bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recommendations for reducing sanding process in water wells
Authors: Akhmedov Ikromali , Mirkhasilova Zulfiya , Yakubov Murat , Khojiev Aliakbar , Irmuhamedova Lyudmila , Mirkhosilova Madina 
Published: August 2023

The history of vertical drainage wells began in 1923 in the United States of America and since 1950 in Uzbekistan. Such scientific researchers as N. Reshetkina, Kh. Yakubov, A Umarov, Z. Pushkarev, N. Nasonov, I. Akhmedov, and other scientists worked on designing and constructing vertical drainage wells. The study aims to develop recommendations for improving the sustainable operation of vertical drainage wells based on their design and construction, considering natural and economic conditions. The relevance of the work lies in the fact that stable operation of wells without sanding will provide: an increase in the duration of good operation without repair, an improvement in water supply in the reclaimed area, drainage of the area suspended on the well, and an increase in economic efficiency.The place of research work is the Syrdarya and Fergana regions of the Republic of Uzbekistan, as well as the Kyzylorda region of the Republic of Kazakhstan. The design of vertical drainage wells differs significantly from water wells (for water supply) in that vertical drainage wells are drilled with a large diameter (800-1260mm) and equipped with gravel filters. They have a shallow depth (35-80m) and large diameters of the filter frame and casing pipe (300-426mm), which significantly affect their costs and determine the territory's drainage area, which is the main task of this type of well. Such wells are operated in the study areas. The article presents data that is the basis for developing recommendations for improving the sustainable operation of a vertical drainage well. Recommendations are given to eliminate the problems of vertical drainage wells.
Application of the method of direct mathematical modeling to diamond-shaped contact lines
Authors: Amirov Sulton , Karimov Islom , Abduazimova Iroda 
Published: August 2023

The article describes the application of the numerical method to the investigation of the dynamic interaction of contact lines with current collectors of electric rolling stock (ERS).The law of joint movement of the runner and the contact wire shall be established. If agap is recorded at anystage, the pressure value is set to zero. From this point on, the flux and contact wire are modeled independently. The contact wire shall be touched by the current collector by the clearance δ. As arule, the introduction into contact is accompaniedbytheintroduction of acurrent collector into the contact wire, which is characterized by negative clearance δ<0. To compensate for the introduction atthepointof contact, there must be an additional «push» force defined by the condition of zero clearance at the end of the stage.
Creation of special compositions based on butadiene-nitrile elastomers for diesels
Authors: Mamayev Sherali , Ibadullayev Axmadjan , Nigmatova Dilnoza , Teshabayeva Elmira , Tursunaliev Mukhsinjon 
Published: August 2023

In the article, it was determined that furan oligomer added to the composition causes additional structuring in the process of vulcanization, and as a result, the density and hardness of the vulcanization network in the composite increases, and the value of the relative length decreases. It was shown that the optimal amount of furan oligomers in the composition of rubber compounds is equal to 10 weight units per 100 weight units of rubber.
With the inclusion of the secondary product of acetylene production in the elastomer compositions, it was found that the amount of carbon-rubber gel and the vulcanization network increased, and the level of vulcanizate shrinkage decreased, which was shown to be mainly due to the presence of oligomeric components on the surface of carbon particles. It is shown that the inclusion of this raw material in elastomeric compositions based on butadiene nitrile rubber increases the interaction at the “rubber-filler” boundary and the formation of additional bonds between rubber macromolecules and functional groups of the oligomer, and as a result, the overall technological and technical properties of the compositions are improved.
Mathematical modeling of torsional vibrations of the wheel-motor unit of mains diesel locomotive UZTE16M
Authors: Mamaev Sherali , Anna Anna , Tursunov Shukurali , Nigmatova Dilnoza , Tursunov Tokhir 
Published: August 2023

The article considers methods for studying torsional vibrations of the wheel-motor block of a diesel locomotive UZTE16M. The diesel locomotives in question were modernized at the structural enterprise “O’ztemiryo’lmashta’mir” (Machine building and repair in Uzbekistan Railways company) under the joint-stock company “O’zbekiston temir yo’llari” (Uzbekistan railways). The authors of the article developed a dynamic model for the analysis of torsional vibrational movements that occur in the traction transmissions of the UZTE16M diesel locomotive, taking into account the geometric dimensions of the electric traction motors of the main locomotives and the degree of their wear.
Based on the model of the wheel-motor block of mainline locomotives, differential equations of the torsional-vibrational motion of traction gears are obtained in the form of Lagrange equations of the 2nd kind. The results of numerical studies of the amplitudes of torsional vibrations of the wheel-motor block of the UzTE16M locomotive at different frequencies are presented. All calculations were performed in the MATHCAD 15 environment.
Age at Menarche, Menopause Status and Metabolic Syndrome and its
Components: Findings from the Henan Rural Cohort Study
Authors: Wu Xueyan , Zhen Du , Liu Xiaotian , Liao Wei , Dong Xiaokang , Yang Jing , Zhao Bing , Wang Chongjian 
Published: August 2023

