scholarly journals Investigating operator vibration exposure time of 13 hp power tiller fuelled by diesel and biodiesel blends

2014 ◽  
Vol 60 (No. 4) ◽  
pp. 134-141 ◽  
Author(s):  
B. Heidary ◽  
S.R. Hassan-Beygi ◽  
B. Ghobadian
Keyword(s):  
Exposure Time ◽  
Engine Speed ◽  
Latency Period ◽  
Vascular Diseases ◽  
The Body ◽  
Vibration Exposure ◽  
Reciprocal Effect ◽  
Long Time ◽  
Power Tiller ◽  
High Level

One of the most useful agricultural machinery is power tiller; this kind of tractor is widely used in small fields. The operators of this kind of machinery are exposed to high level of vibration. Long time working with these machinery causes dynamic disorders, damaging different parts of the body, digestion disorders and vascular diseases. In this research, vibration acceleration of 13hppower tiller was collected in 5 levels of engine speed and 6 kinds of consumed fuel blends investigating the power tiller vibration exposure time. The data were analyzed by factorial tests with completely random design. The results showed that reciprocal effect of fuel and engine speed are prominent in 1% level. The working conditions of the power tiller operator fall into the highest class of risk according to ISO 5349-2 (2001) and in less than 4 years White Finger Syndrome may have induced in 10% of operators. Results of experiments revealed that the exposure time decreases with increase in engine speed especially in 1,800 and 2,200 rpm. The reason is the vibration intensification that happened in handle of power tiller in 1,800 rpm engine speed so it reduced the exposure time severely. The latency period for the appearance of vibration-induced White Finger Syndrom in biodiesel 10%, 15% and 20%, respectively, so using diesel fuel can be replaced by these three kinds of fuel in power tillers.

scholarly journals Olanzapine-high potency antipsychotic drug inducing significant weight gain: A case report

2008 ◽  
Vol 136 (5-6) ◽  
pp. 284-288 ◽  
Author(s):  
Nadja Maric ◽  
Dragana Josifovic-Kostic ◽  
Olivera Vukovic ◽  
Dubravka Britvic ◽  
Miroslava Jasovic-Gasic
Keyword(s):  
Weight Gain ◽  
Psychotic Disorders ◽  
Vascular Diseases ◽  
Initial Response ◽  
Young Female ◽  
The Body ◽  
Average Weight ◽  
Therapeutic Effects ◽  
Significant Weight Gain ◽  
High Level

INTRODUCTION Olanzapine is a second generation antipsychotic (SGA) with a high level of therapeutic effectiveness in schizophrenia and other psychotic disorders. Along with the positive therapeutic effects, an increase of the body weight frequently occurs. According to the literature, the average weight gain is about 6-7 kg during several months of treatment. This could be valued as a moderate weight increase. CASE OUTLINE This article presents a case of a young female with schizophrenia, without clinical improvement with several antipsychotics (clozapine, risperidone, haloperidol) and with the occurrence of significant neurological side effects. The treatment started with olanzapine (baseline) was associated with good initial response (PANSS reduction 20% in the first two weeks) and the improvement was maintained further on (PANSS reduction 50% after 16 weeks). Significant increase (20 kg, 40%) in weight appeared during the following 16 weeks (BMI at baseline 17.9 kg/m2; BMI 16 weeks later 25.1 kg/m2). CONCLUSION High effectiveness of olanzapine in schizophrenia symptoms reduction was accompanied by a significant weight gain. However, this drug leads to impaired glucoregulation, dyslipidaemia etc. It also increases the risk of diabetes and cardio-vascular diseases, i.e. the main causes of mortality in schizophrenia after a suicide. Therefore, clinicians are suggested to focus on possible predictors of weight gain during olanzapine therapy, and act accordingly in order to prevent serious health consequences.

scholarly journals Performing Homework on Physical Education by Students to Increase the Level of Physical Qualities

2020 ◽  
pp. 55-58
Author(s):  
Sergey Anatolevich Leshkevich ◽  
Vadim Anatolevich Leshkevich ◽  
Nataliya Nikolaevna Lipovaya ◽  
Elena Ivanovna Potyomkina ◽  
Svetlana Yurevna Kargina
Keyword(s):  
Physical Activity ◽  
Physical Education ◽  
The Body ◽  
Theoretical Assumption ◽  
Active Lifestyle ◽  
Young Males ◽  
Young Females ◽  
Long Time ◽  
High Level

