scholarly journals Agave americana (Ketuke) toxicity in the kidney of Clarias batrachus

2018 ◽  
Vol 30 ◽  
pp. 244-247
Author(s):  
Archana Prasad ◽  
Rukmini Puri
Keyword(s):  
Behavioral Change ◽  
The Other ◽  
Clarias Batrachus ◽  
Epithelial Tissue ◽  
Renal Tubules ◽  
Histopathological Alterations ◽  
Agave Americana ◽  
Excessive Secretion ◽  
Loss Of Appetite ◽  
Different Parts

Different parts of plant have been used since many decades by humans for catching fishes. In this investigation, ‘ketuke ‘leaf effect was observed on behavioral change and histological alterations in the kidney of Clarias batrachus. Few fishes were kept as control i.e. not exposed to plant piscicide. The other fishes were exposed to 3gm per 30 liters of water for 24 and 48 hrs. In exposed fish’s restlessness, vigorous movement, excessive secretion of slime and loss of appetite was seen. Histologically, glomerular contraction, clumping of melanomacrophages, degeneration of epithelial tissue along with the degeneration of renal tubules and others were seen. Increase in the Bowman’s space was one of the noticeable changes. Extract accumulation was seen in the tissues. Exposure to sub lethal concentrations of Ketuke (Agave americana), caused duration dependent histopathological alterations in the kidney of Clarias batrachus which is discussed in the paper.

Status of Family Fissidentaceae in Gujarat

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
D.G. Shah ◽  
D.N. Mehta ◽  
R.V. Gujar
Keyword(s):  
Distinct Species ◽  
The State ◽  
The Other ◽  
Land Plants ◽  
Reproductive Structures ◽  
The Family ◽  
The Status ◽  
Vegetative Characters ◽  
First Time ◽  
Different Parts

Bryophytes are the second largest group of land plants and are also known as the amphibians of the plant kingdom. 67 species of bryophytes have been reported from select locations across the state of Gujrat. The status of family fissidentaceae which is a large moss family is being presented in this paper. Globally the family consists of 10 genera but only one genus, Fissidens Hedw. has been collected from Gujarat. Fissidens is characterized by a unique leaf structure and shows the presence of three distinct lamina, the dorsal, the ventral and the vaginant lamina. A total of 8 species of Fissidens have been reported from the state based on vegetative characters as no sporophyte stages were collected earlier. Species reported from the neighboring states also showed the absence of sporophytes. The identification of different species was difficult due to substantial overlap in vegetative characters. Hence a detailed study on the diversity of members of Fissidentaceae in Gujarat was carried out between November 2013 and February 2015. In present study 8 distinct species of Fissidens have been collected from different parts of the state. Three species Fissidens splachnobryoides Broth., Fissidens zollingerii Mont. and Fissidens curvato-involutus Dixon. have been identified while the other five are still to be identified. Fissidens zollingerii Mont. and Fissidens xiphoides M. Fleisch., which have been reported as distinct species are actually synonyms according to TROPICOS database. The presence of sexual reproductive structures and sporophytes for several Fissidens species are also being reported for the first time from the state.

scholarly journals Experiments on the kidneys of the frog. (Preliminary communication.)

1913 ◽  
Vol 86 (588) ◽  
pp. 355-364 ◽  
Keyword(s):  
Renal Arteries ◽  
Capillary Network ◽  
The Other ◽  
Renal Tubules ◽  
Complete Occlusion ◽  
Other Hand ◽  
Histological Appearance ◽  
Preliminary Communication ◽  
Portal Veins ◽  
The One

As is well known, the glomeruli of the frog’s kidney are supplied with blood only by the renal arteries, whereas the renal tubules have a double supply. On the one hand, they receive blood by way of the renal portal veins; on the other hand, the efferent vessels from the glomeruli open into the capillary network round the tubules. The whole of the tubule receives blood from each of these two sources, so that the capillary network around the tubules can be fully injected either from the renal arteries or from the renal portal veins. Taking advantage of this fact it has been shown by Beddard and one of us (F. A. B.) that after complete occlusion of the glomeruli the tubules, when adequately supplied with oxygen, maintain their normal histological appearance, and may secrete urine. In the present experiments an attempt has been made to determine the function of the glomerulus and to ascertain whether the tubules possess the capacity to absorb water and solids.

