bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of emissions from forest fires on the morphofunctional state of reproductive system of white rats
Authors: Novikov M. A. 
Published: September 2022

Introduction. At present, considering active participation of people in the elimination of wildfires, the study of the effects of smoke on the reproductive system is an urgent scientific problem.Materials and methods. Sexually mature outbred male rats were exposed to a daily four-hour inhalation exposure to smoke for one month. Immediately after the end of the exposure, some of the animals were removed from the experiment, and some were left to survive for two months. The study on testicular samples included counting the total number of spermatogonia, the number of tubules with desquamated epithelium, as well as determining the spermatogenesis index and the number of Leydig cells.Results. The effect of forest fire smoke on the reproductive system of model animals (outbred laboratory rats, males) was characterized by a decrease in the spermatogenesis index with a simultaneous decrease in the percentage of spermatogonia and the number of Leydig interstitial cells. The indices of the reproductive system of animals left for survival did not differ from the control values.Discussion. The results of this study suggest that prolonged exposure to combustion products released during a forest fire negatively affects the reproductive function of male laboratory rats examined immediately after the end of the exposure. After the course of the standard cycle of spertatogenesis, the indicators characterizing the development of sperm and the generation of male sex hormones are restored to normal, which indicates a high plasticity of the male reproductive system in response to the adverse environmental factor – smoke of forest fires.
Hormonal characteristics of androgen status and their relationship with the anthropometric and metabolic parameter in men depending on the severity of hypertension
Authors: Yankovskaya S. V. , Kuzminova O. I. , Pinkhasov B. B. , Lutov Yu. V. , Selyatitskaya V. G. 
Published: September 2022

Background. According to the literature data, long-term and poorly controlled hypertension (HTN) leads to target organs damage, and in some cases, to the development of associated diseases, the severity of which in men may be partly due to the characteristics of the androgenic status.The aim: to reveal the features of hormonal indicators of androgen status and their relationship with the anthropometric and metabolic characteristics of the therapeutic clinic male patients, depending on the severity of HTN.Materials and methods. 296 men aged 59,0 [54,0; 65,0] years with confirmed HTN were examined. All study participants in the morning on an empty stomach underwent anthropometry, determination of metabolic and androgenic status, and assessment of comorbid burden. Depending on the severity of hypertension, all patients were divided into two groups (G): G1 (n = 134) – patients with hypertension without a history of coronary artery disease or stroke; G2 (n = 162) – patients with hypertension with a history of ischemic heart disease (IHD) and/or stroke.Results. In male patients of G2 with severe HTN, a decrease in the levels of free testosterone (FT) and, to a greater extent, dehydroepiandrosterone sulfate (DHEA-S), as well as total cholesterol, high and low density lipoproteins, was revealed. The correlation analysis performed revealed statistically significant negative correlations between the levels of total testosterone (TT) and FT with body mass index, the value of the ratio of waist circumference to hips, only the level of FT – with the presence of IHD, chronic heart failure (CHF), disorders of carbohydrate metabolism and abdominal type of fat distribution, and the level of DHEA-S – with the presence of IHD and CHF.Conclusion. A decrease in FT and DHEA-S is associated with early progression of atherosclerosis and the risk of developing HTN-associated cardiovascular events, which can aggravate the course of HTN.
Prerenal kidney damage in patients with local cold injury
Authors: Mikhailichenko M. M. , Shapovalov K. G. , Mudrov V. A. , Mikhaylichenko S. I. , Mikhaylichenko A. V. , Hanina Yu. S. , Mikhailichenko Yu. V. 
Published: September 2022