The question on the need to perform homework on physical education for students in the form of additional physical activity is considered in the article. The problem of motor activity lack is studied and a solution presented in the form of certain exercises set in order to accustom the student to regular physical activity is found. The positive and negative aspects of this innovation are considered. Method of research. To confirm the theoretical assumption about the benefits of doing homework, a study that lasted for three months was conducted. The study engaged 60 students (30 young males and 30 young females) aged 17-19 years, in which they were divided equally by gender into 2 groups – control (CG) and experimental (EG). The results of the study. As a result of experiment, after doing homework for 3 months, improvements in student’s physical qualities in the experimental group could be observed. Among them: strength, endurance, flexibility, dexterity, speed and coordination of movements. It is concluded that due to physical exercises performed independently at home, the blood supply to the muscles and regulation of their activity by the nervous system improves – muscle mass increases, the immune system strengthens and, consequently, health improves, endorphins are produced in the body, so students feel better after training. Also, training the muscular system increases endurance in conditions of both physical and mental stress, thanks to an active lifestyle, the body's metabolic rate remains at a high level for long time, which prevents aging. Regular exercise makes it easier to fall asleep and improves the quality of sleep.

Compensatory-adaptive mechanism of cardiorespiratory system in athletes’ fatigue state

2019 ◽  
pp. 98-104
Author(s):  
Artem Savelyev
Keyword(s):  
The Body ◽  
Training Process ◽  
Cardiorespiratory System ◽  
Functional Capabilities ◽  
Preparatory Period ◽  
Long Time ◽  
Competition Period ◽  
Sufficient Degree ◽  
Preparatory Stage ◽  
High Level

At the present level of sports development, the search for opportunities to improve the performance and endurance of athletes is one of the most important terms for achieving high sports results. Performing physical activity at the limit level makes increased demands on the ac-tivity of the body, requires more significant adaptive changes in the functioning of all organs and systems, but it allows to raise the overall level of efficiency. Factors that determine the effective-ness of combinations of training loads are the volume of loads, their direction and sequence of ex-ecution. Consideration of these factors should be reflected in the organization of the training process. The combination of training loads aimed at the education of general, special and strength endurance should be most often used in the general preparatory stage of the preparatory period, and the combination of loads aimed at the education of special, speed and strength endurance – in the special preparatory stage of the preparatory period and in the competitive period. Planning the volume and intensity of the training load and its implementation should correspond to the functional capabilities of the athlete’s body. To prevent the probability of any deviation from normal functioning of energy sustaining systems of the body, one needs a speedy and effective recovery of these systems. Only in this case the training process can proceed quite systematically, and the results of the trainee will become more stable at all stages of the competition period. All this makes it relevant to study the processes of rational interaction of cardiorespiratory and motor systems of the body during training and competition. This knowledge allows with a sufficient degree of accuracy to determine the development of the performance of athletes, optimize the training process, improve its quality and efficiency, maintain a high level of performance for a long time.

scholarly journals Assessment of hand-transmitted vibration in self propelled vertical conveyor reaper

2020 ◽  
Vol 13 (2) ◽  
pp. 167-174
Author(s):  
T.R. Gururaj ◽  
A.K. Mehta
Keyword(s):  
Engine Speed ◽  
Prolonged Exposure ◽  
Medium Size ◽  
Frequency Spectra ◽  
Band Frequency ◽  
Operational Conditions ◽  
Single Cylinder Engine ◽  
Long Time ◽  
Vertical Conveyor ◽  
High Level

The self propelled vertical conveyor reaper is commonly used for harvesting wheat, rice etc. It has become a main or the sole of mechanical power source on small and medium size farms in India. The operators of VCR are exposed to a high level of vibration arising from single cylinder engine during field operations. The vibration from the VCR is transmitted from handle to hands, arms and shoulders. The detrimental effect of the prolonged exposure to hand-transmitted vibration on the operators has been known for a long time. In the present study, experiments were conducted to assess the vibration extent in VCR for two operational conditions i.e. transportation on bitumen road and wheat harvesting operation. The vibrations were measured at engine speed 2200 and 2800 rpm. In this study it was found that the vibration magnitudes decreased with increase in engine speed from 2200 to 2800 rpm in both operational conditions. The highest vibration values were observed in x-direction. The maximum frequency-weighted vibration acceleration (rms) in x-direction was 18.76 and 22.8 ms-2 in transportation and wheat harvesting. One third octave band frequency spectra were also obtained. The peak acceleration appeared around 50 Hz for both transportation and wheat harvesting at engine speed 2200 and 2800 rpm. The average 8 hour exposure time for occurrence of white finger syndrome was 1.16 and 0.93 years at transportation and wheat harvesting operation.

scholarly journals PERBEDAAN LAMA WAKTU PAlANAN TERHADAP KANDUNGAN TIMBAL PADA MAKANAN JAlANANGORENGAN YANG DIJUAL DI ALUN-ALUN KOTA MADIUN TAHUN 2014

2014 ◽  
Vol 12 (2) ◽  
Author(s):  
Evi Damayanti ◽  
Rusmiati . ◽  
Lilis Prihastini
Keyword(s):  
Exposure Time ◽  
Threshold Limit Value ◽  
The Body ◽  
Motor Vehicles ◽  
Test Results ◽  
Limit Value ◽  
Significant Difference ◽  
Systemic Impact ◽  
Long Time ◽  
Lead Metal

