bluuebunny/crossref_metadata_2025 huggingface dataset:
Heterologous synthesis of N and M fragments of capsid protein VP2 of avian infectious bursal disease virus in yeast Pichia pastoris
Authors: Rumyantsev Andrey M. , Tsygankov Mikhail A. , Veretennikov Vladislav V. , Sambuk Elena V. , Padkina Marina V.
Published: May 2022

BACKGROUND: Infectious bursal disease is one of the most common and economically important viral diseases of birds. Vaccination is currently the most effective way to control IBD. Subunit vaccines contain only the immunogenic protein of the pathogen or its fragments, but do not contain other proteins, lipopolysaccharides, toxins, which avoids vaccination side effects.
AIM: The aim of the work was to obtain yeast Pichia pastoris strains that synthesize and secrete the fragments of major coat protein VP2 of the infectious bursal disease virus.
MATERIALS AND METHODS: The DNA sequences encoding the N and M fragments of VP2 protein, were cloned under the control of the AOX1 gene promoter and integrated into the genome of P. pastoris strains X-33 (mut+) and GS115 (his4).
RESULTS: The analysis of proteins secreted by the obtained strains revealed the presence of additional proteins with a molecular weights corresponding to the target proteins.
CONCLUSIONS: Thus, the obtained strains of P. pastoris producers of N and M fragments of VP2 protein can be used for antigen production to create a subunit vaccine against avian IBD.
MULTIFACTORIAL APPROACH TO THE DETERMINATION OF HEAT TRANSFER IN MULTILAYER SURFACES
Authors:   Kalashnikov Izhevsk State Technical University, Votkinsk branch, Votkinsk, Russia, DOMNINA KSENIIA , PIVARCIOVA ELENA ,   Technical University in Zvolen, Faculty of Technology, Zvolen, Slovakia, REPKO VALENTIN ,   Kalashnikov Izhevsk State Technical University, Votkinsk branch, Votkinsk, Russia
Published: May 2022

Development of the territories with specific climatic conditions requires the selection of effective materials. Multilayer composite materials are suitable for these purposes in road construction in the Arctic. The article presents a design scheme for a multilayer road surface, which is used to determine the collection of traffic loads. The method of solving the inverse Cauchy problem and the empirical formula to determine the value of the temperature arising from deformation at the contact point of the surface of a multilayer road surface and transport are determined. The experimental studies conducted were aimed to determine the heat transfer through a three-layer road surface made of structural foam concrete of the D1200 brand. The processing of experimental data on temperature values made it possible to derive the formula to determine the change in the layers’ temperature depending on their number.
RESEARCH AND DEVELOPMENT OF A SOFTWARE TOOL FOR PARAMETRIC MODELING OF ROBOTIZED WORKPLACES
Authors:   VSB - Technical University of Ostrava, Department of Robotics, Ostrava, Czech Republic, BOLESLAVSKY ADAM , MIHOLA MILAN ,   VSB - Technical University of Ostrava, Department of Robotics, Ostrava, Czech Republic, WIERBICA ROSTISLAV ,   VSB - Technical University of Ostrava, Department of Robotics, Ostrava, Czech Republic, BEM JAN ,   VSB - Technical University of Ostrava, Department of Robotics, Ostrava, Czech Republic, SPURNY TOMAS ,   VSB - Technical University of Ostrava, Department of Robotics, Ostrava, Czech Republic
Published: May 2022

Designing a robotic workplace is a time and knowledge intensive process. It requires systems engineers who specialise in the design of this type of workplace and have the appropriate know-how in this area. Due to the time-consuming nature and the small number of experts, a small number of solution options are often created, from which the most suitable one is subsequently developed. The aim of the development was to create a tool that would simplify the design of robotic workplaces. The result is a software tool integrated into the SolidWorks CAD system. The tool uses a database of models. The connection between the developed software tool and the database is realized through the API of the SolidWorks CAD system. Thanks to this tool, it is possible to simplify and speed up the work of workplace design. More variant solutions can be developed and overall better results can be achieved.
INCREASING THE ROBUSTNESS OF AN INVERSE STAMPING ALGORITHM
Authors:   University of West Bohemia in Pilsen, Faculty of Mechanical Engineering, Department of Machine Design, KASPAR JAROMIR , BERNARDIN PETR ,   University of West Bohemia in Pilsen, Faculty of Mechanical Engineering, Department of Machine Design, LASOVA VACLAVA ,   University of West Bohemia in Pilsen, Faculty of Mechanical Engineering, Department of Machine Design
Published: May 2022

Inverse stamping is a useful tool in engineering. It can be used to find the initial blank shape of stamped parts. It is also useful for quick and easy analysis of a forming process and its impact on the design of a component. Algorithms for inverse stamping are commonly available, but in some situations these algorithms can collapse or may provide confusing results. This article describes improvements to a newly designed inverse stamping algorithm which lead to an increase in its robustness.
Psychosocial stress and risk assessment during the COVID-19 pandemic: Some preliminary thoughts
Authors: Čabarkapa Milanko , Safiye Teodora , Gutić Medo
Published: May 2022

Human life and activities are associated with risk, as risk is inherent in all forms of human existence and action. Risk is regarded as a phenomenological variable considering how people perceive it, especially during a crisis they experience. This paper discusses the characteristics of human behavior in a crisis, with an emphasis on hazard perception and risk assessment, for the purpose of understanding people’s decisions and adaptation before, during, and after a crisis. The discussion focuses on the ongoing COVID-19 global pandemic.
The Role of Technology Information on Financial Literacy in Indonesia
Authors: Rizkan Muhammad , Hartarto Romi Bhakti , Supiandi Supiandi , Hou Chieh-Tse
Published: May 2022

