bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisa Pengaruh Putaran Pompa Centrifugal (Seri dan Paralel) Terhadap Aliran Fluida dan Efisiensi Pompa
Authors: Suryadi S , Habibi Muhammad 
Published: December 2023

Dalam kehidupan modern semacam saat ini ini pompa memiliki pemakaian yang sangat luas di hamper seluruh bidang aktivitas. Bisa dipahami kalau buat menanganinya dibutuhkan pengetahuan yang mencukupi serta terperinci paling utama dalam metode–cara pemilihan, pemasangan, konsumsi, serta pemeliharaannya. Dalam pengoperasian pompa, laju aliran yang diperlukan tidak senantiasa senantiasa, sebab itu kapasitas aliran wajib bisa diatur cocok kebutuhan. Atas bawah pemikiran ini penulis berupaya mempelajari pengaruh alterasi kecepatan putaran pompa bila dipasang secara tunggal, seri serta parallel. Pada peneltian ini variasi yang digunakan adalah kecepatan putaran pompa 1000, 1500, 2000, 2400 dan 2800 Rpm yang masing-masing diuji coba pada tipe pemasangan pompa sentrifugal tunggal, seri dan parallel. Efisiensi pompa yang tinngi terjadi pada tipe pompa pemasangan parallel. Untuk pompa tunggal efisiensi tertinggi pada 2500 rpm, untuk pompa seri efisiensi tertinggi pada 2000 rpm yang kemudian terjadi penurunan pada 2500 dan 2800 rpm namun untuk tipe pompa pemaasangan yang parallel efisiensi tertinggi terjadi pada kecepatan putaran 2500 rpm dan terjadi penurunan efisiensi pada putaran pompa 2800 rpm.
Clinical case of the surgical treatment of complete rupture of distal biceps tendon using two cortical buttons
Authors: Medvedchikov A. E. , Anastasieva E. A. , Prokhorenko V. M. , Kirilova I. A. 
Published: December 2023

Distal biceps tendon injuries mainly occur in men from the active groups of population. Among the athletes and military personnel, the incidence rate is 2–10 % of the upper limb tendon injuries. Comparative studies have shown the achievement of better functional results in surgical treatment, while maintaining overall complication rate of 4.6–25 %. The aim. To demonstrate a new reinsertion technique with two cortical buttons in case of complete rupture of distal biceps tendon as part of a clinical case. Materials and methods. The article presents a clinical case of surgical treatment of a patient with complete rupture of dominant limb distal biceps tendon which was more than 2 weeks old and was accompanied by lacertus fibrosus provocation and persistent muscle retraction. Results. We obtained the following clinical results by the week 24 after the surgery: VAS (Visual Analogue Scale) score – 1 cm, ASES (American Shoulder and Elbow Surgeons) score – 99 points, DASH (Disabilities of the Arm, Shoulder and Hand) score – 15 points. Dynamometry results: Dex. 85; sin. 90 (2daN); range of motion corresponds to the same of a healthy joint. MRI at 1.5 T shows no signs of synostosis or heterotopic ossification; MSCT shows no signs of migration of cortical buttons in comparison with intraoperative X-ray control. Discussion. Extracortical methods of distal biceps tendon positioning in anatomical reinsertion have lower strength indicators, comparable with the use of transosseous sutures and anchor fixators. A larger area of contact of the studied zone in case of minimal tendon compression in the area of proximal radioulnar space or inside the formed radial bone canal provides high strength indicators and reduces the risk of repeated injury. Conclusion. The scores of the scales (VAS, DASH, ASES) turned out to be better than when using other common methods. The technique of dipping distal biceps tendon stump into the formed oval canal of the “anatomical impression” using the proposed method meets the objectives of careful attitude to the tendon and provides the largest area of its contact with the bone.
Microcirculation parameters of the damaged segment of the lower extremity after treatment of diaphyseal fractures using a locked intramedullary nail
Authors: Plakhov A. I. , Korytov L. I. , Vinogradov V. G. , Darenskaya M. A. , Makarov S. V. 
Published: December 2023

