Fasciola gigantica and Fasciola hybrids in Southeast Asia.

2021 ◽  
pp. 423-460
Author(s):  
Nichola Eliza Davies Calvani ◽  
Jan Šlapeta

Abstract This book chapter describes the life cycle of F. gigantica and its differences from F. hepatica, including its economic importance and control options available, with particular emphasis on the importance of the smallholder farmers and the role of rice fields in maintaining the life cycle in Southeast Asia.

Author(s):  
Shefali Virkar

The Information Revolution has greatly impacted how nation-states and societies relate to one another; particularly wherein new, or hitherto less powerful, actors have emerged to bypass and influence established channels of power, altering the manner in which nation-states define their interests, power bases, security, and increasingly, their innate ability to govern and control flows of information. This book chapter investigates the ‘winner-takes-all' hypothesis relative to how the Internet, its associated platforms, and technologies have been harnessed to enhance the activities of both transnational terrorist networks and the organisations, clusters, and individuals dedicated to researching and combating them. The issues covered by this research raise important questions about the nature and the use of technology by state and non-state actors in an asymmetric ‘information war'; of how ideas of terrorism, surveillance, and censorship are conceptualised, and manner in which the role of the nation-state in countering and pre-empting threats to national security has been redefined.


1962 ◽  
Vol 42 (1) ◽  
pp. 122-129 ◽  
Author(s):  
C. O. Gourley

A comparative study of Dibotryon morbosum (Sch.) Th. & Syd. on peach and plum showed the life cycle to be the same on both hosts. Peach knots were less prominent and produced very few mature perithecia. Plum inoculum was considered to be largely responsible for infections on the peach. The morphology and cultural characteristics of the isolates from the two hosts were similar. Ascospores from plum knots readily infected peach seedlings but those from peach knots did not infect peach or plum seedlings. The colonization of knots by extraneous organisms affected the maturation of perithecia. Of the fungicides used thiram was the most satisfactory for the control of black knot on plum. These investigations indicate that black knot is not of serious economic importance on peach.


2007 ◽  
Vol 20 (2) ◽  
pp. 323-367 ◽  
Author(s):  
J. P. Dubey ◽  
G. Schares ◽  
L. M. Ortega-Mora

SUMMARY Neospora caninum is a protozoan parasite of animals. Until 1988, it was misidentified as Toxoplasma gondii. Since its first recognition in dogs in 1984 and the description of the new genus and species Neospora caninum in 1988, neosporosis has emerged as a serious disease of cattle and dogs worldwide. Abortions and neonatal mortality are a major problem in livestock operations, and neosporosis is a major cause of abortion in cattle. Although antibodies to N. caninum have been reported, the parasite has not been detected in human tissues. Thus, the zoonotic potential is uncertain. This review is focused mainly on the epidemiology and control of neosporosis in cattle, but worldwide seroprevalences of N. caninum in animals and humans are tabulated. The role of wildlife in the life cycle of N. caninum and strategies for the control of neosporosis in cattle are discussed.


2020 ◽  
Vol 13 (2) ◽  
pp. 29-41
Author(s):  
Sri Mulyani ◽  
Aqil Teguh Fathani ◽  
Eko Priyo Purnomo

