bluuebunny/crossref_metadata_2025 huggingface dataset:
STUDY OF CLINICAL PROFILE OF OROPHARYNGEAL DYSPHAGIA USING FIBEROPTIC ENDOSCOPIC EVALUATION OF SWALLOWING (FEES) TECHNIQUE
Authors: Mali Kiran
Published: April 2023

In elderly, dysphagia and its consequences have a marked effect on quality of life. Patients with oropharyngeal dysphagia
shows various structural and functional alterations. Fiberoptic Endoscopic Evaluation of Swallowing (FEES) is now
widely accepted method for assessment of swallowing. This study was undertaken to know the prevalence of swallowing disorders and also
assess anatomical and physiological changes seen in oropharyngeal dysphagia cases. A cross sectional study was conducted in the Methods:
tertiary care hospital from January 2019 to June 2020. All patients underwent FEES examination using exible breoptic nasopharyngoscope.
Anatomy and physiology of the pharynx, and larynx was assessed. Presence of oropharyngeal secretions, penetration, aspiration, residue, and
spontaneous swallowing was observed. In 37 patients of Oropharyngeal dysphagia mean age Results: was 53.56 years with male preponderance
(73%). In our study, oropharyngeal, laryngopharyngeal and supraglottic growth (40.54%) was the most common cause of oropharyngeal
dysphagia, followed by LPR (18.9%) and neurological disorders (18.9%). In 37 patients examined 43.24% cases had secretions, 40.5% cases
showed penetration, 35.1% cases showed aspiration. The most common cause of oropharyngeal Conclusion: dysphagia was oropharyngeal,
laryngopharyngeal and supraglottic growth and was more frequently seen in elderly patients. FEES can be used as screening procedure and gives
complete assessment of pharyngeal phase of swallowing
A STUDY TO ASSESS THE ATTITUDE TOWARDS DIFFICULTIES FACED DURING ANTENATAL VISITS IN PANDEMIC SITUATION AMONG ANTENATAL MOTHERS AT SMVMCH, PUDUCHERRY.
Authors: Grishanker G. , Manimegalai Msc,phd(N) P. , Muthamilselvi G.
Published: April 2023

The COVID-19 pandemic is posing considerable challenges for countries to maintain the provision of high quality,
essential maternal and newborn health services. Pregnant women and mothers with newborns may experience difculties
accessing services due to transport disruptions and lockdown measures or be reluctant to come to health facilities due to fear of infection. Thus, a
modest decline of 10% in coverage of pregnancy related and newborn health-care services were reported due to pandemics. This would result in
28,000 maternal deaths Anxiety and stress are prevalent psychiatric disorders that can result in negative health outcomes in the long run. The risk
factors of anxiety and stress are numerous among which personal factors and genetic susceptibility are the main important ones; furthermore, the
inappropriate coping with the changing environment has been identied as an important source of stress that causes anxiety as well. Pregnancy is
one of the life periods with a high frequency of stress and anxiety disorders, supposed to be triggered by hormonal and physical changes, the fear
of the neonate's health, giving birth, and other pregnancy-related factors. Majority of the antenatal mothers 45 (90%) had moderately favourable
level of attitude, 4(8%) had unfavourable level of attitude and 1(2%) had favourable level of attitude s and the mean and standard deviation of
level of attitude towards difculties faced during antenatal visits in pandemic situation among antenatal mothers is (36.92+6.074) respectively.
Therefore the study should be conducted to test the level of attitude about the difculties faced by the antenatal mothers during the pandemic
situation in SMVMCH
FACTORS FAVORING PREFERENCE OF ARTERIOGRAPHY OVER CT ANGIOGRAPHY FOR PERIPHERAL ARTERIAL DISEASE EVALUATION
Authors: Subrayan L.
Published: April 2023

Despite many advances in the quality and availability of less invasive arterial imaging modalities, arteriography remains
the “gold standard.” This is a Prospective study which analyzes the factors favoring the preference of DSA over CTA in
patients with peripheral vascular disease. Those patients with peripheral vascular disease undergoing DSA, who were initially planned for CTA
and could not undergo CTA for various reasons were included. This study consists of 38 patients with most of them were males 29 (76%). In our
study common factor for referral over CTA was renal dysfunction patients 18 out of 38 ( 47%), as contrast required in standard CTA for lower limb
runoff is around 100ml and in our DSA average volume required is only 30ml because of target lesion arteriography with magnication. Next
common factor was presence of heavy calcications in tibial vessel walls which hampers the evaluation of the CTA who were 37% of our study
patients (14). Other factors were severe congestive Cardiac Failure, Previous Bone Plating/Nailing in leg bones and limb Contracture. With
increasing incidences of diabetic patients with their associated diabetic nephropathy and heavy calcicated arteries, makes these patients more
preferred for DSA than CTA due to its low contrast dose requirements and images free of calcication artefacts
TO COMPARE THE EFFICACY OF ANALGESIA PRODUCED BY THE ADDITION OF FENTANYL TO1%2- CHLOROPROCAINE VERSUS 0.5% ROPIVACAINE IN SPINAL ANAESTHESIA FOR AMBULATORY SURGERIES - RANDOMIZED DOUBLE-BLINDED CONTROLLED STUDY.
Authors: Shrinivas Deshmukh Aishwarya , Madhav Panditrao Mridul
Published: April 2023