Introduction. Important links in the pathogenesis of cold alterations are vascular damage and powerful systemic alterations. The presence of premorbid pathology and the duration of the wound process negatively affects to the function of most organs and systems, including the kidneys. Renal insufficiency in patients with frostbite develops in the acute period of cold damage. This is indicated by a decrease in the amount of urine and an increase in creatinine levels in victims with frostbite. In this regard, the identification and analysis of the dynamics of new markers of renal dysfunction in patients with frostbite is promising both from a scientific and practical point of view.The aim. To investigate the dynamics of changes in serum creatinine, NGAL and cystatin C levels in patients with local cold trauma.Materials and methods. The study included 60 patients with frostbite of the III–IV degree of distal limb segments. The study was carried out depending on the volume of the lesion and the timing from the moment of cryoalteration.The results of the study. In patients with grade III–IV frostbite, an increase in the level of lipocalin and serum creatinine was detected in the blood. The concentration of lipocalin and serum creatinine is directly proportional to the volume of cold-affected tissues. Indicators of lipocalin and serum creatinine decrease in the late stages of cryopreservation. The level of cystatin C significantly decreases during all periods of frostbite; the concentration of the latter does not depend on the severity of cryopreservation.
Comprehensive analysis of the results of surgical treatment of patients with degenerative diseases of the lumbar spine using rigid fixation systems
Authors: Krivoschein A. E. , Konev V. P. , Kolesov S. V. , Erofeev S. A. , Moskovskiy S. N. , Byvaltsev V. A. 
Published: September 2022

Introduction. According to the literature, the development of adjacent-level syndrome 10 years after posterior rigid stabilization is noted in 6.7–80 % of patients, of which 24 % require revision surgery.The aim: to conduct a comprehensive analysis of the results of surgical treatment of patients with degenerative diseases of the lumbar spine using rigid fixation systems.Materials and methods. A multicenter retrospective study of the results of surgical treatment of 268 patients with degenerative-dystrophic diseases of the lumbar spine, who underwent mono- or bisegmental decompression-stabilizing intervention with the implementation of the TLIF (Transforaminal Lumbar Interbody Fusion) technique and open transpedicular rigid fixation, was conducted. The study included radiography, MRI and CT (in 2-energy mode) of intervertebral discs and isolated facet degeneration of the upper adjacent level.Results and discussion. The combination of the initial degeneration of the adjacent spinal motion segment in the form of disc degeneration of grade III and higher according to Pfirrmann with threshold values of the density of the outer cartilaginous plate from 161.7 ± 18.8 to 164.8 ± 14.2 HU, the density of the outer facet – from 702.43 ± 12.3 to 713.65 ± 13.6 HU and the density of the inner facet – from 580.5 ± 11.6 to 582.1 ± 15.1 HU, as well as with signs of segmental instability of the adjacent segment can be considered as risk factors for the development of its degeneration. With the progression of degeneration of the upper intervertebral disc, revision interventions were performed within 12–60 months after surgery.Conclusion. Bisegmental stabilization with signs of initial degeneration in the intervertebral disc and facet joints in the upper segment has proven its clinical and instrumental effectiveness in the period of 36 months and reduces the risks of developing degenerative disease of the adjacent disc.
ANALISIS KELAYAKAN UNIT USAHA PENGELOLAAN SAMPAH PADA BUMDESA "SIDO MAKMUR", DESA - KECAMATAN GETASAN, KABUPATEN SEMARANG
Authors: Istiyani Ambar , Lisaputra Prasetyo Suryahadi Mahendra 
Published: September 2022

Based on Law No. 6 of 2014 concerning the Village, villages can form a business entity to improve the welfare of their people. The Village Owned Enterprise (BUM Desa) Sido Makmur in Getasan Village, Semarang Regency, has some business units, including the Waste Management Business Unit. This unit has two stages of activities: Phase I is Waste Collection, and Phase II is Waste Segregation which includes converting the waste into goods with economic value. The Phase I program has been running since 2020 in one of the hamlets, and Phase II will soon be implemented. However, the BUM Desa Sido Makmur has never conducted a feasibility study on this business unit. A feasibility study can help BUM Desa understand whether a business can be continued or not and provide input for future business development. This article analysis the feasibility of the Waste Management Business Unit at BUM Desa Sido Makmur in terms of Legal, Market and Marketing, Human Resource Management, Technical and Technology, Environment, and Financial Aspects. Primary and secondary data in qualitative and quantitative data were analyzed using business feasibility analysis. The study results show that the Waste Management Business Unit in BUM Desa Sido Makmur is feasible. However, for this business unit to develop further, Phase II of waste management, namely converting waste into goods with economic value, must be done immediately by training village communities. In addition, it is necessary to expand business units' operations, not only in one hamlet but also in other hamlets.
Upscaling firm performance through organizational creativity in the Nigeria fintech industry
Authors: Ndudi Francis E. , Ononye Uzoma H. 
Published: September 2022

