scholarly journals Archimedes’ Principle and Gravitation as a Spontaneous Process

2020 ◽  
Vol 12 (3) ◽  
pp. 1
Author(s):  
Giancarlo Cavazzini
Keyword(s):  
Heat Transfer ◽  
Physical Interpretation ◽  
The Body ◽  
Ceteris Paribus ◽  
Essential Characteristic ◽  
Spontaneous Process ◽  
The Difference ◽  
The Universe ◽  
Moving Bodies

A different physical interpretation of floating of bodies - the so-called “Archimedes’ Principle” - relates the gravitational process to its essential characteristic: its spontaneity. Gravity is a spontaneous physical process - similar, for example, to the process we interpret as ‘heat transfer’ between bodies at different temperature; similar to the process which occurs when masses of gas in contact with each other are at different pressures; similar to the process we call ‘friction’. Gravitation has all the characteristics shown by other spontaneous processes, and, like them, its cause is disequilibrium, between matter in contact, in a ‘quality’ of that matter. In the case of gravitation, the quality of matter is related to its intensive property we call ‘density’. Just as the process we call ‘heat transfer’ is the spontaneous process by means of which the Universe reduces and eliminates disequilibria that exist between its parts, due to differences in ‘temperature’, what we call ‘gravitation’ is the spontaneous process by means of which the Universe reduces and eliminates disequilibria between its parts, due to differences in ‘density’. This is achieved by moving bodies. Ceteris paribus, the process moves a body in the direction in which the difference in density between the matter of the body and the matter of the fluid surrounding the body is reduced.

scholarly journals Quality of Life in Patients with Psoriasis Seen in the Department of Dermatology, Antananarivo, Madagascar

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Fandresena Arilala Sendrasoa ◽  
Naina Harinjara Razanakoto ◽  
Volatantely Ratovonjanahary ◽  
Onivola Raharolahy ◽  
Irina Mamisoa Ranaivo ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Young Patients ◽  
The Body ◽  
University Hospital ◽  
Medical Decision ◽  
Cross Sectional ◽  
The Difference ◽  
The Impact

Background. Psoriasis is a chronic, inflammatory, and multifactorial dermatosis that impairs quality of life (QoL). Health-related QoL has become an important element in medical decision-making along with the effectiveness and the harmlessness of the treatments. Objective. To assess the impact of psoriasis in the QoL of patients with psoriasis by using the DLQI scales. Methods. A cross-sectional study from January to June 2018 was conducted in the Department of Dermatology of the University Hospital Joseph Raseta Befelatanana, Antananarivo, Madagascar, including patients more than 18 years old with mild to severe psoriasis. The severity of psoriasis was assessed using the “Psoriasis Area and Severity Index (PASI)”. QoL of patients with psoriasis was evaluated by using the DLQI scales. Results. 80 patients were included, their mean age was 36.5 years, and the male to female was 1.5 : 1. The mean DLQI score was 13.8. Symptoms, feelings, and psychic were the most altered dimensions. QoL was impaired in young patients, single, having medium level education. Even though patients with disease duration more than 5 years had higher DLQI score than other patients, the difference was not statistically significant (p=0.36). Furthermore, the clinical presentation of psoriasis did not influence the patient’s QoL (p=0.73). Patients with nail involvement had QoL impaired but the difference with another localization was not statistically significant (p=0.2). The quality of life was influenced by body area involved. The higher the body surface area involved, the more QoL is impaired (p=0.002). Furthermore, the higher the PASI, the more QoL is altered (p=0.002). Conclusion. Psoriasis has a negative impact in the quality of life in Malagasy patients with psoriasis, especially in younger and single patients. Worse quality of life is correlated to severity of psoriasis.

ESSENTIAL CHARACTERISTICS OF THE FITNESS CONCEPT AND THE AREA OF FITNESS IN LATVIA AND THE WORLD

2019 ◽  
Vol 4 ◽  
pp. 91
Author(s):  
Aleksandra Cuprika ◽  
Andra Fernate ◽  
Leonids Cupriks
Keyword(s):  
Quality Of Life ◽  
Physical Fitness ◽  
The Body ◽  
Physical Work ◽  
Way Of Life ◽  
Sport Competition ◽  
The World ◽  
Body Ideal ◽  
The Difference

