Ramularia leaf spot in barley

2021 ◽  
pp. 681-706
Author(s):  
Neil Havis ◽  
Keyword(s):  
Life Cycle ◽  
Leaf Spot ◽  
Fungicide Resistance ◽  
Complex Life Cycle ◽  
Rate Of Development ◽  
Major Disease ◽  
Ramularia Leaf Spot ◽  
The World ◽  
Causal Pathogen ◽  
And Control

Ramularia leaf spot is an emerging pathogen across barley growing regions of the world. It's rise from minor to major disease has been rapid over the last twenty years. The causal pathogen, Ramularia collo-cygni is poorly understood but it has been shown to have a complex life cycle and the ability to exist on many hosts in an endophytic state. The rate of development of fungicide resistance in the fungus is also extremely fast and many of the major single site fungicides are no longer effective in many countries. With multisite fungicides having their approval or reconsidered and no consistent varietal resistance available, control of the disease is increasing challenging. This chapter reviews the latest research into Ramularia biology and control and highlights the areas where recent advances have been made.

scholarly journals Old and Recent Advances in Life Cycle, Pathogenesis, Diagnosis, Prevention, and Treatment of Malaria Including Perspectives in Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Dejen Nureye ◽  
Solomon Assefa
Keyword(s):  
Life Cycle ◽  
Anopheles Funestus ◽  
New Drugs ◽  
Complex Life Cycle ◽  
Malaria Vectors ◽  
Clear Understanding ◽  
Human Beings ◽  
High Prevalence ◽  
The World ◽  
Prevention And Treatment

Malaria, caused by apicomplexan parasite, is an old disease and continues to be a major public health threat in many countries. This article aims to present different aspects of malaria including causes, pathogenesis, prevention, and treatment in an articulate and comprehensive manner. Six Plasmodium species are recognized as the etiology of human malaria, of which Plasmodium falciparum is popular in East and Southern Africa. Malaria is transmitted mainly through Anopheles gambiae and Anopheles funestus, the two most effective malaria vectors in the world. Half of the world’s population is at risk for malaria infection. Globally, the morbidity and mortality rates of malaria have become decreased even though few reports in Ethiopia showed high prevalence of malaria. The malaria parasite has a complex life cycle that takes place both inside the mosquito and human beings. Generally, diagnosis of malaria is classified into clinical and parasitological diagnoses. Lack of clear understanding on the overall biology of Plasmodium has created a challenge in an effort to develop new drugs, vaccines, and preventive methods against malaria. However, three types of vaccines and a lot of novel compounds are under perclinical and clinical studies that are triggered by the occurrence of resistance among commonly used drugs and insecticides. Antiadhesion adjunctive therapies are also under investigation in the laboratory. In addition to previously known targets for diagnostic tool, vaccine and drug discovery scientists from all corner of the world are in search of new targets and chemical entities.

Ultrastructural analysis of “Sensory” surface nerve endings and “putative” neurotransmitter sites in Schistosoma mansoni Miracidia

1989 ◽  
Vol 47 ◽  
pp. 962-963
Author(s):  
Betty Ruth Jones ◽  
Steve Chi-Tang Pan
Keyword(s):  
Nervous System ◽  
Life Cycle ◽  
Schistosoma Mansoni ◽  
Snail Host ◽  
Complex Life Cycle ◽  
Rational Approach ◽  
Effective Control ◽  
The Social ◽  
Social And Economic Development ◽  
Basic Biology

INTRODUCTION: Schistosomiasis has been described as “one of the most devastating diseases of mankind, second only to malaria in its deleterious effects on the social and economic development of populations in many warm areas of the world.” The disease is worldwide and is probably spreading faster and becoming more intense than the overall research efforts designed to provide the basis for countering it. Moreover, there are indications that the development of water resources and the demands for increasing cultivation and food in developing countries may prevent adequate control of the disease and thus the number of infections are increasing.Our knowledge of the basic biology of the parasites causing the disease is far from adequate. Such knowledge is essential if we are to develop a rational approach to the effective control of human schistosomiasis. The miracidium is the first infective stage in the complex life cycle of schistosomes. The future of the entire life cycle depends on the capacity and ability of this organism to locate and enter a suitable snail host for further development, Little is known about the nervous system of the miracidium of Schistosoma mansoni and of other trematodes. Studies indicate that miracidia contain a well developed and complex nervous system that may aid the larvae in locating and entering a susceptible snail host (Wilson, 1970; Brooker, 1972; Chernin, 1974; Pan, 1980; Mehlhorn, 1988; and Jones, 1987-1988).

