scholarly journals COVID-19 Pandemic: Age and Temperature Related Effects

Coronaviruses ◽  
2020 ◽  
Vol 01 ◽  
Author(s):  
Gursharan Kaur ◽  
Amandeep Singh ◽  
Raj Kumar Narang ◽  
Gurmeet Singh

Background: Coronavirus belongs to the phylum- incertae sedis, order- nidovirales, family- coronaviridae, and the subfamily-orthocononaviridae. Coronaviruses spring up from the family of viruses that can cause malady such as the common cold, fever, shortness of breath, aches, chills, loss of smell, etc. Objective: As we all know coronavirus has affected the whole world and many of the affected patients has led to death. As the prevalence of this disease has raised, many myths has also originated like the effect of temperature on the virus; is this virus surely killed by effect of temperature? Is the effect of this virus is more on the old age patients? In the presented compilation, we have tried to exposé the actual reality behind these all myths and also tried to find the morphologic difference of coronavirus from the other viruses. Methods: The recent updates on this virus have been obtained from search engines like Pub med and Google scholar, by using COVID-19, coronavirus, Pandemic corona keywords. Results: After a huge search on the temperature effect on this disease; it was evident that there is no effect of temperature on the coronavirus. Due to the immunity factor, it showed its worst effect on old age people in many countries. Conclusion: The structure, symptoms and incubation period of coronavirus have been given in this review article. We have summarized how the coronavirus is different from others and the effects of temperature and old age have been also discussed.

2020 ◽  
Vol 11 (4) ◽  
pp. 11724-11736

Chikungunya is a mosquito-borne disease caused by the alphavirus that belongs to the family Togaviridae. It was first identified in 1952 when the first outbreak of chikungunya occurred in the Tanganyika. From them, several outbreaks had been taken place around the globe, making a severe threat to the human population. High-grade fever, nausea, and body pain mislead the disease with Dengue fever. Disease effects are long-lasting; the disease is characterized by severe joint pains, which leads to arthralgia. To date, no direct treatment is available for the infection, which puts a heavy burden on society. In this review article, the authors focus on the outbreaks of chikungunya since1952 to 2019 worldwide. The mutations occurred in the proteome of chikungunya. The evolution occurred because of those mutations and their effects on human societies. The study results that the two mutations in the proteome made the species more vulnerable to society. The outbreak study suggests that numerous chikungunya cases had been identified worldwide with the common symptoms that turn severe with these mutations. This study result reveals that scientists and researchers must focus on the disease's intensity and work progressively to find the solution for this emerging disease.


MRS Advances ◽  
2020 ◽  
Vol 5 (63) ◽  
pp. 3389-3395
Author(s):  
R. González-Díaz ◽  
D. Fernández-Sánchez ◽  
P. Rosendo-Francisco ◽  
G. Sánchez-Legorreta

AbstractIn this work, the first results of the effects of temperature during the production of Se2- ions and the effect during the interaction of Cd2+ and Se2- ions in the synthesis process of CdSe nanoparticles are presented. The synthesis of CdSe was carried out by the colloidal technique, in the first one we used a temperature of 63 °C to produce Se2- ions and in the second one an interaction temperature of 49 °C. The samples were characterized using a Scanning Electron Microscope (SEM) and a Scanning Tunneling Microscope (STM). From the SEM micrographs it was possible to identify the thorns formation and irregular islands. STM micrographs reveal elliptical shapes with a regular electron cloud profile.


1964 ◽  
Vol 4 (2) ◽  
pp. 332-355 ◽  
Author(s):  
Khurshid Haroon ◽  
Yasmin Azra Jan

Very little of the intense interest and activity in the field of family planning in Pakistan has come up in the form of publications. Since the formation of the Family Planning Association of Pakistan in 1953 and the initiative of the government in promoting a national family-planning programme in its Second Five-Year Plan, relatively few reports have been printed. Most of what has been written in Pakistan about family planning has either been reported at conferences abroad or published in foreign journals, or submitted as graduate dissertations at universities within the country and abroad1. While numerous papers presented at conferences in Pakistan have been given limited circulation in mimeographed form2, much of the preliminary data, emanating from most of the action-research projects in progress, are held up till substantive demographic changes are measured and approaches evaluated accordingly.


2019 ◽  
Vol 09 ◽  
Author(s):  
Hossein Zaeri ◽  
Bahareh Kamyab Moghadas ◽  
Bijan Honarvar ◽  
Ali Shokuhi Rad

: In this research, the extraction of essential oil from Calotropis Procera with the family name of Asclepiadaceae, by supercritical carbon dioxide (CO2) solvent has been investigated in detail, and the yield and chemical profile of the extracts achieved by this method were compared with those resulted by the conventional Hydro distillation method. To optimize the process parameters of CO2 supercritical extraction (SCE) of the Calotropis Procera, the Response Surface Methodology (RSM) with central composite design (CCD) was employed. The effects of temperature, pressure, and extraction time on the oil yield are considered for investigation. Results showed that the data were sufficiently fitted into the second-order polynomial model. The extraction conditions, including pressure, temperature, and extraction time, were studied between 150-200 bar, 40-50 ºC, and 50-100 min, respectively. The optimal conditions are achieved as the temperature of 47.19ºC, the pressure of 172.2 bar, and time of 86 minutes with the retrieval rate of 31.39%.