Despite the great popularity of fitness around the world, it is still unclear what fitness is and how people understand it. The essence of fitness has gradually evolved from simple physical fitness to a cultural phenomenon. The second path of fitness development is from the physical health of a person reflected in a person’s readiness to do physical work to the desire to improve their own quality of life. That is why the aim of this study was to investigate in depth the essential characteristics of the fitness concept and the area of fitness. The study is based on 41 literature sources and scientific articles, 8 of which are in Russian and 33 – in English. The essence of the content of the fitness concept has been investigated and the hierarchy of concepts has been evaluated in different theoretical contexts, starting from the historical beginning of the fitness concept. Definitions were grouped in a broader and a narrower sense: 1) fitness as a set of attributes and abilities and 2) fitness as a way of life, lifestyle and quality of life. The essential categories of the fitness concept were compiled. The change of fitness area and its influence on the society was discussed. By summarizing the analysis of fitness definitions and evaluating fitness according to various theoretical aspects, it can be concluded that fitness is interpreted as sport competition fitness, as an implementation of a healthy way of life and as physical fitness or health-oriented physical fitness. Due to constant change and improvement of the body ideal sometimes it is complicated to participate in the process of improving health, also achieving it requires a lot of energy and time. People don’t understand where is the difference between healthy body and fitness body prepared for competition or commercial. Therefore the greater the beauty industry and fitness area becomes, the weaker becomes the human.  

scholarly journals Quality of life in patients with psoriasis seen in the Department of Dermatology, Antananarivo Madagascar.

2020 ◽  
Author(s):  
Fandresena Arilala Sendrasoa ◽  
Ratovonjanahary Volatantely ◽  
Razanakoto Naina Harinjara ◽  
Raharolahy Onivola ◽  
Rakotoarisaona Mendrika Fifaliana ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Young Patients ◽  
The Body ◽  
University Hospital ◽  
Medical Decision ◽  
Cross Sectional ◽  
The Difference ◽  
The Impact

Abstract BACKGROUND: Psoriasis is a chronic, inflammatory and multifactorial dermatosis that impairs quality of life (QoL). Health-related QoL has become an important element in medical decision making along with the effectiveness and the harmlessness of the treatments.OBJECTIVE: To assess the impact of psoriasis in the QoL of patients with psoriasis by using the DLQI scales.METHODS: A cross-sectional study, during ten months, was conducted in the Department of Dermatology of the University Hospital Joseph Raseta Befelatanana Antananarivo Madagascar including patients more than 15 years-old with moderate to severe psoriasis. The severity of psoriasis was assessed using the “Psoriasis Area and Severity Index (PASI)”. QoL of patients with psoriasis was evaluated by using the DLQI scales.RESULTS: 80 patients were included, their mean age was 36.52 years and the male to female was 1.5:1. The mean DLQI score was 13.85. Symptoms, feelings and psychic were the most altered dimensions. QoL was impaired in young patients, single, having medium level education. Even though patients with disease duration more than 5 years had higher DLQI score than other patients, the difference was not statistically significant (p=0.36). Furthermore, clinical presentation of psoriasis didn’t influence patient’s QoL (p=0.73). Patients with nail involvement had QoL impaired but the difference with another localization was not statistically significant (p=0.2).The quality of life was influenced by body area involved. The higher the body surface area involved, the more QoL is impaired (p=0.002). Furthermore, the higher the PASI, the more QoL is altered (p=0.002).CONCLUSION: Psoriasis has a negative impact in the quality of life in Malagasy patients with psoriasis, especially in younger and single patients. Worse quality of life is correlated to severity of psoriasis.

Analisis Image Noise dan Dosis pada Pemeriksaan MSCT dengan Menerapkan Aplikasi Piranti Lunak Care Dose Pesawat Siemens Somatom 6 Slice di RSUD Prof. Dr. Margono soekarjo purwokerto

2016 ◽  
Vol 2 (1) ◽  
pp. 114-118
Author(s):  
Lutfatul Fitriana ◽  
Gatot Murti Wibowo ◽  
Sudiono Sudiono
Keyword(s):  
Statistical Tests ◽  
Region Of Interest ◽  
Ct Images ◽  
Image Noise ◽  
The Body ◽  
Body Parts ◽  
Post Test ◽  
The Difference ◽  
Hospital Noise