Invasive Shot Hole Borers Euwallacea fornicatus, E. kuroshio, and E. perbrevis (Coleoptera: Curculionidae: Scolytinae)

EDIS ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 7
Author(s):  
Demian F. Gomez ◽  
Jiri Hulcr ◽  
Daniel Carrillo
Keyword(s):  
South Africa ◽  
Invasive Species ◽  
Prevention And Control ◽  
Economic Impacts ◽  
Forest Resources ◽  
Economic Damage ◽  
Ambrosia Beetles ◽  
Invasive Insects ◽  
The World ◽  
And Control

Invasive species, those that are nonnative and cause economic damage, are one of the main threats to ecosystems around the world. Ambrosia beetles are some of the most common invasive insects. Currently, severe economic impacts have been increasingly reported for all the invasive shot hole borers in South Africa, California, Israel, and throughout Asia. This 7-page fact sheet written by Demian F. Gomez, Jiri Hulcr, and Daniel Carrillo and published by the School of Forest Resources and Conservation describes shot hole borers and their biology and hosts and lists some strategies for prevention and control of these pests. http://edis.ifas.ufl.edu/fr422

Knowledge and Awareness of Dengue Fever

2018 ◽  
pp. 219-222
Author(s):  
Y. Arockia Suganthi ◽  
Chitra K. ◽  
J. Magelin Mary
Keyword(s):  
Dengue Fever ◽  
Prevention And Control ◽  
Control Measures ◽  
Infection Transmission ◽  
Standard Guideline ◽  
The World ◽  
Different Types ◽  
Prevention And Control Measures ◽  
Dengue Prevention ◽  
And Control

Dengue fever is a painful mosquito-borne infection caused by different types of virus in various localities of the world. There is no particular medicine or vaccine to treat person suffering from dengue fever. Dengue viruses are transmitted by the bite of female Aedes (Ae) mosquitoes. Dengue fever viruses are mainly transmitted by Aedes which can be active in tropical or subtropical climates. Aedes Aegypti is the key step to avoid infection transmission to save millions of people in all over the world. This paper provides a standard guideline in the planning of dengue prevention and control measures. At the same time gives the priorities including clinical management and hospitalized dengue patients have to address essentially.

THE 2019 NOVEL PANDEMIC OF CORONAVIRUS DISEASE (COVID-19): A STUDY OF EXISTING EVIDENCE IN THE INDIAN POPULATION

2020 ◽  
Vol 7 (2) ◽  
pp. 199-204
Author(s):  
Shrikant Verma ◽  
Mohammad Abbas ◽  
Sushma Verma ◽  
Syed Tasleem Raza ◽  
Farzana Mahdi
Keyword(s):  
Disease Transmission ◽  
Indian Population ◽  
Respiratory Infections ◽  
Clinical Signs ◽  
Case Fatality ◽  
Public Health Emergency ◽  
The World ◽  
And Control ◽  
General Wellbeing ◽  
Different Parts

A novel spillover coronavirus (nCoV), with its epicenter in Wuhan, China's People's Republic, has emerged as an international public health emergency. This began as an outbreak in December 2019, and till November eighth, 2020, there have been 8.5 million affirmed instances of novel Covid disease2019 (COVID-19) in India, with 1,26,611 deaths, resulting in an overall case fatality rate of 1.48 percent. Coronavirus clinical signs are fundamentally the same as those of other respiratory infections. In different parts of the world, the quantity of research center affirmed cases and related passings are rising consistently. The COVID- 19 is an arising pandemic-responsible viral infection. Coronavirus has influenced huge parts of the total populace, which has prompted a global general wellbeing crisis, setting all health associations on high attentive. This review sums up the overall landmass, virology, pathogenesis, the study of disease transmission, clinical introduction, determination, treatment, and control of COVID-19 with the reference to India.