Abstract
Introduction To evaluate the effect of age at menarche on metabolic
syndrome (Mets) and its components and explore the impact of menopause status on
the association between age at menarche and Mets in rural Chinese women.
Methods This cross-sectional study enrolled 23382 women from the Henan
Rural Cohort study. The relationship between age at menarche and Mets was
assessed using logistic regression and restricted cubic spline. Interaction
plots were used to describe interactive eﬀects of age at menarche and
menopause status on Mets.
Results Age at menarche was inversely associated with the risk of Mets with
the adjusted OR of 1.16, 0.98, 1.00, 0.82, and 0.77, respectively, for those
with age at menarche≤13, 14, 15–16 (reference), 17,
and≥18 years. Each year of delay in menarche age correlated with a
6.2% (P<0.001) lower risk of Mets. Among the components
of Mets, an inverse association was observed between age at menarche and central
obesity (OR (95% CI): 0.92 (0.90, 0.94)), abnormal FPG (OR (95%
CI): 0.96 (0.94, 0.97)), abnormal BP (OR (95% CI): 0.967 (0.95, 0.98)),
abnormal TG (OR (95% CI): 0.96 (0.94, 0.97)), and abnormal HDL-C (OR
(95% CI): 0.96 (0.95, 0.98)). Significant interactions were discovered
between age at menarche, menopause status, and the risk of Mets, central
obesity, abnormal FPG, abnormal BP, and abnormal TG (all
P
interaction<0.001). The adverse effect of
menopausal status on Mets, central obesity, abnormal FPG, abnormal BP, and
abnormal TG decreased with delayed age at menarche.
Conclusions Later menarche was associated with a lower risk of Mets. More
importantly, the deleterious effect of menopause status on Mets decreased with
the increase in age at menarche.
Eine retrospektive Studie über einen 30-jährigen
Zeitraum von medizinischen Krafttraining als Therapieoption bei 101.000
chronischen Rückenpatienten
Authors: Hollmann Michael , Armbrüster Luca , Uhlig Hermann , Jäger Klaus , Schifferdecker-Hoch Frank 
Published: August 2023

ZusammenfassungRückenschmerzen stellen ein großes allgemeines Gesundheitsproblem
dar und verursachen hohe volkswirtschaftliche Kosten. Sie
beeinträchtigen die Lebensqualität der Patienten erheblich und
können zu einer reduzierten Teilhabe am sozialen Leben führen.
Dabei sind die Ursachen von Rückenschmerzen vielfältig und
erfordern einen biopsychosozialen Ansatz zur Diagnostik und Therapie, besonders
um den hohen Anteil funktioneller Störungen von dominierend organischen
Erkrankungen abzugrenzen. In der vorliegenden Studie wird die Wirksamkeit und
Wirtschaftlichkeit einer unter diesen Bedingungen stattfindenden
gerätegestützten Rückenschmerztherapie an über
100.000 chronischen Rückenschmerzpatienten aus einem Zeitraum von 30
Jahren untersucht. Die Teilnehmer nahmen an 24 Therapieeinheiten in einem
Therapiezentrum teil. Vor und nach der Therapie wurden Maximalkraftmessungen der
Rumpf- und Nackenmuskulatur durchgeführt und die Teilnehmer zu
Trainingshäufigkeit, Schmerz und Lebensqualität befragt. Die
Ergebnisse zeigen durchweg signifikante Verbesserungen aller analysierten
Parameter (p<0,001). So erreichen die Patienten Verbesserungen in Kraft,
Schmerz, Lebensqualität sowie ökonomischen Parametern. Aus den
Ergebnissen ergibt sich außerdem eine Steigerung der gesunden
Lebensjahre für die Teilnehmer. Die Studie zeigt somit, dass
spezifisches, adäquat eingesetztes Training eine Verbesserung der
Rückenschmerzen zur Folge hat. Die Beurteilung des Trainings-
beziehungsweise Therapieerfolgs erfolgt dabei nicht nur über den reinen
Kraftgewinn, sondern auch über patientenzentrierte Erfolgsparameter wie
Schmerzen oder Lebensqualität. Auch die wirtschaftliche Wirksamkeit der
Maßnahme ist zweifelsfrei gegeben, da signifikante Reduktionen in allen
untersuchten ökonomischen Parametern festgestellt wurden.
Darüber hinaus gewinnen Patienten durch die Teilnahme an gesunden
Lebensjahren hinzu, die zuvor durch ihre Rückenschmerzen minimiert
waren.
Guided Anti-P2Y12 Therapy in Patients Undergoing PCI: Three Systematic Reviews with Meta-analyses of Randomized Controlled Trials with Homogeneous Design
Authors: Birocchi Simone , Rocchetti Matteo , Minardi Alessandro , Podda Gian Marco , Squizzato Alessandro , Cattaneo Marco 
Published: August 2023

