positif dan signifikan terhadap Kepuasan Pelanggan dan Kepuasan Pelanggan berpengaruh positif dan signifikan terhadap Loyalitas Pelanggan. Kata kunci: Kepuasan; loyalitas pelanggan; kualitas layanan; kualitas produk;
IMPLEMENTASI PAPAN PUZZLE PADA PEMBELAJARAN DENGAN MODEL PEMBELAJARAN MATING DALAM MENINGKATKAN PEMECAHAN MASALAH MATEMATIS SISWA
Authors: Rahmawati Puji , Slow Lilian , Budhiarti Yuli
Published: August 2022

This research combines the MATING (Mathematics-English) Learning Model and Puzzle Board Media. The purpose is to develop the MATING learning model by the implementation of puzzle board media in the increasing of students’ problem solving. It conducted in Public Elementary School 01 Semanget and 12 Entikong toward the third-grade student, on March to November. The type of this research is development research with test, observation, and interview in the data collecting techniques. The data analysis technic was analysis-descriptive. Based on the first observation result shows that problem solving competence of both of them is same, it is 25%. Merely there is one problem solving competence on their problem-solving test sheet. Then, researcher conducts the small group tryout in public elementary school 12 Entikong (20 students) and the result shows that there is development in problem-solving competence, it is 50%. It means that there are three steps of problem-solving on their problem-solving test sheet (at the third level). Next, researcher conducts the big group tryout in both of the schools and the result is there are four level of problem-solving on their test sheet (at the fourth level). Thus, there is the increasing is 75% of students’ problem-solving competence. In short, the problem-solving competence can be developed by the combination of MATING learning model and puzzle board media.
KEMAMPUAN REPRESENTASI MATEMATIS SISWA SMP DALAM MENYELESAIKAN SOAL SISTEM PERSAMAAN LINEAR DUA VARIABEL (SPLDV)
Authors: Muthianisa Humawida , Effendi Kiki Nia Sania
Published: August 2022

This study was aimed to determine the mathematical representation ability of students at the level of junior high school class IX. The subjects in this study were students of class IX B in one of the junior high schools in Klari District, Karawang Regency who were randomly selected with a total of 25 students. The method applied in this research is descriptive qualitative. The instrument in this research is by testing the ability of mathematical representation of the material of a two-variable linear equation system as many as 3 description questions. The data analysis technique used in the study consisted of data reduction, data presentation and conclusion drawing. The results of this study indicate that the mathematical representation ability of class IX B students at the school on the material of a two-variable linear equation system is in the low category.
RETRACTED: PENGARUH METODE PEMBELAJARAN DISCOVERY MENGGUNAKAN E-LEARNING TERHADAP KEMAMPUAN LITERASI MATEMATIS SISWA
Authors: Sugianto Hendry , Suyitno Amin , Asih Tri Sri Noor
Published: August 2022

Following a rigorous, carefully concerns and considered review of the article published in Jurnal Edukasi dan Sains Matematika (JES-MAT) to article entitled “PENGARUH METODE PEMBELAJARAN DISCOVERY MENGGUNAKAN E-LEARNING TERHADAP KEMAMPUAN LITERASI MATEMATIS SISWA” Vol 8, No 1, pp. 95-106, March 2022, DOI: https://doi.org/10.25134/jes-mat.v8i1.5594This paper has been found to be in violation of the Jurnal Edukasi dan Sains Matematika (JES-MAT) Publication principles and has been retracted.The article contained redundant material, the editor investigated and found that the paper published in JNPM (Jurnal Nasional Pendidikan Matematika), Vol. 6, No. 1, pp. 145-157, 2022, DOI : 10.33603/jnpm.v6i1.6264, URL: https://jurnal.ugj.ac.id/index.php/JNPM/article/view/6264 entitled "PENGARUH METODE PEMBELAJARAN DISCOVERY MENGGUNAKAN E-LEARNING TERHADAP KEMAMPUAN LITERASI MATEMATIS MTS ".The document and its content has been removed from Jurnal Edukasi dan Sains Matematika (JES-MAT), and reasonable effort should be made to remove all references to this article.
UTJECAJ ODLUKA I NAČELA EUROPSKOG SUDA ZA LJUDSKA PRAVA NA UREĐENJE INSTITUTA POSEBNIH DOKAZNIH RADNJI U UJEDINJENOJ KRALJEVINI S POSEBNIM NAGLASKOM NA PRESRETANJE KOMUNIKACIJA
Authors: Aljinović Nevena
Published: August 2022

