ANALYSIS OF VIBRATIONS GENERATED BY THE MULTI-BODY MODEL OF A PLANETARY GEAR

In the paper the dynamic model of an one-stage planetary gear was presented. The model was developed on the basis of a multi-body dynamics method. To conduct dynamic simulations the specialized multi-body dynamics software was used. In the study the tests results for steady state operations of the planetary gear were presented. In the paper the meshing force signals were analyzed. The vibrations generated by the model consist of carrier and gear meshing frequency harmonics. On the spectra the amplitude modulations of the gear meshing frequencies harmonics were observed

Change the number of water reservoirs in the selected cities of the Upper Silesian Agglomeration over the period 1993-2014

The Upper Silesian Agglomeration is the most industrialized area in Poland and one of the most in Europe. It is situated in the eastern part of the Upper Silesia and covers nearly 1500 km2. This region is highly diverse in terms of the spatial structure. There are lots of water reservoirs besides built-up areas and industrial facilities. Many of them have also significance for nature. Water reservoirs in the Upper Silesian Agglomeration function under anthropogenic conditions. Water reservoirs have a different size and the genesis. This kind of occurrence conditions influences the water reservoirs` state. There are mainly water reservoirs of anthropogenic character in a study area. A lot of water reservoirs are strictly connected with coal exploitation in this region. Unfortunately, the number of water reservoirs in the cities of the Upper Silesian Agglomeration has lately decreased. Reservoirs are eliminated as a result of changes in industry, progressive land development, changes in environmental conditions. In this paper we present the results of the number of water reservoirs analysis in Katowice, Sosnowiec and Chorzów over the period 1993-2014. Field studies and analysis of topographic maps show a decrease in the number of water reservoirs in this region by tens of percent

Food hypersensitivity - classification, pathogenesis, diagnosis. What are food allergies?

Introduction: Food hypersensitivity is a pathological, increased and inadequate reaction of the body to a particular substance, the consumption of which can cause various types of body symptoms. Purpose: The purpose of this study is to distinguish different types of hypersensitivity mechanisms, resulting in the introduction of appropriate diagnosis and treatment. Results and conclusions: Food hypersensitivity is becoming an epidemic of the 21st century. This is due to many individual factors as well as environmental pollution. It is important to identify the type of mechanism involved in a given food hypersensitivity and to eliminate the causative factors, or incorporate appropriate treatment. Understanding this forms the basis of therapy. Methods:  Data for the article were retrieved using PubMed setting the time descriptors to 2014-2020

Conventional and unconventional treatments for migraine

MIELNICZEK, Katarzyna, DOŁOMISIEWICZ, Diana, DALMATA, Weronika, GĄBKA, Ilona and DĄBROWSKI, Jan. Conventional and unconventional treatments for migraine. Journal of Education, Health and Sport. 2023;19(1):227-236. eISSN 2391-8306. http://dx.doi.org/10.12775/JEHS.2023.19.01.020 https://apcz.umk.pl/JEHS/article/view/45843 https://zenodo.org/record/8364590 The journal has had 40 points in Ministry of Education and Science of Poland parametric evaluation. Annex to the announcement of the Minister of Education and Science of 17.07.2023 No. 32318. Has a Journal's Unique Identifier: 201159. Scientific disciplines assigned: Physical Culture Sciences (Field of Medical sciences and health sciences); Health Sciences (Field of Medical Sciences and Health Sciences). Punkty Ministerialne z 2019 - aktualny rok 40 punktów. Załącznik do komunikatu Ministra Edukacji i Nauki z dnia 17.07.2023 Lp. 32318. Posiada Unikatowy Identyfikator Czasopisma: 201159. Przypisane dyscypliny naukowe: Nauki o kulturze fizycznej (Dziedzina nauk medycznych i nauk o zdrowiu); Nauki o zdrowiu (Dziedzina nauk medycznych i nauk o zdrowiu). © The Authors 2023; This article is published with open access at Licensee Open Journal Systems of Nicolaus Copernicus University in Torun, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author (s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non commercial license Share alike. (http://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. The authors declare that there is no conflict of interests regarding the publication of this paper. Received: 22.08.2023. Revised: 15.09.2023. Accepted: 20.09.2023. Published: 22.09.2023. Conventional and unconventional treatments for migraine Katarzyna Mielniczek1, Diana Dołomisiewicz2, Weronika Dalmata1, Ilona Gąbka1, Jan Dąbrowski1 1 Students' Scientific Circle at the Department of Epidemiology and Clinical Research Methodology, Medical University of Lublin 2 Student Research Group at the Depatment of Neurology “NEKON”, Medical University of Warsaw Abstract Migraine is one of the leading causes of disability in humans. It causes significant deterioration in patients' lives and prevents daily functioning. Its main symptoms include photophobia, an enormous stabbing headache, nausea and vomiting. In addition, it can be accompanied by tinnitus, visual disturbances or dizziness. Before diagnosing migraine, serious intracranial pathology or other neurological conditions should be ruled out. Treatment of acute migraine is difficult due to significant rates of nonresponse to medications and the difficulty in predicting individual response to a particular agent or dose. A new class of drugs, calcitonin gene-related peptide (CGRP) antagonists, has been approved for the prevention of migraine in adults. In contrast, effective first-line therapies for mild to moderate migraine are over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs) and combination analgesics containing paracetamol, aspirin and caffeine. Keywords: acute migraine attack, migraine treatment, migraine headache, headach

