scholarly journals IV. On peristaltic induction of electric currents

1857 ◽  
Vol 8 ◽  
pp. 121-132 ◽  
Keyword(s):  
Hydrostatic Pressure ◽  
The Other ◽  
Electric Currents ◽  
Elastic Tubes ◽  
Electrical Equilibrium ◽  
Different Parts ◽  
Peristaltic Action

Recent observations on the propagation of electricity through wires in subaqueous and subterranean telegraphic cables have brought to light phenomena of induced electric currents, which, while they are essentially different from the phenomena of what has hitherto been called electro-dynamic induction, are exactly such as might have been anticipated from the well-established theory of electrical equilibrium, had experiment afforded the data of relation between electrostatical and electro-dynamic units wanted for determining what dimensions of wire would be required to render these phenomena sensible to ordinary observation. They present a very perfect analogy with the mutual influences of a number of elastic tubes bound together laterally throughout their lengths, and surrounded and filled with a liquid which is forced through one or more of them, while the others are left with their ends open ( uninsulated ), or stopped ( insulated ), or subjected to any other particular conditions. The hydrostatic pressure applied to force the liquid through any of the tubes will cause them to swell and to press against the others, which will thus, by peristaltic action, compel the liquid contained in them to move, in different parts of them, in one direction or the other.

scholarly journals 1. Experiments on the electric conditions of the rocks and metalliferous veins (Lodes) of Longclose and Rosewall Hill mines in Cornwall

1843 ◽  
Vol 4 ◽  
pp. 317-317
Keyword(s):  
The Other ◽  
Electric Currents ◽  
Sheet Copper ◽  
The One ◽  
Different Parts

The experiments, of which the results are given in this paper, were undertaken with the view of determining whether it was in conse­quence of the imperfections of the galvanometers, or other apparatus, employed, that Mr. R. W. Fox, and other experimenters, had been unable to detect the presence of electricity in the tin veins of Corn­wall. The mode of experimenting was in principle the same as that pursued by Mr. Fox, namely, that of placing plates of metal in con­tact with the points to be examined, carrying wires from the one to the other, and interposing a galvanometer in the circuit. The plates employed were of sheet-copper and sheet-zinc, and they were about six inches long, and three inches and a half wide. The wires were of copper, one twentieth of an inch in diameter, and the same that had been used by Mr. Fox. The tabular results of these experiments show that both the gra­nite and the tin vein at Rosewall Hill mine, and also the greenstone and the copper vein in that of Longclose, present unequivocal traces of electric currents, whether different parts of the same veins or va­rious portions of the same rocks were examined.

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 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.

Implementation

The Age of Em ◽  
2016 ◽  
Author(s):  
Robin Hanson
Keyword(s):  
Statistical Analysis ◽  
Facial Expressions ◽  
Internal State ◽  
The Other ◽  
Subjective Time ◽  
Brain States ◽  
Tone Of Voice ◽  
Different Parts ◽  
Average State ◽  
Complete Match

Compared with ordinary humans, it is much easier to directly read the internal state of an em mind. This should allow some types of “mindreading.” Consider taking two ems and trying to match parts in one of them to parts in the other, to say which parts are the “same.” during the early opaque em era it will usually not be possible to make a complete match. Even so, some parts could be matched, such as the parts that receive initial inputs from eyes and ears. For matched parts, it should be possible to put the parts of one emulation into the same brain activation state as that of the matching parts in another emulation. So, for example, one might force an emulation to see and hear exactly what another emulation sees and hears. More parts can be matched for emulations of the same original human, especially if they have diverged for a shorter subjective time. Such more closely matched emulations could thus be arranged to more fully “read” each other’s minds. Mild mindreading might be used to allow ems to better intuit and share their reaction to a particular topic or person. For example, a group of ems might all try to think at the same time about a particular person, say “George.” Then their brain states in the region of their minds associated with this thought might be weakly driven toward the average state of this group. In this way this group might come to intuitively feel how the group feels on average about George. Of course this should work better for closer copies, and after this exercise participating individuals might still return to something close to their previous opinions of George. Even when minds cannot be matched part for part, statistical analysis of how activation in different parts and situations correlates with actions and stated feelings should allow cheap partial mindreading, at least for some shallow “surface” aspects of emulation minds. Both of these types of mindreading require access to the internal state of an emulation process. Those not granted such access have an even weaker ability to read minds than do humans today. Today, humans routinely leak many features of their brain states via tone of voice, gaze, facial expressions, muscle vibrations, etc.

scholarly journals Application of synchrotron radiation X-ray fluorescence to investigate the distribution of mineral elements in different organs of greenhouse spinach

2009 ◽  
Vol 36 (No. 4) ◽  
pp. 133-139 ◽  
Author(s):  
S.Z. Xin ◽  
Y.J. Song ◽  
C. Lv ◽  
Y.K. Rui ◽  
F.S. Zhang ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Mineral Elements ◽  
The Body ◽  
The Other ◽  
X Ray ◽  
Root Apices ◽  
Different Parts

Consumption of vegetables is one of the most important ways of providing the body with mineral elements. However, it is not clear how mineral elements are distributed in different organs of vegetables, especially vegetables grown in greenhouses. The distribution of mineral elements in the root and leaves of greenhouse spinach was determined using synchrotron radiation XRF, the results indicated that the amount of various elements in different parts of the leaves, roots and stems were inequable. Generally, the content of the elements in the root base were slightly higher than in the other parts. The amounts in the root apices were much lower than those in the other parts while the amount of every element decreased gradually from the root base to the root apices. In stems, the amount of K, Ca, Fe, Ni, and Zn were higher in the base of the stem than in the top of stem while the amounts of Co and Cu were higher in the top of the stem than in the base of stem. From all the elements detected in the stem, Mn was at the lowest concentration. In leaves, Co and Zn were primarily accumulated around the main veins and the amount of Mn in the tip of the leaf was higher than in the other parts. In contrast, K, Ca, Ni, and Cu were higher in the center of the leaf.

Sign in / Sign up

Export Citation Format

Share Document