bluuebunny/crossref_metadata_2025 huggingface dataset:
Perimetry Criteria For Assessing The Effectiveness Of Retinoprotective Therapy
Authors: Dorofeev Dmitry A. , Erichev Valery P. , Kirilik Elena V. , Kokorin Ilya V. , Rakova Polina A. , Solovieva Olga B. , Tsyganov Artem Z. , Chemyakina Anastasiya S. , Ekgardt Valery F.
Published: March 2022

Objective — To evaluate the effect of the frequency of retinoprotective therapy courses on perimetry parameters, to compare Octopus 900 perimeter with Octopus 600 perimeter, and to assess threshold perimetry results of G-dynamic versus 24-2 programs. Material and Methods — The study involved 17 patients (34 eyes) diagnosed with primary open-angle glaucoma of advanced stage. Group 1 included subjects receiving a course of Retinalamin every 3 months. Group 2 comprised patients undergoing Retinalamin therapeutics every 6 months. Results — At the onset of the study via G-dynamic and 24-2 programs, we did not observe any statistically significant differences between the groups in mean deviation of retinal photosensitivity (MD) and pattern standard deviation of mean retinal photosensitivity (PSD). However, the absolute values differed between groups and between programs. On average, the differences in MD and PSD values obtained in the photosensitivity study with G-dynamic vs. 24-2 programs were -0.36 dB (CI 95%: -4.27; 3.54) and 0.63 dB (CI 95%: 2.37; -1.11), respectively. Hence, studies performed via 24-2 and G-dynamic programs yielded comparable results (no statistically significant differences). However, they could not be identical due to different spatial arrangement of points in different programs. Conclusion — As a result of conducted treatment, retinal photosensitivity did not exhibit statistically significant changes; however, we observed positive dynamics in both groups in MD and PSD parameters of mean retinal photosensitivity. Different devices (Octopus 600 and Octopus 900 perimeters) and different programs (24-2, G-dynamic) yielded different outcomes due to their technical features and capabilities of reproducibility; however, these differences were not statistically significant.
Androgen Deficiency In Men With Chronic Obstructive Pulmonary Disease
Authors: Podzolkov Valery I. , Ishina Tatyana I. , Medvedev Ivan D.
Published: March 2022

Hypogonadism is a clinical condition comprising symptoms and laboratory evidence of testosterone deficiency and low androgen receptor sensitivity. The importance of hypogonadism in clinical practice is often underestimated. Androgen deficiency habitually occurs in various conditions causing abnormal functioning of many organs and systems, as well as impairing the quality of life in patients. Androgen deficiency often occurs with various somatic diseases. Chronic obstructive pulmonary disease (COPD) is one of the most important medical and social problems of modern medicine, in which severe systemic (including hormonal) disorders occur. This review presents data on androgen deficiency in men with COPD and its potential impact on the patients. We have analyzed literary sources in the eLIBRARY and PubMed databases.
Effect Of Mental Imagery And Physical Exercise On Musculoskeletal Pain And Quality Of Life Among Office Workers: A Commentary
Authors: Gisour Bita Bagheri , Najafabadi Mahboubeh Ghayour , Gharayagh Zandi Hassan , Shaw Ina
Published: March 2022

Background — Musculoskeletal pain is one of the most common problem among office workers. The main reason is related to the long time spent sitting and the associated lack of physical activity. Musculoskeletal pain can affect not only their work-related performance, but also their personal performance and quality of life. Research has mainly focused on the effects of physical activity in managing musculoskeletal pain in office workers, while research is sparse pertaining to the possible role of mental imagery on reducing musculoskeletal pain in office workers. While mental imagery has only a minor effect on pain modulation in healthy individuals, its effect appears to be more pronounced in those with chronic pain. Aim — This commentary attempts to present beneficial mental imagery techniques that can be used solely or in combination with physical exercise in an office-based setting to improve musculoskeletal pain to enhance work performance and quality of life among office workers.
A Prospective Study Comparing Treatment Outcomes Of Empyema Management Techniques: Chest Tube Vs. Video-Assisted Thoracoscopic Surgery
Authors: Rashnoo Fariborz , Farsad Seyed Mehdi , Pejhan Saviz , Faz Atena Alipour , Mirhashemi Seyed Hadi , Soori Mohsen , Oshidari Bahador , Nasrollah Esmaeil Haji , Hakakzadeh Azadeh , Peyvandi Hassan
Published: March 2022

Introduction — High mortality and morbidity rate of empyema, despite effective antibiotic therapy, highlights the need to determine the optimal drainage method as a first-line surgical intervention. Controversies behind the treatment choice for empyema encouraged us to conduct this study aimed at demonstrating efficacy and differences of two techniques of clinical approach to empyema, chest tube and video-assisted thoracoscopic surgery (VATS) with respect to outcomes. Material and Methods — We recruited 60 eligible patients with empyema and distributed them among two groups according to applied treatment strategies, either chest tube treatment method (Group I, 30 subjects) or VATS (Group II, 30 patients). Data were statistically analyzed by SPSS software, version 19. Then, the one-sample Kolmogorov–Smirnov test confirmed the normality of data distribution, and independent samples t-test was performed. Statistical significance was assumed at p<0.05. Results — We established that the length of hospital stay (p=0.002), the need for second intervention (p<0.001), and rate of recurrence (readmission) (p=0.001) were significantly lower in patients treated with VATS, compared with patients who were subjected to chest tube drainage. Additionally, patients who underwent VATS exhibited higher satisfaction level (p=0.03) and improved clinical condition at the time of discharge (discharged without chest tube) (p<0.001), than those from Group I. Radiographic examination on postoperative day 7 revealed a higher rate of complete cure (normal lung expansion) in the VATS group (p=0.004). Conclusion — According to the results of our study, VATS is a better treatment technique of empyema, compared with chest tube.
Gear fault monitoring based on unsupervised feature dimensional reduction and optimized LSSVM-BSOA machine learning model
Authors: Nguyen VietHung , V.T. Pham
Published: March 2022