In the United Kingdom, the regulatory mechanism for intercepting communications has undergone substantial changes in the last few decades. Until the European Court of Human Rights (ECtHR) judgment in the Malone case (1984), in which it found a violation of the right to protection of private and family life pursuant to Art. 8 of the European Convention for the Protection of Fundamental Rights and Freedoms (ECHR), the United Kingdom did not have a concise legislative framework governing the interception of communications. Legislative frameworks governing the subject matter have also been changed by the standards set by the practice of the ECtHR. The implementation of the ECHR into the British legal system has imposed higher privacy protection standards as guaranteed by Art. 8 ECHR, in an environment where the common law approach that “the police can do whatever they want as long as it is not prohibited by law” was no longer sustainable. The specific feature of the legislative regulation of special evidentiary actions in the United Kingdom is manifested, for some special evidentiary actions, through the absence of judicial control, at least in the phase of issuing and extending orders for their implementation. Today, the area in question is governed by a special Regulation of Investigatory Powers Act 2000 (RIPA), Investigatory Powers Act 2016 (IPA), and related Codes of Practice, however not by the Criminal Procedure Code, as is the case in the countries with a continental legal tradition. In this paper, the author analyses the legislative changes that preceded the enactment of the Regulation of Investigatory Powers Act 2000, as well as the new Investigatory Powers Act 2016 that be described as the biggest reform of British interception regulation, as it has, for the first time in the UK, incorporated a judicial element for the power to interception. In this context, the question arises as to whether recent legislative changes meet the standards as established by the ECtHR. Consequently, conclusions are presented concerning the revised concept of the subject matter.
Kehidupan sosial ekonomi pengrajin di Desa Tanjung Atap Kecamatan Batu tahun 2007-2018
Authors: Suryani Ika , Sair Alian , Syarifuddin S
Published: August 2022

Desa Tanjung Atap menjadi daerah sentral industri pengrajin di Kabupaten Ogan Ilir, sebab mayoritasnya berprofesi pengrajin. Keahlian ini didapatkan turun-temurun yang terus dilestarikan. Sehingga berpengaruh terhadap kehidupan sosial dan ekonominya yang dapat dilihat pada dinamika perkembangannya dalam sebelas tahun terakhir (2007-2018). Tujuan penelitian untuk mendeskripsikan keadaan sosial dan ekonomi pengrajin Desa Tanjung Atap Kecamatan Tanjung Batu, khususnya kerajinan alumunium dan anyaman tikar purun. Metode penelitian yang digunakan adalah penelitian sejarah. Awal mula peneliti mengumpulkan sumber yang berkaitan dengan topik yang diteliti, setelah terkumpul peneliti melakukan ktirik terhadap semua sumber yang sudah didapat, seperti narasumber yaitu pengrajin di Desa Tanjung Atap sebagai rujukannya. Kemudian peneliti melakukan analisis terhadap hasil yang didapatkan dari wawancara dengan narasumber. Selanjutnya hasil analisis tersebut peneliti uraikan dalam bentuk tulisan yang sistematis sehingga hasil dari penelitiannya dapat diuraikan bahwa kehidupan sosial pengrajin alumunium dan anyaman tikar purun memiliki relasi yang terjalin antara pengrajin dengan tengkulak dan pengrajin dengan masyarakat setempat. Kemudian aspek kehidupan ekonominya secara historis mengalami peningkatan terutama rentang waktu 2007 sampai 2018 terhadap penjualan kerajinan alumunium dan kerajinan anyaman tikar purun.
Dynamic Self-organization in an Open Reaction Network as a Fundamental Principle for the Emergence of Life
Authors: Mukouyama, Yoshiharu , Tanaka Kenya , Nakanishi Shuji , Nakato Yoshihiro
Published: August 2022

The emergence of life on Earth has attracted intense attention but remains unclear. A key problem is that the question of how living organisms can exhibit self-organizing ability that leads to highly ordered structures and active free independent behavior remains unanswered. This work reveals, by computer simulation and experiments, that a stationary state of an open reaction network (ORN) demonstrates such self-organizing ability. Reaction and diffusion processes in an ORN are irreversible and always forced toward equilibrium and, hence, necessarily reach a stationary state in which they have approached equilibrium to the largest extent possible and attained a full balance, if no oscillatory or dispersive behavior emerges. Thus, a stationary state is firmly stabilized by such reversible processes and kept stable against fluctuation; that is, it exhibits self-organizing ability. A non-equilibrium stationary state also has a property of approaching equilibrium and can evolve toward a high-efficiency ordered system through interaction with the surroundings. Moreover, a stationary state is a self-sustaining and self-organized state and can demonstrate active free independent behavior. Accordingly, a stationary state of an ORN can be regarded as a precursor of primitive life and dynamic self-organization in it provides a fundamental principle for the emergence of life.
Tidying up the conformational ensemble of a disordered peptide by computational prediction of spectroscopic fingerprints
Authors: Michaelis Monika , Cupellini Lorenzo , Mensch Carl , Perry Carole C. , Delle Piane Massimo , Colombi Ciacchi Lucio
Published: August 2022