Background The value of guided therapy (GT) with anti-P2Y12 drugs in percutaneous coronary intervention (PCI) is unclear. Meta-analyses lumped together randomized controlled trials (RCTs) with heterogeneous designs, comparing either genotype-GT or platelet function test (PFT)-GT with unguided therapy. Some meta-analysis also included RCTs that did not explore GT, but included the effects of switching patients with high on-treatment platelet reactivity (HTPR) to alternative therapies (HTPR-Therapy). We performed three distinct systematic reviews/meta-analyses, each exploring only RCTs with homogeneous design.
Methods MEDLINE, Embase, and Central databases were searched for RCTs testing genotype-GT, PFT-GT, or HTPR-Therapy in PCI-treated patients, through October 1, 2022. Two reviewers extracted the data. Risk ratios (RRs) (95% confidence intervals) were calculated. Primary outcomes were major bleedings (MBs) and major adverse cardiovascular events (MACE).
Results In seven genotype-GT RCTs, RRs were: MB, 1.06 (0.73–1.54; p = 0.76); MACE, 0.65 (0.47–0.91; p = 0.01), but significant risk reduction was observed in RCTs performed in China (0.30, 0.16–0.54; p < 0.0001) and not elsewhere (0.75, 0.48–1.18; p = 0.21). In six PFT-GT RCTs, RRs were: MB, 0.91 (0.64–1.28, p = 0.58); MACE, 0.82 (0.56–1.19; p = 0.30): 0.62 (0.42–0.93; p = 0.02) in China, 1.08 (0.82–1.41; p = 0.53) elsewhere. In eight HTPR-Therapy RCTs, RRs were: MB, 0.71 (0.41–1.23; p = 0.22); MACE, 0.57 (0.44–0.75; p < 0.0001): 0.56 (0.43–0.74, p < 0.0001) in China, 0.58 (0.27–1.23, p = 0.16) elsewhere.
Conclusion No GT strategy affected MB. Overall, genotype-GT but not PFT-GT reduced MACE. However, genotype-GT and PFT-GT reduced MACE in China, but not elsewhere. PFT-GT performed poorly compared to HTPR-Therapy, likely due to inaccurate identification of HTPR patients by PFT.
A New Arthroscopic Classification of Triangular Fibrocartilage Complex Disorders
Authors: Herzberg Guillaume , Burnier Marion , Ly Lyliane , Nakamura Toshiyatsu , Piñal Francisco del , Atzei Andrea 
Published: August 2023

Abstract
Introduction The use of wrist arthroscopy has become a prerequisite for diagnosis and treatment of triangular fibrocartilage complex (TFCC) disorders. Since Palmer's landmark paper, many new arthroscopic descriptions of TFCC tears have been published but there is no currently available updated comprehensive arthroscopic classification of TFCC lesions.
Purpose We recently described the arthroscopic anatomy of the TFCC as viewed from a 3–4 portal. Our purpose was to propose a new TFCC disorders classification based on this new arthroscopic TFCC description.
Methods We included all currently described TFCC disorders to the best of our knowledge into our arthroscopic, functional, and vascular anatomical concept. We also included patient's specific ulnar variance and distal radial ulnar joint coronal inclination as baseline treatment-oriented parameters. The fresh or chronic, reparable or nonreparable nature of some types of TFCC tears were considered as separate parameters.
Results The proposed classification includes disc “D” (degenerative or traumatic), reins “R” (traumatic), and wall “W” (traumatic) lesions. Combined lesions of those three parts of the TFCC may be easily identified. This new classification should facilitate future analysis of isolated or combined TFCC disorders whether they are degenerative and/or traumatic.
Discussion The authors present a new three-dimensional-three-part arthroscopic updated description of TFCC disorders with relevance to etiology and treatment principles.
Endoscopic Mucosal Resection and Endoscopic Submucosal Dissection
Authors: Yilmaz Sumeyye , Gorgun Emre 
Published: August 2023

