scholarly journals Microwave usage and cancer: Do microwaves cause cancer?

2021 ◽  
Author(s):  
Muhammad Abdullah Al Azam Abd Rahman ◽  
Zairina A Rahman
Keyword(s):  
Rapid Development ◽  
Microwave Frequency ◽  
Microwave Energy ◽  
Microwave Oven ◽  
The Body ◽  
Surrounding Tissue ◽  
Frequency Range ◽  
Modern Life ◽  
Electrical Appliance ◽  
Fast Lane

Materials containing water, for example foods, fluids or tissues, absorb microwave energy readily, which is then converted into heat. This principle is applied in microwave ovens, an electrical appliance that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. Amidst the hustle and bustle of modern life, the microwave oven has been a great help, as the rapid development of technology keeps consumers in the fast lane. Cancer is defined as the uncontrolled growth and spread of cells. It can affect almost any part of the body. The growths often invade surrounding tissue and can metastasize to distant sites. In this paper, we will explore the function of microwave ovens, the pathophysiology of cancer, and whether is there any evidence of a relationship between microwave ovens and cancer.

A STUDY OF THE ATTITUDE OF COLLEGE STUDENTS OF PUNJAB TOWARDS YOGA

2017 ◽  
Vol 4 (24) ◽  
Author(s):  
Anurag Asija
Keyword(s):  
College Students ◽  
Physical Health ◽  
Literary Form ◽  
The Body ◽  
Modern Life ◽  
Physical Body ◽  
Modern Times ◽  
The Times ◽  
The Mind

In modern life, people generally try to accomplish too much in too little time, consequently they accumulate a lot of stress in their lives. In that time, yoga plays an important role to alleviate the stress and rejuvenate the body. In the times, yoga was a form of Bhakti. Rishi Patanjali, rightly called the father of yoga, who around 200 b.c. gave us the present literary form of yoga doctrine in his famous treaties Yoga Sutra. In modern times, the value of yoga is being increasingly recognized for general and it’s preventive and curative effects. Yoga does not conceive man having a physical body but on the contrary, it emphasizes the greater values of the mind which characterizes his personality, Thus, yoga leads to ultimate physical health and happiness together with the achieve of mental and patience.

scholarly journals Virtual Archaeology of Death and Burial: A Procedure for Integrating 3D Visualization and Analysis in Archaeothanatology

2021 ◽  
Vol 7 (1) ◽  
pp. 540-555
Author(s):  
Hayley L. Mickleburgh ◽  
Liv Nilsson Stutz ◽  
Harry Fokkens
Keyword(s):  
Spatial Information ◽  
3D Visualization ◽  
Rapid Development ◽  
Three Dimensional ◽  
3D Models ◽  
The Body ◽  
Test Case ◽  
Archaeology Of Death ◽  
Human Burials ◽  
3D Information

Abstract The reconstruction of past mortuary rituals and practices increasingly incorporates analysis of the taphonomic history of the grave and buried body, using the framework provided by archaeothanatology. Archaeothanatological analysis relies on interpretation of the three-dimensional (3D) relationship of bones within the grave and traditionally depends on elaborate written descriptions and two-dimensional (2D) images of the remains during excavation to capture this spatial information. With the rapid development of inexpensive 3D tools, digital replicas (3D models) are now commonly available to preserve 3D information on human burials during excavation. A procedure developed using a test case to enhance archaeothanatological analysis and improve post-excavation analysis of human burials is described. Beyond preservation of static spatial information, 3D visualization techniques can be used in archaeothanatology to reconstruct the spatial displacement of bones over time, from deposition of the body to excavation of the skeletonized remains. The purpose of the procedure is to produce 3D simulations to visualize and test archaeothanatological hypotheses, thereby augmenting traditional archaeothanatological analysis. We illustrate our approach with the reconstruction of mortuary practices and burial taphonomy of a Bell Beaker burial from the site of Oostwoud-Tuithoorn, West-Frisia, the Netherlands. This case study was selected as the test case because of its relatively complete context information. The test case shows the potential for application of the procedure to older 2D field documentation, even when the amount and detail of documentation is less than ideal.

scholarly journals Injectable non-leaching tissue-mimetic bottlebrush elastomers as an advanced platform for reconstructive surgery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Erfan Dashtimoghadam ◽  
Farahnaz Fahimipour ◽  
Andrew N. Keith ◽  
Foad Vashahi ◽  
Pavel Popryadukhin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Reconstructive Surgery ◽  
Biomedical Applications ◽  
The Body ◽  
Surrounding Tissue ◽  
Curing Time ◽  
Materials Used ◽  
Significant Health

AbstractCurrent materials used in biomedical devices do not match tissue’s mechanical properties and leach various chemicals into the body. These deficiencies pose significant health risks that are further exacerbated by invasive implantation procedures. Herein, we leverage the brush-like polymer architecture to design and administer minimally invasive injectable elastomers that cure in vivo into leachable-free implants with mechanical properties matching the surrounding tissue. This strategy allows tuning curing time from minutes to hours, which empowers a broad range of biomedical applications from rapid wound sealing to time-intensive reconstructive surgery. These injectable elastomers support in vitro cell proliferation, while also demonstrating in vivo implant integrity with a mild inflammatory response and minimal fibrotic encapsulation.