In the trend of Industry 4.0 development, the big data of system operation is significant for analyzing, predicting, or identifying any possible problem. This study proposes a new diagnosis technique for identifying the vibration signal, which combines the feature dimensional reduction method and optimized classifier. Firstly, an auto-encoder feature dimensional reduction (AE-FDR) method is constructed with the bottleneck hidden layer to extract the low-dimensional feature. Secondly, a supervised classifier is formed to carry out fine-turning and classification. The least square-support vector machine (LSSVM) classifier is used as basic with an optimized parameter exploited by the backtracking search optimisation algorithm (BSOA). This LSSVM-BSOA is used to identify the gear fault based on the original vibration data. The proposed AE-FDR-LSSVM-BSOA diagnosis technique shows good ability for identifying the gear fault. A helical gear is experimented with three fault status for evaluate this method. The diagnosis result achieves a high accuracy of 93.3%.
Mechanics of solder/IMC interface of lead-free solder interconnects in ball grid array assembly
Authors: Asasaari Siti Faizah , Fadil Nor Akmal , Tamin Mohd Nasir
Published: March 2022

The lead-free Sn-0.4Ag-0.5Cu (SAC405) solder arrays provides an interconnection between the electronic package and printed circuit board (PCB) of the assembly. The ball grid array (BGA) test assembly was exposed to thermo-mechanical loading during solder reflow cooling and subsequent reliability temperature cycles. This could contribute to the solder/IMC interface damage and cracking. Finite element (FE) analysis was utilized to model the BGA assembly under the prescribed temperature loading profile. The unified constitutive (Anand) model was used to describe the temperature- and strain rate-dependent response, and solder/IMC interface damage of the SAC405 solder interconnects. Solder reflow cooling begins from the assumed stress-free reflow temperature of 220 °C to 25 °C at 1.3 °C/s. This was followed by temperature cycling between 125 and -40 °C with 15 minutes dwell time at upper and lower peak temperature levels. The temperature ramp rate of 11 °C/min was used. Results show that the most critically stressed solder joint was the one located underneath the edge of the silicon die. The solder/IMC interface crack initiated at the interface near the package side of the assembly. Catastrophic fracture of the BGA assembly was predicted during the first temperature cycle due to the relatively low input strength and toughness of the brittle-like solder/IMC interface properties. The solder/IMC failure prediction could not be inferred solely from inelastic strain in the bulk  solder joint but should also consider the damage of the interface. This study shall benefit the newly designed BGA packages through rapid generation of reliability data and by providing insight into the reliability aspects of the BGA assembly with interface fracture issues.
Experimental investigation on combustion behaviour, performance and emission of fusel oil-gasoline blends using turbocharged SI engine
Authors: Sm Rosdi , R. Mamat  , M.H.M. Yassin  , T. F. Yusaf  , F. Khoirunnisa
Published: March 2022

Because of rising energy demand and pollution concerns in the transportation and industrial sectors, alternative fuel development is critical. The fusel oil, which is a by-product of ethanol distillation molasses, is receiving a lot of interest. The combustion characteristics, performance, and emissions of a 1.8L turbocharged four-cylinder, port injection, spark-ignition engine will be used to compare fusel oil blends with gasoline in this study. The experiment was carried out at a constant engine speed of 2000 rpm with a throttle load of 10-40%. Four samples with various ratios of gasoline combined with fusel oil were tested (100% gasoline, 10%, 20%, and 30% are referred to as F0, F10, F20, and F30 respectively). As a result, compared to gasoline, fusel oil blends increase Brake Specific Fuel Consumption (BSFC) by 5-22%. In comparison to gasoline, the combustion behaviour of in-cylinder pressure, Rate of Heat Release (ROHR), Rate Of Pressure Rise (ROPR), and Mass Fraction Burn (MFB) shows an early 2-3 Degree Crank Angle (CAD). Due to differences in attributes and oxygen content, the Brake Thermal Efficiency (BTE) of combustion utilising fusel oil blends suffers a modest drop of 13-16%. When compared to gasoline, fusel oil blends emit 3-4% less hydrocarbon (HC), 7.5-24.5% less carbon monoxide (CO), and 18-36% less nitrogen oxide (NOx). To summarise, fusel oil blends without water extraction blended with gasoline have a substantial impact on turbocharger engine functioning.
Thyroid dermopathy responds to teprotumumab therapy
Authors: Crespo-Trevino Ricaurte , Schiffman Jade , Ugradar Shoaib , Cockerham Kimberly , Douglas Raymond , de Leon-Garza David , Tang Rosa
Published: March 2022

Thyroid dermopathy is an uncommon manifestation of thyroid disease that impairs the quality of life in certain cases. Currently, the available treatments offer limited results and a chance of recurrence. Teprotumumab, a novel medication that results in the regression of thyroid ophthalmopathy, may have similar effects on dermopathy. We describe four patients treated with teprotumumab for their thyroid ophthalmopathy who concomitantly had dermatopathy upon initiation of their infusions. Patients improved after two to three infusions and three out of the four patients have not suffered a recurrence.Teprotumumab is a monoclonal antibody (MAB) that attenuates an inflammatory response, resulting in decreased edema and tissue expansion. Given the similarities of their pathophysiology, we believe that the resolution of thyroid dermatopathy and regression of thyroid eye disease occurs via the same mechanism. We encourage further investigation utilizing teprotumumab for patients whose dermopathy is associated with impaired quality of life.

Learning points

Thyroid dermopathy (TD), an uncommon manifestation of thyroid disease, may occasionally impair function and quality of life.