Background. An in-depth analysis of the scientific works of scientists and medical practitioners allows us to conclude that locked nail intramedullary osteosynthesis is the optimal and the most effective method of treating closed diaphyseal fractures of the lower leg bones, which is caused by the high stability of osteosynthesis and minimal damage to soft tissues during surgery. The processes of microcirculation changes in the early postoperative period by various metal structures, including a locked intramedullary nail, still remain unexplored. In particular, there is insufficient data on the use of a locked intramedullary nail. The aim of the study. To identify the features of changes in microcirculation indices of injured lower leg bones during fixation of fragments with a locked intramedullary nail in the early postoperative period. Materials and methods. The microcirculation of the lower limb segment was studied in 25 patients using laser Doppler flowmetry. Data from 25 healthy volunteers were used as a comparison group. Results. It was found that in the early postoperative period, from day 1 to day 10, in patients with diaphyseal fractures of the lower leg bones operated with locked nail intramedullary osteosynthesis, there is a decrease in the cardiac range, an increase in the share of the shunt component of microcirculation compared to the nutritional share, as well as an increase in more than 1 ratio of the cardiac and respiratory range amplitude, which indicates an ischemia type of local circulatory disorder. Compensation of ischemia is done by anastomoses, since the bypass rate is increased. Conclusion. In case of surgical treatment with locked nail intramedullary osteosynthesis, in the early postoperative period, an ischemic type of compensated local circulatory disorder develops. The regeneration process takes place under conditions of reduced arterial microcirculation blood flow and stable venous outflow, as well as the inclusion of anastomoses to compensate for destroyed vessels, which is associated with nail damage to the internal blood flow of the bone endosteum and intraosseous nutrient artery during the surgery.
Revision surgery for failure of the dynamic stabilization system of the lumbar spine
Authors: Potapov V. E. , Larionov S. N. , Zhivotenko A. P. , Gorbunov A. V. , Sorokovikov V. A. 
Published: December 2023

The aim. To study the frequency and treatment options for dysfunction of the dynamic stabilization system of the lumbar spine. Materials and methods. We carried out a retrospective analysis of the treatment of 58 patients with degenerative pathology of the lumbar spine and instability of the spinal motion segments, who were treated at the neurosurgical unit of the Irkutsk Scientific Centre of Surgery and Traumatology in 2011–2020. The stability of spinal motion segment was assessed using X-ray imaging, magnetic resonance imaging and multi-layer spiral computed tomography of the lumbar spine. Revision surgery was performed in 7 out of 58 previously operated patients using the dynamic fixation system of spinal motion segments “Coflex” (Paradigm Spine LLC, Germany). Results. Revision surgery was performed in 7 out of 58 patients with dynamic fixation of the spinal motion segments with an interosseous implant due to an increase in pain syndrome. In 1 patient, the reason for repeated surgery was primary instability of the hardware caused by a fracture of the spinous process. In the delayed period, 4 patients had an X-ray picture with heterotopic ossification of the implant and instability of PDS. In two observations, a recurrence of intervertebral hernia was diagnosed at the level of the operated spinal motion segment. During revision surgery, a facetectomy was performed with stabilization by a peek cage, followed by pain management and clinical manifestation regression. Conclusion. The conducted study shows that a number of patients after discectomy and dynamic stabilization of the spine using “Coflex” system have inconsistency and heterotypic ossification of the implant and neoarthrosis. Implantation of a lumbar peek cage while maintaining the “Coflex” device makes it possible to form a rigid interbody fusion, which means it is sufficient and justified surgical technology for treating the failure of the dynamic stabilization system.
Shortterm and long-term results of bimammary bypass surgery in patients with multivessel coronary disease and type 2 diabetes mellitus after propensity score matching
Authors: Muradov A. G. , Grinshtein Yu. I. , Drobot D. B. , Miller A. Yu. , Sakovich V. A. 
Published: December 2023