EBG at microwave frequency range: Bragg and/or resonant effect?

2004 ◽  
Vol 42 (5) ◽  
pp. 383-385 ◽  
Author(s):  
Asier Ibáñez Loinaz ◽  
Carlos del Río Bocio
Keyword(s):  
Microwave Frequency ◽  
Frequency Range ◽  
Resonant Effect

Bibliometric analysis and critical review of the research on big data in the construction industry

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yusheng Lu ◽  
Jiantong Zhang
Keyword(s):  
Big Data ◽  
Construction Industry ◽  
Bibliometric Analysis ◽  
Critical Review ◽  
Rapid Development ◽  
Heterogeneous Data ◽  
The Body ◽  
Future Research ◽  
Temporal And Spatial Distribution ◽  
Content Type

PurposeThe digital revolution and the use of big data (BD) in particular has important applications in the construction industry. In construction, massive amounts of heterogeneous data need to be analyzed to improve onsite efficiency. This article presents a systematic review and identifies future research directions, presenting valuable conclusions derived from rigorous bibliometric tools. The results of this study may provide guidelines for construction engineering and global policymaking to change the current low-efficiency of construction sites.Design/methodology/approachThis study identifies research trends from 1,253 peer-reviewed papers, using general statistics, keyword co-occurrence analysis, critical review, and qualitative-bibliometric techniques in two rounds of search.FindingsThe number of studies in this area rapidly increased from 2012 to 2020. A significant number of publications originated in the UK, China, the US, and Australia, and the smallest number from one of these countries is more than twice the largest number in the remaining countries. Keyword co-occurrence is divided into three clusters: BD application scenarios, emerging technology in BD, and BD management. Currently developing approaches in BD analytics include machine learning, data mining, and heuristic-optimization algorithms such as graph convolutional, recurrent neural networks and natural language processes (NLP). Studies have focused on safety management, energy reduction, and cost prediction. Blockchain integrated with BD is a promising means of managing construction contracts.Research limitations/implicationsThe study of BD is in a stage of rapid development, and this bibliometric analysis is only a part of the necessary practical analysis.Practical implicationsNational policies, temporal and spatial distribution, BD flow are interpreted, and the results of this may provide guidelines for policymakers. Overall, this work may develop the body of knowledge, producing a reference point and identifying future development.Originality/valueTo our knowledge, this is the first bibliometric review of BD in the construction industry. This study can also benefit construction practitioners by providing them a focused perspective of BD for emerging practices in the construction industry.

scholarly journals Unstable Hemostasis and Specific Postoperative Complications (Literature Review)

2020 ◽  
Vol 5 (4) ◽  
pp. 98-102
Author(s):  
D. V. Lebedeva ◽  
E. A. Ilyicheva
Keyword(s):  
Postoperative Complications ◽  
Rapid Development ◽  
Point Of View ◽  
The Body ◽  
Cost Of Treatment ◽  
Duration Of Hospital Stay ◽  
Technical Errors ◽  
Perioperative Bleeding ◽  
The Cost

Perioperative bleeding occupies a leading place among all surgical complications and, despite the rapid development of surgery, remains relevant to this day. In addition to an increase in mortality, bleeding can cause the development of other postoperative complications, which lead to disability of patients and to a decrease in the quality of life in all age groups. Most perioperative bleeding are caused by technical errors. This article reviews the problem of perioperative bleeding from the point of view of impaired coagulation capabilities of the body. The main etiopathogenetic features of hemostasis during the development of this complication are considered. The analysis of postoperative complications, which were directly or indirectly caused by bleeding during or after surgery, is presented. The prevalence of these complications in various areas of surgery has been demonstrated. More detailed study of the hemostasis system and the identification of predictors of hemostasis difficulties before the surgery may cause an improvement in the results of surgical treatment and reduce the number of postoperative complications and the duration of hospital stay. Accordingly, this will lead to a decrease in the cost of treatment and an increase in patient satisfaction with the medical care. In connection with the above, there is a great interest among surgeons and anesthesiologists in preventing the development of perioperative bleeding.

scholarly journals Bandwidth and Common Mode Optimization for Current and Voltage Sources in Bioimpedance Spectroscopy

2021 ◽  
Vol 12 (1) ◽  
pp. 135-146
Author(s):  
Tobias Menden ◽  
Jascha Matuszczyk ◽  
Steffen Leonhardt ◽  
Marian Walter
Keyword(s):  
Patient Safety ◽  
Current Source ◽  
The Body ◽  
Voltage Source ◽  
Bioimpedance Spectroscopy ◽  
Laboratory Measurements ◽  
Output Impedance ◽  
Frequency Range ◽  
Common Mode ◽  
High Bandwidth