Background: Multi-Slice Computed Tomography (MSCT) is diagnostic radiology examination that take an advantage of computer to acquire data and reconstructing an Image from number of detector rows. Noise is one of the tremendous factors that affect the quality of CT Images. Nowadays, CT mAs auto setting, an automatic exposure device, resolves such the Noise problems in which maintains the quality of diagnostic Images for all parts of the body with a lowest possible dose. Since working devices based on the size of the patient's body attenuation automatically, reduction of radiation dose by 40% to 50% would be achieved. Yet, the larger patient’s body parts, the higher patient’s CTDIvol occurrence, which in turn affects on the Noise produced.  The purpose of this research is to define the difference in the value of Image Noise and dose whenever the MSCT procedure is employed with and without the auto mAs selection with regards to maintaining CTDIvol and Image Noise.Methods: This research was an experimental quantitative study with one shot case study and post-test only approaches. Data were collected on July 2016 in Radiology Unit of Prof. Dr. Margono Soekarjo Purwokerto Hospital. Noise values was measured on 20 mm region of interest (ROI) and the dose was calculated by the CTDIvol on the workstation monitor were collecting data from the head, thorax and abdomen water phantom of CT Images. Data was analyzed by SPSS 16 software using statistical tests of the paired t-test.Results: The results of this study statistically deemed significant as there were differences in Image Noise values such as head, thorax and abdomen water phantoms (value ρ - value 0.05). Similarly, figures about the CTDIvol comparison also showed different dose levels received by the phantoms when apply the CT procedures with and without auto mAs selection to the head, thorax and abdomen water phantoms (the head phantom: 50.69 mGy Vs. 60.28 mGy; the thoracic phantom: 3.88 mGy Vs. 7,98 mGy; and the abdomen phantom: 8.38 mGy Vs. 20.83 mGy respectively). Conclusion: There was a difference in production of the Image Noise and dose when apply the CT procedures with and without auto mAs selection to the head, thorax, and abdomen water phantoms. Lower dose tended to induce more Noise than higher dose, meanwhile patient’s dose leads to increase as well.

scholarly journals Quality of Life in Patients With Psoriasis Seen in the Department of Dermatology, Antananarivo Madagascar.

2020 ◽  
Author(s):  
Fandresena Arilala Sendrasoa ◽  
Ratovonjanahary Volatantely ◽  
Razanakoto Naina Harinjara ◽  
Raharolahy Onivola ◽  
Rakotoarisaona Mendrika Fifaliana ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Young Patients ◽  
The Body ◽  
University Hospital ◽  
Medical Decision ◽  
Cross Sectional ◽  
The Difference ◽  
The Impact

Abstract BACKGROUND: Psoriasis is a chronic, inflammatory and multifactorial dermatosis that impairs quality of life (QoL). Health-related QoL has become an important element in medical decision making along with the effectiveness and the harmlessness of the treatments.OBJECTIVE: To assess the impact of psoriasis in the QoL of patients with psoriasis by using the DLQI scales.METHODS: A cross-sectional study, during ten months, was conducted in the Department of Dermatology of the University Hospital Joseph Raseta Befelatanana Antananarivo Madagascar including patients more than 15 years-old with moderate to severe psoriasis. The severity of psoriasis was assessed using the “Psoriasis Area and Severity Index (PASI)”. QoL of patients with psoriasis was evaluated by using the DLQI scales.RESULTS: 80 patients were included, their mean age was 36,52 years and the male to female was 1,5:1. The mean DLQI score was 13,85. Symptoms, feelings and psychic were the most altered dimensions. QoL was impaired in young patients, single, having medium level education. Even though patients with disease duration more than 5 years had higher DLQI score than other patients, the difference was not statistically significant (p=0,36). Furthermore, clinical presentation of psoriasis didn’t influence patient’s QoL (p=0,73). Patients with nail involvement had QoL impaired but the difference with another localization was not statistically significant (p=0,2).The quality of life was influenced by body area involved. The higher the body surface area involved, the more QoL is impaired (p=0,002). Furthermore, the higher the PASI, the more QoL is altered (p=0,002).CONCLUSION: Psoriasis has a negative impact in the quality of life in Malagasy patients with psoriasis, especially in younger and single patients. Worse quality of life is correlated to severity of psoriasis.

scholarly journals The Floating of a Body on the Surface of a Liquid: A Synthesis

2021 ◽  
Vol 13 (1) ◽  
pp. 33
Author(s):  
Giancarlo Cavazzini
Keyword(s):  
Physical Interpretation ◽  
Mechanical Action ◽  
The Body ◽  
Correct Interpretation ◽  
Sign Changes ◽  
Material Volume ◽  
The Difference