Abstrak. Tujuan penelitian ini melihat ketahanan pangan berkelanjutan yang merupakan suatu kewajiban dan harus dilakukan untuk menjaga ketersediaan pangan khususnya padi. Pada saat ini di Sumatera Barat sedang maraknya terjadi alih fungsi lahan lawah. Alih fungsi lahan sawah ini disebabkan oleh pembangunan infrastruktur, perumahan, jalan, jalan tol, sarana umum dan fasiltas lainnya. Metode dalam penelitian ini menggunakan metode kualitatif dengan pendekatan rasionalistik. Hasil penelitian menyebutkan dengan adanya alih fungsi lahan sawah menyebabkan luas panen terhadap padi dan jumlah produksi padi terus berkurang. Pada tahun 2018 terjadi pengurangan luas panen dan produksi padi yang sangat signifikan dari tahun sebelumnya (2017) yaitu sebesar 220 ribu ha luas panen padi dan 1.4 juta ton produksi padi. Hal ini dinilai sangat berbahaya bagi ketahanan pangan yang berkelanjutan karena jumlah penduduk terus bertambah dan juga kebutuhan terhadap pangan juga semakin meningkat sedangkan jumlah produksi justru terus berkurang. Oleh karena itu perlu adanya peran dari semua unsur untuk mengkontrol dan mengendalikan lahan sawah serta pemerintah dengan segera membuat regulasi Peraturan Daerah untuk mengatur lahan sawah agar tidak terjadi alih fungsi lahan sawah secara berkelanjutan.Protection of Rice Fields in Achieving National Food SecurityAbstract. The purpose of this research is to see sustainable food security which is an obligation and must be done to maintain food availability, especially rice. The function of paddy fields is caused by the development of infrastructure, housing, roads, toll roads, public means, and other facilities. The methods in this study used qualitative methods with a rationalistic approach. The results of the study mentioned that the Land of rice field function caused the harvest area to rice and the amount of rice production continued to decrease. In 2018 there was a reduction in the vast harvest and rice production which was significantly from the previous year which amounted to 220 thousand hectares of rice harvest and 1.4 million tonnes of rice production. This is very dangerous for sustainable food security because the population continues to grow and also the need for food is also increasing while the number of production is steadily decreasing. Therefore, it is necessary to have the role of all elements to control and control the rice fields and government by immediately make the regulation of local regulations to regulate the field of rice fields to prevent the functioning of the rice field sustainability.


2016 ◽  
Vol 43 ◽  
pp. 381-397 ◽  
Author(s):  
Pierre Echaubard ◽  
Banchob Sripa ◽  
Frank F. Mallory ◽  
Bruce A. Wilcox

2016 ◽  
pp. 521-546
Author(s):  
Shefali Virkar

The Information Revolution has greatly impacted how nation-states and societies relate to one another; particularly wherein new, or hitherto less powerful, actors have emerged to bypass and influence established channels of power, altering the manner in which nation-states define their interests, power bases, security, and increasingly, their innate ability to govern and control flows of information. This book chapter investigates the ‘winner-takes-all' hypothesis relative to how the Internet, its associated platforms, and technologies have been harnessed to enhance the activities of both transnational terrorist networks and the organisations, clusters, and individuals dedicated to researching and combating them. The issues covered by this research raise important questions about the nature and the use of technology by state and non-state actors in an asymmetric ‘information war'; of how ideas of terrorism, surveillance, and censorship are conceptualised, and manner in which the role of the nation-state in countering and pre-empting threats to national security has been redefined.


Author(s):  
R. F. Zeigel ◽  
W. Munyon

In continuing studies on the role of viruses in biochemical transformation, Dr. Munyon has succeeded in isolating a highly infectious human herpes virus. Fluids of buccal pustular lesions from Sasha Munyon (10 mo. old) uiere introduced into monolayer sheets of human embryonic lung (HEL) cell cultures propagated in Eagles’ medium containing 5% calf serum. After 18 hours the cells exhibited a dramatic C.P.E. (intranuclear vacuoles, peripheral patching of chromatin, intracytoplasmic inclusions). Control HEL cells failed to reflect similar changes. Infected and control HEL cells were scraped from plastic flasks at 18 hrs. of incubation and centrifuged at 1200 × g for 15 min. Resultant cell packs uiere fixed in Dalton's chrome osmium, and post-fixed in aqueous uranyl acetate. Figure 1 illustrates typical hexagonal herpes-type nucleocapsids within the intranuclear virogenic regions. The nucleocapsids are approximately 100 nm in diameter. Nuclear membrane “translocation” (budding) uias observed.


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