The study unscaled technically, firm performance through effective organizational creativity with two objectives of organizational climate and leadership indices. Hypotheses were raised and statistically tested using descriptive and inferential statistics with a sample size of 375 determined using Krecee and Morgan's position. Findings revealed a significant relationship between both predictor variables of organizational climate and leadership indices that affect firm performance with the obvious statistical outcome. The study recommended that the socio-environmental context of the workplace should be equipped while Leaders and decision makers should effectively communicate the set vision.
COMPARING THE ORGANIZATIONAL INFRASTRUCTURE FOR INSTRUCTIONAL LEADERSHIP IN NATURAL SCIENCES TEACHING AMONG FORMERLY SEGREGATED SCHOOLS IN GAUTENG
Authors: Malinga Cynthia B , Jita Loyiso C , Bada Abiodun A 
Published: September 2022

School organizational conditions influence teaching and learning. Instructional leadership is context-based, and the practices of the leader are contingent upon the school’s organizational context. In this paper, we examine how different schools create the organizational infrastructure for teaching and learning natural sciences (NS) and the adequacy thereof in providing a supportive environment for the teachers and students in the subject. Using a mixed methods approach, we compare the extent to which the organizational infrastructures in schools enable and/or constrain NS instruction and its leadership. We use survey data on NS teachers and their heads of department on school conditions and infrastructures, management and administrative processes, and subject leadership practices. A total of 77 schools and 15 participants responded to the questionnaire and participated in the interview/observation respectively, from 4 districts in the Gauteng province of South Africa. The data obtained were analyzed using descriptive statistics and content analysis. The findings showed that schools sharing similar socio-economic contexts have similar organizational infrastructures and arrangements around which the core work of teaching and learning was organized. The study concludes that school organizational infrastructures (shaped by contexts) may either promote or constrain effective instructional leadership for NS. We recommend that schools need to review their organizational arrangements and infrastructures to support instructional leadership and enhance their capacity to strengthen NS instruction more effectively.
PENENTUAN NILAI SUSEPTIBILITAS DAN UKURAN PARTIKEL MAGNETIK PASIR ALAM LOGAS KABUPATEN KUANTAN SINGINGI MENGGUNAKAN VARIASI UKURAN BALL MILLING
Authors: Royka Azura , Amiruddin Erwin 
Published: September 2022

Magnetic properties and morphology of natural sand has been carried out in Logas Village, Kuantan Singingi Regency have been determined. Iron sand samples were processed using iron sand separator (ISS) prior to ball milling for separating between magnetic and non magnetic particles. The product of ISS was milled for 90 hours using ball milling first step method with milling ball size of 1.5 cm. Themagnetic and non-magnetic particles of ball milling products were separated using Neodymium Iron Boron (NdFeB) magnet. The product of ball milling first step then was milled for another 30 hours with milling ball size of 0.5 cm and 0.7 cm. The susceptibility and mass susceptibility were determined based on magnetic induction of a selenoid measured using Probe Magnetic Pasco PS-2162. The composition of Logas natural sand was measured using x-ray fluorescence spectroscopy (XRF). The morphology of the magnetic particles are determined using scanning electron microscope (SEM). The results showed that the particle size of natural sand for 90 hours + 30 hours milling displays the particle sizes from 100 µm to 800 µm. As for the particle size of the samples synthesized with 90 hours + 30 hours for 0.7 cm milling ball size, the particles are almost evenly distributed, which is about 5 µm to 100 µm. The content of Fe and Ti in the sample has increased while for Si has decreased. Mass susceptibility increases with increasing ball milling time and ball milling size.
PENGUKURAN KETINGGIAN MUKA AIR PADA LAHAN GAMBUT MEMPERGUNAKAN SENSOR ULTRASONIK HCSR-04
Authors: Novianti Novianti , Umar Lazuardi 
Published: September 2022