The current physical interpretation of the phenomenon of floating of a body on the surface of a liquid - the so-called ’Archimedes’ Principle’ - is not correct. It is based on a assumption which is false, because it leads to contradict observed facts. A different physical interpretation is the correct interpretation, which is equivalent to the current one from the quantitative viewpoint, but significantly different from the physical viewpoint. When a volume of matter – a body - is immersed in a fluid, it 'loses' its own weight, i.e., it is no longer home to the downward-directed mechanical action of which the volume is home when it is immersed in a vacuum. Therefore, a material volume immersed in a fluid does not host two mechanical actions - the 'weight' of the volume itself, directed downwards, and the 'Archimedes' force', directed upwards – but a single mechanical action. The intensity of this action is proportional to the volume of the body and to the difference in density between the matter which constitutes the body and the matter which constitutes the fluid. The direction of this action is related to the sign of the difference between the two values of density, reversing as the sign changes from positive to negative and vice-versa. Since the intensity of this mechanical action is proportional to the difference in density between the matter which constitutes the body and the matter which constitutes the fluid, there is no mechanical action – i.e., the mechanical action ceases – if there is equilibrium in density between the matter of the body and the matter of the fluid. This indicates that the main cause of this mechanical action is a physical disequilibrium between the matter which constitutes the body and the matter which constitutes the fluid, i.e., a physical disequilibrium/relationship between matter which is in contact.

scholarly journals Temperature Difference Effect between Two Samples Ends on the Inception of Thermal Sensitivity

2019 ◽  
Vol 27 (2) ◽  
pp. 183-193
Author(s):  
Ridha Hameed Majeed
Keyword(s):  
Heat Transfer ◽  
Thermal Diffusivity ◽  
Temperature Difference ◽  
Thermal Sensitivity ◽  
Convection Heat Transfer ◽  
The Body ◽  
The Other ◽  
Transient Heat Transfer ◽  
Two Samples ◽  
The Difference

This paper examined the effect of the difference between the temperature of the two end of the body exposed to transient conduction heat transfer on the inception of thermal sensitivity and at different distances from the hot end of the sample. The study was based on the selection of a sample with a length of 15 cm and a fixed height of 1 cm. Four materials with different thermal properties were selected. One end of the model was exposed to three different temperatures (75, 125, and 175) oC. The other end of the sample was placed under a convection heat transfer at 25 oC. To adopt an inception indicator of thermal sensitivity of the sample when exposed to transient heat transfer, (26) oC was used because it is the nearest temperature to the initial condition of the sample. Four points were selected on different distance from hot end along the sample. The hot end temperature was also adopted as an indicator to measure the effect of the temperature difference for two body ends as the other end is subject to constant transient heat transfer.   Determine the effect of the temperature difference   between two body ends exposed to transient heat transfer on the inception of thermal sensitivity is study target. The  results of this study showed  the reverse effect of the temperature difference   between two body ends  exposed to transient heat transfer on the inception of thermal sensitivity, this effect increases by increasing the distance from  hot sample end   and depressing of thermal diffusivity. The results also showed that the values of the Thermal sensitivity inception ranged between (0.43-17845) seconds according to the    distance from the hot end, its temperature, and the thermal diffusivity of sample materials for each case.

Efficiency function: improvement of classical bioheat approach

1994 ◽  
Vol 77 (4) ◽  
pp. 1617-1622 ◽  
Author(s):  
H. Brinck ◽  
J. Werner
Keyword(s):  
Heat Transfer ◽  
Three Dimensional ◽  
The Body ◽  
Tissue Temperature ◽  
Whole Body ◽  
Function Concept ◽  
Perfusion Rate ◽  
Efficiency Function ◽  
Vascular Model ◽  
The Difference