Abstract Bioimpedance measurements use current or voltage sources to inject an excitation signal into the body. These sources require a high bandwidth, typically from 1 kHz to 1 MHz. Besides a low common mode, current limitation is necessary for patient safety. In this paper, we compare a symmetric enhanced Howland current source (EHCS) and a symmetric voltage source (VS) based on a non-inverting amplifier between 1 kHz and 1 MHz. A common mode reduction circuit has been implemented in both sources. The bandwidth of each source was optimized in simulations and achieved a stable output impedance over the whole frequency range. In laboratory measurements, the output impedance of the EHCS had its -3 dB point at 400 kHz. In contrast, the VS reached the +3 dB point at 600 kHz. On average over the observed frequency range, the active common mode compensation achieved a common mode rejection of -57.7 dB and -71.8 dB for the EHCS and VS, respectively. Our modifications to classical EHCS and VS circuits achieved a low common mode signal between 1 kHz and 1 MHz without the addition of complex circuitry, like general impedance converters. As a conclusion we found VSs to be superior to EHCSs for bioimpedance spectroscopy due to the higher bandwidth performance. However, this only applies if the injected current of the VS can be measured.

scholarly journals Injectable Non-leaching Tissue-mimetic Bottlebrush Elastomers: A New Platform for Advancing Reconstructive Surgery

2020 ◽  
Author(s):  
Erfan Dashtimoghadam ◽  
Farahnaz Fahimipour ◽  
Andrew Keith ◽  
Foad Vashahi ◽  
Pavel Popryadukhin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Reconstructive Surgery ◽  
Biomedical Applications ◽  
The Body ◽  
Surrounding Tissue ◽  
Curing Time ◽  
Materials Used ◽  
Significant Health

Abstract Current materials used in biomedical devices do not match tissue’s mechanical properties and leach various chemicals into the body. These deficiencies pose significant health risks that are further exacerbated by invasive implantation procedures. Herein, we leverage the brush-like polymer architecture to design and administer minimally invasive injectable elastomers that cure in vivo into leachable-free implants with mechanical properties matching the surrounding tissue. This strategy allows tuning curing time from minutes to hours, which empowers a broad range of biomedical applications from rapid wound sealing to time-intensive reconstructive surgery. These injectable elastomers support in vitro cell proliferation, while also demonstrating in vivo implant integrity with a mild inflammatory response and minimal fibrotic encapsulation.

scholarly journals Удосконалення методів діагностики піометри у кішок за допомогою сонографії

2015 ◽  
pp. 182-185
Author(s):  
Д. О. Вусик
Keyword(s):  
The Body ◽  
Surrounding Tissue ◽  
Maximum Diameter ◽  
Experimental Animals ◽  
Healthy Female

Протягом 2008–2014 років в умовах ветеринарно-го центра «Хелс» м. Суми сонографічним методомбуло досліджено 221 кішку. Сонографічним мето-дом насамперед визначили ультразвукову харак-теристику морфологічного стану матки клінічноздорових кішок у період анеструсу. Ехограма здо-рової матки характеризується рівними та однорід-ними стінками, відсутністю візуалізації порожнини,середньої або незначно зниженою по відношенню дооточуючих тканин ехогенністю. Яєчники у здоровихкішок під час сонографічного дослідження не ві-зуалізувались. Ехограма матки в разі піометри ха-рактеризується розширенням рогів матки, потов-щенням або розширенням порожнини матки. Макси-мальний діаметр тіла та рогів матки становив від-повідно 2,4 см і 5,8 см. Розширення порожнини мат-ки відмічалося у всіх дослідних тварин у випадку піо-метри. Водночас у тварин ширина порожнини маткистановила 1,22 ± 0,35 см. Вмітиме порожнини маткимало гіпоехогенне або анехогенне відображення, вдеяких випадках відзначалася помірна гіпоехогенназернистість. During 2008–2014 years 221 cats were investigated with the help of sonographic method in Sumy veterinary center «Health». Primarily the ultrasound characteristic of morphological condition of the uterus of clinical healthy female of cats during anoestrus was determined by the sonographic method. Echogram of healthy uterus is characterized by equal and uniform walls, lack of visualization of cavities, medium or slightly reduced relative to the surrounding tissue echogenicity. The ovaries of healthy cats at sonographic research were not visualized. Sonogram of the uterus with pyometra is characterized by enlargement of uterine horns, thickening or enlargement of the uterus. The maximum diameter of the body and uterine horns made pursuant 2,4–5,8 cm. Expanding uterus was noted in all experimental animals with pyometra. This animal uterus width was 1,22±0,35 cm. Contents of uterus were hypoechoic or anechoic display, in some cases hypoechoic moderate graininess was marked.

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