Introduction: Short surgical procedures warrant the use of a lower dose of local anaesthetics. We compare the
combination of 2-chloroprocaine (CP) + fentanyl and ropivacaine+ fentanyl spinally for early micturition and
ambulation. Our aim was to assess the duration of the motor blockade. As CP has a shorter half-life it would show a signicantly shorter block
regression time. Randomized double-blinded study involving 82 patients posted for short-duration s Methodology: urgeries (<90 mins) was
carried out. Randomization was done using the chit method, 41 chits each with C and R written on it, for ropivacaine and 2-CP were used: Group
C - 1%2- CP (30mg) with 12.5mcg fentanyl and Group R - 0.5% Ropivacaine (15mg) with 12.5mcg fentanyl. The assessor and patient were
blinded. Onset, time of regression and duration of sensory and motor blockade, intraoperative haemodynamic parameters, time of rst rescue
analgesia, time of micturition and time of ambulation was assessed. – c Statistical analysis hi-square test, independent t-test, p-value <0.05
Result: CP shows a faster recovery of early ambulation and micturition, without side effects. Fentanyl improves duration without interfering in
micturition/ambulation CP provides adequate duration and depth of surgical anaesthe Conclusion: sia for the short procedure with faster block
regression and early ambulation compared to ropivacaine. The addition of fentanyl improves the quality of the block without interfering with the
postoperative outcomes.
COMPARISON OF DIGITAL MAMMOGRAPHY AND DIGITAL BREAST TOMOSYNTHESIS FOR EVALUATION OF BREAST TUMOURS WITH HISTOPATHOLOGICAL CORRELATION
Authors: K Duara B. , Saikia Sabanika , Talukdar L. , Agarwal S.
Published: April 2023

AIM: To compare the histopathological grading of breast tumors detected with digital breast tomosynthesis(DBT) to
those found with digital mammography(DM). The study was conducted in the MATERIALS ANS METHODS:
department of Radiodiagnosis, Gauhati Medical College and Hospital, Guwahati, from January 2021 to January 2022. A sample of 100 women
with signs and symptoms of breast disease were evaluated based on inclusion and exclusion criteria. DM and RESULTS AND DISCUSSION:
DBT were performed and the ndings were recorded. During statistical analysis BIRADS category allotted in DM and DBT was compared in
benign and malignant tumors and nal results were formulated in tables and graphs. The ndings we obtained in our study were compared with
the results of previous research works. DBT is a promising imaging technique tha CONCLUSION: t has higher sensitivity and specicity than
DM for the diagnosis and characterization of various breast disorders
DIFFUSION AND PERFUSION WEIGHTED MR IMAGING IN EVALUATION AND CHARACTERIZATION OF BRAIN TUMOURS
Authors: Kumar Duara Bijit , Bora Binoy , Agarwal Sushant
Published: April 2023

DWI and PWI give sufcient non-invasive functional and structural information at the cellular level, emphasising
features of the underlying brain pathophysiology. Radiological evaluation of brain tumours done with DWI and PWI
parameters using ADC and rCBV values in intra tumoral and peri tumoral region of different brain tumours. Histopathological data was collected
and taken as a standard reference for correlation with the diffusion and perfusion parameters of brain tumours. 73 lesions are primary and 17
lesions are secondary out of 90 cases which were diagnosed histo-pathologically. Majority of the high-grade tumours show high relative cerebral
blood volume value compared to lower grade tumours and lower ADC values in high grade tumours which is in strong correlation with the HPE
analysis. So with DWI and PWI parameters we can conclude on the fact that these imaging techniques are strong and efcient imaging tools to
evaluate and characterize brain tumours.
CLINICAL STUDY OF NEUTROPHIL TO LYMPHOCYTE RATIO AS PROGNOSTIC MARKER OF SEVERITY AND MORTALITY IN COVID 19 PATIENTS ADMITTED AT A TERTIARY HEALTHCARE CENTER DURING SECOND WAVE OF EPIDEMIC.
Authors: Waghmare Priya , Patil Puneet , Shinde Pranjali , Sarode Swapnil
Published: April 2023

Background: A high neutrophil to lymphocyte ratio (NLR) indicates an imbalance of the inammatory response and can
be used as a surrogate marker of disease severity in infectious diseases. Present study was aimed to study the prognostic
value of Neutrophil to lymphocyte ratio as a marker of severity and mortality in covid 19 patients during second wave. Material and Methods:
Present study was single-center, Retrospective Cross-sectional study, conducted from case records of patients with clinical manifestations like
fever and pulmonary symptoms and RT-PCR positive for SARS-CoV-2. NLR ratio was calculated using as absolute count of Neutrophils by
absolute count of Lymphocytes. 88 case-records satisfying study criteria were conside Results: red for this study. Majority cases were male
(59.09 %), from 50-59 years (28.41 %) & 60-69 years (23.86 %) age group. Clinically & radiologically majority cases had moderate COVID (50
%) as compared to severe COVID (31.82 %) & mild COVID (18.18 %). Mortality was 14.77 %. Neutrophil to Lymphocyte ratio (NLR) was
signicantly raised in Severe COVID cases (7.09 ± 3.64) as compared to Moderate (5.21 ± 2.24) & Mild (3.96 ± 1.52) COVID disease severity,
difference was statistically signicant (p<0.05). Hematological parameters (absolute neutrophil count, absolute lymphocyte count, total WBC
count & absolute neutrophil count/ absolute lymphocyte count ratio) were signicantly raised in COVID cases died during treatment as
compared to those who survived, difference was statistically signicant (p<0.05). Conclusion: NLR is a useful parameter which may be used
along with regular parameters to predict severity, progression of disease & mortality in COVID 19 patients
A STUDY OF CORRELATION OF PREOPERATIVE RADIOLOGICAL DIAGNOSIS WITH OPERATIVE FINDINGS IN BLUNT INJURY ABDOMEN
Authors: Manmadha Rao V. , K. Mahalakshmi B. , Kodanda Ramu U. , Janardhana Rao K. , Siri G. , Yaswanth Sai J. , Nikitha V. , Chandra Deepika M.
Published: April 2023