AbstractUp to 15% of colorectal polyps are amenable for conventional polypectomy. Advanced endoscopic resection techniques are introduced for the treatment of those polyps. They provide higher en bloc resection rates compared with conventional techniques, while helping patients to avoid the complications of surgery. Note that 20 mm is considered as the largest size of a polyp that can be resected by polypectomy or endoscopic mucosal resection (EMR) in an en bloc fashion. Endoscopic submucosal dissection (ESD) is recommended for polyps larger than 20 mm. Intramucosal carcinomas and carcinomas with limited submucosal invasion can also be resected with ESD. EMR is snare resection of a polyp following submucosal injection and elevation. ESD involves several steps such as marking, submucosal injection, incision, and dissection. Bleeding and perforation are the most common complications following advanced endoscopic procedures, which can be treated with coagulation and endoscopic clipping. En bloc resection rates range from 44.5 to 63% for EMR and from 87.9 to 96% for ESD. Recurrence rates following EMR and ESD are 7.4 to 17% and 0.9 to 2%, respectively. ESD is considered enough for the treatment of invasive carcinomas in the presence of submucosal invasion less than 1000 μm, absence of lymphovascular invasion, well–moderate histological differentiation, low-grade tumor budding, and negative resection margins.
Evidence for a Pathogenic Role of CSMD1 in Childhood Apraxia of Speech
Authors: Formicola Daniela , Podda Irina , Pantaleo Marilena , Andreucci Elena , Lopergolo Diego , Giglio Sabrina , Santorelli Filippo Maria , Chilosi Anna 
Published: August 2023

AbstractChildhood apraxia of speech (CAS) is a pediatric motor speech disorder. The genetic etiology of this complex neurological condition is not yet well understood, although some genes have been linked to it. We describe the case of a boy with a severe and persistent motor speech disorder, consistent with CAS, and a coexisting language impairment.Whole exome sequencing in our case revealed a de novo and splicing mutation in the CSMD1 gene.
History of Neurointervention
Authors: Sahoo Anurag , Abdalkader Mohamad , Saatci Isil , Raymond Jean , Qiu Zhongming , Huo Xiaochuan , Sun Dapeng , Weyland Charlotte S. , Jia Baixue , Zaidat Osama O. , Hu Wei , Qureshi Adnan I. , Miao Zhongrong , Nguyen Thanh N. 
Published: August 2023

AbstractIn this review article, we aim to provide a summary of the discoveries and developments that were instrumental in the evolution of the Neurointerventional field. We begin with developments in the advent of Diagnostic Cerebral Angiography and progress to cerebral aneurysm treatment, embolization in AVMs and ischemic stroke treatment. In the process we discuss many persons who were key in the development and maturation of the field. A pivotal aspect to rapid growth in the field has been the multidisciplinary involvement of the different neuroscience specialties and therefore we close out our discussion with excitement about ongoing and future developments in the field with a focus on treatments in the non-cerebrovascular disease realm.
Clinical and microbiology profile of typhoidal and nontyphoidal Salmonella blood stream infection: An observational study from a university hospital
Authors: Siddiqui Tasneem , Sinha Richa , Singh Patel Sangram , Sahu Chinmoy 
Published: August 2023

Objectives:
Species distribution and antibiotic resistance pattern of Salmonella varies with time and place. Rapid and correct use of antibiotics requires understanding of the distribution and drug resistance patterns. Therefore, we aimed to study the clinical profile of patients along with speciation and antibiogram of Salmonella isolates from blood.

Materials and Methods:
It is an observational study, conducted from December 2019 to December 2021 at our university hospital. Blood cultures were processed by automated blood culture system. Salmonella isolates were identified by their morphological properties, biochemical reaction, and serological tests. Antibiotic susceptibility pattern was assessed by Kirby–Bauer’s disc diffusion method and Phoenix automated system.

Results:
The male-to-female ratio of the patients in the study was 2.5:1 and the mean age of the patients was 11.7 years (1–27 years). Salmonella spp. was isolated from 21 patients out of 1,350 positive blood cultures. Nine isolates were identified as S. Typhi seven as S. Choleraesuis three as S. Paratyphi A and two as S. Paratyphi B. Immuno-compromised conditions were significantly associated in nontyphoidal Salmonella bacteremia (p = 0.0253). Isolates showed maximum resistance toward nalidixic acid (100%) followed by fluoroquinolones (52.4%). Multidrug resistance, extreme drug resistance, and azithromycin resistance was seen in 14.3, 4.8, and 4.8% isolates, respectively. Posttreatment recovery was observed in 20 patients.

