112,516 research outputs found
Hospodárská a Zivnostensko Prumyslova Vystava Severnich a Severovychodnich Cech V Mlade Boleslave R. 1912
No full textHOSPODÁRSKÁ A ZIVNOSTENSKO PRUMYSLOVA VYSTAVA SEVERNICH A SEVEROVYCHODNICH CECH V MLADE BOLESLAVE R. 1912
Hospodárská a Zivnostensko Prumyslova Vystava Severnich a Severovychodnich Cech V Mlade Boleslave R. 1912 ( -
Language skills of the police
No full textTato bakalářská práce se zabývá hodnocením jazykové vybavenosti Policie ČR v okresech Český Krumlov a České Budějovice. V teoretické části se práce zaměřuje na obecnou charakteristiku policie a definici daného území, na kterém bude probíhat dotazníkové šetření v praktické části. V samotné praktické části byl sestaven dotaz-ník, který byl zaslán respondentům. Dále se tato část zaměřuje na samotné vyhodno-cení anonymního dotazníku a na základě toho dotazníku se výsledky porovnávají a vyhodnocují. Výstupem práce je zhodnocení jazykové vybavenosti Policie ČR a do-poručení pro policisty na vyšších pozicích, kteří mají za úkol vzdělávání policistů.This bachelor's thesis deals with the evaluation of the language skills of the Police of the Czech Republic in the districts of Český Krumlov and České Budějovice. In the theoretical part, the work focuses on the general characteristics of the police and the definition of the area in which the questionnaire survey will take place in the practical part. In the practical part itself, a questionnaire was compiled, which was sent to the respondents. Furthermore, this part focuses on the evaluation of the anonymous questionnaire and based on that questionnaire, the results are compared and evaluated. The output of the work is an evaluation of the language skills of the Police of the Czech Republic and recommendations for police officers in higher positions, whose task is to train police officers
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Revelation of Nano Topology in Cech Rough Closure Spaces
No full textThe concept of Cech closure space was initiated and developed by E. Cech in 1966. Henceforth many more research scholars set their minds in this theory and developed it to a new height. Pawlak.Z derived and gave shape to Rough set theory in terms of approximation using equivalence relation known as indiscernibility relation. Further Lellis Thivagar enhanced rough set theory into a topology, called Nano Topology, which has at most five elements in it and he also extended this into multi granular nano topology. The purpose of this paper is to derive Nano topology in terms of Cech rough closure operators. In addition to this, we also establish the continuous functions on Cech rough closure space and its properties. From these, we evolve a Cech nano topological space that satisfies the topological axioms on infinite universe
Bir disket yarıgrubun Stone-cech kompaklaştırılması
No full textBu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır.ÖZET Anahtar Kelimeler- yangrup, sağ topolojik yarıgrup, Stone-Cech kompaktlaştınlması, ultrafîltre. Bu tezde bir S yarıgrubunun Stone-Cech kompaktlaştınlması /İS yangrubu ele alındı. Birinci bölümde, konuyla ilgili temel tanım ve teoremler verildi. İkinci bölümde, ultrafıltrelerle ilgili bilgiler verildi. Ayrıca bu bölümde bir D diskret uzayının Stone- Cech kompaktlaştınlması JİD detaylı bir biçimde incelendi. Daha sonra fiD ile ilgili temel teoremler verildi. Üçüncü bölümde, bir S yangrubu ele almdı ve S nin Stone- Cech kompaktlaştınlması 0S nin de yarıgrup olduğu gösterildi. Aynca flS nin bir kompakt sağ topolojik yangrup olduğu gösterildi. Dördüncü bölümde, fiS nin cebirsel yapısıyla ilgili bir takım teoremler verildi. Son