There are only a few treatments for TD, with limited results and high rates of recurrence.

Teprotumumab is a Food and Drug Administration-approved medication used for thyroid eye disease (TED).

Our patients treated with teprotumumab for TED showed improvement of TD, which demonstrates its potential use for this condition.
Safety of growth hormone replacement in survivors of cancer and intracranial and pituitary tumours: a consensus statement
Authors: Boguszewski Margaret C S , Boguszewski Cesar L , Chemaitilly Wassim , Cohen Laurie E , Gebauer Judith , Higham Claire , Hoffman Andrew R , Polak Michel , Yuen Kevin C J , Alos Nathalie , Antal Zoltan , Bidlingmaier Martin , Biller Beverley M K , Brabant George , Choong Catherine S Y , Cianfarani Stefano , Clayton Peter E , Coutant Regis , Cardoso-Demartini Adriane A , Fernandez Alberto , Grimberg Adda , Guðmundsson Kolbeinn , Guevara-Aguirre Jaime , Ho Ken K Y , Horikawa Reiko , Isidori Andrea M , Jørgensen Jens Otto Lunde , Kamenicky Peter , Karavitaki Niki , Kopchick John J , Lodish Maya , Luo Xiaoping , McCormack Ann I , Meacham Lillian , Melmed Shlomo , Mostoufi Moab Sogol , Müller Hermann L , Neggers Sebastian J C M M , Aguiar Oliveira Manoel H , Ozono Keiichi , Pennisi Patricia A , Popovic Vera , Radovick Sally , Savendahl Lars , Touraine Philippe , van Santen Hanneke M , Johannsson Gudmundur
Published: March 2022

Growth hormone (GH) has been used for over 35 years, and its safety and efficacy has been studied extensively. Experimental studies showing the permissive role of GH/insulin-like growth factor 1 (IGF-I) in carcinogenesis have raised concerns regarding the safety of GH replacement in children and adults who have received treatment for cancer and those with intracranial and pituitary tumours. A consensus statement was produced to guide decision-making on GH replacement in children and adult survivors of cancer, in those treated for intracranial and pituitary tumours and in patients with increased cancer risk. With the support of the European Society of Endocrinology, the Growth Hormone Research Society convened a Workshop, where 55 international key opinion leaders representing 10 professional societies were invited to participate. This consensus statement utilized: (1) a critical review paper produced before the Workshop, (2) five plenary talks, (3) evidence-based comments from four breakout groups, and (4) discussions during report-back sessions. Current evidence reviewed from the proceedings from the Workshop does not support an association between GH replacement and primary tumour or cancer recurrence. The effect of GH replacement on secondary neoplasia risk is minor compared to host- and tumour treatment-related factors. There is no evidence for an association between GH replacement and increased mortality from cancer amongst GH-deficient childhood cancer survivors. Patients with pituitary tumour or craniopharyngioma remnants receiving GH replacement do not need to be treated or monitored differently than those not receiving GH. GH replacement might be considered in GH-deficient adult cancer survivors in remission after careful individual risk/benefit analysis. In children with cancer predisposition syndromes, GH treatment is generally contraindicated but may be considered cautiously in select patients.
AKR1D1 knockout mice develop a sex-dependent metabolic phenotype
Authors: Gathercole Laura L , Nikolaou Nikolaos , Harris Shelley E , Arvaniti Anastasia , Poolman Toryn M , Hazlehurst Jonathan M , Kratschmar Denise V , Todorčević Marijana , Moolla Ahmad , Dempster Niall , Pink Ryan C , Saikali Michael F , Bentley Liz , Penning Trevor M , Ohlsson Claes , Cummins Carolyn L , Poutanen Matti , Odermatt Alex , Cox Roger D , Tomlinson Jeremy W
Published: March 2022

Steroid 5β-reductase (AKR1D1) plays important role in hepatic bile acid synthesis and glucocorticoid clearance. Bile acids and glucocorticoids are potent metabolic regulators, but whether AKR1D1 controls metabolic phenotype in vivo is unknown. Akr1d1–/– mice were generated on a C57BL/6 background. Liquid chromatography/mass spectrometry, metabolomic and transcriptomic approaches were used to determine effects on glucocorticoid and bile acid homeostasis. Metabolic phenotypes including body weight and composition, lipid homeostasis, glucose tolerance and insulin tolerance were evaluated. Molecular changes were assessed by RNA-Seq and Western blotting. Male Akr1d1–/– mice were challenged with a high fat diet (60% kcal from fat) for 20 weeks. Akr1d1–/– mice had a sex-specific metabolic phenotype. At 30 weeks of age, male, but not female, Akr1d1–/– mice were more insulin tolerant and had reduced lipid accumulation in the liver and adipose tissue yet had hypertriglyceridemia and increased intramuscular triacylglycerol. This phenotype was associated with sexually dimorphic changes in bile acid metabolism and composition but without overt effects on circulating glucocorticoid levels or glucocorticoid-regulated gene expression in the liver. Male Akr1d1–/– mice were not protected against diet-induced obesity and insulin resistance. In conclusion, this study shows that AKR1D1 controls bile acid homeostasis in vivo and that altering its activity can affect insulin tolerance and lipid homeostasis in a sex-dependent manner.
Mass Transmission Regularities in CdTe under Nanosecond Laser Irradiation
Authors: Levytskyi S.M. , Gnatyuk D.V. , Koba О.V.
Published: March 2022