In this work we demonstrate that oligopeptides lacking a clear propensity for ordered secondary-structure motifs are not randomly, but only conditionally disordered. This means that their conformational landscape, or phase-space, can be well represented by a basis-set of conformers including about 10 to 100 structures. The implications of this finding have profound consequences both for the interpretation of experimental electronic and vibrational spectral features of peptides in solution and for the theoretical prediction of these features using accurate and computationally expensive techniques. These concepts are elaborated for and applied to a dodecapeptide, whose Circular Dichroism, Infrared, Raman and Raman-Optical-Activity spectroscopic fingerprint is measured and theoretically predicted by means of enhanced-sampling Molecular Dynamics coupled with Quantum Mechanical calculations. The here-derived methods and conclusions are expected to fundamentally impact the rationalization of so-far elusive structure-function relationships for disordered peptides and proteins in biochemistry and biomaterials science.
Ab-Initio Energetics of Electrochemical Ion Insertion into Manganese Oxides
Authors: Carlson Evan Zoltan , Chueh William , Mefford J. Tyler , Bajdich Michal
Published: August 2022

The ion insertion redox chemistry of manganese oxides has diverse applications in energy storage, catalysis, and chemical separations. Unique properties derive from the assembly of Mn-O octahedra into polymorphic structures that can host protons and non-protonic cations in interstitial sites. Despite many experimental reports targeting specific applications, a comprehensive understanding of ion insertion in Mn oxides remains elusive. In this work, we use density functional theory to study the electrochemistry of AxMnO2 (where A = H+, Li+, Na+, K+, Mg2+, Ca2+, Zn2+ & Al3+) in aqueous and non-aqueous electrolytes. We develop an efficient computational scheme demonstrating that Hubbard-U correction has a greater impact on calculating accurate redox energetics than choice of exchange-correlation functional. Using PBE+U, we find that non-protonic cation insertion into MnO2 depends on the oxygen coordination environments inside a polymorph but that when H+ is present, the driving force to form hydroxyl bonds is generally stronger. Only three ion-polymorph pairs are thermodynamically stable within water’s voltage stability window (Na+ and K+ in 𝛼-MnO2, and Li+ in λ-MnO2), with all other aqueous ion insertion relying on metastability. Al3+ insertion into the 𝛿, R, and λ polymorphs may enable the full 2-electron redox of MnO2 at high voltage, but electrolytes must be designed to impede formation of insoluble precipitates and facilitate ion desolvation. We also show that water co-insertion stabilizes small ions in 𝛼-MnO2, while solvation energies and kinetic effects dictate water insertion in 𝛿-MnO2. Taken together, these findings rationalize experimental reports of mixed ion insertion mechanisms in aqueous batteries and highlight promising design strategies for safe, high energy density electrochemical energy storage.
Transport of water and oxygen in epoxy-based coatings
Authors: Zargar Hossein , Zarei Parham , Wong Dennis , Lam Catherine , Asselin Edouard
Published: August 2022

Epoxies are used in various industrial applications as corrosion barriers but quantitative time-dependent predictions of their ability to mitigate corrosion attack at the metal/coating interface remain elusive. Permeability data for water and oxygen through epoxy-based coatings are of particular interest because the coating’s barrier performance in humid environments is directly related to how quickly these reactants get to the metal/coating interface. There is, however, an absence of literature data to explain oxygen transport within coatings in the presence of condensed water and its associated plasticization effects. We show that water is a dominant player in the barrier performance of epoxy coatings because it blocks the transport of other permeants. Through analysis of the sorption isotherms and empirical permeation data, we determined adjustable parameters that explain water vapor plasticization effects in fusion bonded epoxy (FBE) at 65°C. At this temperature, evolution of cavity formation and break-up of water clusters result in high mobility of water molecules inside the epoxy network. We also modeled oxygen transport through FBE in wet-state conditions based on time lag measurements, and with reported literature data on vapor and gas sorption in epoxy. In a mixed gas/vapor system, condensed water in FBE blocks and/or significantly decreases gas permeation in the coating. If the service temperature is low (less than 40°C), water immobilizes the oxygen gas within microvoid regions in the glassy epoxy. Our experimental measurements, combined with Freeman’s theoretical model for upper bound limits, showed that this water-induced blocking mechanism is sufficient to suppress corrosion reactions on the underlying substrate material. At 65°C and above, the synergistic effect of coating plasticization by water molecules and dissolution of oxygen in a mobile water phase results in significant gaseous transport. We applied mathematical models based on proven sorption and transport models to FBE free-standing films and derived adjustable parameters to quantitatively explain this competitive permeation. Our O2 transport data show that, compared to the single-layer FBE, epoxy-based coatings with additional polyolefin layers can improve the barrier performance by deprivation of micropore channels for gas transport.
DeepWEST: Deep learning of kinetic models with the Weighted Ensemble Simulation Toolkit for enhanced sampling
Authors: Ojha Anupam , Thakur Saumya , Ahn Surl-Hee , Amaro Rommie
Published: August 2022