Introduction: Trauma has been called the neglected disease of modern society, despite its close companionship with
man1. Abdominal trauma caused by blunt force is a common presentation in the emergency room seen in adults and
children. They are usually an outcome of road trafc accidents, fall from heights or fall on any blunt objects or due to assaults2. They are
associated with a high morbidity and mortality which can be avoided with early diagnosis and management. To study the correlation Objective:
of preoperative diagnosis made by radiological evaluation with the intraoperative ndings in cases of blunt abdominal trauma. Materials and
methods: The present study was conducted on 60 clinically suspected patients of blunt abdominal trauma presenting to the Emergency
Department, King George Hospital, Visakhapatnam. The study was conducted after prior approval by the Institutional Ethics Committee and
informed and written consent from the patient. 60 patients with clinical suspicion of blunt abdominal trauma were selected. After thorough
clinical examination, the patients were subjected to X-ray chest and abdomen, Ultrasonography (USG) and Computed Tomography (CT)
imaging. After arriving at a pre-operative diagnosis, these patients were followed up and correlation of this diagnosis was done with the intraoperative ndings and the results were evaluated. The data entry was done using M.S.Excel and statistical analysis was done using Statistical
package for social sciences (SPSS version 16) for M.S.Windows. Fischers exact test was used. p-value less than 0.05 was considered to be
statistically signicant. It was observed that preoperative diagnosis ma Results: de with CT had a higher degree of correlation with the
intraoperative ndings when compared to Ultrasonography. It can be concluded that CT i Conclusion: s a better tool for preoperative evaluation
when compared to USG in cases of blunt abdominal trauma
SHIFT OF THE HUMAN LEPTOSPIROSIS RISK FACTORS IN SOUTH ANDAMAN ISLAND, INDIA
Authors: Fatema Ambreen , R Manjunatha , Vijayachari Paluru
Published: April 2023

Introduction: Leptospirosis is a zoonosis, endemic in south Andaman with 12.9% prevalence rate for rural population.
Objective: identify the changes in environmental and behavioral risk factors associated with leptospirosis, which will help
in the prevention and control strategies design. Cross-sectional study design with Methods: a universal sampling of laboratory-positive cases of
385 and 360 controls. Multilogistic regression analysis with 21 signicant variabl Results: es revealed, that leptospirosis positivity is signicantly
associated with the presence of cats (OR 3.774, P < 0.05, CI 316, 6.151), rodents (OR 2.041, P < 0.05, CI 1.270, 3.282) and cattle's (OR 6.350 P <
0.05, CI 3.789, 10.640) and animal handling, bathing in the pond and working in the eld and open defecation (OR 4.128, P < 0.05, CI 2.270,
7.508). Our results emphasize the importance of creating awareness about leptospi Conclusion: rosis, many identied risk factors can be easily
controlled by proper sanitation, proper drainage system and easy access to personal protective equipment
SUPPORTIVE SUPERVISION AS A TOOL FOR IMPROVING PERFORMANCE OF VACCINE STORAGE FACILITIES IN AGAR-MALWA DISTRICT OF MADHYA PRADESH
Authors: Khardenavis Archit , Sharma Ruchika , Bijlwan Aanchal , Deshpande Kirti , Bhatnagar Dinesh
Published: April 2023

Background: One of the novel interventions to improve immunization coverage is Supportive supervision which is
described as a process of helping staff involved in immunization to improve their work performance continuously. The
present study was done as a part of RIPDSS initiative with the objective to assess the effect of supportive supervision on the performance of
District & Sub-District Vaccine Storage points of Agar-Malwa district. A facility-based, cross sectional study was Material & Methods:
conducted in November & December 2022. Structured Questionnaire as a part of standard supportive supervision checklist prescribed by
Government of India was used for data collection & assessment was done based on scores obtained in various components in the rst and second
visit. On the spot problem solving along with feedback was also given to the vaccine & cold chain staff. Cumulative score of 211 Results:
(70.33%) and 246 (82%) out of 300 was obtained in the rst and second supervision visit of DVS respectively. In the rst and second visit of SubDVS, scores obtained were 132 (40.62%) and 217 (66.76%) out of 325. Apart from overall improvement, score of vaccine management
component improved in both DVS & Sub-DVS but that of CCE maintenance declined in Sub-DVS. If the logistical, physical, and Conclusion:
human resources are in place to improve service delivery, a supportive supervisory method can be more effective in enhancing the cold chain
maintenance process. Frequent follow up visits are also required for this method to be effective
PREVALENCE OF LUMBOSACRAL TRANSITIONAL VERTEBRA IN PATIENTS PRESENTING WITH LOW BACKACHE AND IT'S ASSOCIATION WITH DEGENERATIVE SPINE CHANGES ON MRI: A STUDY IN RURAL TERTIARY CARE HOSPITAL OF SOUTH INDIA.
Authors: Farheen Bushra , Madhavi CH. , Pavan Kumar M.
Published: April 2023