In this paper, the mechanisms of mass transfer in the In/CdTe system under nanosecond pulsed laser irradiation, which are due to nonstationarity, nonequilibrium, physical and geometric nonlinearity, high speed and simultaneity of various physical processes; in particular, it is a change in the physical state of a solid body, the generation of elastic and shock waves, significant temperature and stress gradients, defect formation, diffusion, and others. The dominant mechanisms and regularities of indium mass transfer in CdTe under nanosecond laser irradiation of the In-CdTe structure have been established.
Low-temperature deposition of Cd1-xZnxTe layers by laser sputtering and their physical properties
Authors: Gromovyi Yu.S. , Rashkovetskyi L.V. , Plyatsko S.V.
Published: March 2022

CdZnTe films were grown by the method of modulated infrared laser deposition at a substrate temperature Tsub ≤ 1200C from appropriate sources on oriented single-crystal substrates Si, GaAs, InSb in the same technological conditions in one technological cycle. Surface morphology and spectra of low-temperature photoluminescence (T = 4.2K) in the energy range from 1.30 to 1.70 eV were studied. Luminescence spectra were analyzed and presented from three different energy regions: from 1.70 eV to 1.60 eV with exciton emission, from 1.60 eV to 1.55 eV by donor-acceptor transitions (DAP) and region A-centers from 1, 55 to 1.40 eV. The presence in the low-temperature photoluminescence spectra of free exciton bands, excitons on the neutral acceptor and neutral donor, and their phonon replicas on CdZnTe/InSb films testifies to the high structural perfection inherent in materials of detector quality with composition corresponding of the CdZnTe-target.
Interpretación, implementación y retos: Activación de la Alerta de Violencia de Género contra las Mujeres en México
Authors: Jiménez Valdez Elsa Ivete
Published: March 2022

El enfoque de derechos humanos se integra al análisis de la Alerta de Violencia de Género contra las Mujeres para situar los alcances de esta política pública dentro del marco de los compromisos adoptados por México a nivel internacional cuya observancia es obligatoria desde 2011. Posteriormente, se hace una revisión de la Ley General de Acceso de las Mujeres a una Vida Libre de Violencia y de su reglamento, para determinar los alcances de la Alerta, destacando la articulación con el concepto de violencia feminicida y con el de violencia institucional para precisar la interpretación de su objetivo y medidas de implementación. Se observa que la confección del diseño de este mecanismo ha sido terreno en disputa, lo que se revela en la presencia de aspectos que buscan restringir la activación de la Alerta dentro de su propia normativa. Posteriormente se revisa el proceso de declaración, implementación y seguimiento en los estados en los que la Alerta se solicitó para identificar aspectos que pueden modificarse y fortalecerse tanto en su normativa como en su interpretación e implementación, retomando estándares internacionales de derechos humanos, para procurar que esta política sea más eficaz para combatir la violencia feminicida.
La digitalización en el mundo del trabajo
Authors: Estrada Bruno
Published: March 2022

La digitalización es una automatización de las tareas productivas que tiene una característica diferencial sobre otros procesos similares ocurridos en el pasado. A diferencia de la robotización de las fábricas la digitalización se produce sobre todo en actividades de servicios con trabajadores de alta cualificación, ingenieros, abogados, médicos... La aplicación productiva de muchas nuevas tecnologías relacionadas con la Inteligencia Artificial (como la minería de datos, las estadísticas computacionales o las máquinas de sensores avanzados, como la visión) ha permitido diferenciar en puestos de trabajo de alta cualificación entre aquellas tareas que realmente incorporaban conocimiento y creatividad y otras que eran meras operaciones repetitivas sustituibles por programas informáticos. Es indudable que esa realidad incorpora un factor de incertidumbre sobre determinados grupos sociales que hasta ahora se consideraban a salvo de los procesos de automatización.
Kapčiamiestis Final Palaeolithic Site on the Bank of Baltoji Ančia River
Authors: Šatavičius Egidijus
Published: March 2022

The article analyzes the archaeological material of Kapčiamiestis Stone Age site, which was excavated in 2006–2007. A brief overview of the site’s history and heritage conservation and management works is provided. The article analyzes the geomorphology of this area and its development in the late ice age and the Holocene, describes in detail the stratigraphy of the study site and various erosive processes that have intensively affected it. Although the findings were not found in abundance during the research, it is an object that has existed for a short time and is characterized by the homogeneity of the assemblages. Based on the information gathered during the research and the typological-technological criteria of the flint inventory, the site dates back to the end of the Final Paleolithic (10th millennium BC) and belongs to the late Swiderian cultural tradition. It is currently the oldest excavated Stone Age site on the southernmost outskirt of Užnemunė Region.
6Li(10B,9Be)7Be reaction mechanisms. Structure and interaction of 9Be + 7Be nuclei
Authors:   Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine, Rudchik A.T. , Rudchik A.A. , Chepurnov O.O. , Rusek K. , Kemper K.W. , Koshchy E.I. , Mezhevych S.Yu. , Pirnak Val.M. , Ponkratenko O.A. , Stolarz A. , Siudak R. , Ilyin A.P. , Stepanenko Yu.M. , Uleshchenko V.V. , Shyrma Yu.O. ,   Heavy Ion Laboratory of Warsaw University, Warsaw, Poland,   Physics Department, Florida State University, Tallahassee, USA,   Cyclotron Institute, Texas A&M University, College Station, USA,   H. Niewodniczanski Institute of Nuclear Physics, Cracow, Poland
Published: March 2022