Conclusions:
Emergence of S. Choleraesuis among Salmonella spp. in blood stream infection, next only to S. Typhi was noted. Rising drug resistance is a matter of concern.
Design of the Lanthanum hexaboride based plasma source for the large plasma device at UCLA
Authors: Qian Yuchen , Gekelman Walter , Pribyl Patrick , Sketchley Tom , Tripathi Shreekrishna , Lucky Zoltan , Drandell Marvin , Vincena Stephen , Look Thomas , Travis Phil , Carter Troy , Wan Gary , Cattelan Mattia , Sabiston Graeme , Ottaviano Angelica , Wirz Richard 
Published: August 2023

The Large Plasma Device (LAPD) at UCLA (University of California, Los Angeles) produces an 18 m long, magnetized, quiescent, and uniform plasma at a high repetition rate to enable studies of fundamental plasma physics. Here, we report on a major upgrade to the LAPD plasma source that allows for more robust operation and significant expansion of achievable plasma parameters. The original plasma source made use of a heated barium oxide (BaO) coated nickel sheet as an electron emitter. This source had a number of drawbacks, including a limited range of plasma density (≲4.0 × 1012 cm−3), a limited discharge duration (∼10 ms), and susceptibility to poisoning following oxygen exposure. The new plasma source utilizes a 38 cm diameter lanthanum hexaboride (LaB6) cathode, which has a significantly higher emissivity, allowing for a much larger discharge power density, and is robust to exposure to air. Peak plasma density of up to 3.0 × 1013 cm−33 in helium gas has been achieved. The typical operating pressure is ∼10−5 Torr, while dynamic pressure can be achieved through the gas-puffing technique. Discharges as long as 70 ms have been produced, enabling a variety of long-time-scale studies of processes, such as turbulent particle transport. The new source has been in continuous operation for 14 months, having survived air leaks, power outages that led to rapid temperature changes on the cathode and heater, and planned machine openings. We describe the design, construction, and initial operation of this novel new large-area LaB6 plasma source.
Effect of static electric fields on liquid water, its structure, dynamics, and hydrogen bond asymmetry: A molecular dynamics simulation study of TIP4P/2005 water model
Authors: Prasad Mahabir , English Niall J. , Chakraborty Somendra Nath 
Published: August 2023

We study the effect of static electric fields of 0.1, 0.4, and 1.0 V/nm on the hydrogen bond structure and dynamics of TIP4P/2005 water at 1 bar and at temperatures between 300 and 200 K using molecular dynamics simulations. At all these temperatures, simulating liquid water with electric fields of 0.1 and 0.4 V/nm has no additional effect on its structural and dynamical changes, which otherwise already take place due to cooling. However, the introduction of 1.0 V/nm field enhances the slowing down of liquid water dynamics, crystallizes it to cubic ice at 240 and 220 K, and amorphizes it at 200 K. At 240 and 220 K, crystallization occurs within 5 and 50 ns, respectively. An electric field of 1 V/nm increases the relaxation times in addition to what cooling does. We note that when liquid water’s metastability limit is reached, crystallization is averted and amorphization takes place. Both equilibrium (liquid–solid) and non-equilibrium (liquid–amorphous) transformations are observed at 1 V/nm. Moreover, with an increase in the electric field, H-bonds become stronger. However, the donor–acceptor asymmetry (the difference between the strengths of two donor/acceptor bonds) remains even when crystallization or amorphization takes place. At low temperatures, increasing electric fields on liquid water increases both its crystallization and amorphization tendencies.
Preparation of thin-film SOI wafer by low-dose ion implantation
Authors: Zhang Yuhang , Sun Chenguang , Zhang Hui , Xie Luxiao , Liu Heyan , Chen Guifeng 
Published: August 2023

Silicon-on-insulator (SOI) devices have many advantages, such as high speed, low energy consumption, radiation-hard, and high integration. In this paper, the separation by implanted oxygen process under low-dose implantation conditions is studied by the two-step implantation method combined with the internal thermal oxidation process. The effects of different types of silicon wafers and different implantation doses on SOI surface defects, top Si thickness, buried oxide (BOX) layer thickness, BOX layer breakdown voltage, and top Si defect density were investigated. Ultra-thin SOI wafers are prepared by epitaxial silicon wafers and control the first implantation dose. The number of surface defects of SOI materials is less than 100 counts, the breakdown voltage of the BOX layer is about 7.8 MV/cm, and the top Si dislocation density is about 8 × 103 cm−2.