Conventional and unconventional treatments for migraine

Migraine is one of the leading causes of disability in humans. It causes significant deterioration in patients' lives and prevents daily functioning. Its main symptoms include photophobia, an enormous stabbing headache, nausea and vomiting. In addition, it can be accompanied by tinnitus, visual disturbances or dizziness. Before diagnosing migraine, serious intracranial pathology or other neurological conditions should be ruled out. Treatment of acute migraine is difficult due to significant rates of nonresponse to medications and the difficulty in predicting individual response to a particular agent or dose. A new class of drugs, calcitonin gene-related peptide (CGRP) antagonists, has been approved for the prevention of migraine in adults. In contrast, effective first-line therapies for mild to moderate migraine are over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs) and combination analgesics containing paracetamol, aspirin and caffeine

The relationship between internet addiction and mental health problems such as depression symptoms, anxiety and insomnia before and during Covid-19 pandemic

Introduction: On the account of the Covid-19 pandemic, many governments around the world have imposed multiple restrictions on public life to prevent the spread of the coronavirus. Social disruption and forced isolation contributed to increased stress as well as increased use of the Internet.Aim of the study: The aim of the study was to investigate the influence of the Covid-19 pandemic on mental health problems, including Internet addiction, and to link Internet addiction with mental health problems such as anxiety, depression symptoms and insomnia.Material and methods: The data for the article was found using the PubMed and Google Scholar websites.Description of the state of knowledge: Internet addiction (IA) is becoming an increasingly serious problem of the modern world. The problem of Internet abuse is associated with various risk factors that are dependent on gender or family relationships, as well as mental disorders.Many studies have confirmed that the Covid-19 pandemic caused negative mental health effects, contributing to increased anxiety and depression symptoms. To reduce stress, people started using the internet more often. This compensatory mechanism can cause even more mental health problems by increasing anxiety, symptoms of depression and insomnia.Summary: Research by many scientists shows that the Covid-19 pandemic is exacerbating the mental health problems associated with IA. Research shows that during the Covid-19 pandemic, it is especially important to be able to manage stress through non-internet-related activities to help prevent IA

Irritable bowel syndrome - pathophysiology, diagnosis, treatment. The role of low FODMAP diet

Introduction: The gut microbiota is the microorganisms in the digestive tract. They are mainly bacteria. They play a very important role in maintaining the body's homeostasis. The state of the microbiota is influenced by lifestyle including diet, stress and physical activity. In irritable bowel syndrome, there are disorders in the composition of the intestinal microbiota. It is also associated with a disruption in the proper functioning of the gut-brain axis.     Aim: The aim of this study was to review the literature reports on irritable bowel syndrome and the impact of a low FODMAP diet. Methods:  Data for the article were retrieved using PubMed setting the time descriptors to 2017-2021. Results and conclusions: Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disease. It is manifested by chronic abdominal pain , diarrhea or constipation and changes in the frequency of bowel movements. It significantly affects the quality of life of patients. The diagnosis uses the Roman IV criteria. Pharmacological as well as non-pharmacological methods are important in the treatment. A low-FODMAP diet plays a major role. Studies show that its proper use significantly alleviates the symptoms of IBS