Introduction- Lumbosacral transitional vertebra (LSTV) is a congenital spinal anomaly dened as either sacralization
of lumbar segment or lumbarization of sacral segment of the spine. Identication of accurate level of pathology is of
utmost importance in patients undergoing surgical intervention. Failure to do so, might result in wrong level surgery, leading to signicant
morbidity.
Aims and objectivesŸ To analyze the prevalence, age and sex distribution of LSTV in low back pain patients.
Ÿ To analyze the various methods of identifying and numbering LSTV.
Ÿ To explore the relationship between LSTV and degenerative spine changes.
Materials and methods- This was a crossectional observational study done in 217 cases presented with low back pain and underwent MRI LS
spine using PHILIPS Ingenia 1.5 Tesla machine in department of radio-diagnosis at MAHARAJAHS INSTITUTE OF MEDICAL SCIENCES,
NELLIMARLA. LSTV prevalence was 18.8% in this study. Most of the patients Conclusion- with LSTV belonged to 4th and 5th decades. No
signicant sex predilection was seen. Castellvi types II & IV are the most frequent types. An association between the transitional vertebra and
herniation of the disc above was found in patients with low back pain i.e., Disc herniation was always noted above the transitional vertebra and
not below that level (L4/5 disc prolapse in sacralization and L5/S1 disc prolapse in lumbarization), Sacralization was common than
lumbarization in LSTV, approximately in the ratio of 2.3:1. The reliability of MRI ( sagittal MRI to count from C2, axial MRI to look for
iliolumbar ligaments) to identify and correctly numbering LSTV was 100 %. Severity of degenerative spine changes was slightly higher among
LSTV group than 'No LSTV' group
MANAGEMENT AND FUNCTIONAL OUTCOME OF SARS COVID-19 INDUCED RHINO ORBITAL CEREBRAL MUCORMYCOSIS
Authors: Venkateswarlu Prudhvi , Latha Latha , Mounika Mounika
Published: April 2023

Background: Rhino-orbital cerebral mucormycosis(ROCM) is an uncommon infection caused by the angiotropic
fungus belonging to the order Mucorales and has high morbidity and mortality despite treatment. Rhino-orbital cerebral
mucormycosis almost always occurs in immunocompromised hosts, including patients with uncontrolled diabetes mellitus, hematologic
cancers, and solid organ or hematopoietic stem cell transplants. The suspicion or diagnosis of rhino-orbital cerebral mucormycosis triggers a
medical as well as surgical emergency with the delay in treatment, increasing morbidity and mortality.
Aim:
1.outcome of medical management
2.functional outcome and evaluation after medical management
3.complications of mucormycosis 4.outcome after surgical management
Methods: 62 SARS covid-19 cases were evaluated who were diagnosed with rhino orbital cerebral mucormycosis.most of the patients
presented with ptosis.proptosis.orbital cellulitis,decreased visual acuity,sluggishly reacting pupils, restricted extraocularmovemets.some
patients were known diabetics and some diagnosed with diabetes after COVID 19 reovery.Retrobulbar Liposomal Amphotercin –B(3.5mg) was
given to all patients for 10 alternate days and simultaneously patients received IV LIPOSOMAL AMPHOTERCIN 300mg OD for 10days renal
function tests were monitored. 54 of them improved on day 5 of injection most patient Results: s visual acuity improved from CF –CF to
CF>6mts, patients with perception of light didn't show any improvement in visual acuity but ptosis,proptosis,conjunctival congestion and
chemosis was improved and 10 patients underwent exenteration. ROCM is seen Conclusion: in most SARS COVID 19 who were known
diabetics or post covid -19 induced uncontrolled high sugars most patients received high dose of steroids during covid 19 treatment.most patient
showed improvement of symptoms after retrobulbar IV Amphotericin 3.5mg and improvement is observed on MRI stages too and some patients
underwent exenteration which prevented furthurer spread of infection
Dall’area di Broca al sensorio digitale, trasformazioni antropologiche in atto e ‘cervelli in movimento’: una mente incorporata in un mondo digitalizzato.
Authors: Morabito Carmela
Published: April 2023

The new forms of social communication, with the increasing presence of images within the text, make us necessary to reconsider the cerebral basis of literacy and theyr reconfiguration via neural recycling.
In the theoretical framework of Embodied philosophy of mind, we propose an analysis of the ‘extended writing”, actually using emoticon and emoji, in the light of our contemporary neuropsychological knowledge (hemispheric specialization and the functional circuit of literacy).
Narratività ed embodiment della voce
Authors: Falzone Alessandra
Published: April 2023

When speaking of narrativity, a widely held idea in various disciplinary fields that identity is essentially narrative is often called into question.
Numerous linguistic, literary, neuroscientific, and evolutionary studies corroborate this idea. In reality, narrativity in these different fields of study often means different objects of inquiry, which have different definitions and describe different processes and, therefore, different cognitive capacities.
In this paper, we will consider the notion of narrativity as a cognitive process, that is, as a component of the human mode of knowledge construction. As such, narrativity would constitute a cognitive universal.
From this definition, we will show how narrativity is an eminently linguistic process made possible by the body technology of language and voice in particular.
Finally, we will argue for the constitutive and bodily role of language for narrativity in ontogenetic development and inner speech.
Identità narrativa e memoria autobiografica: prospettive per un dialogo interdisciplinare
Authors: Feyles Martino
Published: April 2023

The essay proposes a reflection on narrative and storytelling, on the idea of the subject and personal identity, based on Ricoeur's philosophy but from a broader constructivist and bio-psycho-social perspective. Narrative as the construction of meaning and the construction of coherence becomes, in this sense, a lens through which to look at the new philosophies of mind and their fruitful interaction with psychology and cognitive neuroscience.
The Clinical and Economic Impact of Employees Who Are Care Partners of Patients with Multiple Sclerosis by Disease Severity
Authors: Hendin Barry , Brook Richard , Beren Ian , Kleinman Nathan , Fink Cindy , Phillips Amy , Lobo Carroline
Published: April 2023

