scholarly journals The genus Discolaimus in Southern Africa. I. Introduction and redescription of D. krugeri Furstenberg & Heyns, 1966 (Nematoda: Dorylaimida)

Koedoe ◽  
2000 ◽  
Vol 43 (2) ◽  
Author(s):  
J. Heyns
Keyword(s):  
South Africa ◽  
Southern Africa ◽  
Reproductive System ◽  
Female Reproductive System ◽  
Single Male ◽  
Oesophageal Gland

A survey of the literature leads to the conclusion that males are rare or absent in about half of the known species of Discolaimus and probably seldom functional, except in two species where spermathecae are present in the female reproductive system, viz. D. krugeri and D. levinae. The structure of the female gonads and the location of the oesophageal gland nuclei are discussed. A redescription of D. krugeri is given, based on material from several localities in South Africa as well as a single male from Namibia.

XIX.—The Female Reproductive System and Corpora Lutea of the False Killer Whale, Pseudorca crassidens Owen

1938 ◽  
Vol 59 (2) ◽  
pp. 521-531 ◽  
Author(s):  
L. C. Comrie ◽  
Ann B. Adam
Keyword(s):  
South Africa ◽  
Reproductive System ◽  
Killer Whale ◽  
Corpora Lutea ◽  
Female Reproductive System ◽  
Galapagos Archipelago ◽  
False Killer Whale ◽  
Preliminary Account ◽  
Pseudorca Crassidens

The material to be described here was taken from individuals of a school of Pseudorca crassidens, forty-one of which were stranded at Buddon Ness in the estuary of the Tay in November 1935. There is very little published work on this species beyond reports on the occurrence of stranded individuals. Beebe (1924) refers to six skeletons found on the shores of the Galapagos Archipelago, and West (1935) gave a preliminary account of a male fœtus taken from a female stranded in Wales. More recently, Peacock, Comrie, and Greenshields (1936) gave an account of the Tay specimens, while Fraser (1936) published a review of various strandings around our British coasts, and Gill (1935) has dealt with those stranded in South Africa (see abstract in Nature, September 1936). With regard to the reproductive system valuable assistance has been obtained from recent researches on other species by MacIntosh and Wheeler (1929), Wheeler (1930), Ommanney (1932), and Laurie (1937), published in Discovery Reports, while earlier papers, also on other species, by Schulte (1916) and Meek (1918) have also been consulted.

Region of Birth and Child Mortality among Black Migrants to South Africa: Is there a foreign-born advantage?

2016 ◽  
Vol 13 (3) ◽  
pp. 359-376 ◽  
Author(s):  
Tiffany L Green ◽  
Amos C Peters
Keyword(s):  
South Africa ◽  
South African ◽  
Child Mortality ◽  
Southern Africa ◽  
Strong Relationship ◽  
Developed Countries ◽  
Black Immigrants ◽  
Foreign Born ◽  
Region Of Origin ◽  
Child Deaths

Much of the existing evidence for the healthy immigrant advantage comes from developed countries. We investigate whether an immigrant health advantage exists in South Africa, an important emerging economy.  Using the 2001 South African Census, this study examines differences in child mortality between native-born South African and immigrant blacks.  We find that accounting for region of origin is critical: immigrants from southern Africa are more likely to experience higher lifetime child mortality compared to the native-born population.  Further, immigrants from outside of southern Africa are less likely than both groups to experience child deaths.  Finally, in contrast to patterns observed in developed countries, we detect a strong relationship between schooling and child mortality among black immigrants.

FEMALE ENDOCRINE CONTROL MECHANISMS DURING THE NEONATAL PERIOD

1972 ◽  
Vol 70 (2) ◽  
pp. 396-408 ◽  
Author(s):  
K.-D. Schulz ◽  
H. Haarmann ◽  
A. Harland
Keyword(s):  
Protein Synthesis ◽  
Reproductive System ◽  
Rna Synthesis ◽  
Neonatal Period ◽  
High Dose ◽  
Female Reproductive System ◽  
Endocrine Control ◽  
Hypothalamic Region ◽  
Rna And Protein Synthesis ◽  
Physiological Dose

ABSTRACT The present investigation deals with the oestrogen-sensitivity of the female reproductive system during the neonatal period. Newborn female guinea pigs were used as test animals. At different times after a single subcutaneous injection of a physiological dose of 0.1 μg or an unphysiologically high dose of 10 μg 17β-oestradiol/100 g body weight, the RNA- and protein-synthesis was examined in the hypothalamic region, pituitary, cerebral cortex, liver, adrenal gland, ovary and uterus. With a physiological dose an increase in organ weight, protein content, RNA-and protein-synthesis was found only in the uterus. These alterations turned out to be dose-dependent. In addition to the findings in the uterus an inhibition of the aminoacid incorporation rate occurred in the liver following the injection of the high oestradiol dose. As early as 1 hour after the administration of 0.1 μg 17β-oestradiol an almost 100% increase in uterine protein synthesis was detectable. This result demonstrates a high oestrogen-sensitivity of this organ during the neonatal period. All the other organs of the female reproductive system such as the hypothalamus, pituitary and ovary did not show any oestrogen response. Therefore the functional immaturity of the uterus during post partem life is not the result of a deficient hormone sensitivity but is correlated with the absence of a sufficient hormonal stimulus at this time. The investigation on the effects of actinomycin resulted in different reactions in the uterus and liver. In contrast to the liver a paradoxical actinomycin effect was found in the uterus after treatment with actinomycin alone. This effect is characterized by a small inhibition of RNA-synthesis and a 50% increase in protein synthesis. The treatment of the newborn test animals with actinomycin and 17β-oestradiol together abolished the oestrogen-induced stimulation of the uterine RNA-and protein-synthesis. Consequently, the effect of oestrogens during the neonatal period is also connected with the formation of new proteins via an increased DNA-directed RNA-synthesis.