bölümde de, J3S nin bazı uygulamalanna yer verildi.STONE-CECH COMPACTIFICATION OF A DISCRET SEMIGROUP SUMMARY Keywords- semigroup, right topological semigroup, Stone-Cech compactification, ultrafilter. In this thesis, we studied Stone-Cech compactification of a discrete semigroup S. In the first chapter, some definitions and theorems concerning with the subject are given. In the second chapter some informations about ultrafilters on any set are given. Moreover, the Stone-Cech compactification J3D of any discrete space D is investigated in detail and related theorems associated to fiD are given. In the third chapter, we consider a discrete semigroup 5" and the Stone-Cech compactification J3S of S is shown to be a semigroup by extending the operation on 5" to pS. It is shown that PS is right topological semigroup. The fourth chapter is devoted to studying the algebraic structure of the semigroup PS briefly. In the last chapter, some applications of the semigroup PS are given. V
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Remarkable harvestmen from the Czech Republic
No full textThe fauna of harvestmen of the Czech Republic is relatively well-known (SILHAVY 1956, MARTENS 1978). Still, species new for the country have recently been found both in natural (KLlMES & BEZDECKA 1995) and synanthropic habitats (KLlMES 1995). Our knowledge of the distribution of most species is, however, far from complete. For several species, including ones found relatively frequently, only a few localities have been reported from the Czech Republic up to now. In this paper we present some interesting findings of harvestmen in Bohemia (western Czech Republic) and Moravia (eastern part) which may stimulate further faunistic research in the territory (fig. 1)
Fridericia crassiductata Dózsa-Farkas & Cech, 2006, sp.n.
No full textFridericia crassiductata sp.n. Type material deposited in the author’s (DózsaFarkas, K.) collection at the Department of Systematic Zoology and Ecology, Eötvös Loránd University, Budapest. Type locality: Zemplén Mountains, Hungary, Holotype: F. 14 (1967) Senyő–völgy, Zemplén Mountains, picked up from beech litter, 48 o 28 ’ 22 ” N, 21 o 25 ’ 59 ” E 214m, 20.04. 2004. coll. K. DózsaFarkas. Paratype: P. 81.1 (1968) Komlóska–völgy, Zemplén Mountains, 48 o 25 ’ 53 ”N, 21 o 27 ’ 30 ”E, 223m, purple moorgrass meadow, 28.05. 2003, one stained specimen coll. K. DózsaFarkas, M. Pobozsny, P. 81.2 (1969) Mlaka–rét, Zemplén Mountains, 48 o 24 ’04”N, 21 o 24 ’ 32 ”E, 497m, mixed hornbeambirches forest, 28.05. 2003, one stained specimen coll. K. DózsaFarkas, M. Pobozsny, P. 81.3 (1970) Senyő–völgy, Zemplén Mountains, 48 o 28 ’ 22 ” N, 21 o 25 ’ 59 ” E, 214m from beech litter, 20.04. 2004, three specimens, coll. K. DózsaFarkas, P. 81.4 (1971) Senyő–völgy, Zemplén Mountains, oak forest (Quercus cerris) 48 o 28 ’ 19 ”N, 21 o 25 ’ 58 ” E 217m, 20.04. 2004, three specimens, coll. K. Dózsa Farkas, P. 81.5 (1972) Mlaka–rét, Zemplén Mountains, beech forest 48 o 23 ’ 59 ”N 21 o 24 ’ 21 ”E 542m, 0 5.28. 2003, one praeclitellar half of body (the caudal part used of DNAbased examinations (in Table 1:No. 1) coll. K. DózsaFarkas, M. Pobozsny, P. 81.6 (1973) Bagolybérci gerinc, Zemplén Mountains, oak forest (Quercus petraea) 48 o 24 ’ 27 ’N 21 o 23 ’ 41 ”E 593m, 0 5.28. 