Indonesia is a country that has an area of + 14 million hectares of peatlands. Utilization of Indonesia's peatlands is used in various sectors such as plantation and agriculture which increase income in the economic sector so the importance of peatland management. Measurement of the water level in peat is very necessary to maintain the stability of the TMA (water level) of the peat, which is 40 cm. This study uses the ultrasonic sensor HCSR-04 which has a resolution of 0.3 cm with a measurement range of 2 cm to 4 m and is coupled with the Arduino Unowhich is open source so that measurements can be carried out directly using the serial monitor on Arduino-uno. The ultrasonic sensorHCSR-04 is made on a prototype that will be used in TMA measurements both in the field and on a laboratory scale. The measurements show very accurately results with measurement errors 1.2 % with measurements from 100 – 500 mm. measurement error for water temperature variations of 30 ºC, 35 ºC,and 40 ºC is 1.8%, 6% and than 10%.
Prospects of Trademark Registration To Recover The Economic of MSMEs Actors in Service Sector after The Pandemic
Authors: Jaya Dedi , Disemadi Hari Sutra 
Published: September 2022

MSMEs are businesses that can be run by all people who want to start a business with small capital. Q, MSMEs have strategic role in building Indonesian economy. However, the growth of MSMEs is experiencing a slump due to COVID-19. On March 11, 2020, WHO as a legal world health organization declared the COVID-19 as a pandemic. MSMEs have become solution to increase the welfare of Indonesian citizen, since the issue of welfare itself is not an easy to realize. To support MSMEs in increasing the welfare, it is necessary for the government to take action in pushing MSME actors to registrate their trademarks as part of intellectual property which is very important in the economic recovery. Based on these problems, this study uses non-doctrinal research methods to examine trademark regulation in Indonesia, the awareness of MSME actors on the importance of trademark protection, and the relation of trademark registration as an effort to recover the MSME economy after the pandemic. The result of this study indicates that the regulation regarding trademark protection is contained in Indonesian Trademark & Geographical Indication Law. Additionally, the study reveals that there are several MSME actors who aware that a brand must be protected because it is an intellectual property, but there are also MSME actors who do not aware about this issue. In fact, the urgency of trademark registration is considered to be the part of efforts in recovering the economy of MSMEs after the COVID-19 pandemic, this is because after registering the trademark, it automatically has economic value.
Development of Cold Gas Sprayed Coatings
Authors: Voyer J. , Stoltenhoff T. , Kreye H. 
Published: September 2022

Abstract
By cold spraying, coatings are produced without significant heating of the spray powder and the substrate material. The powder particles are accelerated in a preheated gas stream to velocities of more than 500 m/s without melting and form a dense and tightly bonded coating. Bonding occurs only due to plastic deformation and the heat created thereby. Due to the absence of melting of the powder particles during cold spraying, several negative phenomenon, such as oxidation and phase transformations associated with thermal spray processes, such as HVOF, arc, flame and plasma spray can be minimized or avoided. This paper presents an overview of cold spray process developments and of coating characteristics. A variety of metallic powders having a low or high melting temperature including Cu, Al, Ti as well as alloys were sprayed onto different substrate materials, and the microstructure and properties of the coatings were evaluated.
Automated Cold Spray System: Description of Equipment and Performance Data
Authors: Blose R.E. , Roemer T.J. , Mayer A.J. , Beatty D.E. , Papyrin A.N. 
Published: September 2022