One of the pollutants produced by motor vehicles is lead (Pb). Lead (Pb) is a toxic anddangerous heavy metal to the environment and have a systemic impact in human bodies. Lead (Pb) canenter the body through inhalation, snacks sold on the roadside without cover. This will be even moredangerous if the food is exposed for a long time. The purpose of this research was to determine the levelsof lead (Pb) in snacks based on exposure time during peddling in Madiun square in 2014.The research followed pre-experimental design using posttest only protocol. Data collection wasdone by sampling, documentation and observation. The population under study was the food peddlers offried soybean cakes along the roadside around Madiun square. The samples to be examined were friedsoybean cakes, in 3 replications and to be performed 3 times in each treatment and the exposure time ofthe 9 samples. Sampling was drawn by random sampling and data was to subjected to descriptiveanalysis.The results obtained from this research include the facts that all samples did contain heavymetals lead (Pb). The average levels of lead (Pb) before exposure was <0.01 .rnq / I, after an hourexposure was 0,021 mg / I, and after 2 hours of exposure was 0,033 mg / I. The concentration of lead(Pb) remained below the designated requirement, the Threshold Limit Value established by the DirectorGeneral of POMNo. HK.00.06.1.52.4011 regarding the maximum limit of lead metal contamination in food.One way ANOVA statistical test results obtained (p) > a so that HO means no Significant differencebetween exposure times i.e. a hours, 1 hour, and 2 hours in term of the lead content.The conclusion of this study is: there was no significant difference in lead content in snacks,namely the soybean cakes with the exposure time of 0 hours, 1 hour, and 2 hours, although there was anincrease based on the length of exposure time. Pedlers are encouraged to use a cloth cover / Stelling toreduce contamination of lead (Pb). Further research is necessaryto study the aerial concentration of leadin Madiun square.

Neurophysiological and morphological effects in the post-exposure vibration period during experimental modeling

2019 ◽  
pp. 284-290
Author(s):  
Natalya L. Yakimova ◽  
Vladimir A. Pankov ◽  
Aleksandr V. Lizarev ◽  
Viktor S. Rukavishnikov ◽  
Marina V. Kuleshova ◽  
...  
Keyword(s):  
Nervous System ◽  
Evoked Potentials ◽  
Experimental Model ◽  
Visual Evoked Potentials ◽  
The Body ◽  
Behavioral Activity ◽  
Contact Period ◽  
Vibration Exposure ◽  
Visual Evoked

Introduction. Vibration disease continues to occupy one of the leading places in the structure of professional pathology. In workers after the termination of contact with vibration generalization and progression of violations in an organism is noted. The pathogenetic mechanisms of the progredient course of disturbances in the nervous system in the post-contact period of vibration exposure remain insufficiently studied.The aim of the study was to test an experimental model of vibration exposure to assess the neurophysiological and morphological effects of vibration in rats in the dynamics of the post-contact period.Materials and methods. The work was performed on 168 white male outbred rats aged 3 months weighing 180–260 g. The vibration effect was carried out on a 40 Hz vibrating table for 60 days 5 times a week for 4 hours a day. Examination of animals was performed after the end of the physical factor, on the 30th, 60th and 120th day of the post-contact period. To assess the long-term neurophysiological and morphofunctional effects of vibration in rats, we used indicators of behavioral reactions, bioelectric activity of the somatosensory zone of the cerebral cortex, somatosensory and visual evoked potentials, parameters of muscle response, morphological parameters of nervous tissue.Results. In the dynamics of the post-contact period observed the preservation of violations of tentatively research, motor and emotional components of behavior. In the Central nervous system instability of activity of rhythms of an electroencephalogram, decrease in amplitude of visual evoked potentials, lengthening of latency of somatosensory evoked potentials, decrease in total number of normal neurons and astroglia is established. In the peripheral nervous system remained changes in indicators: increasing duration and latency, reducing the amplitude of the neuromuscular response.Conclusions: The experimental model allows us to study the long-term neurophysiological and morphological effects of vibration on the body. The formation and preservation of changes in behavioral activity, neurophysiological and morphological effects of vibration from the 30th to the 120th day of the post-contact period were confirmed.

