The karyotype of Bemisia tabaci (Hemiptera: Aleyrodidae)

1998 ◽  
Vol 88 (2) ◽  
pp. 213-215 ◽  
Author(s):  
R. L Blackman ◽  
M Cahill
Keyword(s):  
Bemisia Tabaci ◽  
Sibling Species ◽  
Multidisciplinary Research ◽  
Host Races ◽  
Rapid Spread ◽  
The World ◽  
New Form ◽  
Highly Virulent ◽  
B Biotype

Whiteflies of the Bemisia tabaci (Gennadius) group are a major and increasing problem for agriculture throughout the world. In particular, the appearance and rapid spread of a highly virulent new form (silver-leaf whitefly, or B-biotype; Brown et ah, 1995), and recognition that the problem involves a complex of sibling species, host races and/or biotypes has stimulated intensive multidisciplinary research on this insect in recent years (Gerling & Mayer, 1996).

Biotype determination of Spanish populations of Bemisia tabaci (Hemiptera: Aleyrodidae)

1997 ◽  
Vol 87 (6) ◽  
pp. 587-593 ◽  
Author(s):  
P. Guirao ◽  
F. Beitia ◽  
J. L. Cenis
Keyword(s):  
Bemisia Tabaci ◽  
Balearic Islands ◽  
Genetic Types ◽  
Esterase Pattern ◽  
Rapd Pcr ◽  
The World ◽  
Spanish Populations ◽  
B Biotype ◽  
Esterase Patterns

AbstractA survey was made to assess the biotype status of populations of the whitefly Bemisia tabaci (Gennadius) in Spain. The study involved observation of the squash silverleaf reaction, analysis of esterase patterns and application of a RAPD-PCR technique. The results obtained by the three methods were fully consistent and showed that the Spanish populations of B. tabaci were composed of two genetic types. One corresponded to populations of the B biotype, found in Tenerife (Canary Islands), Barcelona, Madrid, Malaga and Almeria. The other, showing a unique RAPD and esterase pattern, was found in Majorca (Balearic Islands), Seville, Valencia, Murcia and Almeria, as well as in the Algarve Region of Portugal. RAPD patterns of other populations from the rest of the world used for comparison showed that populations from Arizona (USA), Israel, France, Denmark, Italy, Netherlands and Japan have similar RAPD patterns typical of the B biotype. By contrast, populations from the Iberian Peninsula, Turkey, India, Pakistan and Arizona (A biotype), showed different and unique patterns.

Explore the Possible Impact of BCG Vaccination Policy on the Morbidity, Mortality, and Recovery Rates due to COVID-19 Infection. (Preprint)

2020 ◽  
Author(s):  
Yue-Cune Chang
Keyword(s):  
Odds Ratio ◽  
Randomized Clinical Trials ◽  
Vaccination Policy ◽  
Bacille Calmette Guerin ◽  
Recovery Rates ◽  
Bcg Vaccination ◽  
The World ◽  
New Form ◽  
The Relationship ◽  
Disease Specific

BACKGROUND The Coronavirus Disease-19 (COVID-19) is the new form of an acute infectious respiratory disease and has quickly spread over most continents in the world. Recently, it has been shown that Bacille Calmette-Guerin (BCG) might protect against COVID-19. This study aims to investigate the possible correlation between BCG vaccination and morbidity/mortality/recovery rate associated with COVID-19 infection. OBJECTIVE Our findings confirm that the BCG vaccination might protect against COVID-19 virus infection. METHODS Data of COVID-19 confirmed cases, deaths, recoveries, and population were obtained from https://www.worldometers.info/coronavirus/ (Accessed on 12 June, 2020). To have meaningful comparisons among countries’ mortality and recovery rates, we only choose those countries with COVID-19 infected cases at least 200. The Poisson regression and logistic regression were used to explore the relationship between BCG vaccination and morbidity, mortality and recovery rates. RESULTS Among those 158 countries with at least 200 COVID-19 infected cases, there were 141 countries with BCG vaccination information available. The adjusted rates ratio of COVID-19 confirmed cases for Current BCG vaccination vs. non-Current BCG vaccination was 0.339 (with 95% CI= (0.338,0.340)). Moreover, the adjusted odds ratio (OR) of death and recovery after coronavirus infected for Current BCG vaccination vs. non-Current BCG vaccination were 0.258 (with 95% CI= (0.254,0.261)) and 2.151 (with 95% CI= (2.140,2.163)), respectively. CONCLUSIONS That data in this study show the BCG might provide the protection against COVID-19, with consequent less COVID-19 infection and deaths and more rapid recovery. BCG vaccine might bridge the gap before the disease-specific vaccine is developed, but this hypothesis needs to be further tested in rigorous randomized clinical trials. INTERNATIONAL REGISTERED REPORT RR2-https://doi.org/10.1101/2020.06.14.20131268

scholarly journals Importance of immunoglobulin therapy for COVID-19 patients with lymphocytopenia