Financial management literacy is a significant knowledge to assist individuals' financial condition. There are various factors influencing monetary management, including Information technology (IT). Thus, this study aims to investigate the role of IT affecting individual awareness of financial literacy in Indonesia with household characteristics as the controlling variable; the data are generated from the Indonesian Family Life Survey conducted in 2014. Probit and logit models signify that ITs and household characteristics positively and significantly affect financial literacy. In detail, handphones, televisions and newspapers, marital status, education level, and household income levels have a positive and significant influence on households' accessing financial knowledge. Furthermore, multinomial logit estimation used to compare three different levels of financial literacy (low, medium, and high), indicates that six out of nine variables significantly affect financial literacy at low level to high levels, whereas only four out of nine influence financial literacy from medium to a high level.
Pengaruh Penambahan Biopolimer Xanthan Gum untuk Mengurangi Konsumsi Energi pada Sistem Perpipaan
Authors: Mau Sealtial , Pada Crisyamor Daniel
Published: May 2022

Drag merupakan salah satu hambatan yang terjadi pada sistem transportasi fluida dimana hal ini merupakan hal yang menarik untuk dikaji. Pada penelitian ini fluida kerja yang digunakan untuk disirkulasikan adalah campuran air dan xanthan gum. Tujuannya adalah untuk mengetahui pengaruh penambahan xanthan gum terhadap penurunan tahanan gesek pada sistem perpipaan. Penambahan xanthan gum sebagai biopolimer termasuk dalam kategori kontrol aktif yang digunakan dalam kajian ini. Pada penelitian ini dirancang rangkaian sistem perpipaan secara horizontal dengan panjang pipa uji utama 0,8 m dengan diameter 0,015 m dan campuran fluida kerja yang divariasikan masing-masing 100 ppm, 300 ppm dan 500 ppm. Dari ketiga konsentrasi tersebut nilai tahanan gesek terendah pada fluida kerja dengan campuran 100 ppm pada kecepatan ± 1,5 m/s dengan nilai koefisien gesek sebesar 0,0053. Konsentrasi fluida kerja 300 ppm dan 500 ppm tidak memberikan keuntungan karena memiliki koefisien gesekan di atas air murni masing-masing yaitu 0,1578 dan 0,3276.
Analysis of complete blood count parameters pre and post transfusion of packed red blood: A meta-analytic study in a tertiary care hospital
Authors: Vaithy. K Anandraj , Sri Keerthika , Shanmugasamy  , S Sowmya
Published: May 2022

The clinical condition of anaemia is defined as reduction below normal limits of the total circulating red cell mass. It is measured by the reduction in packed red cell volume or reduction in haemoglobin concentration of blood. Patients with hemoglobin below 6 gm/dl usually require transfusion therapy. In stabilized patients with hemoglobin values between 6 and 10 gm/dl, the decision whether to transfuse is based on an evaluation of clinical status.

The present study comprised of 140 Anaemic patients who received packed red cell transfusion. The study was analyzed for a period of one year. Haematological parameters – complete blood counts were collected by running anticoagulated blood in automated haematology analyser before and after transfusing the blood units. Peripheral smear by using Leishman’s stain. Reticulocyte count by using new methylene blue.

Of total 140 patients, 45(34.6%) of patients were clinically diagnosed as iron deficiency anaemia followed by 43(33.1%) anaemia of chronic disease patients, 18(13.8%) of anaemia of chronic kidney disease, 20(15%) of anaemia of liver disease, 10(7.7%) of dimorphic anaemia (anaemia of combined deficiency) and 4(3.1%) of anaemia in hypersplenism.

Iron deficiency anaemia is the most common disease group in the present study followed by anaemia of chronic disease. Anaemia is more prevalent in the female population with M:F ratio of 4:5. Particularly iron deficiency anaemia is more prevalent among females with M:F ratio of 1:3. After one unit of packed red cell transfusion the mean increase in Hb in IDA was 1.106gm/dl, in anaemia of ACD was 0.922gm/dl, in anaemia of CKD was 1.015gm/dl, in anaemia of liver disease was 0.614gm/dl in anaemia of combined deficiency was 0.925gm/dl and in hypersplenism was 0.367 gm/dl.

From this background the present study concludes that before planning transfusion in anaemic patients, accurate clinical assessment and work up for type of anaemia is essential. After transfusion of one unit of packed red cells in chronic anaemia patients,. In all the types of anaemia studied, the mean increase in Hb and PCV values were statistically more significant (Pvalue<0.05) than other parameters. Hence Hb and PCV can be taken as valuable parameters to monitor the post transfusion outcome.
Study of clinico-pathological characteristics of colonic polyp seen at a tertiary care hospital in East India
Authors: Giri Swati Sucharita , Kumar Amar , Singh Sneha
Published: May 2022

Colorectal polyps are unusual growths of epithelial tissue projecting from the mucosaof the large bowel. This study aimed to evaluate the frequency of histological pattern of polyp among colorectal polypectomy specimen concerning age, sex, size, and site and histopathological features and associated dysplasia.

The study was done in the Pathology department in collaboration with the Gastroenterology Department on 115 patients. Biopsy was processed and histopathological features were studied with presence or absence of dysplasia.

Most patients had constipation (40.87%) followed by rectal bleeding (40.00%) followed by pain abdomen and anemia. Male patients were 76(66.08%) followed by 39(33.91%) female patients. Among male patients most are of age range of 50-59yr (18.42%) and in females were of age range of 60-69yr. (25.64%). Grossly most polyp are of pedunculated shape (74.78%) followed by ulcerated type (13.04%) and least was of sessile appearance (12.17%). Most polyp were found in left side (descending colon: 40.87%) followed by rectum, ascending colon, sigmoid colon and transverse colon with least with caecum. Most Polyps size < 1 cm (90.40%) followed by size of polyp > 1 cm (9.60%). Regarding the histopathological evaluation of polyp we have reported tubular adenoma (53.91%) followed by hyperplastic polyp (19.13%) followed by tubulovillous adenoma (13.04%). Most of the polyp showed no dysplasia (94.64%) and dysplasia if seen both in tubular adenoma and tubulovillous adenoma.