To the memory of the geobotanist. Leonid E. Rodin (to the 100th anniversary of his birthday)

2007 ◽  
pp. 106-107
Author(s):  
B. K. Gannibal
Keyword(s):  
End Of Life ◽  
100Th Anniversary ◽  
State University ◽  
Botanical Institute ◽  
Komarov Botanical Institute ◽  
The Future ◽  
Long Time ◽  
High Level

Leonid Efimovich Rodin (1907-1990) was a graduate of Leningrad state University. To him, the future is known geobotanica, happened to a course in Botanical geography is still at the N. A. Bush. His teachers were also A. P. Shennikov and A. A. Korchagin, who subsequently headed related Department of geobotany and Botanical geography of Leningrad state University. This was the first school scientist. And since the beginning of the 30s of XX century and until the end of life L. E. was an employee of the Department of geobotany of the Komarov Botanical Institute (RAS), where long time worked together with E. M. Lavrenko, V. B. Sochava, B. A. Tikhomirov, V. D. Alexandrova and many other high-level professionals, first continuing to learn and gain experience, then defining the direction of development of geobotany in the Institute and the country as a whole.

Nutrients Mediate Bioavailability and Turnover of Proteins in Mammals

2019 ◽  
Vol 20 (7) ◽  
pp. 661-665
Author(s):  
Cunxi Nie ◽  
Fei Xie ◽  
Ning Ma ◽  
Yueyu Bai ◽  
Wenju Zhang ◽  
...  
Keyword(s):  
The Body ◽  
Biologically Active ◽  
Nitrogen Excretion ◽  
Dietary Proteins ◽  
Restricted Diet ◽  
Nutritional Interventions ◽  
Body Tissues ◽  
Utilization Of Protein ◽  
High Level ◽  
Protein Restricted Diet

As a major component of biologically active compounds in the body, proteins contribute to the synthesis of body tissues for the renewal and growth of the body. The high level of dietary protein and the imbalance of amino acid (AA) composition in mammals result in metabolic disorders, inefficient utilization of protein resources and increased nitrogen excretion. Fortunately, nutritional interventions can be an effective way of attenuating the nitrogen excretion and increasing protein utilization, which include, but are not limited to, formulating the AA balance and protein-restricted diet supplementing with essential AAs, and adding probiotics in the diet. This review highlights recent advances in the turnover of dietary proteins and mammal’s metabolism for health, in order to improve protein bioavailability through nutritional approach.

scholarly journals Corticobasal Degeneration Misdiagnosed As Musculoskeletal Disease: A Challenging Diagnosis of Higher-Level Gait Disease

2020 ◽  
Vol 11 (04) ◽  
pp. 640-642
Author(s):  
Halil Onder
Keyword(s):  
Corticobasal Degeneration ◽  
The Elderly ◽  
Gait Disorders ◽  
Physiological Changes ◽  
Gait Abnormality ◽  
Age Related ◽  
Musculoskeletal Problems ◽  
Neurological Exam ◽  
Long Time ◽  
High Level

AbstractGait disorders are common in the elderly as there are various causes of neurological and non-neurological conditions. On the other hand, most of the gait parameters do change with advancing age which is identified as age-related physiological changes in gait. At this point, the discrimination between age-related physiological changes and gait disorders may be strictly challenging. After identifying gait as an abnormal pattern, classification of it and making the responsible pathophysiology also require high-level expertise in this regard. Herein, we present a rare patient with corticobasal degeneration (CBD) who had admitted initially due to complaints of gait problems. Over a long time, the patient had received the misdiagnosis of gait abnormality due to musculoskeletal problems by multiple physicians. However, the detailed neurological exam showed a higher level gait disorder (HLGD). Further investigations at this point yielded the diagnosis of CBD.

Making Up 3D Bodies

2021 ◽  
Vol 4 (2) ◽  
pp. 1-9
Author(s):  
Kiona Hagen Niehaus ◽  
Rebecca Fiebrink
Keyword(s):  
Software Tool ◽  
The Body ◽  
Design Parameters ◽  
Artistic Practice ◽  
Human Form ◽  
Modeling Systems ◽  
Exploratory Approach ◽  
Disability Status ◽  
High Level ◽  
The Impact

This paper describes the process of developing a software tool for digital artistic exploration of 3D human figures. Previously available software for modeling mesh-based 3D human figures restricts user output based on normative assumptions about the form that a body might take, particularly in terms of gender, race, and disability status, which are reinforced by ubiquitous use of range-limited sliders mapped to singular high-level design parameters. CreatorCustom, the software prototype created during this research, is designed to foreground an exploratory approach to modeling 3D human bodies, treating the digital body as a sculptural landscape rather than a presupposed form for rote technical representation. Building on prior research into serendipity in Human-Computer Interaction and 3D modeling systems for users at various levels of proficiency, among other areas, this research comprises two qualitative studies and investigation of the impact on the first author's artistic practice. Study 1 uses interviews and practice sessions to explore the practices of six queer artists working with the body and the language, materials, and actions they use in their practice; these then informed the design of the software tool. Study 2 investigates the usability, creativity support, and bodily implications of the software when used by thirteen artists in a workshop. These studies reveal the importance of exploration and unexpectedness in artistic practice, and a desire for experimental digital approaches to the human form.

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