Background: Research on employee care partners of patients with multiple sclerosis (MS) is limited. Objectives: The clinical and economic impact on employee care partners was evaluated by MS disease severity. Methods: Employees with spouses/domestic partners with MS from the Workpartners database (Jan. 1, 2010–Dec. 31, 2019) were eligible if: spouse/partner had at least 3 MS-related (ICD-9-CM/ICD-10-CM:340.xx/G35) inpatient/outpatient/disease-modifying therapy claims within 1 year (latest claim = index date); 6-month pre-index/1-year post-index enrollment; and age 18 to 64 years. Employee care partners’ demographic/clinical characteristics and direct/indirect costs were compared across predetermined MS severity categories. Logistic and generalized linear regression modeled the costs. Results: Among 1041 employee care partners of patients with MS, 358 (34.4%) patients had mild MS, 491 (47.2%) moderate, and 192 (18.4%) severe. Mean (standard error [SE]) employee care partner age was 49.0 (0.5) for patients with mild disease, 50.5 (0.4) for moderate, 51.7 (0.6) for severe; percent female care partners was 24.6% [2.3%] mild, 19.8% [1.8%] moderate, 27.6% [3.2%] severe; and mean care partner Charlson Comorbidity Index scores 0.28 (0.05) mild, 0.30 (0.04) moderate, 0.27 (0.06) severe. More care partners of patients with moderate/severe vs mild MS had hyperlipidemia (32.6%/31.8% vs 21.2%), hypertension (29.5%/29.7% vs 19.3%), gastrointestinal disease (20.8%/22.9% vs 13.1%), depression (9.2%/10.9% vs 3.9%), and anxiety 10.6%/8.9% vs 4.2%). Adjusted mean medical costs were greater for employee care partners of patients with moderate vs mild/severe disease (P<.001). Pharmacy costs (SE) were lower for employee care partners of mild vs severe/moderate patients (P<.005). Sick leave costs (SE) were greater for employee care partners of mild/severe vs moderate patients (P<.05). Discussion: Employee care partners of patients with moderate/severe vs mild MS had more comorbidities (ie, hypertension, gastrointestinal disease, depression, and anxiety) and higher pharmacy costs. Employee care partners of patients with moderate vs mild/severe MS had higher medical and lower sick leave costs. Treatment strategies that improve patient outcomes may reduce employee care partner burden and lower costs for employers in some instances. Conclusions: Comorbidities and direct/indirect costs of employees whose spouses/partners have MS were considerable and varied with MS severity.
IMPROVING THE QUALITY OF LOGISTIC CAPACITIES OF THE URBAN PUBLIC PASSENGER TRANSPORT USING MULTIMODAL INNOVATIVE TRANSPORT TECHNOLOGIES
Authors:   Doctoral student, the Department of “Transport Logistics”   Tashkent State Transport University, Atajanov M. K.
Published: April 2023

The article describes the stages of the development of bicycle infrastructure in urban public transport using multimodal transport technologies. The results of a survey among more than 200 residents and guests of Tashkent were analyzed to determine the importance of the development of bicycle infrastructure. The outcomes of the analysis are based on the fact that the popularization of cycling among the population is not only an improvement in cycling infrastructure but also the integration of cycling into the existing urban public transport system (UPTS). To compare the effectiveness of cycling with the movement of passengers on existing vehicles in the city, the movement of existing vehicles and bicycles in the centre of Tashkent and beyond with the participation of students from the Tashkent Institute of Design, Construction of Automotive Roads has been studied. The analysis compared the time, money, energy consumption and speed of movement on various modes of transport from point A to point B. The effectiveness of implementing the bicycle infrastructure in cities, based on the principle of door-to-door multimodal transport technology, was substantiated.
THE WAYS TO INCREASE THE VOLUME OF RAW-SILK PRODUCTION IN THE SILK INDUSTRY
Authors:   Independent Researcher, Deputy Director  Uzbek Scientific-Research Institute of Natural Fibers, Mukhamadrasulov Sh. Kh. , Akhunbabaev O. A. ,   Doctor Of Technical Sciences, Professor, Director   Uzbek Scientific-Research Institute of Natural Fibers, Valiev G. N. ,   Doctor of Technical Sciences, Head of the Department   The Ferghana Polytechnic Institute
Published: April 2023

The article presents the research results to increase the volume of raw silk in the silk industry. Increasing the volume of cocoon harvesting, raw silk production and quality of the product is an urgent task today. The purpose of the research is to develop a new structure for mulberry plantations, which will increase the yield of mulberry leaf and thereby increase the volume of raw silk production in the silk industry. Methods have been developed for cultivating a new structure of a low-stemmed 1-tier 2-fist plantation of checkerboard order, plantations with double rows and united double rows. The leaf yield obtained from the plantation was 582.8 centners per hectare, the cocoons obtained 3.5 tons and raw silk 570.9 kg. The leaf yield obtained from a plantation with three and four combined double rows was 419.6-512.9 centners per hectare, cocoons obtained 2.5-3.1 tons and raw silk 411.0-502.4 kg. With a small land area, a 1-tier 2-fist plantation of checkerboard order is recommended, with a large land area – a plantation with three and four combined double rows, with additional production of other plant crops from the land plot – a plantation with double rows.
INFLUENCE OF THE ALIMINUM OXIDE PROCURSOR ON THE PROCESS OF FORMATION OF SODIUM ALUMINATES IN THE ADSORBENT COMPONENTS
Authors:   Researcher  Uzbek Research Chemical Pharmaceutical Institute, Mustafaev B. D. , Turdiyeva D. P. ,   Junior Researcher  Uzbek Research Chemical Pharmaceutical Institute, Kurbanova D. G. ,   Junior Researcher  Uzbek Research Chemical Pharmaceutical Institute, Rakhimzhonov B. B. ,   Doctoral Student   Uzbek Research Chemical Pharmaceutical Institute, Isaeva N. F. ,   Senior Researcher  Center for Advanced Technologies under the Ministry of Innovative Development of the Republic of Uzbekistan, Sattarova Sh. G. ,   Junior Researcher   Center for Advanced Technologies under the Ministry of Innovative Development of the Republic of Uzbekistan
Published: April 2023