Colonoscopy is the most important tool in the detection of colonic polyp because of premalignant nature.
Internal quality control of blood & blood components - Two years study at a standalone blood centre, Ahmedabad
Authors: Patel Hetal , Prajapati Parul , Shah Ripal J , Harimoorthy V
Published: May 2022

Internal Quality Control (IQC) describes steps taken by the blood centre to ensure that tests are performed correctly and as per the guidelines. Primary goal of Quality Control is transfusion of safe quality of blood components to give optimal benefit to patients.

The aim of study was to ensure supply of safe and efficient blood component to patients.

Quality control of blood components prepared between December 2019 to November 2021 were included in our study. Monthly Quality control (QC) of the blood components were done as per the national guideline, 1% of total components prepared or minimum 4 units. Packed red cell units were evaluated for haematocrit, random donor platelet concentrates for yield and fresh frozen plasma (FFP) and cryoprecipitate were evaluated for volume, factor VIII and fibrinogen concentrations.

A total of 1302 units were tested for IQC. The mean hematocrit of RBC was 58.8%. In PLT, mean yield was 6.9 × 10/cu mm. Mean factor VIII and fibrinogen levels were found to be 377 IU/bag and 851.60 mg/bag in FFP respectively. Mean factor VIII and fibrinogen levels were found to be 311.81 IU/bag and 1694.4 mg/bag in cryoprecipitate respectively.

In the present era, Quality Control is very important step in maintaining quality of blood components and the quality objectives of the blood centre, so that we ensure most efficient blood transfusion to patient. The IQC of blood components at our blood centre is in overall compliance and met recommended national standards. Implementation of standard operating procedures, accomplishment of standard guidelines, proper documentation with regular audit and staff competencies can improve the quality performance of the transfusion services.
In- transit metastasis: Case report of a rare phenomenon in primary cutaneous squamous cell carcinoma
Authors: Raj K Anupama , P P Sathi , Ramakrishnan Janaky , Aseef Mahamood
Published: May 2022

Metastatic foci situated in dermal or subcutaneous tissue without the involvement of overlying skin, between the closest lymph node and primary tumor is called in transit metastasis. Although in transit metastasis has been commonly described in malignant melanoma, there are rare cases of squamous cell carcinomas, presenting with the same. It is an uncommon form of metastasis through lymphatics and is found in immunocompromised individuals. We present a case report of squamous cell carcinoma, presenting in an elderly male, as multiple nodules beneath skin. With this case, we highlight the variety of forms of spread in cutaneous squamous cell carcinoma and its prognostic importance.
Xanthogranulomatous cholecystitis - Mimicking carcinoma gall bladder
Authors: Pathak Tarali , Sharma Jagannath Dev , Sarma Anupam , Talukdar Abhijit , Kataki Amal C
Published: May 2022

Xanthogranulomatous cholecystitis (XGC)- a rare pathological entity of gall bladder, is characterized by marked inflammatory infiltrates of macrophages and foam cells with proliferative fibrosis of the gall bladder wall. Although it is a benign condition, its radiological picture and intra operative findings mimic gall bladder carcinoma- leading to misdiagnosis in most cases. We report a case of XGC in a middle-aged lady who presented with a lump in right hypochondrium. Computed Tomography (CT) scans of the abdomen was inconclusive for her. A CT-guided Fine Needle Aspiration Cytology (FNAC) was obtained, where findings were suggestive of XGC which was finally confirmed on histopathological examination of the cholecystectomy specimen. The characteristic cytologic features of XGC on FNAC in this case helped differentiate it from malignancy, thereby sparing the patient a morbid radical surgery. Preoperative FNAC and intraoperative frozen section are valuable tools for differential diagnosis of XGC and help guide the surgeon towards a correct surgical approach.
Efectos de la migración venezolana sobre la notificación de casos de VIH en Colombia
Authors: Molina-Lubo Omar Danith
Published: May 2022

Introducción: en la última década, millones de venezolanos han emigrado de su país; Colombia ha sido su principal destino. Es importante evaluar las repercusiones de la migración sobre eventos de interés en salud pública como la infección por el VIH, a fin de adoptar políticas pertinentes para atender la epidemia. Sin embargo, la información del estado de salud de la población migrante y su impacto sobre la salud pública en Colombia es escasa. Objetivos: evaluar el papel de los casos de VIH importados desde Venezuela en el comportamiento del evento VIH/SIDA/mortalidad por VIH en Colombia. Metodología: mediante cálculo integral se compara el área bajo las curvas de casos de VIH totales e importados notificados al Sistema Nacional de Vigilancia en Salud Pública de Colombia. Resultados: la curva de casos de VIH importados desde Venezuela tiene una contribución menor (2,26 %) en el incremento de casos notificados en Colombia. Conclusiones: la migración venezolana no es el principal factor responsable del incremento de casos de VIH en Colombia, deben evaluarse otros factores involucrados en la difusión de la pandemia a nivel local.
Programa de atención psicosocial y salud integral a víctimas del conflicto armado, Algeciras (Huila), Colombia, 2018
Authors: Rozo-Gutiérrez Nathaly , Durán Esperanza , Román-Ochoa María Antonina , Becerra-Pabón Ana Cecilia , Barroso-Niño Maritza , Martínez-Durán Mancel
Published: May 2022