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Heba K. Nabih
Keyword(s):  
Passive Immunization ◽  
Immunoglobulin Therapy ◽  
World Health ◽  
Clinical Feature ◽  
Main Body ◽  
Plasma Therapy ◽  
Rapid Spread ◽  
The World ◽  
Health Organization

Abstract Background The global coronavirus disease 2019 (COVID-19) was announced as pandemic by the World Health Organization (WHO). With the increased number of infected and dead victims daily all over the world, it becomes necessary to stop or overcome its rapid spread. Main body Although the production of vaccine or even specified effective anti-virus may take about six months to a year, intravenous immunoglobulin (IVIg) may be clinically used as a safe treatment to save and improve the quality of life of patients with a variety of immunodeficiency diseases such as lymphocytopenia, which is a common clinical feature in COVID-19. Conclusion Through the current review, it was concluded that this passive immunization may promote the immunity to better fight against the virus, so the survival of the patients could be kept longer. The efficacy of immunotherapy with IVIg would be greater if the immune IgG antibodies were collected from convalescent plasma therapy.

scholarly journals First Report of B-Biotype Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) in Australia

1995 ◽  
Vol 34 (2) ◽  
pp. 116-116 ◽  
Author(s):  
ROBIN V. GUNNING ◽  
FRANK J. BYRNE ◽  
BARRY D. CONDÉ ◽  
MEGAN I. CONNELLY ◽  
KAYE HERGSTROM ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
First Report ◽  
B Biotype

scholarly journals Experience the World with Archetypal Symbols: A New Form of Aesthetics

2013 ◽  
pp. 205-214 ◽  
Author(s):  
Huang-Ming Chang ◽  
Leonid Ivonin ◽  
Marta Diaz ◽  
Andreu Catala ◽  
Wei Chen ◽  
...  
Keyword(s):  
The World ◽  
New Form

scholarly journals Patriarchy in the Digital Conjuncture: An Analysis of Google’s James Damore

2020 ◽  
Author(s):  
Ben Little ◽  
Alison Winch
Keyword(s):  
Scientific Method ◽  
Software Engineer ◽  
High Stress ◽  
Silicon Valley ◽  
High Status ◽  
The Core ◽  
Core Belief ◽  
The World ◽  
New Form

Our case study looks at the events surrounding the sacking ofGoogle engineer James Damore who was fired for authoring a memo which stated that women are biologically less suited to high-stress, high-status technical employment than men. Damore, asserting that his document ‘was absolutely consistent with what he’d seen online’, instantly became an ambivalent hero of the alt-right. Like the men who own and run the companies of Silicon Valley, the software engineer subscribes to the idea that the world can be understood and altered through the rigorous application of the scientific method. And as he draws on bodies of knowledge from evolutionary psychology and mathematical biology, we see how the core belief structures of Silicon Valley, when transferred from the technical to the cultural and social domain, can reproduce the sort of misogynistic ‘rationalism’ that fuels the alt-right. We argue that Damore’s memo is in line with Google’s ideology of ‘dataism’: that is the belief that the world can be reduced to decontextualised information and subject to quantifiable logics.Through its use of dataism, the memo reveals much about the similarities and continuities between Damore, the ideas laid out n his memo, and Google itself. Rather than being in opposition, these two entities are jostling for a place in the patriarchal structures of a new form of capitalism.

scholarly journals Coronavirus Disease 2019 Occupational Considerations for Surgeons: A Review Article

2021 ◽  
Vol 10 (1) ◽  
pp. 36-41
Author(s):  
Seyed Hesamaddin Banihashemi ◽  
Ahmadreza Karimi ◽  
Hasti Nikourazm ◽  
Behnaz Bahmanyar ◽  
Dariush Hooshyar
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
World Health Organization ◽  
Medical Staff ◽  
Review Article ◽  
World Health ◽  
Published Data ◽  
Rapid Spread ◽  
The World ◽  
Health Organization ◽  
And Control

The severe acute respiratory syndrome coronavirus 2 virus and its associated disease, called coronavirus disease 2019 (COVID-19), first appeared in Wuhan, China in December 2019 and quickly spread around the world. Coronavirus was officially named COVID-19 by the World Health Organization and was recognized as a pandemic due to its rapid spread worldwide. Based on the published data, it is hoped to provide a source for later studies and to help prevent and control the contagious COVID-19 and its characteristics, and considerations that surgeons and medical staff must observe during the epidemic.

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