The aim of the research is to study the formation of sodium aluminates - centres that are actively chemisorbed in acidic impurities consisting of powder components made from imported aluminium hydroxide and processed on alumina absorbent, with variations of the conditions of their alloying with the same amount of the sodium hydroxide. It was found that in the high-temperature samples, the absorption properties and the suppression potential activity in undesirable side oligomerization reactions are determined by the amount of the formed Na7Al3O8 phase, and NaОН.Н2О and Na2СО3 in the pore volume. The granules processed on alumina adsorbent allow for achieving the optimal combination of HCl adsorption volume and surface adsorption features without high-temperature processing.
ASSESSMENT OF RELIABILITY INDICES OF ELECTROMECHANICAL EQUIPMENT OF SPECIAL SELF-PROPELLED ROLLING STOCK
Authors:   PhD student, Associate professor of the Department of Transport Logistics and Service   Tashkent Institute of Railway Engineers, Mukhamedova Z. G.
Published: April 2023

The study highlights the factors affecting the basic reliability indices of special self-propelled rolling stock (SSPRS), rail service cars and rail inspection cars, such as mean time to failure, the probability of failure-free operation, the failure rate, and gamma-percentage resource. Methods for their determination are indicated, and their quantitative assessment is made. It is shown that individual units of electromechanical equipment working in conjunction with an asynchronous motor, clutches and actuators have a superimposed exponential and normal law of probability distribution to failure. The formula to determine the distribution density, which is necessary to adjust the SSPRS reliability is described.
NEW IMPORT-SUBSTITUTING ANTISCALANT FOR MEMBRANE DESALINATION SYSTEM
Authors:   PhD student  Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Garipov I. T. , Yuldashev A. B. ,   Junior Researcher  Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Gapurova O. U. ,   Junior Researcher  Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Abdukhakimov M. K. ,   PhD student  Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Khaydarov R. R. ,   PhD in Physical and Mathematical Sciences, Head of the Laboratory of Interdisciplinary Technologies  Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan, Sadikov I. I. ,   Professor, Director  Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan
Published: April 2023

The paper deals with a new import-substituting antiscalant to protect reverse osmosis membranes of water desalination systems in Uzbekistan. The studies show that during the purification of natural brackish waters typical for Uzbekistan, the reverse osmosis membrane is contaminated by mineral salts and colloidal particles, which leads to the reduction of the membrane capacity and service life of expensive reverse osmosis water treatment systems. The developed import-substituting antiscalant has proved to prevent the sedimentation process on membranes, and to have technical specifications almost identical to its more expensive foreign analogues. Since 2020 water desalination systems using the new antiscalant have been widely used in Uzbekistan to provide the population of the Republic with high-quality drinking water.
DEVELOPMENT OF SILK, COTTON, GARDEN AND GRAIN IN THE SOUTH OF UZBEKISTAN DURING THE ANCIENT EASTERN CIVILIZATION OF THE OKS
Authors:   Doctor of Historical Sciences, Professor , Pedagogical University named after Nizami, Askarov A , Zhou S ,   ekspert (Xitoy) , Center of Archаeology of the Academy of Sciences of the Republic of Uzbekistan, Xasanov M ,   Senior Researcher, Independent Researcher , Center of Archаeology of the Academy of Sciences of the Republic of Uzbekistan
Published: April 2023

The article provides the results and conclusions on the study of the history of development of agriculture on the territory of modern Uzbekistan. In particular, thanks to excavations in the Sapallitepa settlement, traces of silk, remains of silkworm caterpillars, seeds of cotton and other crops were found. It was concluded that from the II millennium BC. silk was produced and cotton was grown in Uzbekistan; there was also gardening and irrigated agriculture in the form of cultivation of grain crops.
CHANGES IN REPRODUCTIVE INDICATORS OF BREEDS-COMPONENTS OF NEW INDUSTRIAL SILKWORM HYBRIDS AS A RESULT OF SELECTION
Authors:   Senior Researcher,  Scientific Research Institute оf Sericulture, Larkina Elena , Yakubov Axmatjon ,   Doctor of Biological Sciences, Professor , Scientific Research Institute оf Sericulture, Akilov Ulug'bek ,   Junior Researcher , Scientific Research Institute оf Sericulture, Salikhova Klaram ,   Junior Researcher , Scientific Research Institute оf Sericulture
Published: April 2023