New experimental data of angular distributions for the 6Li(10B,9Be)7Be reaction were measured at the energy Elab(10B) = 51 MeV for the ground states of nuclei and excited 0.429 - 7.2 MeV states of 7Be. The reaction experimental data were analyzed within coupled-reaction-channels method (CRC) for many types of the nucleon and cluster transfers which spectroscopic amplitudes (factors) in the 9Be and 7Be nuclei were calculated using translation invariant shell model. The Woods - Saxon potential was used for CRC-calculations. The 6Li + 10B potential parameters were deduced before from the analysis of experimental data of 10B ions scattering by 6Li nuclei at the energy Elab(10B) = 51 MeV, and the 9Be + 7Be potential parameters for exit reaction channel were deduced from the CRC calculations fitting to the reaction experimental data. Thus, the information about the 9Be + 7Be optical potential, the basic reaction mechanisms and the 9Be and 7Be nuclei structures were deduced.
Evaluation of cross-section data for radionuclides used in positron emission tomography by effects of level density models using EMPIRE 3.2.2 code
Authors:   Department of Physics, College of Education, University of Salahaddin, Erbil, Iraq, Hasan Glara Fuad , Nury Edrees Muhammad-Tahir , Groppi Flavia ,   Department of Physics, University of Milan, Milan, Italy,   Accelerator and Superconductivity Laboratory (LASA), Department of Physics, University of Milan and the National Institute of Nuclear Physics (INFN), Segrate (MI), Italy
Published: March 2022

This work presents the evaluated results of cross-sections for natural chromium (natCr) with several nuclear reactions of natCr(d,x)52g,m+Mn, natCr(d,x)54Mn, natCr(d,x)51Cr, and natCr(d,x)48V using the statistical nuclear model EMPIRE 3.2.2 code with different level density models, for some radionuclides used in positron emission tomography. We compared the results to data sets found in literature, and data chosen from various sets of the electronic TENDL library.
Calculation of spectrum and neutron flux density in experimental channels of WWR-M reactor
Authors:   Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine, Diakov O.G. , Maliuk I.A. , Stratilat D.P. , Strilchuk M.V. , Tryshyn V.V.
Published: March 2022

A program for calculating the spectra and densities of neutron fluxes in the experimental channels of the research reactor WWR-M was developed. To do this, the reactor core was modeled. Irradiation of neutron activation detectors was performed. The obtained experimental rates of nuclear reactions are consistent with the calculated within 10 %.
Tritium in the hydro-ecosystem of the South-Ukrainian Nuclear Power Plant
Authors:   Petro Mohyla Black Sea National University, Mykolaiv, Ukraine, Grygorieva L.I. , Aleksieieva A.O. , Makarova O.V.
Published: March 2022

Based on the results of radioecological studies in the aquatic ecosystem of the South-Ukrainian Nuclear Power Plant region (SUNPP), the tritium content in technological reservoirs (cooling pond, biological pond of the cleaning station, splash pool) and adjacent surface and groundwater bodies were analyzed. It is shown that the average annual volumetric activity of tritium in the water of technological reservoirs of the SUNPP during 2014 - 2018 is kept at the level of 110 - 160 Bq/l, with a tendency to increase with an average annual rate of 12 - 13 Bq/l, which correlates with a decrease in the volume of blowdown water discharge from the cooling pond (about 8698 thousand m3 per yr). Higher levels of volumetric activity of tritium were registered in the water of technical wells - leakage markers in the technical system, which, moreover, are fed from the pools of cooling towers and spray units. The tritium content in the bioponds of the sewage system of the SUNPP decreased from more than 1000 Bq/l in the early 1990s to 100 - 130 Bq/l in 2017 - 2018, which led to a decrease in its level in the Trikratsky reservoir and should affect lowering its level in groundwater sources, which are located below the natural runoff. Taking into account the physicochemical properties of tritium and the conclusions of well-known scientists about the extremely rapid accumulation of tritium in the environment, the necessity of hydroecological monitoring of the tritium content in surface water bodies is substantiated, the water of which is used for irrigation of agricultural crops and which are hydrodynamically connected with the technological water bodies of the SUNPP, as well as sources of drinking water located downstream of the natural runoff from the technological reservoirs of the nuclear power plant.
Forecasting of 137Cs and 90Sr radionuclides intake into agricultural crops
Authors:   Ukrainian Institute of Agricultural Radiology of the National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine, Khomutinin Yu.V. , Zhurba M.A. , Levchuk S.E. , Kosarchuk O.V. , Polishchuk S.V. , Pavliuchenko V.V.
Published: March 2022

Maps of the 137Cs contamination of abandoned agricultural land in Narodychi district (Zhytomyr region) were built using data of the radiological survey. Statistical characteristics of the soil contamination with 137Cs, 90Sr, and plutonium isotopes (median, geometric standard deviation, upper limit for Р = 0.9) were estimated. Contamination of the local crops with 137Cs and 90Sr as well as the risk of exceeding permissible levels were estimated. Recommendations for the return of these lands for commercial use are provided.
Use of mathematical modeling for a comparative assessment of the sorption properties of natural and synthetic zeolites to cobalt
Authors:   National Science Center ", Levenets V.V. ,   Kharkiv Institute of Physics & Technology",   , Kharkiv, Ukraine, Lonin A.Yu. , Omelnik O.P. , Shchur A.O.
Published: March 2022

Comparison of the sorption capacity of natural zeolite (clinoptilolite) and synthetic zeolites (NaX and NaA) in relation to cobalt ions is done under dynamic conditions. The sorption capacity of zeolites in relation to cobalt was: for clinoptilolite - 59.00 mg/g; for zeolite NaX - 87.03 mg/g; for zeolite NaA - 73.00 mg/g. Based on the data obtained, mathematical modeling of sorption isotherms was carried out using the Langmuir equation, Chebyshev criterion, and the criterion of the least-squares method. The performed correlation of the factual and model results indicates that the considered models adequately reflect the sorption processes taking place in zeolites. The results obtained make it possible to use the considered models for prognostication of the behavior of zeolites with respect to cobalt.
EFFECTS OF KOH ON SOME BIOCHAR COMPONENTS FROM PYROLYZED FINE SUGAR BAGASSE (FSB)
Authors: Kien Pham Trung , Tai Le Huu , Tuyet Anh Le Huynh
Published: March 2022