Background. Among patients who have undergone coronary artery bypass surgery (CABG), the proportion of people with diabetes mellitus (DM) is about 40 %. To date, the problem of choosing the optimal method of surgical myocardial revascularization, which can provide the best result in this cohort, remains completely unresolved. The aim of the study. To assess the in-hospital and long-term results of bimammary and traditional bypass surgery in patients with type 2 diabetes mellitus. Methods. From September 2018 to December 2021, 176 CABG surgeries were performed in patients with coronary heart disease (CHD) and type 2 diabetes at the Federal Center for Cardiovascular Surgery (Krasnoyarsk). Group 1 (n = 45) included patients who underwent myocardial revascularization using two mammary arteries; group 2 (n = 131) included patients who underwent myocardial revascularization using traditional technique. After propensity score matching, 45 patients were selected into each group, comparable by basic preoperative characteristics. Results. In group 1, cardiopulmonary bypass surgeries were performed in 23 (51.1 %) patients (group 1CPB), off-pump surgeries – in 22 (58.2 %) (group 1OP); in group 2, all patients underwent cardiopulmonary bypass surgeries. Hospital mortality was recorded in group 2 in 1 (2.2 %) case. Deep sternal infection developed in 1 (4.5 %) patient in group 1OP. Long-term survival in group 2 was 85.3 %, in group 1CPB – 83.3 % (p = 0.689), in group 1OP – 84.2 % (p = 0.739). 84.2 % of patients in group 2 and 100 % in groups 1CPB and 1OP had no cardiovascular events (p = 0.144 and p = 0.145, respectively). Conclusion. Bimammary bypass surgery in patients with type 2 diabetes is a safe and effective method of surgical treatment of coronary artery disease in both shortand long-term period and may be the operation of choice in patients with multivessel disease. There were no differences in patient survival up to 45 months; bimammary revascularization was associated with 100 % absence of cardiac mortality.
Quality of life of patients with singleand multigland parathyroid disease in sporadic primary hyperparathyroidism before and after surgical treatment
Authors: Ilyicheva E. A. , Bersenev G. A. , Roy T. A. 
Published: December 2023

Background. In 15–25 % of cases, the cause of primary hyperparathyroidism (PHPT) is multigland parathyroid disease. The complexity of clinical and laboratory prognosis, low efficiency of imaging methods, inaccurate assessment of the radicality of the surgery are the components of the problem of this variant of the disease. Quality of life (QOL) is an important criterion for the effectiveness of surgical treatment. A study of the QOL in patients with multigland parathyroid disease in PHPT has not been previously conducted in our country. The aim of the study. To assess the quality of life of patients with single- and multigland parathyroid disease in sporadic primary hyperparathyroidism before and after parathyroidectomy (PTE). Methods. As part of a prospective observational study, the quality of life of 64 patients with PHPT before and after PTE was assessed using SF-36 (Short Form 36) questionnaire: main group (n = 13) – patients with multigland parathyroid disease; comparison group (n = 51) – patients with single-gland parathyroid disease. The quality of life indicators of the patients were compared with those in a sample of the Irkutsk region population similar in gender and age. Results. Before performing PTE, the quality of life of patients with PHPT was lower than that of the Irkutsk region population. The greatest decrease in both health components was registered in the main group. In 90 % of patients, the quality of life improved after PTE, while in the main group changes were established 1 year after the surgery, in the comparison group – 6 months after the surgery. Transient complications (laryngeal paresis) and disease outcomes (hypocalcemia, hypoparathyroidism) did not interfere with the improvement of quality of life in both groups. When persistence was detected, no significant improvement in QOL was established. Conclusion. The quality of life of patients with PHPT is significantly reduced. PTE improves the QOL of these patients, and only persistence of the disease does not allow this to be achieved. Therefore, surgical tactics aimed at reducing the frequency of persistence will achieve a decent quality of life in the majority of patients with multigland parathyroid disease in PHPT.
Restoration of X-ray bone density when replacing cortical plate defects with a tissue-engineered construct in the experiment
Authors: Anastasieva E. A. , Cherdantseva L. A. , Medvedchikov A. E. , Lukinov V. L. , Kirilova I. A. 
Published: December 2023