The article explains that the silkworm is bred worldwide only as first-generation hybrids for maximum heterosis. The study supports the idea that the effect of heterosis will be significant if the breed components of the created hybrids have outstanding properties. Therefore, the selection of breeds with certain characteristics necessary for silkworm breeders in the future is very important. It is equally important that these characteristics are as high and stable as possible. For this, breeding work is carried out with component breeds aimed at improving certain characteristics. In this study, the selection is aimed at the reproductive properties of breeds. Selection and breeding work for three years has seriously changed some of the indicators of Gren. It has been demonstrated that targeted selection to improve the reproductive performance of breeds I-120, Chinese 108, MG, Ipakchi 2, leads to an increase in the number of normal eggs in the clutch and to a decrease in physiological marriage.
ANALYTICAL-NUMERICAL METHOD FOR CALCULATING A HYDROFRICTION DAMPER OF ELECTRIC ROLLING STOCK
Authors:   Doctor of Technical Sciences, Professor of the Department «Locomotives and Locomotive Economy»  Tashkent State Transport University, Khromova G. A. , Mahamadalieva M. A. ,   Doctoral Student of the Department «Locomotives and Locomotive Economy»  Tashkent State Transport University
Published: April 2023

The paper studies the problem of modeling vibrations of a torsion hydro-friction damper of a locomotive with the support of hydrodynamic friction based on the application for a Patent of the Republic of Uzbekistan. The objectives of the authors’ invention are: to improve the reliability and damping capacity of the damper as a whole, with the provision of horizontal and vertical damping of vibrations and shock loads, which is important to increase the speeds of the rail transport; to increase the dynamic factor of the system while regulating the damping capacity by creating an additional friction torque to reduce dynamic load on the cantilever section of the shaft fixed to the bogie frame of the vehicle. It is possible to predict various hydromechanical systems using a similar analytical-numerical method, i.e. to analyze the dynamic functioning of hydraulic and hydro-friction torsiontype vibration dampers for electric rolling stock. Dynamic bench tests were carried out at a depot in Uzbekistan. A torsion type of hydrofriction vibration damper was used for testing an upgraded (new) construction.
DETERMINATION OF THE STATE OF CURRENT COLLECTOR STRIPS OFPANTOGRAPH USING AN ACCELEROMETER
Authors:   First Category ,Specialist  Ministry of Innovative Development, Abdurakhmanov Bahodir , Mirsaitov Mirziyod ,   Head of the Transport Infrastructure Development department,  Ministry of Innovative Development,, Vikulov Ilya ,   Associate Professor of Electric Traction Department  ,Emperor Alexander I St. Petersburg State Transport University
Published: April 2023

The work describes a method for determining the current collector strips of pantograph electric locomotive current collectors using an accelerometer to increase the reliability of current collectors and reduce the time for their operation. In view of the large number of failures that occur during the operation of pantographs, there is an urgent need to determine the state of the contact strips. The presented diagnostic system will allow for assessing the wear of the contact strips. The article provides diagnostic parameters for determining the state of current collector strips, as well as a method for determining the types of wear of current collector strips for various values of diagnostic parameters. The method for determining the state of collector strips is based on the vibration movements of the collector strips. During the operation of the current collector, wear of the collector strips occurs, which leads to a decrease in the mass of the collector strips. The vibrational acceleration of the collector strips changes according to the mass change, The change in vibrational acceleration is estimated using an accelerometer. Accelerometers can be easily mounted on the pantograph, and they will not affect the operation of the pantographs due to their small size and weight. The reliability of scientific statements and results is justified theoretically and confirmed by experimental studies. All theoretical and experimental studies were carried out in laboratory conditions.
COMPLEXING OF GEOPHYSICAL METHODS FOR SOLVING ENGINEERING AND GEOLOGICAL PROBLEMS (ON THE EXAMPLE OF PISTALITAU FOOTHILLS)
Authors:   Master of the Department of Geophysical Research Methods, Faculty of Geology and Geoinformation systems , National University of Uzbekistan, Oripov N , Zakirov A ,   Candidate of Technical Sciences, Senior Researcher , Center for Advanced Technologies laboratory of Geophysics and Nanomineralogy
Published: April 2023

Today, the need for new sites for the construction of modern facilities is growing every year as a result of the rapid development of “construction of buildings and industrial facilities” in the new Uzbekistan. New, sparsely populated and ecologically clean territories are selected for industrial facilities, and the selected territories are studied in detail using modern geophysical methods to improve the quality of construction and increase the level of durability of buildings and structures. The following article is devoted to the study of the geological structure, as well as geophysical properties using shallow geophysics in the design and construction of buildings and industrial structures that will be built in the foothills of the Pistalitau. The study used engineering and geophysical methods, such as seismic tomography - the method of refracted waves and electrical sounding - vertical electrical sounding. As a result of geophysical work, the seismic properties of the medium were determined from the velocities of propagation of primary and shear waves by the method of refracted waves, as well as the thickness of Quaternary deposits and the specific electrical resistivity of rocks were determined by the method of vertical electrical sounding. Based on the results of the study, the authors have constructed velocity models of the environment, maps of reflecting boundaries, and geoelectric sections. Geophysical data obtained as a result of the above works - shear wave velocity, the density of soil layers, groundwater level - are used as important parameters in the design of buildings and industrial structures in the foothills of Pistalitau.
FACTORS INFLUENCING THE CHOICE OF METHODS FOR RECONSTRUCTION OF WATER TREATMENT FACILITIES IN UZBEKISTAN
Authors:   Assistant of Minister  Ministry of Innovative Development, Azimov A. S. , Okhremenko I. M ,   PhD Water Supply and Sewerage, Associate Professor  Tashkent State Transport University
Published: April 2023