In this paper the effect of mixing KOH on biochar components from pyrolyzed fine sugar bagasse (FSB) was studied. The fine sugar bagasse (FSB) was ground and mixed in batches with KOH at different weight ratios, such as 0, 20 and 40 %, to form 10-mm pellets, which were then thermal analyzed to identyfy the sutiable pyrolyze temperature. The FSB-derived biochars were characterized using DSC/TG, XRD, SEM/EDX to determine the effect of KOH content on the FSB-derived biochar. Experimen data shown that the obtain biochar posses different pore size vary from 0.5 ~ 1.0 µm. In case of using KOH, the silica from fine sugar bagasse can reacted with KOH, CO2 to form K2SiO3 and K2CO3 on the surface of biochar. Different amount of C can be capture by biochar by vary amount of KOH used. The treatment of biomass product can be used for rice hush, rice hush ash, and also sugarcane bagasse. These biochars can be used as a potential source for biochar-based power plant materials, or to remove toxic substances from wastewater. Based on the results of our study, we can recommend an activation of FSB-derived biochar for further use.
ELECTROCHEMICAL CO2 REDUCTION OF RHENIUM TRICARBONYL COMPLEX
Authors: Nguyen Ngoc Phuong , Nguyen Manh Tuan , Tran Thanh Trang , Tran Ngoc Anh , Nguyen Dang Nam , Dang Vinh Quang , Pham Duy Khanh , Nguyen Van Khiem
Published: March 2022

Carbon dioxide is considered as a primary reason for global climate change, thus CO2 needs to be urgently reduced. Catalytic conversion of CO2 into chemical fuels is one of the most crucial technologies that can address both global warming and the depletion of fossil fuels. Rhenium tricarbonyl complex [Re(bpy)(CO)3Cl] (bpy: 2,2’ bipyridine) possesses a great potential of capturing and highly selective converting CO2 to carbon monoxide. In the current study, we synthesized and characterized the structure of [Re(bpy)(CO)3Cl] by 1H NMR, ESI-MS, FITR, and PL spectroscopy. The electrochemical properties and the electrochemical CO2 reduction of [Re(bpy)(CO)3Cl] in the absence and presence of an electron donor source were carried out using cyclic voltammetric measurements. The cyclic voltammogram of [Re(bpy)(CO)3Cl] in N2-saturated DMF solution displayed one irreversible reduction wave at -1.33 V. [Re(bpy)(CO)3Cl] expressed its electrocatalytic behavior in CO2 atmosphere by the enhancement of the cathodic current density. The current increased approximately twofold in CO2-saturated DMF solution (from 0.15 to 0.32 mA/cm2) and more enhancement when adding TEOA solvent. With the presence of an electron donor, the CO2 reduction efficiency of [Re(bpy)(CO)3Cl] was improved and represented by an approximately fourfold increase in cathodic current from 0.32 to 1.12 mA/cm2. One-electron reduced species of [Re(bpy)(CO)3Cl] observed at 1.33 V in N2 and CO2-saturated electrolytes contributed to the reaction with CO2.
RESEARCH ON MANUFACTURING HIGH ALUMINA POROUS CERAMIC SHEETS FOR KILN LINING MATERIALS
Authors: Nguyen Thanh Dong , Vo Mai Van
Published: March 2022

High alumina porous ceramic sheets with Al2O3 content ≥ 95 wt.% have many excellent thermal properties such as high thermal resistance, good insulation and low shrinkage. Thus, they are very suited for a kiln working at high temperature. Using combustible additive to create porous structure for materials is a method which has a lot of benefits such as being simple and easy to adjust pore content. This study has designed a raw meal of 92.5 wt.%  alumina powder and 7.5 wt.% kaolin (A mixture), selected sawdust (B) as a combustible additive with a volume ratio of A/B = 55/45. The sample after pre-sintering at 1300 oC has a volumetric density of 1.22 g/cm3, shrinkage of 1.36 %, and a certain level of sintering. This results in a certain mechanical strength with cold compressive strength of 10.05 MPa, which is convenient for transport as well as sawing, cutting and assembling into the kiln lining. After the secondary heating at 1650 oC, its shrinkage increased slightly by approximately 1 %, volumetric density is 1.29 g/cm3, porosity is 55.49 % and cold compressive strength is 10.58 MPa. The result shows that it is feasible to fabricate a large size of high alumina porous ceramic sheets for high temperature kiln lining materials.
SYNTHESIS CO(BENZENESULFONAMIDE SERINOL-LACTIDE) FOR PREPARATION OF THE PH-SENSITIVE HYDROGEL
Authors: Linh Nguyen Vu Viet , Dai Phu Huynh
Published: March 2022

The pH-sensitive hydrogel based on polyurethanes is one of the most popular biodegradable copolymers that have been used in drug carrier applications. Polyurethanes containing sulfonamide groups exhibit sensitivity to changes in pH environment because they can receive and donate cationic hydrogens. In this research, the co(benzenesulfonamide serinol-lactide), named Co(BSSe-LA), was synthesized based on the ring-opening reaction of lactide and hydroxyl groups of benzenesulfonamide serinol (BSSe). The influence of reaction time and content (wt.%) of stannous octoate catalyst on the reaction efficiency of Co(BSSe-LA) was investigated. Proton nuclear magnetic resonance (H1NMR) and Fourier transform infrared spectroscopy (FTIR) analyses confirmed the successful formation of BSSe and Co(BSSe-LA). Besides, the results show that the reaction efficiency of Co(BSSe-LA) increased when the reaction time and the stannous octoate concentration increased. The reaction efficiency of Co(BSSe-LA) was 33.67 % with reaction parameters including catalyst content of 1.2 wt.%, reaction time of 24 hours and BSSe/LA molar ratio of 1/2. Co(BSSe-LA) was prepared for polymerization of polyurethane and fabrication of pH-sensitive hydrogel. Furthermore, the product can be decomposed easily in aqueous medium thanks to the ester group of lactide. This hydrogel copolymer may be potential as an injectable hydrogel for the controllable drug and protein delivery system.
GRANULATED BLAST FURNACE SLAG AS A SUPPLEMENT ENHANCING FIRE RESISTANCE OF PORTLAND CEMENT MORTAR
Authors: Le Hanh Thi Duy , Pham Le Duy
Published: March 2022