The unreliability of mammalian glomerular markers in teleostean renal studies

1976 ◽  
Vol 64 (2) ◽  
pp. 369-378 ◽  
Author(s):  
K. W. Beyenbach ◽  
L. B. Kirschner
Keyword(s):  
Polyethylene Glycol ◽  
Urinary Bladder ◽  
Glomerular Filtration ◽  
Sea Water ◽  
The Other ◽  
Salmo Gairdneri ◽  
Renal Tubules ◽  
True Measure

1. The assumption that (3H) methoxy inulin, (14C) polyethylene glycol (PEG) and (125) iothalamate (glofil) are reliable volume and glomerular markers in teleosts was tested. 2. PEG occupied smaller volumes than inulin and glofil in sea-water-adapted Salmo gairdneri. Ureteral clearances of PEG were about 22% higher than those of inulin and glofil, and urine-to-plasma ratios were significantly greater for PEG than for the other two markers. 3. After introduction into the urinary bladder the three macro-molecules appeared in the plasma, PEG at the lowest rates. 4. These observations indicate that mammalian glomerular markers can penetrate the bladder and possibly the ureters and renal tubules. Therefore, their clearances may not give a true measure of glomerular filtration rates in teleosts.

scholarly journals Comparing climate change indices between a northern (arid) and a southern (humid) basin in Mexico during the last decades

2018 ◽  
Vol 15 ◽  
pp. 231-237 ◽  
Author(s):  
Martín José Montero-Martínez ◽  
Julio Sergio Santana-Sepúlveda ◽  
Naydú Isabel Pérez-Ortiz ◽  
Óscar Pita-Díaz ◽  
Salvador Castillo-Liñan
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Arid Region ◽  
Climate Changes ◽  
Previous Analysis ◽  
Environmental Issues ◽  
The Other ◽  
The World ◽  
Humid Area ◽  
Different Parts

Abstract. It is a matter of current study to determine potential climate changes in different parts of the world, especially in regions like a basin which has the potential to affect socioeconomic and environmental issues in a defined area. This study provides a comparison between several climate change indices trends of two very different basins in Mexico, one located in the northern arid region (the Conchos River basin) and the other in the southern humid area (the Usumacinta River basin). First, quality control, homogenization, and completion of the missing data were applied before calculating the climate change indices and their respective trends for the combined period 1961–1994. A clear warming signal was found for the two basins in addition to an increment in the DTR, in agreement with other studies in Mexico. Also, the Conchos River basin was found to be more humid and the Usumacinta River basin drier, in accordance to a supposed seesaw behavior indicated in previous analysis.

scholarly journals Note: Recording of Some Beetles in Honey Bee Colonies

2018 ◽  
Vol 51 (2) ◽  
pp. 85-90 ◽  
Author(s):  
H.F. Abou-Shaara ◽  
M.E. Ahmad ◽  
J. Háva
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
The Other ◽  
Beetle Species ◽  
Large Numbers ◽  
The World ◽  
Bee Bread ◽  
Small Hive Beetles ◽  
Bee Colonies ◽  
Different Parts

Abstract Honey bees are very valuable to human. These social insects contribute in the pollination of many crops. Also, the products from honey bee colonies have many nutritional and medicinal benefits. Thus, keeping honey bees are very valuable and can be considered as source of income to many families. There are many diseases and pests that attack honey bee colonies. The pests attack bee colonies include: hornets, wax moths, bee-eater birds, and beetles. Such challenges can impact the survival and productivity of honey bee colonies. In this study, some beetle species belong to Fam. Nitidulidae, Dermestidae and Mycetophagidae were detected in honey bee colonies in Egypt, during spring. Despite the presence of many beetle species in the agricultural environment, only few species preferred the invasion of the colonies for feeding. These beetles do not attack stages of honey bees. They only feed on stored pollen or bee bread, especially those fallen on the bottom of the beehives. This is an alarm to follow the feeding behavior and distribution of these beetles. These beetles’ species can be considered as potential pests to weak honey bee colonies, housed in old or damaged beehives. The presence of large numbers of these beetles in weak colonies may disturb the activities of the bees and may passively impact the survival of the colonies. Listing these beetles is very important to better understanding the interaction between honey bees and beetles. On the other side, small hive beetles were not detected in the colonies. These beetles are currently one of the major problems facing honey bees in different parts of the world. This study confirms the absence of small hive beetles from Egypt.

scholarly journals POTTERY WORKSHOP OF MYKILSKA SLOBIDKA VILLAGE IN THE FIRST HALF OF THE 19th CENTURY (based on the latest archaeological excavations)