The article examines the state of water treatment facilities as a factor of environmental safety and sustainability. Prevention of negative impacts of engineering communications, in particular sewage systems, on the environment and the elimination of a number of environmental problems are directly related to reconstruction and modernization of water treatment facilities, built in the middle of the last century and before independence. Consequently, we have analyzed information about wastewater treatment plants in the country in the context of regions. Both, the effectiveness of treatment facilities with an account of the year of their construction in 1955-1980, 1955¬1980, 1981-2000, 2001-2020 and the reasons of their low efficiency have been reviewed. Particular attention was paid to the importance of ensuring that the quality of the treated water meets the required level by renovating treatment facilities while reducing financial costs. A number of organizational, technological, technical, and economic measures related to restoration and reconstruction of treatment facilities have been discussed, and the stages of their implementation - shown schematically. As well as factors influencing the choice of methods for reconstruction of treatment facilities in Uzbekistan have been elucidated
THE IMPACTS OF THE RATES OF SOWING SEEDS AND NITROGEN-MINERAL FERTILIZERS ON THE GROWTH OF THE RICE OF ‘GULJAKHON’ VARIETY
Authors:   PhD Agricultural Sciences Deputy Director  Rice Research Institute, Kalandarov B. I.
Published: April 2023

This article describes the impacts of the seeding rates of seeds and nitrogen fertilizers on the field germination as well as on preservation of plants and forming of the leaf area and dry mass of the rice of Guljakhon variety. With an increase in the seeding rate from 3 to 6 million pieces per hectare, the field germination rate has decreased by 17,9 %, and the survival rate of plants before harvest has improved by 2,4%. Increased levels of nitrogen fertilizers from N90 to N150 have improved the field germination by 1.9 %, and have dropped preservation of plants before harvest by 2,3%. It has been revealed that the plant height (r = 0,49) is positive, the leaf area (r = -0,67), and dry weight of plants (r = -0,73) negatively correlate with the seeding rate. The nitrogen nutrition dose has a positive relationship with the leaf area (r = 0,64), dry weight of plants (r = 0,55) and plant height (r = 0,88).
SOME ASPECTS OF THE SYNTHESIS OF MODERN ZEOLITE ADSORBENTS - DEHYDRATOR OF THE TYPE ‘A’ (4A)
Authors:   Doctor of Technical Sciences, Professor, Head of Laboratory  Uzbek Scientific Research Chemical-Pharmaceutical Institute, Yunusov M. P. , Gulomov Sh. T. ,   PhD in Technical Sciences Senior Researcher  Uzbek Scientific Research Chemical-Pharmaceutical Institute, Sultanov A. R. ,   Technician-engineer  Uzbek Scientific Research Chemical-Pharmaceutical Institute, Gashenko G. A. ,   Senior Researcher  Uzbek Scientific Research Chemical-Pharmaceutical Institute, Isaeva N. F. ,   PhD, in Technical Sciences, Senior Researcher, Centre of Advanced Manufacturing Sciences  Ministry of Innovative Development of the Republic of Uzbekistan
Published: April 2023

The current tendency in the production of adsorbents is the development of zeolites with a complex of adsorption properties and high mechanical strength. The main raw materials for the synthesis of zeolites LTA (NaA and its exchangeable forms), FAU (NaX, NaY and their exchangeable forms) are traditionally sodium aluminate and sodium silicate gels, as well as kaolin clays. This piece of work reviews the impacts of the raw mixture’ components on the properties of the type ‘A’ zeolite adsorbents obtained by the recrystallization of kaolinite method. The aim of the research is an attempt to develop a technology for the synthesis of zeolite adsorbents, the main crystalline phase of which is zeolite A, using raw materials containing signifi cant amounts of impurity minerals (quartz, illite). Characteristics of the samples of the zeolite adsorbents synthesized using Angren kaolin and the spent alumina adsorbents, which are the waste products from the Bukhara refinery, are presented. In general, the work is focused on the use of the kaolin raw materials somewhat depleted in aluminum and kaolinite in production of zeolite adsorbents - dehydrator of hydrocarbon and other gases used for technological purposes. Interesting results were achieved when a sodium aluminate solution based on the spent alumina adsorbents had been used in the crystallizable reaction mixture, preformed in the form of granules. The obtained samples were composite and featured the property of surface adsorption of benzene, the desorption of which occurs at a high rate. The developed technology enables obtaining zeolite-containing adsorbents with a wide range of adsorption-desorption properties.
MODELING THE WEAR OF CONTACT STRIPS OF PANTOGRAPH USING THE MATLAB - SIMULINK TOOLS
Authors:   Head Of Transport Infrastructure Development Dpt  Ministry of Innovative Development, Mirsaitov M. M. , Abdurakhmanov B. B. ,   1st Category Specialist  Ministry of Innovative Development, Vikulov I. P. ,   Associate Professor of Electric Traction Department  Emperor Alexander I St. Petersburg State Transport University
Published: April 2023

The article presents a mathematical model of the wear of contact strips of pantograph which is destined to define a diagnostic parameter for determining pantograph of the freight electric locomotives in the Republic of Uzbekistan. Existing mathematical models of pantograph - contact network interactions are considered in the form of multidimensional models with reduced masses. The Matlab - Simulink tools can be used for solving the mathematical models. Computer programs for solving mathematical models enable efficient calculations at high accuracy. During the simulation, the current pantograph-contact network system was considered as a twodimensional model with two degrees of freedom. The simulation results helped determine the diagnostic parameter of the “vibration acceleration” of the contact strips. Finding a diagnostic parameter is based on vibrational movements of the pantograph skid interacting with the contact network.