Using steel slag in the cement industry has been considered a green recycling solution to the solid waste problem. Granulated blast furnace slag (GBFS), in fact, is used as an additive to counteract the sulfate attack of Portland cement; however, its ability to undergo fire or heat exposure has not been highlighted yet. Therefore, this study focuses on compressive strength behaviour at high temperature along with workability of cement paste of cement containing GBFS. Here, a set of blended mixture prepared with OPC was replaced by GBFS at 10, 20, 30, 40 wt.%. Setting time of pure OPC and blended OPC and GBFS was carried out to evaluate workability of all mixtures. After 28 days of curing, compressive strength of samples exposed  to heat at 200, 400 and 600 °C was measured. Along with that, the mass loss of the sample to predict thermal resistance was analyzed by thermogravimetric analysis (TGA); moreover, microstructure of hardened samples in terms of mineral composition, distribution was analyzed by X-ray diffraction (XRD) and Scanning electron microscopy (SEM). Results of the conducted study showed that GBFS addition into OPC could enhance fire resistance through the slight increase in compressive strength compared to the OPC one at 600 °C and the mass loss; moreover, the blended cement containing different amount of GBFS maintain workability of cement paste.
Fraturando o locus - a influência de María Lugones no Brasil
Authors: Veiga Ana Maria
Published: March 2022

Resumo: Este artigo busca mapear a influência de María Lugones no Brasil, que não cessa de crescer, mesmo após a sua morte, por meio de diálogos repletos de críticas, ou crises, que seus próprios conceitos e teorias provocam. Ao entender que Lugones fez da sua obra o inesgotável, alcançado os feminismos brasileiros e atendendo às demandas da academia e dos movimentos sociais, a metodologia aqui proposta vai em busca de trabalhos acadêmicos que discutiram em profundidade seus principais conceitos ou que os aplicaram em pesquisas específicas. Como resultado da pesquisa, Lugones é percebida como sujeita-teoria-chave para os feminismos brasileiros contemporâneos que abarcam decolonialidade e interseccionalidade, fraturando o locus das linhas centrais, evocando ativismos e utopias também no Brasil.
Estratégias e Visões Familiares na Escolarização de Jovens Atletas
Authors: Correia Carlus Augustus Jourand , Soares David Gonçalves , Soares Antonio Jorge Gonçalves
Published: March 2022

RESUMO Estratégias e Visões Familiares na Escolarização de Jovens Atletas1. O artigo descreve as estratégias de escolarização utilizadas pelas famílias de jovens atletas do futebol e como estas se relacionam com a instituição escolar. Os resultados mostram que as famílias e os atletas secundarizam a escolarização em benefício do futebol. Para isso, buscam estratégias e instituições de ensino que flexibilizam as obrigações escolares. Suas ações partem de uma ideia de que a escolarização possui um tempo mais elástico do que a profissionalização no esporte. Tal concepção cria tensões e estigmas sobre os atletas e suas famílias na escola e evidenciam que, no plano institucional, tanto escola quanto clube estão pouco estruturados para as demandas de uma formação híbrida de estudantes-atletas.
Crianças e Arte Contemporânea na Escola e em Espaços Expositivos
Authors: Orofino Karin Zapelini , Fantin Monica
Published: March 2022

RESUMO Crianças e Arte Contemporânea na Escola e em Espaços Expositivos. O texto reflete sobre a relação entre crianças e arte contemporânea na escola e em espaços expositivos. O estudo parte de uma pesquisa de doutorado de abordagem qualitativa fundamentada em um aporte teórico-conceitual que correlaciona os campos de estudo da arte contemporânea, da infância e da educação, com destaque à relação entre interatividade, culturas infantis, múltiplas linguagens. A metodologia envolveu uma intervenção didática com crianças dos anos iniciais de uma escola pública e o acompanhamento de crianças a uma exposição. As particularidades dos espaços na experiência da criança com as propostas artísticas contemporâneas sugerem diferentes possibilidades de encontros com a arte e sinalizam alguns desafios da mediação nesta relação.
Buckwheat seed quality and pathogenicity of Fusarium spp. in plants
Authors: Zini Priscila Barbieri , Poletto Tales , Fantinel Vinícius Spolaor , Andrade Nariane de , Nunes Ubirajara Russi , Muniz Marlove de Fátima Brião , Jacques Rodrigo Josemar Seminoti
Published: March 2022

Abstract: Buckwheat is a species with great economic and production potential, which has gained increasing importance. This study aimed to determine the physical, physiological, and sanitary quality of samples from seed lots, and to evaluate the pathogenicity of Fusarium spp. in buckwheat plants. Physical and physiological quality was evaluated by the thousand-seed weight, moisture content, germination test (5th and 7th days), seedling length, and seedling dry mass, while sanitary quality was determined by the health test on filter paper, with the seeds subjected to asepsis and without asepsis. Isolates of Fusarium spp. were obtained from symptomatic seedlings in the paper roll germination test. To identify and characterize fungal isolates, morphological and molecular approaches were used. Pathogenicity was determined on healthy plants in a controlled environment. The lots showed high physiological quality in the germination evaluation (5th and 7th days). There was a high incidence of Fusarium spp. in all lots, which can be reduced with seed asepsis. The isolates were identified as Fusarium incarnatum-equiseti species complex, and were pathogenic to buckwheat plants.
O DISPOSITIVO DE NECRODOCÊNCIA: A MORTE DO SUJEITO DO CONHECIMENTO
Authors: SILVA JOSIELE OLIVEIRA DA , LOGUERCIO ROCHELE
Published: March 2022