Introducción: en Colombia se estima que existen 7 675 032 víctimas del conflicto armado. Uno de los departamentos del país con mayor afectación de personas es Huila. Debido al impacto del conflicto sobre la salud, es necesario realizar la caracterización de la población para identificar las necesidades derivadas de este y orientar las intervenciones. Objetivo: elaborar un programa de atención psicosocial y salud integral a víctimas del conflicto armado residentes en la cabecera municipal de Algeciras (Huila), Colombia. Métodos: diseño cuantitativo cross-sectional con fase descriptiva retrospectiva. Se realizó búsqueda activa en el municipio para el reconocimiento de la población víctima del conflicto. Para el análisis se utilizó Excel 2016 y SPSS versión 24. Resultados: la prevalencia para la población víctima del conflicto armado fue del 80,0 %. El tipo de violencia al que estuvieron expuestos fue desplazamiento (51,0 %) con un periodo de afectación entre diez a veinte años (35,8 %). Según grupos de edad predominaron las edades entre los 30 a 34 años con un 11,7 %. Conclusiones: 1) La prevalencia estimada para la población víctima del conflicto armado puso de manifiesto el reto psicosocial para dar respuesta desde una pespectiva individual, familiar y comunitaria. 2) Las intervenciones planteadas estuvieron orientadas hacia la atención psicosocial y desarrollo de habilidades individuales y sociales, las cuales deben complementarse con acciones interinstitucionales e intersectoriales para el mejoramiento de los determinantes sociales de la salud.
Epidemiología y factores asociados en personas con discapacidad de origen vial en Medellín 2004-2017
Authors: Salazar-Henao Edwin Alberto , Tonguino-Rosero Stefanie , Cabrera-Arana Gustavo Alonso
Published: May 2022

Objetivo: caracterizar la epidemiología de la Discapacidad de Origen Vial e identificar factores asociados a la dependencia funcional, participación en actos familiares, educativos y laborales en Medellín, Colombia 2004-2017. Métodos: estudio longitudinal, con fuente de información secundaria, recolectada a través de encuesta voluntaria y aplicada durante valoración clínica. Se analizó el total de registros de Personas con Discapacidad de Origen Vial; se desarrollaron cuatro modelos de regresión logística para identificar factores asociados con dependencia funcional, participación familiar, académica y laboral, con un error p=0,05. Resultados: entre 2004-2017 Medellín tenía registradas 63 848 Personas con Discapacidad. La causa que más la generó fue la enfermedad general con 21 444 (33,3 %) registros; los incidentes viales ocuparon primer lugar entre las incidentales con 3092 (39,3 %). Hombres con Discapacidad de Origen Vial eran 2181 (70,5 %) y mujeres 911 (29,5 %). Tener dos o más dificultades permanentes incrementó el riesgo de dependencia funcional (OR = 2,15; IC95 %: 1,75-2,65). La no participación en actos familiares estaba reducida en personas con nivel académico superior (OR = 0,71; IC95 %: 0,53-0,96). La no participación en educación aumentó por no recibir ingresos económicos (OR = 1,71; IC95 %: 1,40-2,09). La no participación laboral incrementó por barreras personales (OR = 1,61; IC95 %: 1,10-2,34). Conclusión: la Discapacidad de Origen Vial empuja familias en Medellín a mayor pobreza económica. La reintegración y participación en actos familiares y comunitarios de víctimas viales se restringe por factores físicos, ambientales, y actitudinales.
Multi-Turn Modeling of a Power Transformer under an Inter-Turn Short-Circuit Fault
Authors: Nacera Yassa , Hamza Houassine , Ghania Ouadfel , Mhemed Rachek
Published: May 2022

This paper presents a new method for modeling the steady-state behavior of the currents transmitted between the windings of a transformer subjected to an inter-turn short-circuit fault (ITSC). ITSC is one of the most frequent and most damaging faults in magnetically coupled circuits, which occur in power transformers. Coupled Electromagnetic Circuit (CEMC) Model modeling the reasoning and relationships describing the operating principle of a power transformer through the electrical and magnetic parameters defined by the self and mutual inductances that influence the voltages and currents transmitted between the transformer windings. The representation of the state variable equations of a proposed model of a three-phase multi-turn transformer in healthy mode (no fault) and in degraded mode (with inter-turn short-circuit faults of 10%, 20% and 30%) has been implemented using a program inserted in MATLAB software. The simulations illustrate the evaluation of the primary and secondary currents as well as the voltage drop across a load, and the accuracy of the state model based on the coupled circuits was validated. The results obtained can provide a basis for the design of the short circuit of the multi-turn transformer.
DPWM Applying for Five-Level NPC VSI Powered by PV-Boost Converter Based on Takagi Sugeno Fuzzy Model
Authors: Houam Ala , Zaamouche Fares , Ounnas Djamel
Published: May 2022

Power quality is interesting issue for power conversion PV system. Further there are challenges associated with extract of maximum power and minimize the part losses in commutation. In this paper, a three-phase five-level NPC voltage source inverter (VSI) using discontinuous pulse-width modulation (DPWM) and feeding by a PV/DC-DC boost converter based on a Takagi-Sugeno T-S fuzzy controller is presented. The photovoltaic energy system is described by nonlinear equations. A T-S fuzzy model is used to transform the nonlinear equations into a fuzzy model by modeling the irradiation, temperature and output voltage parameters. The control parameters have been computed based on Linear Matrix Inequalities tools (LMI) and the stability of the system is ensured by Lyapunov approach. In the second stage for power conversion (DC/AC), a discontinuous pulse-width modulation (DPWM) is used and approved; it offers the possibility of reducing switching losses and the THD harmonic rate. The simulation was performed in the MATLAB/Simulink software using an R-L load and the obtained results are confirmed the feasibility and reliability of the proposed method for the PV conversion system.
Importance of paravertebral muscle quality in the etiology of degenerative lumbar spinal stenosis
Authors: KAYA İsmail
Published: May 2022