PCOS as a generational disease - risks to mother and children

INTRODUCTION: Polycystic ovary syndrome (PCOS) is the dominant endocrine and metabolic disorder in young women. The incidence has increased significantly over the years and now affects approximately 6-20% of women of childbearing age. AIM: The aim of the work is to present the current state of knowledge about PCOS, to show what complications it brings and to present the disease as a multi-generational problem. TECHNICAL CONDITION. DESCRIPTION: It is widely accepted that hyperandrogenism plays a fundamental role in the development of most of the reproductive and metabolic disorders associated with PCOS. Excess androgens have a detrimental effect on the metabolic homeostasis of women with PCOS, acting on various metabolic tissues. PCOS is associated with reduced fertility or infertility. Women should be aware of factors affecting fertility, especially the effects of obesity and age. After pregnancy, women with PCOS have a significantly increased risk of pregnancy-related complications, including gestational diabetes, high blood pressure disorders, preterm and caesarean delivery, and pre-eclampsia.The offspring of women with PCOS may have an increased risk of birth defects and hospitalization in childhood. According to the DOHaD theory, the unfavorable uterine environment caused by mothers with PCOS, consisting in changes in fetal metabolism, may increase the susceptibility of the offspring to diseases in adulthood, according to the DOHaD theory. In addition, the offspring of PCOS are prone to a range of metabolic diseases in early adulthood, which will also affect the health of their children. CONCLUSION: The effects of endocrine disorders affect women with PCOS as well as their offspring. Diet, weight maintenance, physical activity, anti-androgenic drugs and metformin are recommended to reduce symptoms in mothers and their children. Breaking the vicious circle of intergenerational transmission remains a huge challenge

Psychomotor performance of Polish Air Force cadets after 36 hours of survival training

Introduction The preparation of Polish Air Force cadets for survival in isolation is a necessary element of their training, to demonstrate just how difficult can be the conditions they could encounter in a combat situation. Objective. The aim of the research was to assess the effect of long-term survival training on selected coordination motor skills in Air Force cadets. Material and Methods Fifteen air force cadets aged 19.6±0.3 years exercised for 36 hours during survival training without the possibility to sleep. They were examined 4 times: Day 1 – before effort (training), Day 2 – after 24 hours training, Day 3 – directly after 36 hours training, Day 4 – next day, after an all night rest. They were examined for shooting and reaction time, the ability to maintain body balance, running motor adjustment, handgrip force differentiation, and on Days 1 and 3, exercise capacity was evaluated with a 1 mile walking test. Results The survival training resulted in significant decreases in maximum handgrip strength, corrected 50% max handgrip, maintenance of body balance and heart rate. No changes occurred in reaction time, running motor adjustment and shooting performance. Overnight rest did not result in recovery of any of the examined factors to the values observed on Day 1. Conclusions Survival training combined with sleep deprivation mostly affected peripheral factors depending on strong action from both muscles and nervous system, whereas complex tasks involving short-term central alertness and moderate exertion were maintained. In order to improve performance, more endurance strength training, if possible combined with sleep deprivation, should be introduced in military training

The role of the gut microbiota and the use of new therapies in Irritable Bowel Syndrome

Introduction: Irritable bowel syndrome is a functional disorder of the gastrointestinal tract with a multifactorial nature of the disease. IBS affects 11% of the population, with the gut microbiota playing an important role in the pathophysiology. Purpose: The aim of this article is to present the course of irritable bowel syndrome, the role of the gut microbiota in pathophysiology, and new therapeutic approaches, including probiotics, based on the current state of knowledge. Conclusions: IBS is a syndrome whose exact pathophysiology is not fully understood. The state of the gut microbiota has a huge impact on the course of the disease, but also on the functioning of the whole body. New therapies currently in use, i.e. probiotics, are showing promising results, but more research is needed to find the golden mean to treat the disease. Methods: Data for the article were retrieved using PubMed setting the time descriptors to 2013-2023. Irritable bowel syndrome is one of the more common functional disorders of the gastrointestinal tract. It manifests as recurrent abdominal pain, discomfort and bloating accompanied by bowel movements without a direct underlying cause. From multicentre clinical studies, it is known that disorders of various mechanisms within the brain-gut axis, altered gastrointestinal motility and visceral hypersensitivity are the underlying causes. In addition, many scholars are of the opinion that disturbances in the gut microbiota play a key role in the pathogenesis of IBS