Author(s):  
Rakshith . ◽  
Shivakumar . ◽  
Sreeharsha . ◽  
Divyasree .

The core principles in Ayurveda give prime importance to Agni, Prakriti, Ahara (food) and Vihara (lifestyle) in maintaining health. Present era people are scheduled to one or the other works due to which they are following unrightful food and habits which lead the manifestation of one of the common disorder which troubles person a lot - Amlapitta. By excess “Hurry, Worry and Curry” GIT disorders are the most common, not only affecting physical health but also psychological and social health. Amlapitta is one of that and it is a burning problem of the whole World. Amalpitta is composed of word Amla and Pitta. Amlapitta is a very common disease caused by Vidagdha Pitta with features like Amlodgara, Tiktodgara, Hrit, Kantha Daha etc. Pathya recommended in Amlapitta are Yava, Godhuma, Purana Shali, Mudga Yusha, Lajasaktu etc. Apathya recommended in Amlapitta are Navanna, Avidugdha, Masha, Kulattha, Dadhi and etc. So this present review article throws light on Pathya (conducive) and Apathya (non conducive) in Amlapitta.


2020 ◽  
Vol 12 (17) ◽  
pp. 17374-17379
Author(s):  
W.G.D. Chathuranga ◽  
K. Kariyawasam ◽  
Anslem De Silva ◽  
W.A.Priyanka P. De Silva

We investigated the impact of dipteran predators on eggs in foam nests of the Common Hour-glass Tree Frog Polypedates cruciger Blyth, 1852 (Anura: Rhacophoridae) in central Sri Lanka.  Foam nests (n=24) of P. cruciger were examined at their natural breeding habitats and infected (n=8) and uninfected spawns (n=16) were identified.  Emerging tadpoles were collected in a water container hung under each spawn and the average number of tadpoles (N) hatched from infected spawns (N=0) was compared with that of uninfected spawns (N=354 ± 67).  Three severely infected spawns were brought to the laboratory and the fly larvae were reared until they metamorphosed to adults.  Morphological and molecular identification of the flies confirmed them as belonging to Caiusa testacea Senior-White, 1923 of the family Calliphoridae.  The infected spawns were completely destroyed and an estimated average of 400 P. cruciger eggs per spawn were lost.  The results revealed a high impact of Caiusa testacea on egg and embryo mortality of P. cruciger.


Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1609
Author(s):  
Lutfun Nahar ◽  
Shaymaa Al-Majmaie ◽  
Afaf Al-Groshi ◽  
Azhar Rasul ◽  
Satyajit D. Sarker

Dihydrofuranocoumarin, chalepin (1) and furanocoumarin, chalepensin (2) are 3-prenylated bioactive coumarins, first isolated from the well-known medicinal plant Ruta chalepensis L. (Fam: Rutaceae) but also distributed in various species of the genera Boenminghausenia, Clausena and Ruta. The distribution of these compounds appears to be restricted to the plants of the family Rutaceae. To date, there have been a considerable number of bioactivity studies performed on coumarins 1 and 2, which include their anticancer, antidiabetic, antifertility, antimicrobial, antiplatelet aggregation, antiprotozoal, antiviral and calcium antagonistic properties. This review article presents a critical appraisal of publications on bioactivity of these 3-prenylated coumarins in the light of their feasibility as novel therapeutic agents and investigate their natural distribution in the plant kingdom, as well as a plausible biosynthetic route.


Mathematics ◽  
2021 ◽  
Vol 9 (16) ◽  
pp. 1835
Author(s):  
Antonio Barrera ◽  
Patricia Román-Román ◽  
Francisco Torres-Ruiz

A joint and unified vision of stochastic diffusion models associated with the family of hyperbolastic curves is presented. The motivation behind this approach stems from the fact that all hyperbolastic curves verify a linear differential equation of the Malthusian type. By virtue of this, and by adding a multiplicative noise to said ordinary differential equation, a diffusion process may be associated with each curve whose mean function is said curve. The inference in the resulting processes is presented jointly, as well as the strategies developed to obtain the initial solutions necessary for the numerical resolution of the system of equations resulting from the application of the maximum likelihood method. The common perspective presented is especially useful for the implementation of the necessary procedures for fitting the models to real data. Some examples based on simulated data support the suitability of the development described in the present paper.


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