Objectives: Degenerative lumbar spinal stenosis (DLSS) is the leading cause of pain, disability, and loss of independence in older adults. In this study, the relationship between DLSS and paravertebral muscle thickness and density was investigated using computed tomography (CT) and magnetic resonance imaging (MRI) methods. Thus, the importance of muscles has been examined to take precautions in the name of preventive medicine.
Methods: This study was planned as a cross-sectional study. The patient group (n = 77) who had surgery for DLSS and the control group (n = 77) were examined. A total of 154 participants (55 females and 22 males in each group) were evaluated retrospectively in terms of cross-sectional area (CSA) and density in the psoas, erector spina and multifidus muscles. In both groups age, gender and body mass index values equalized. Measurements was averaged from the mid-lumbar 3 level from both sides and multi-points.
Results: There was no significant difference between muscle thicknesses (p > 0.05). When evaluated in terms of muscle densities, a significant difference was found between the patient and the control group in terms of psoas muscle (p < 0.05). Likewise, there is the same relationship between erector spinae muscle density and multifidus muscle density (p < 0.05).
Conclusions: Roughly no difference was found between the patient and control groups in terms of CSA of the psoas, erector spinae and multifidus muscles, but it was observed that the muscle density, especially in the multifidus, decreased significantly in the patients. Our results suggest that paravertebral muscle density assessment is an important criterion in disease prediction and can inform preventive treatment.
Zastosowanie badań izotopowych do określania pochodzenia wybranych biomarkerów
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Bieleń Wojciech , Janiga Marek ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy
Published: May 2022

Badania izotopowe n-alkanów, pristanu (Pr) oraz fitanu (Ph) przeprowadzono przy pomocy aparatu GC-IRMS. Porównanie wartości δ13C – pristanu do n-C17 oraz fitanu do n-C18, a także zestawienie wartości δ13C pomiędzy pristanem a fitanem w obrębie jednej próbki pomaga zidentyfikować źródło pochodzenia tych izoprenoidów, co było celem pracy. Ta ostatnia informacja uwiarygadnia lub podaje w wątpliwość wskaźnik środowiska sedymentacji – Pr/Ph. Wartości δ13C n-alkanów dla rop naftowych z tego samego złoża: Bóbrka 113, Niepodległość 2, Bandrów wskazują na pochodzenie tych rop od roślin C3 (fotosynteza typu C3) oraz z osadów rzecznych lub/i jeziornych. N-alkany występujące w tych trzech ropach naftowych mogą mieć mieszane źródła i pochodzić zarówno od roślin lądowych, jak i wodnych. Ropa naftowa Łodyna 90K może pochodzić z różnorakich wyższych roślin. Wartości δ13C n-alkanów z próbek ekstraktów bitumicznych Dukla 2A i Dukla 2D są charakterystyczne dla roślin C3. Pristan i fitan w badanych próbkach rop naftowych i w przypadku dwóch próbek ekstraktów bitumicznych Dukla 2A i Dukla 2D mają wartości δ13C niższe niż wartości δ13C dla n-C17 i n-C18, co sugeruje pochodzenie od organizmów heterotroficznych. We wszystkich badanych próbkach rop naftowych (wyjątki: Łodyna 90K, Osobnica 35) wartości δ13C dla Pr i Ph w obrębie pojedynczej próbki świadczą o tym samym materiale źródłowym dla tych izoprenoidów. Ta informacja potwierdza, że wskaźnik Pr/Ph, mówiący o typie środowiska sedymentacji materii organicznej, jest wiarygodny. W dwóch ekstraktach bitumicznych (Dukla 2D i Krosno 8) wartości δ13C dla Pr i Ph są różne, dlatego istnieje duże prawdopodobieństwo odmiennego pochodzenia dla tych dwóch izoprenoidów (należy być ostrożnym co do wiarygodności wskaźnika środowiska sedymentacji Pr/Ph).
Polimery syntetyczne do regulowania filtracji płuczek wiertniczych w warunkach podwyższonej temperatury
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Zima Grzegorz , Jasiński Bartłomiej ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Uliasz Małgorzata ,   Instytut Nafty i Gazu - Państwowy Instytut Badawczy, Błaż Sławomir ,   Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Published: May 2022