Over the past decade, in global practice, the frequency of using high-resolution multi-layer spiral computed tomography (MSCT) for assessing the state of cancellous and cortical bone tissue has significantly increased. Using high-resolution MSCT makes it possible to assess X-ray bone density at various times after replacement of cortical plate defects with osteoplastic materials. The aim of the research. To study the restoration of cortical bone density in the area of osteoplasty using tissue-engineered construct in the experiment. Materials and methods. In an in vivo experiment on New Zeland White (NZW) rabbits, perforation defects of cortical bone were formed in the femoral diaphysis. Three study groups were set up: group 1 – without bone defect replacement; group 2 – with bone defect replacement with deproteinized cancellous bone; group 3 – with bone defect replacement with tissue-engineered construct based on deproteinized cancellous bone with stromal vascular fraction of adipose tissue. Follow-up periods were 2, 4 and 6 weeks after the surgery. The X-ray density of cortical bone tissue was measured in Hounsfield units (HU). Fragments of deproteinized human cancellous bone were used alone and in combination with the stromal vascular fraction of NZW rabbit adipose tissue as a bone-replacing material for bone defect replacement. Results. Cortical plate density the in the area of the defect in the group 3 by the week 6 is on average 1.3 times lower than that of the intact cortical plate and corresponds to D1 according to Misch classification. Cortical plate density in the area of the defect on the side of medullary canal by the week 6 in the group 3 corresponds to D1 according to Misch classification and is equal to 1351.25 ± 221.18 HU (1052; 1805), which is 1.5 times higher than in group 2 (D2 according to Misch classification; p < 0.05). The obtained results indicate an earlier restoration of X-ray bone density when using a tissue-engineered construct (group 3) compared to the same indicators in groups 1 and 2.
Antimicrobial potential of iodine-containing substances and materials
Authors: Nevezhina A. V. , Fadeeva T. V. 
Published: December 2023

Despite the search and development of new antimicrobial drugs with antibiotic or antiseptic properties, the spread of multidrug-resistant strains of microorganisms remains a serious problem in the treatment and prevention of infectious diseases (wound, postoperative and burn infections, preoperative preparation of the surgical and injection fields, hygienic disinfection of the hands of surgeons, medical personnel, etc.). This review of modern domestic and foreign literature sources is devoted to the analysis of data on the prospects of using antiseptics with iodine and iodides as antimicrobial agents. In modern conditions, there is an increasing number of scientific works devoted to the study and development of various drugs, distinguished by their diversity and their specific application. Antimicrobial iodine-containing compounds can be applied to a wide range of materials such as textile, plastics, metals, ceramics to make them resistant to microbial and biofilm growth. The article summarized the literature data on the high antimicrobial activity of iodine both in neutral carriers and in synergy with substances already possessing similar properties. Such complex preparations lose their toxicity to a large extent, having prolonged action with the preservation of their properties. The main mechanisms of antimicrobial action of iodine and iodine compounds are determined by their strong oxidizing ability. Attention is drawn to the spectrum of activity of iodine preparations. Along with the antimicrobial effect, they can promote regeneration processes. In general, innovative iodine preparations with antibacterial and fungicidal properties are promising for medical and other purposes.
Complex neuroimaging study of the proximal segment after rigid fixation and dynamic stabilization in patients with degenerative lumbar disease
Authors: Krivosсhein A. E. , Kolesov S. V. , Kalinin A. A. , Konev V. P. , Kazmin A. I. , Moskovskiy S. N. , Byvaltsev V. A. 
Published: December 2023