Intervenções de carreira ao longo da vida: perspectivas e desafios

2020 ◽  
Author(s):  
Iúri Novaes Luna ◽  
Valéria De Bettio Mattos
Keyword(s):  
Life Cycle ◽  
Human Development ◽  
National Literature ◽  
Research And Practice ◽  
Career Interventions ◽  
The World ◽  
Psychosocial Processes ◽  
Diversity Of Life ◽  
Professional Guidance ◽  
Central Purpose

This book, comprised of 13 chapters, presents papers which discuss the processes related to the career along one’s life cycle, from adolescents’ professional choices until processes of retirement. Notwithstanding the diversity of life and work contexts, present in the different chapters, they all somewhat correspond in their central purpose, presenting both perspectives and challenges related to contemporary career interventions. Some chapters address themes that are still seldom explored in national literature, while others discuss subjects that are long established in the area, however they are innovative. The authors study them in the context of changes in the world of work in the second decade of the 21st century, of the new career models and psychosocial processes that are linked to human development throughout life. The studies and practices in vocational guidance, career development and retirement, included in this book, are the results of research and practice in recent years carried out by professionals, professors and academics that in different ways have collaborated with the activities of LIOP - Laboratory of Information and Professional Guidance, at the Federal University of Santa Catarina.

Turkey’s foreign policy in perspective: Some regional and national interests

2020 ◽  
Vol 2020 (10-3) ◽  
pp. 82-92
Author(s):  
Gekkaya Funda
Keyword(s):  
Foreign Policy ◽  
Political Ideology ◽  
Geographical Location ◽  
National Interests ◽  
Security Culture ◽  
Center Stage ◽  
External Relations ◽  
The World ◽  
Transit Route ◽  
And Control

The formation of external policy of any country aims at serving the state’s interests. For this matter, many countries seek their way through this by taking into account the potential prospects available to them. The fundamental subtleties and factors that influence a state’s choices of external policy include geographical location, history, security, culture, trade, political ideology, military might, et cetera. Countries often make external contacts based on some regulations and response to unfolding events. Thus, external policy to an extent pertains to the guiding principles outlined to be pursued through state values, decisions and actions taken by the states themselves and their attempt to develop, manage and control the external relations of national societies. In this regard, the Caucasian region has been an important factor in Turkey’s foreign policy. Since these states emerged in the early 1990s, energy has taken a center stage within the region, while Turkey remains a transit route to the world...

Performance of 4G-LTE Communication and Navigation System in Blended Wing-Body UAS

2019 ◽  
Vol 8 (4) ◽  
pp. 9538-9542
Keyword(s):  
Satellite Communication ◽  
Line Of Sight ◽  
Multiple Factors ◽  
The World ◽  
New Type ◽  
Blended Wing Body ◽  
4G Lte ◽  
The Right ◽  
And Control ◽  
Technology Demonstrator

In vision of searching for the right Unmanned Aerial System (UAS) for a specific mission, there are multiple factors to be considered by the operator such as mission, endurance, type of payload and range of the telemetry and control. This research is focusing on extending control range of the UAS by using 4G-LTE network to enable beyond-line-of-sight flying for the commercial UAS. Major UAS such Global Hawk, Predator MQ-1 are able to fly thousands of kilometers by the use of satellite communication. However, the satellite communication annual license subscription can be very expensive. With this situation in mind, a new type of flight controller with 4G-LTE communication has been developed and tested. Throughout the research, blended-wing-body (BWB) Baseline B2S is used as the platform for technology demonstrator. Result from this analysis has proven that the proposed system is capable to control a UAS from as far as United Kingdom, with a latency less than 881 ms in average. The new added capability can potentially give the commercial UAS community a new horizon to be able to control their UAS from anywhere around the world with the availability of 4G-LTE connection

Life-cycle and control of Poa trivialis L. in wheat fields in Kagawa prefecture.

2010 ◽  
Vol 55 (4) ◽  
pp. 263-267
Author(s):  
Kiwamu Fujita ◽  
Yoshihiro Murakami ◽  
Takenori Miyashita
Keyword(s):  
Life Cycle ◽  
Poa Trivialis ◽  
And Control
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