W artykule przedstawiono badania laboratoryjne nad zastosowaniem do regulowania filtracji polimerów syntetycznych takich jak kopolimery i terpolimery zbudowane z merów winylowoamidowych, winylowosulfonowych, akrylowosulfonowych lub bezwodnika maleinowego. Środki te według danych literaturowych wykazują odporność termiczną powyżej 200°C. Na podstawie przeprowadzonych badań z wykorzystaniem nowych środków syntetycznych dokonano ich doboru do regulowania filtracji i parametrów reologicznych płuczek wiertniczych w różnych warunkach geologicznych oraz określono korelację pomiędzy wynikami badań filtracji uzyskanymi na statycznej i dynamicznej prasie filtracyjnej HPHT oraz wynikami filtracji otrzymanymi za pomocą aparatu Grace M2200 HPHT. Badania polimerów syntetycznych przeprowadzono w płuczce, w której składzie zastosowano środek skrobiowy i biopolimer XCD. Płuczka ta zawierała dodatkowo 7% inhibitora jonowego KCl i 7% blokatora węglanowego w celu utworzenia osadu filtracyjnego. Dla badanych płuczek przeprowadzono pomiary ich podstawowych właściwości oraz wykonano pomiary statycznej i dynamicznej filtracji HPHT na standardowych sączkach do pomiaru filtracji oraz krążkach ceramicznych o porowatości 20 µm. Filtrację statyczną określono w temperaturach 60°C i 120°C, natomiast dynamiczną w temperaturze 120°C. Filtrację przy użyciu aparatu Grace M2200 HPHT zmierzono również w temperaturach 60°C i 120°C na rdzeniach o porowatości 20 µm. W celu odtworzenia warunków otworowych do płuczek dodawano zwierciny (zmielony łupek mioceński) i skażenia chemiczne w postaci chlorków wapnia i magnezu oraz obciążano je barytem. Wyniki pomiarów na aparacie Grace M2200 HPHT podane w artykule zostały przeliczone na podstawie stosunku powierzchni filtracji w celu porównania z filtracją HPHT na krążkach ceramicznych. Dla płuczek dodatkowo przeprowadzono badanie dyspersji skały ilastej w celu określenia i porównania ich właściwości inhibicyjnych. Uzyskane wyniki badań mogą znaleźć zastosowanie w warunkach przemysłowych podczas głębokich wierceń oraz pozyskiwania energii geotermalnej.
Mieszalnia gazów jako niezbędny element aparatury badawczej w nowoczesnym laboratorium paliw gazowych
Authors:   Instytut Nafty i Gazu – Państwowy Instytut Badawczy, Basiura Maciej , Rataj Mateusz ,   Instytut Nafty i Gazu – Państwowy Instytut Badawczy
Published: May 2022

Autorzy przedstawiają rozwój technologii otrzymywania mieszanin gazowych w Laboratorium Badań Urządzeń Gazowych i Grzewczych Instytutu Nafty i Gazu – Państwowego Instytutu Badawczego w Krakowie. We wstępie do artykułu zwrócono uwagę na konieczność stosowania mieszanek gazowych o różnym składzie procentowym podczas badań urządzeń gazowych, na potrzeby certyfikacji i dopuszczenia do udostępnienia urządzeń do obrotu na rynku UE. Zaprezentowano najprostsze metody otrzymywania mieszanek gazowych. Przedstawiono metody stosowane w Laboratorium we wcześniejszych latach, dzięki którym otrzymywano mieszanki badawcze bez użycia urządzeń automatycznej regulacji strumienia gazu. Do tworzenia mieszanek wykorzystywano prawa fizyczne opisujące stany równowagi mieszaniny gazowej. Następnie przedstawiono zasadę działania mieszalni gazów oraz elementy umożliwiające jej automatyzację. Opisano opracowane w INiG – PIB konstrukcje mieszalni gazów do badań, umożliwiające automatyczne otrzymywanie mieszanin gazowych. Zaprezentowano również mieszalnik, będący przedmiotem zgłoszenia patentowego. W drugiej części artykułu przedstawiono szeroki zakres prac badawczych i rozwojowych wykonanych przez pracowników Instytutu na przestrzeni lat. Pokrótce opisano prace badawcze, skupiające się m.in. na wymienności paliw gazowych. Polegały one na badaniu parametrów użytkowych urządzeń gazowych podczas zasilania gazami z domieszkami różnych gazów w ilościach niespotykanych obecnie w gazie ziemnym, np. etanu, wodoru, tlenku węgla(IV). Innymi opisanymi w artykule tematami podjętymi przez pracowników INiG – PIB jest wykorzystanie wodoru jako domieszki do gazu ziemnego i przedstawienie jego wpływu na wszystkie elementy sieci przesyłowej i dystrybucyjnej. Wszystkie opisane prace badawcze podejmowane przez pracowników INiG – PIB mogą stać się ważną częścią składową analiz związanych z dywersyfikacją dostaw gazu na terenie Polski. W podsumowaniu przedstawiono perspektywy rozwoju mieszalni gazów, w tym ich komercyjne wykorzystanie przez operatorów sieci przesyłowej i/lub dystrybutorów gazu. Artykuł zwraca uwagę na fakt, że w dobie transformacji energetycznej świata i położenia nacisku na wykorzystanie ekologicznych paliw mieszalnie mogą stać się niezbędnym elementem systemu dostarczania gazu dla odbiorców końcowych.
Improving farm machinery operation and maintenance to optimise fuel use efficiency
Authors:   University of Southern Queensland, Australia, Jensen T. A. , Tullberg J. N. ,   University of Southern Queensland, Australia, Antille D. L. ,   University of Southern Queensland, Australia,   CSIRO Agriculture and Food, Australia
Published: May 2022

This chapter discusses energy use and emissions from direct fossil fuel combustion on farms to power farm machinery. It first reviews techniques for optimising tractor fuel consumption as well as developments in fuel-efficient tractor designs. The chapter also discusses energy savings and other benefits from adoption of controlled traffic farming (CTF) systems
Portal vein embolization in intrahepatic portal vein injury after blunt trauma: a case report
Authors: Cho Sung Hoon , Lee Sang Yub , Cha Jung Geun , Hong Jihoon , Lee Sangcjeol , Lim Kyoung Hoon
Published: May 2022

Mortality from hepatic injury has declined over the last several decades for various reasons, including nonoperative management, such as angioembolization, in more than 80% of cases. Conversely, surgical treatment is preferred in intrahepatic portal vein injury due to several reasons. Here, we report a case that treatment of blunt traumatic liver injury accompanied by intrahepatic portal vein injury through portal vein embolization. A 29-year-old female patient was transferred to our trauma center for vehicular accident injuries. Contrast-enhanced abdominal computed tomography showed a massive hemoperitoneum and liver laceration (grade IV) with contrast extravasation suspected of the right portal vein branch but no other organ injury. Since vital signs were stable, we decided to perform nonsurgical radiologic intervention. Portography showed active bleeding of the posterior branch of the right portal vein. A pseudoaneurysm in the portal vein was embolized through percutaneous transhepatic portal vein puncture. On follow-up liver dynamic computed tomography performed 2 days after embolization, the posterior branch of the right portal vein was sufficiently embolized, and no liver parenchymal necrosis was observed. The patient was discharged without any complications 2 weeks later. This report suggests portal vein embolization as a good alternative treatment method for portal vein injury in patients with stable vital signs.
INFLUENCE OF ATTITUDE, SUBJECTIVE NORM, PERCEIVED BEHAVIOUR CONTROL TO PERFORM INTENTION IN PREVENTION ACTION OF DIABETES
Authors: Isnanda Shofwanto adhi , Nurmala Ira
Published: May 2022