Abstract
Cold Spray is a rapidly emerging technology with numerous applications that have not yet been realized. With the growth of this technology there will be a demand for laboratory systems to perform applications research and development as well as high volume production machines for specific industrial applications. The recent focus of Cold Spray equipment development has been to perfect nozzles and gun assemblies, gas heaters, gas flow, powder feed, and process control. This paper describes the automated equipment that is available in the market and presents some performance data. This equipment will serve as the prototype for the industrial equipment that will soon be designed and installed in industry for commercial production applications.
Helium Recovery: Design Considerations for Cold Spray Systems
Authors: Lauricella Frank , Jaynes Scot 
Published: September 2022

Abstract
Experience with Cold Spray process requirements and equipment selection can impact process gas economics for Cold Spray systems. Cold Spray processes with helium, as the process gas, require helium recovery for optimized economics. In most cases, acceptable process economics require a helium recovery system to achieve greater than 95% overall recovery. Design of a helium recovery system with substantial overall helium recovery demands an understanding of the entire Cold Spray process and specifics about the product to be manufactured.
Intermediate Temperature SOFC Based on Fully Integrated Plasma Sprayed Components
Authors: Ma X.Q. , Hui S. , Zhang H. , Dai J. , Roth J. , Xiao T.D. , Reisner D.E. 
Published: September 2022

Abstract
This work addresses the fabrication of membrane-type SOFCs, operating at an intermediate temperature using all components fabricated by plasma spray technology, and to evaluate the performance of the SOFC single unit at a temperature range of 500-800 0C. Single cells composed of a LaSrMnO3 (“LSM”) cathode, LaSrGaMgO3 (“LSGM”) electrolyte and a Ni/YSZ anode, were fabricated in successive atmospheric plasma spraying processes. Plasma spraying processes have been optimized and tailored to each layer in order to achieve a high porosity cathode or anode layer as well as a high density electrolyte layer. Major effort has been devoted to the production of the LSGM electrolyte film with high density and free-cracking. Electrochemical impedance spectroscopy was used to investigate the conductivity of the electrode layers and particularly the resistance of the electrolyte layer. It was revealed that the heat treatment had a great influence on the specific conductivity of the sprayed electrolyte layer, and that the specific conductivity of the heat-treated one was dramatically increased to the same magnitude as that of a sintered LSGM pellet. The experimental results have demonstrated that the plasma spray process has great potential for the integrated fabrication of the medium temperature SOFC units.
Abrasion and Sliding Wear of Nanostructured Ceramic Coatings
Authors: Leblanc L. 
Published: September 2022

Abstract
PyroGenesis Inc. has been conducting a program on the development of coatings prepared from nanostructured ceramic and cermet materials using atmospheric (APS), vacuum plasma spraying (VPS), and high velocity oxy-fuel spraying (HVOF). In the work presented in this paper, APS and VPS coatings from nanostructured or sub-micron Al2O3- 13TiO2, Cr2O3-5SiO2-3TiO2, and TiO2 feedstock materials were developed and optimized for abrasion wear resistance. They were subsequently tested for sliding wear resistance. The resulting wear properties are discussed in terms of coating microstructure, and compared to those obtained from conventional microstructured feed materials. It is found that the starting powder and the spraying conditions play a major role in the resulting coating characteristics. VPS applied coatings from nanostructured powder were found to generally offer the best performance, most notably under sliding wear conditions.
Abrasion Wear Behaviour of Plasma and HVOF Sprayed Al2O3 SiC Nanocomposite Coatings
Authors: Dearnley P.A. , Panagopoulos K. 
Published: September 2022

Abstract
The present work describes abrasion wear tests that were carried out on low carbon steel test wheels coated with a series of plasma sprayed and HVOF sprayed Al2O3-SiC coatings with varying SiC contents. These were compared to a pure Al2O3 coating applied by HVOF and to uncoated steel. The HVOF sprayed coatings exhibited consistently superior abrasion wear resistance compared to plasma sprayed coatings of equivalent composition and uncoated steel. Overall, the HVOF Al2O3-10%SiC nanocomposite coating showed the best abrasion resistance of all the coatings tested. They were worn very slowly by a micro-abrasion process. The poor performance of the plasma sprayed coatings was attributed to a low cohesive strength which made them particularly vulnerable to grain pull-out.