O presente trabalho tem como objetivo construir teoricamente o conceito de Dispositivo de Necrodocência a partir das noções de Dispositivo em Michel Foucault (2015-2017) e da Necropolítica de Aquille Mbembe (2018). A partir de uma discussão acerca dos modos como as políticas públicas são produzidas (e operam) em uma racionalidade neoliberal, tentamos compreender como alguns elementos referentes à educação se (inter)relacionam, na atualidade, constituindo a morte do professor como sujeito do conhecimento. A fim de construir teoricamente a noção de Dispositivo de Necrodocência em um determinado contexto histórico, trazemos as conceituações de biopolítica, biopoder e prática em Michel Foucault. Entendemos por Dispositivo de Necrodocência a articulação estratégica entre diferentes elementos como as políticas públicas e curriculares, as produções midiáticas, as relações interpessoais inerentes ao trabalho docente, a desestruturação sistemática das instituições de ensino, os movimentos neoconservadores que atingem a docência, produzindo modos de ser professor cada vez mais afastados da produção de conhecimento.
UN ACERCAMIENTO A LA PRODUCCIÓN CERÁMICA EN YAXCHILÁN DURANTE EL CLÁSICO TARDÍO A TRAVÉS DE DOS ESTUDIOS DE CASO
Authors: Padilla Rafael Fierro
Published: March 2022

En el presente trabajo se aborda el tema de la producción alfarera en las Tierras Bajas Mayas durante el Clásico Tardío (600-900 d.C.), desde la perspectiva de Yaxchilán. A partir de una muestra de vasijas completas procedentes de contextos funerarios elitistas del sitio, se evalúa si las vasijas que abastecían a la élite gobernante se producían en talleres especializados adscritos al palacio o en los de artesanos independientes que laboraban a tiempo parcial. Teniendo en consideración estudios previos tanto tipológicos como de pastas para determinar cuál es el material que acusa una producción local, se llevaron a cabo análisis modales de formas, medidas y motivos decorativos presentes en las vasijas con la intención de determinar el nivel de estandarización y así evaluar el grado de especialización en la producción; aunado a lo anterior el estudio también atendió a un atributo adicional, el grado de desgaste por uso que muestra cada ejemplar, pues dicho aspecto permite obtener información sobre su costo de reemplazo. El material ha permitido obtener datos que sugieren que la cerámica que consumió la élite del sitio durante dicho periodo fue manufacturada en talleres de artesanos de tiempo parcial.
Testing Bank Resiliency Through Time
Authors: Correia Sergio , Seay Matthew P. , Vojtech Cindy M.
Published: March 2022

A resilient banking system meets the demands of households and businesses for financial services during both benign and severe macroeconomic and financial conditions. Banks' ability to weather severe macroeconomic shocks, and their willingness to continue providing financial services, depends on their levels of capital, balance sheet exposures, and ability to generate earnings. This note uses the Forward-Looking Analysis of Risk Events (FLARE) stress testing model to evaluate the resiliency of the banking system by consistently applying severe macroeconomic and financial shocks each quarter between 2014:Q1 and 2021:Q3.
Matematik Öğretmen Adaylarının Geometrik Cisimlere Yönelik Tanım ve Çizimlerinin İncelenmesi
Authors: AKKAŞ Elif Nur , GÜNDOĞDU ALAYLI Funda
Published: March 2022

Bu çalışmanın amacı, matematik öğretmen adaylarının geometrik cisimlere yönelik tanım ve çizimlerinin incelenmesidir. Literatürde geometrik cisimlere yönelik öğrenci, öğretmen adayı ve öğretmenlerin tanım ve imajlarına yönelik az sayıda çalışma olduğu görülmektedir. Bu çalışmalarda, tüm geometrik cisimleri tek tek ele alıp, gerek nasıl tanımlandıklarını, gerek çizim aşamalarını birlikte değerlendiren çalışmaya rastlanılmamıştır. Bu çalışma ile literatürdeki bu boşluğun doldurulacağı düşünülmektedir. Çalışmanın katılımcılarını, Türkiye’de bir eğitim fakültesinde öğrenim gören, ilköğretim matematik öğretmenliği 2. sınıflardan toplam 48 öğretmen adayı oluşturmaktadır. Araştırmada veriler, açık uçlu sorular içeren anket formu yardımı ile toplanmıştır. Bu form hazırlanırken literatürden yardım alınmış ve öğretmen adaylarının geometrik cisimlere yönelik tanım ve çizimlerindeki bilgi ve düşüncelerini açığa çıkarmak amacıyla hazırlanmıştır. Toplanan verilerin analizinde içerik analizi tekniği kullanılmıştır. Veriler tanım ve çizim verileri olarak iki grupta analiz edilmiştir. Çalışma sonuçlarına göre, geometrik cisim tanımlamalarının % 47 gibi büyük bir oranı “yanlış tanımlama” kategorisinde yer almaktadır. En çok doğru tanımlama yapılan geometrik cisim “küp” olmuştur, cisim ayrıtlarının kenar olarak ifade edildiği, cisimlerin üç boyutlu değil de iki boyutlu bir şekil olarak algılandığı belirlenmiştir. Öğretmen adaylarının piramit yerine üçgen prizma çizdikleri ve yapılan çizimlerde notasyona dikkat edilmediği görülmüştür. Ayrıca geometrik cisimleri tanımlamada yaşanan zorlukların çizimlere de yansıdığı ve bu süreçte kavram karmaşası yaşandığı tespit edilmiştir.