Introduction: This study aimed to identify influence of  attitude, subjective norm, and perceived behavior control to intention on preventive behavior of type II diabetes in Theory of Planned Behaviour model. Methods: This study is an observational study with a cross-sectional and analytical design. The population in this study were all undergraduate students of Public Health FKM UA. The sample was determined by using simple random sampling technique, until a total sample of 234 respondents was obtained. Result: Research on type II preventive behavior showed that respondents who agreed to the positive impact of preventive behavior of type II diabetes and had confidence that they could implement preventive behavior of type II diabetes by 70.08% of the total respondents. Respondents who had subjective norms agree on preventive behavior of type II diabetes and havmd the confidence to be able to perform preventive behavior for type II diabetes by 70.09% of the total respondents. Respondents who had the confidence to be able to interpret themselves were able to perform preventive behavior of type II diabetes and had confidence in carrying out preventive behavior for type II diabetes by 47.44% of the total respondents. Conslusion: Based on the results of the study showed that the attitude variable (P < 0.905) did not significantly influence the intention variable. While the subjective norm (P > 0,001) and perceived variables control (P > 0,001) significantly influence intention. Keywords:Type II Diabetes Mellitus, Prevention, TPB
THE CORRELATION BETWEEN KNOWLEDGE AND FOOD SELECTION PRACTICES AND HAZARDOUS SUBSTANCES AMONG JUNIOR HIGH SCHOOL STUDENTS
Authors: Artanti Cindy Zerlina , Dewanti Linda , Dharmawati Ira
Published: May 2022

Introduction: There are many cases of food poisoning in Surabaya. Furthermore, there are also many food vendors around the school and canteen using hazardous substances which can cause food poisoning. The aim of this study was to analyze the association between knowledge and food selection practices among students at one of junior high schools in East Surabaya towards hazardous substances. Methods: The methods of this is an analytic-observational study with a cross-sectional design which used primary data from the student who fills out the questionnaire. The study sample includes 119 students at junior high school 19 Surabaya, Indonesia, range of age 12-14 years old. The dependent variable in this study food selection practices, the independent variable was level of knowledge of hazardous substances. The study used 4 questionnaires to collect the data. Data collection was carried out in December 2019, this study used simple random sampling and the data analyzed by Chi-Square Test. Result: The results of this research showed that 52.9% of students have knowledge category ‘moderate’ and 47% of students ‘food selection practices’ category ‘correct’. This research showed that there was no significant correlation between knowledge and food selection practices. Conclusion: The conclusion of this study there was no significant correlation between  knowledge and food selection practices towards on hazardous substances, it must another factor that could be affected the decision of adolescents. Keywords: food poisoning, food selection, knowledge, food vendor, hazardous substances, schoolchildren
IDENTIFICATION OF SOCIAL SUPPORT FOR CHILDREN AS SURVIVORS OF DOMESTIC VIOLENCE AT THE SURABAYA EMBUN FOUNDATION
Authors: Fanani Farah Diba Nur , Fatah Mohammad Zainal
Published: May 2022

Introduction: Violence is an act that can cause an injury and affects other people both physically and psychologically as opposed to the law. Violence can be considered a crime. In general, violence targets groups or parties that are vulnerable. Children are part of vulnerable groups to violent behavior, including child abuse. According to DPKP3A data, there are 38 children victims of sexual abuse. Methods: This research aims to describe the existence of social support for children as victims of domestic violence at the Embun Surabaya Foundation. This foundation focuses on protecting and empowering children and women who are victims of exploitation and violence. This research used a qualitative approach with phenomenology methods supported by data collection using in-depth interviews and observations. The informants of this research were five people consisting of four girls who were victims of domestic violence and one supervisor staff at the Surabaya Embun Foundation. Result: The results indicate that children as victims of domestic violence at the Embun Surabaya Foundation receive excellent social support in informational support, emotional support, appraisal support, and instrumental support. These four supports have brought victims to accept themselves and increase their confidence. Conclusion: The four supports are given by their families (families that are not included in the perpetrators of violence) and the staff of the Embun Surabaya Foundation. Keywords: Violence, child abuse, social support
ANALYSIS OF WORK MOTIVATION AND WORK DISCIPLINE OF EMPLOYEE AT WIYUNG SEJAHTERA HOSPITAL SURABAYA
Authors: Salsabilla Natasya , Puspitasari Popy , Haqi Dani Nasirul , Rofiq Ainur , Wulandari Ratna Dwi
Published: May 2022