Effect of Cryopreserved Placental Explants on Female Reproductive System Under Normal and Pathological Conditions (Experimental study)

2017 ◽  
Vol 27 (3) ◽  
pp. 250-265 ◽  
Author(s):  
Volodymyr Yu. Prokopyuk ◽  
◽  
Olga V. Grischenko ◽  
Oleksandra V. Prokopyuk ◽  
Nadiia O. Shevchenko ◽  
...  
Keyword(s):  
Experimental Study ◽  
Reproductive System ◽  
Female Reproductive System ◽  
Pathological Conditions

Reverend Doctor Sox Leleki and His Role in the Black Methodist Consultation

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Sonwabile Mancotywa
Keyword(s):  
South Africa ◽  
Southern Africa ◽  
Political Influence ◽  
Individual Member ◽  
Methodist Church ◽  
Role Players

The Methodist Church of Southern Africa (MCSA) is one of the mainline Christian denominations with a very good history. However, it was not immune from the larger political influence of South Africa that was polarised by apartheid. This article is intended to look at the formation known as the Black Methodist Consultation (BMC), which at that time had an individual member who played an important role in its development and activities. Sox Leleki was one of the key role players of this movement inside the Methodist Church

ROLE OF ULTRASOUND IN THE DETECTION OF RECURRENT OVARIAN CANCER

2020 ◽  
Vol 6 (1) ◽  
pp. 23-31
Author(s):  
M. Alisherova ◽  
◽  
M. Ismailova
Keyword(s):  
Ovarian Cancer ◽  
Surgical Treatment ◽  
Reproductive System ◽  
Malignant Tumors ◽  
Recurrent Ovarian Cancer ◽  
Primary Diagnosis ◽  
Female Reproductive System

Currently, there are no standard approaches to monitoring patients with ovarian cancer (OC). While the role of ultrasound (US) has been identified in the primary diagnosis of OS, it is still controversial during the subsequent surgical treatment of OC. In world statistics, ovarian cancer is consistently among the four main localizations of malignant tumors of the female reproductive system, along with tumors of the breast, body and cervix.

Ores Sources, Smelters and Archaeometallurgy: Exploring Iron Age Metal Production in the Southern Waterberg, South Africa

2013 ◽  
Vol 11 (2) ◽  
pp. 243-267 ◽  
Author(s):  
Foreman Bandama ◽  
Shadreck Chirikure ◽  
Simon Hall
Keyword(s):  
South Africa ◽  
Iron Age ◽  
Southern Africa ◽  
Mineral Resources ◽  
Limpopo Province ◽  
Metal Working ◽  
Cultural Interaction ◽  
Metal Production ◽  
European Colonization ◽  
Sem Analyses

The Southern Waterberg in Limpopo Province is archaeologically rich, especially when it comes to evidence of pre-colonial mining and metal working. Geologically, the area hosts important mineral resources such as copper, tin and iron which were smelted by agriculturalists in the precolonial period. In this region however, tin seems to be the major attraction given that Rooiberg is still the only source of cassiterite in southern Africa to have provided evidence of mining before European colonization. This paper reports the results of archaeological and archaeometallurgical work which was carried out in order to reconstruct the technology of metalworking as well as the cultural interaction in the study area and beyond. The ceramic evidence shows that from the Eiland Phase (1000–1300 AD) onwards there was cross borrowing of characteristic decorative traits amongst extant groups that later on culminated in the creation of a new ceramic group known as Rooiberg. In terms of mining and metal working, XRF and SEM analyses, when coupled with optical microscopy, indicate the use of indigenous bloomery techniques that are widespread in pre-colonial southern Africa. Tin and bronze production was also represented and their production remains also pin down this metallurgy to particular sites and excludes the possibility of importing of finished tin and bronze objects into this area.

Participatory catchment management — an opportunity for Southern Africa

1995 ◽  
Vol 32 (5-6) ◽  
pp. 145-151
Author(s):  
D. B. Versfeld
Keyword(s):  
South Africa ◽  
Land Management ◽  
Southern Africa ◽  
Participatory Rural Appraisal ◽  
Catchment Management ◽  
Management Process ◽  
Participatory Methods ◽  
Top Down ◽  
Kwazulu Natal ◽  
Rural Appraisal

South Africa has hundreds of thousands of hectares of heavily populated and badly degraded landscapes. Past attempts at land management have been either through avoidance or the top-down imposition of “betterment” schemes. Participatory methods offer a new opportunity for communities living within these catchments to share their knowledge and to become involved in planning and implementing the management process. This paper discusses the use of Participatory Rural Appraisal (PRA) in a catchment rehabilitation programme in rural KwaZulu/Natal, the lessons learnt and the prospects for wider application.

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