Background. The development of the adjacent level syndrome and, as a consequence, adjacent segment degenerative disease are currently the most common complications of decompression and stabilization surgery with the development of segmental instability. The aim of the study. To conduct a comprehensive neuroimaging assessment of the proximal adjacent segment after rigid fixation and dynamic stabilization in degenerative lumbar disease. Materials and methods. We conducted a prospective multicenter study of the results of surgical treatment of 274 patients with degenerative-dystrophic diseases of the lumbar spine, who underwent monosegmental decompression and stabilization surgery using the TLIF (transforaminal lumbar interbody fusion) technique and open transpedicular rigid fixation, as well as open hemilaminectomy with stabilization of the operated segments with nitinol rods. The study included radiography, diffusion-weighted magnetic resonance imaging and computed tomography (dualenergy mode) of intervertebral discs and isolated facet degeneration of the upper adjacent level. Results and discussion. Combination of the initial proximal segment degeneration in the form of facet joints degeneration (density of cartilaginous plate – 163.5 ± 14.2 HU, density of external facet – 709.35 ± 13.6 HU, density of internal facet – 578.1 ± 12.1 HU), Pfirrmann III, IV grade degeneration of intervertebral disc and a measured diffusion coefficient of less than 1300 mm2/s cause high risks of developing adjacent segment degenerative disease, which regulates the use of monosegmental dynamic fixation with nitinol rods, or preventive rigid fixation of the adjacent segment. Conclusion. Using complex neuroimaging in the preoperative period makes it possible to predict the results of surgical treatment, take timely measures to prevent degenerative diseases of the adjacent segment, and to carry out dynamic monitoring of processes in the structures of the spinal motion segment.
Analyse linguistique au service du TAL
Authors: Bogacki Krzysztof 
Published: December 2023

Using the notion of predicate in the sense of an element structuring the sentence at the surface level, G. Gross arrives at an interpretation of linguistic facts that is valid for those who adopt the concept of semantic predicate as a tool for analysis. It belongs to the abstract level of meaning and is considered to be an essential part of the mechanism for disambiguation and selecting the meaning of lexemes or grammatical structures. This mechanism is particularly important in the context of machine translation where it is necessary to choose, in the bilingual transfer dictionary, the accurate equivalent of a polysemic lexeme in the target language.
Rare median and musculocutaneous nerve fusion with intraoperative electrical confirmation: illustrative case
Authors: Huang Audrey , Vazquez Sima , Dominguez Jose , Mohan Avinash , Li Jin , Pisapia Jared M 
Published: December 2023

BACKGROUND
Nerve transfer is a surgical technique in which a redundant or expendable fascicle is transferred or coapted to an injured nerve distal to the site of injury for the purpose of reinnervation. Successful nerve transfer is dependent on correct intraoperative identification of donor and recipient nerves.

OBSERVATIONS
An 8-year-old male was recommended for ulnar nerve fascicle to biceps branch of musculocutaneous nerve transfer to restore elbow flexion weakness after a demyelinating spinal cord injury. The biceps branch was identified approximately midway along the upper arm. Proximal musculocutaneous nerve stimulation induced hand movement and electromyography activity in the median nerve muscles. Neurolysis of the thickened proximal structure revealed fusion of the musculocutaneous and median nerves. Because of the proximity of the median and musculocutaneous nerves, median rather than ulnar nerve fascicles were used as donors for transfer.

LESSONS
The authors provide the first reported intraoperative finding of an anatomical variant in which the musculocutaneous nerve and median nerve were fused in the upper arm, confirmed through intraoperative electrical stimulation. Surgeons should be aware of this rare anatomical variant to ensure correct nerve identification when performing nerve transfers in the proximal upper extremity.
Serum aspartate aminotransferase, a novel potential biomarker of prognosis in extranodal natural killer/T cell lymphoma, nasal type
Authors: Yao Ningning , Hou Qing , Liang Yu , Cao Xin , Sun Bochen , Wei Lijuan , Sun Ruifang , Cao Jianzhong 
Published: December 2023

BACKGROUND: Aspartate aminotransferase (AST), an indicator of liver cell damage, was related to the prognosis of certain malignant tumors. OBJECTIVE: This study examined the predictive value of AST in patients with extranodal natural killer/T cell lymphoma (ENKTL). METHODS: We reviewed 183 cases diagnosed with ENKTL and selected 26 U/L as the optimum cut-off value of AST. We used the univariate and multivariate Cox regression to compare the different AST groups’ overall survival (OS) and progression-free survival (PFS). RESULTS: Prior to propensity score matching (PSM), Kaplan-Meier analysis showed that patients in the low AST subgroup had better OS and PFS than the high AST subgroup. Multivariate analysis revealed that AST was an independent indicator for prognosis. After PSM, the low AST subgroup maintained a significantly better OS and PFS than the high AST subgroup. CONCLUSION: AST might represent a significant prognostic marker for ENKTL patients.