Introduction: Work discipline is the obedient attitude of an employee towards the rules that apply in the workplace. Work discipline directly affects work productivity. Methods: This study aimed to investigate the correlation of work motivation and work discipline of the employee at Wiyung Sejahtera Hospital Surabaya. This study was an observational analytical research with cross sectional method, where each of the respondents was observed or interviewed for once. The samples used proportional random sampling with a sample size of 80 respondents who were hospital employees. Independent variable in this study was work motivation and a dependent variable was dicipline of employee. Data were analyzed by using spearman. Result: The respondents’ characteristics were mostly female (81.25%) with age criteria age 21-30 years old (80.0%). Meanwhile, the characterictic based on educational level suggested that more than half of respondents were diploma graduates(67.5%)  and have the most work periode for more than 3 years (33.75%). The majority of respondents had a moderate level of work motivation at 41.3% and the majority of respondents had a moderate level of work discipline at 42.5%. The results showed that there was correlation between work motivation and work discipline (p = 0.000). Conclusion: It can be concluded that there is a relationship between work motivation and work discipline of employee at Wiyung Sejahtera Hospital Surabaya. As the relation is very strong, an employee who has a high level of work motivation will have a high level of work discipline too and otherwise.  Keywords: work motivation, work discipline,Wiyung Sejahtera Hospital
A Spatial Analysis of Dengue Hemorrhagic Fever (DHF), Hygiene, and Latrines in Depok City in 2020
Authors: Naim Salsabila , Hastono Sutanto Priyo , Rahayu Sukma , Wangi Martina Puspa
Published: May 2022

Introduction: Depok is one of the areas in West Java with an increasing Dengue Hemorrhagic Fever (DHF) trend. In 2017, 548 DHF cases were reported, and this increased to 1,276 cases in 2020. It is necessary to control and map influencing factors on DHF incidence to detect endemic areas and reduce its spread. Methods: This study was conducted to identify a spatial autocorrelation between DHF, hygiene, and clean latrines in Depok in 2020. The data were obtained from the Depok City’s Health Profile published in 2020. The Moran’s I and local indicator of spatial association (LISA) univariate and bivariate analysis methods were performed using the GeoDa application. Results and Discussion: DHF (Moran’s I = 0.32), hygiene (Moran’s I = 0.25) and clean latrines (Moran’s I = 0.24) had a significant positive autocorrelation with the clustered pattern. This indicated that data patterns clustered had similar characteristics in the area. Villages in the high-high DHF incidence quadrant were Kukusan, East Beji, Beji, Tanah Baru, Kemirimuka, Depok, Pancoran Mas, and Depok Jaya. In general, there was no spatial autocorrelation neither between DHF and hygiene, nor DHF and clean latrines. However, in some urban villages, significant autocorrelations between these variables were discovered. Conclusion: DHF incidence in this study formed a clustered pattern. Influencing factors, such as hygiene and clean latrines, followed the same pattern. Besides that, a spatial autocorrelation was also apparent between DHF and hygiene, as well as DHF and clean latrines in several urban villages in Depok.
Rage against the machine: A money-burning field experiment
Authors: Sanjaya Muhammad Ryan
Published: May 2022

Purpose ― This study investigates antisocial behaviour where participants made payoff destruction decisions (“money burning”) that are conditional on the co-participant being a human or a computer.
Methods ― This study uses the joy-of-destruction minigame experiment with Indonesian citizens living in Australia as the participants. Regression methods are used to observe whether discrimination occurs and to identify factors associated with antisocial behaviour.
Findings ― This study finds money burning against the computer to be more prevalent than against humans. There was very limited support that such behaviour was correlated with demographic characteristics or subjective norms, suggesting that the presence of a computer co-participant drives the result.
Implications ― The results have a methodological implication for experimental economics where experimenters should anticipate that computer players may have an unforeseen impact on human behaviour. Policy-wise, the study shows a relatively cohesive community which may be driven by the multicultural policy of Australia.
Originality ― This is the first antisocial behaviour economics experiment that includes a computer as a potential co-participant.
Analysis of Changes in Atmospheric CO2 Emissions Using Prophet Facebook
Authors: Primandari Arum Handini , Thalib Achmad Kurniansyah , Kesumawati Ayundyah
Published: May 2022

CO2 emissions have been an environmental issue for decades. The trigger for the increasing concentration of CO2 in the atmosphere is the growth of industries related to burning fossil fuels for coal, natural gas, and petroleum. For nearly a century, several attempts have been made to suppress the rapid growth of CO2 . This study uses daily atmospheric  CO2  levels observed in  Mauna Loa laboratories. The method used is a Prophet that can handle seasonality and mark the change points. Almost 20% of data was missing value, which was then imputed using spline interpolation. Based on the analysis results,  CO2 levels have an upward trend throughout the year and seasonality. There is no point of change in the last ten years that shows a decrease in  CO2  levels. Using forward chaining cross-validation evaluation and error measurement, the prophet model can follow the pattern of  CO2  levels well. The average RMSE value is less than 2.0, with an MAPE value bellow 0.5%.
Geographically Weighted Regression with The Best Kernel Function on Open Unemployment Rate Data in East Java Province
Authors: Putra Robiansyah , Wahyuning Tyas Sischa , Fadhlurrahman Muhammad Ghani
Published: May 2022

Unemployment is one of the problems that hinders employment development programs. Based on East Java BPS data, the Open Unemployment Rate in East Java in 2019 is about 3.92 percent. In 2020, unemployment increased by 466.02 thousand people and OUR increased by 2.02 percent to 5.84 percent in August 2020. In addition to the indicators that affect OUR, each observation location has different characteristics, so multiple linear regression modeling is not appropriate. Geographically Weighted Regression is one of the spatial analysis developed from multiple linear regression for data containing spatial heterogeneity effects. The weighting functions used for this GWR model are Kernel Fixed and Adaptive functions (Gaussian, Bi-Square, Tricube, and Exponential). The analytical step carried out in estimating the parameters is to use WLS. In the test, the best weighting was obtained, namely the Adaptive Tricube. Based on the results of the study, the GWR model with Adaptive Tricube weighted resulted in the value of R-Squared = 84.88%. However, the best model is obtained from the GWR model with exponential weighting with the smallest Akaike Information Criterion (AIC) value compared to the others, namely AIC = 86.01264 with R-Squared = 91.67.