Recent advances in computational power and algorithms have made molecular dynamics (MD) simulations reach greater timescales. However, for observing conformational transitions associated with biomolecular processes, MD simulations still have limitations. Several enhanced sampling techniques seek to address this challenge, including the weighted ensemble (WE) method, which samples transition between metastable states using many weighted trajectories to estimate kinetic rate constants. However, initial sampling of the potential energy surface has a significant impact on the performance of WE, i.e., convergence and efficiency. We thereby introduce deep-learned kinetic modeling approaches that extract statistically relevant information from short MD trajectories to provide a well-sampled initial state distribution for WE simulation. This hybrid approach overcomes any statistical bias to the system as it runs short unbiased MD trajectories and identifies meaningful metastable states of the system. It is shown to provide a more refined free energy landscape closer to steady-state that could efficiently sample kinetic properties such as rate constants.
Charged small molecule binding to membranes in MD simulations evaluated against NMR experiments
Authors: Nencini Ricky , Ollila Samuli
Published: August 2022

Interactions of charged molecules with biomembranes regulate many of their biological activities, but their binding affinities to lipid bilayers are difficult to measure experimentally and model theoretically. Classical molecular dynamics (MD) simulations have the potential to capture the complex interactions determining how charged biomolecules interact with membranes, but systematic overbinding of sodium and calcium cations in standard MD simulations raises the question of how accurately force fields capture the interactions between lipid membranes and charged biomolecules. Here, we evaluate the binding of positively charged small molecules, etidocaine and tetraphenylphosphonium (TPP), to a POPC lipid bilayer using the changes in lipid headgroup order parameters. We observed that these molecules behave oppositely to calcium and sodium ions when binding to membranes: (i) their binding affinities are not overestimated by standard force field parameters, (ii) implicit inclusion of electronic polarizability increases their binding affinity, and (iii) they penetrate into the hydrophobic membrane core. Our results can be explained by distinct binding mechanisms of charged small molecules with hydrophobic moieties and monoatomic ions. The binding of the former is driven by hydrophobic effects, while the latter has direct electrostatic interactions with lipids. In addition to elucidating how different kinds of charged biomolecules bind to membranes, we deliver tools for further development of MD simulation parameters and methodology.
ARC-MOF: A Diverse Database of Metal-Organic Frameworks with DFT-Derived Partial Atomic Charges and Descriptors for Machine Learning
Authors: Burner Jake , Luo Jun , White Andrew , Mirmiran Adam , Kwon Ohmin , Boyd Peter G. , Maley Stephen , Gibaldi Marco , Simrod Scott , Ogden Victoria , Woo Tom K.
Published: August 2022

Metal-organic frameworks (MOFs) are a class of crystalline materials composed of metal nodes or clusters connected via semi-rigid organic linkers. Owing to their high surface area, porosity, and tunability, MOFs have received significant attention for numerous applications such as gas separation and storage. Atomistic simulations and data-driven methods (e.g., machine learning) have been successfully employed to screen large databases and successfully develop new experimentally synthesized and validated MOFs for CO2 capture. To enable data-driven materials discovery for any application, the first (and arguably most crucial) step is database curation. This work introduces the ab initio REPEAT charge MOF (ARC-MOF) database. This is a database of ~280,000 MOFs which have been either experimentally characterized or computationally generated, spanning all publicly available MOF databases. A key feature of ARC-MOF is that it contains DFT-derived electrostatic potential fitted partial atomic charges for each MOF. Additionally, ARC-MOF contains pre-computed descriptors for out-of-the-box machine learning applications. An in-depth analysis of the diversity of ARC-MOF with respect to the currently mapped design space of MOFs was performed – a critical, yet commonly overlooked aspect of previously reported MOF databases. Using this analysis, balanced subsets from ARC-MOF for various machine learning purposes have been identified. Other chemical and geometric diversity analyses are presented, with an analysis on the effect of charge assignment method on atomistic simulation of gas uptake in MOFs.