2018 ◽  
Vol 29 (4) ◽  
pp. 413-422
Author(s):  
A. M. Olenich ◽  
A. M. Olenich
Keyword(s):  
Urban Development ◽  
19Th Century ◽  
The Other ◽  
Cultural Layer ◽  
Pottery Production ◽  
Clay Deposits ◽  
The 19Th Century ◽  
The Village ◽  
Archaeological Excavations ◽  
Different Parts

The paper introduces materials from the archaeological excavations on the territory of the village of the 16th—19th centuries Mykilska Slobidka. The village has not been subject to systemic archaeological excavations before. In 2016—2018 we carried out the investigating in different parts of the village. It was fixed that despite the modern urban development, the cultural layer was preserved in some parts of the village. Obtaining materials indicate the existence of pottery production there. The most interesting is the ceramic collection associated with the pottery complex of the beginning of the 19th century. The collection allows us to characterize the assortment of the pottery manufacturing in the Mykilska Slobidka village in the first half of the 19th century. Among the typical products of the workshops were pots decorated with white and red engobe painting, jugs, bowls, lids, mugs, flowerpots, bricks and probably tiles etc. It is interesting that there are no pottery clay deposits in the vicinity of the village. So it is possibly the clay was brought from other villages, may be on the other (right) bank of the Dnieper River.

scholarly journals Tularemia, Weather, and Rabbit Populations

1952 ◽  
Vol 25 (1-6) ◽  
pp. 351-382
Author(s):  
Ralph E. Yeatter ◽  
David H. Thompson
Keyword(s):  
Great Majority ◽  
The State ◽  
The Other ◽  
Risk Of Infection ◽  
Undue Risk ◽  
Different Parts

Tularemia, a disease of rabbits and hares (lagomorphs), rodents, and several other animals, is transmissible to man. In the period 1926- 1940. Illinois had more than 3,000 reported cases of human tularemia, about twice as many as any of the other states. The great majority of these Illinois cases were traceable to contact with cottontail rabbits. This paper deals with the relation of human tularemia in different parts of the state and in different years to weather, to the abundance of rabbits, and to some other aspects of its epidemiology. In analyzing the information on tularemia in Illinois, the writers have made an effort to determine the methods of management which would permit Illinois hunters to enjoy the sport of rabbit hunting without undue risk of infection.

scholarly journals Spiders of the Vine Plants in Southern Moravia

2015 ◽  
Vol 63 (5) ◽  
pp. 1471-1476
Author(s):  
Lucie Havlová ◽  
Vladimír Hula ◽  
Jana Niedobová
Keyword(s):  
Czech Republic ◽  
Soil Management ◽  
Common Species ◽  
Red List ◽  
The Other ◽  
Important Species ◽  
The Czech Republic ◽  
Spider Species ◽  
Southern Moravia ◽  
Different Parts

Araneofauna of vineyards is relatively known in Central Europe but we have a lack of knowledge about araneofauna which occur directly on the vine plants. Our investigation was focused on spiders which live on vine plants, especially on the vine plants trunks. We investigated spiders in six vineyards in southern Moravia (Šatov, Mikulov, Popice, Morkůvky, Nosislav and Blučina). Vineyards were under different soil management, traps were placed on different parts of particular locality (terraced and plain) and all localities were under integrated pest management. We employed two types of cardboard traps for spider collecting during whole vegetation season. Altogether, we collected 21 spider species which belong to seven families. The most important species was Marpissa nivoyi (Lucas, 1836), which is mentioned in the Red List as vulnerable (VU) and Sibianor tantulus (Simon, 1868) which had unknown distribution in the Czech Republic. The other very interesting result is that the most common species is myrmecomorph Synageles venator (Lucas, 1836), which is scarcely recorded in such huge numbers as we documented in our study.

Spanish-speaking Anarchists in the United States

2019 ◽  
pp. 86-102
Author(s):  
Susana Sueiro Seoane
Keyword(s):  
United States ◽  
New York ◽  
Latin American ◽  
York City ◽  
The United States ◽  
The Other ◽  
Spanish Speaking ◽  
The World ◽  
Latin American Countries ◽  
Different Parts

This chapter analyzes Cultura Obrera (Labor Culture), published in New York City from 1911 to 1927. Pedro Esteve, the primary editor, gave expression to his ideas in this newspaper and while it represented Spanish firemen and marine workers, it reported on many other workers’ struggles in different parts of the world, for example, supporting and collecting funds for the Mexican revolutionary brothers Flores Magón. This newspaper, as all the anarchist press, was part of a transnational network and had a circulation not only in many parts of the United States but also in Latin American countries, including Argentina and Cuba, as well as on the other side of the Atlantic, in Spain and various European countries.

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