In view of the complex vascular architecture and the intricate physical heat transfer processes in the human body, convective heat transfer via the blood is generally described by simple substitutional processes (“non-vascular models”). The classical “bioheat” approach of Pennes (J. Appl. Physiol. 1: 93–122, 1948), defining the heat flow to or from the tissue as being proportional to the product of perfusion rate and the difference of arterial and tissue temperature, has been seriously questioned after having been used for > 40 yr in many applications. In our laboratory, we have at our disposal a complex three-dimensional vascular model for the special case of tissue in a human extremity. This was used to test the performance of simple nonvascular models. It turned out that the Pennes approach may deliver acceptable results if the body is in the thermoneutral zone or if heat stress acts uniformly on the whole body. However, when cold stress or local hyperthermia is present, unreliable results must be expected. As the vascular model is not generally practicable because of its extreme complexity, we offer the efficiency function concept as a simple way of correcting the classical bioheat approach by factor multiplication. Efficiency function is determined as a function of perfusion rate and tissue depth in a way that compensates for the deficiencies of the Pennes bioheat term. The results are reasonable compared with those of the vascular model and experimental results.

scholarly journals Archimedes’ Principle and the Concept of Gravitation

2019 ◽  
Vol 11 (6) ◽  
pp. 9
Author(s):  
Giancarlo Cavazzini
Keyword(s):  
Physical Interpretation ◽  
Solid Material ◽  
Mechanical Action ◽  
Liquid Volume ◽  
Ceteris Paribus ◽  
Material Body ◽  
Liquid Body ◽  
The Earth ◽  
Material Volume ◽  
The Difference

Simple experimental evidence shows that the current physical interpretation of the phenomenon of a solid material body floating on the surface of a liquid body - known as ‘Archimedes’ Principle’ - is not correct. As this interpretation is a consequence of the assumption that a volume of material, when immersed in a fluid, does not ‘lose’ its ‘weight’, what we believe of gravitational mechanical action is also not correct. A material volume immersed in a fluid is currently believed to be subjected to two mechanical actions, ‘gravitational mechanical action’ or ‘weight of the material volume’ and ‘Archimedes’ force’. This is not in fact correct: the material volume is subjected to only one mechanical action, proportional to volume and to the difference in density between the matter of the material volume and that of the fluid. We propose to call this mechanical action the ‘weight of the material volume in that fluid’, ceteris paribus. At the Earth’s surface, floating of a solid material volume B on the surface of a liquid volume is the result of the concurrent action of two ‘weights’, the ‘weight in air’ of the part of volume B which is immersed in air, directed downwards, and the ‘weight in the liquid’ of the part of volume B which is immersed in the liquid, directed upwards.

scholarly journals Quality Of Life In Patients With Psoriasis Seen In The Department of Dermatology, Antananarivo Madagascar.

2020 ◽  
Author(s):  
Fandresena Arilala Sendrasoa ◽  
Ratovonjanahary Volatantely ◽  
Razanakoto Naina Harinjara ◽  
Raharolahy Onivola ◽  
Rakotoarisaona Mendrika Fifaliana ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Young Patients ◽  
The Body ◽  
University Hospital ◽  
Medical Decision ◽  
Cross Sectional ◽  
The Difference ◽  
The Impact

Abstract BACKGROUND: Psoriasis is a chronic, inflammatory and multifactorial dermatosis that impairs quality of life (QoL). Health-related QoL has become an important element in medical decision making along with the effectiveness and the harmlessness of the treatments.OBJECTIVE: To assess the impact of psoriasis in the QoL of patients with psoriasis by using the DLQI scales.METHODS: A cross-sectional study, during ten months, was conducted in the Department of Dermatology of the University Hospital Joseph Raseta Befelatanana Antananarivo Madagascar including patients more than 15 years-old with moderate to severe psoriasis. The severity of psoriasis was assessed using the “Psoriasis Area and Severity Index (PASI)”. QoL of patients with psoriasis was evaluated by using the DLQI scales.RESULTS: 80 patients were included, their mean age was 36.52 years and the male to female was 1.5:1. The mean DLQI score was 13.85. Symptoms, feelings and psychic were the most altered dimensions. QoL was impaired in young patients, single, having medium level education. Even though patients with disease duration more than 5 years had higher DLQI score than other patients, the difference was not statistically significant (p=0.36). Furthermore, clinical presentation of psoriasis didn’t influence patient’s QoL (p=0.73). Patients with nail involvement had QoL impaired but the difference with another localization was not statistically significant (p=0.2).The quality of life was influenced by body area involved. The higher the body surface area involved, the more QoL is impaired (p=0.002). Furthermore, the higher the PASI, the more QoL is altered (p=0.002).CONCLUSION: Psoriasis has a negative impact in the quality of life in Malagasy patients with psoriasis, especially in younger and single patients. Worse quality of life is correlated to severity of psoriasis.

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