2003, one specimen, coll. DózsaFarkas, M. Pobozsny. Etymology: ‘crassus’ (Lat.) = thick, ductus (Lat.) = duct, tube. Referring to the thick and long spermathecal ectal duct. Description Length 13–20 mm. Diameter 0.5–0.7 mm at VIII, and 0.6–0.8 mm at clitellum. Segment number (38) – 40 – 56. Chaetae (Fig. 1 A) a maximum of 10 per bundle, formula (Nielsen & Christensen 1959): 4,5,6,7 – 6,5, 4,(3,2): 7,8,9,10 – 8,7,6,5,4,(3,2). Outer chaetae much longer than inner, e.g. the outermost 76 – 85 μm long and the innermost 33–38 μm in a praeclitellar bundle, the outer 95–100 μm long and the inner 85–90 μm long at the caudal part of the body. Cutaneous glands: about 10 rows of brown reticulate cells per segment. The epidermis is often hard to see through, due to these brownpigmented cells on the anterior segments (Fig. 1 B). Body wall of medium thickness (about 38–47 μm) cuticle thin (3 μm). Head pore at 0/I, well visible (Fig. 1 C). Dorsal pores beginning from VII. Brain (Fig. 1 D) 1.2–1.5 times longer than wide (140–180 μm long) in the posterolateral regions one small aggregation of refractive globules on either side. Oesophageal appendage (peptonephridia) (Fig. 2 A) variable, proximally some short branches, the main tube extends to V with wide lumen, and 1–2 branches distally. Sometimes the proximal branches cannot be found. Pharyngeal glands (septal glands) all paired with ventral lobes (in VI distinctly largest often with posterior projection), dorsal connection absent. Nephridia 5 pairs from VI/VII – X/XI, postseptale 2,5times longer than the anteseptale, medial origin of efferent duct. Coelomocytes (Fig. 1 E): mucocytes type b (Möller 1971), small (20–24 – 32 μm) with refractile vesicle, often dark in transmitted light, lenticytes (length 5–11 μm) are scarce. Chylus cells not visible due to the dense dark chloragocytes. Dorsal blood vessel from (XV)–XVII–XVIII, blood colourless. Clitellum well developed, XII–XIII girdle shaped, hyalocytes and granulocytes arrangement reticulate (Fig 3). Seminal vesicle is very large, occupying 3–4 segments (VIII–XII). Sperm funnel (Fig. 4 A) 250–380 μm long and 140–160 μm wide, collar narrower than the funnel body. Spermatozoa about 264 μm long, head 95 μm. Male copulatory organ is 170–200 μm long, 80–140 μm wide and 80–120 μm high, the bursal slit (Fig. 4 B) is longitudinal with more transverse components. Three small subneural glands (Fig. 4 C) in the XIV–XV–XVI segment. The ectal duct of spermatheca (Fig. 2 B, 5 A) is very wide (35–48 μm) and long (580–640 μm), longer than the body diameter. The ectal duct canal is narrow (6–7 μm) throughout, and not widening proximally. Two (rarely three) large sessile eggshaped brown ectal glands (80–130 μm long, 60–75 μm wide) (Fig. 5 B, 5 C). The ampulla with a single ring of 9–10 large, sessile, globular diverticula (50–70 μm long), laterally compressed by each other, filled with sperm (Fig. 5 A). Proximal part of ampulla cylindrical with a wide lumen. There is a separate opening into oesophagus. Two to four mature eggs at a time. Distribution and habitat: Known only from the type locality (Zemplén Mountains [northeastern part of the Hungarian Central Mountains]), in beech, hornbeam and birch forest). Diagnosis The new species can be recognized by the following combination of characters: (1) the size of the body (1320 mm long, 0.5–0.7 mm wide, segment number (38)– 40–56); (2) the form of spermatheca, with 9–10 large, sessile, globular diverticula, long and thick ectal ducts, and two very large (80–130 μm long) eggshaped ectal glands; (3) maximum ten chaetae per bundle; (4) all pairs of pharyngeal glands with ventral lobes and the dorsal connection absent; (5) the clitellum is girdle shaped, hyalocytes and granulocytes arrangement reticulate; (6) seminal vesicle is large; (7) penial slit is longitudinal with more transverse components; and (9) three subneural glands in XIV–XVI. from F. ratzeli (Eisen, 1872) sensu Nielsen and Christensen, 1959 and F. eiseni Dózsa Farkas, 2005) in the following morphological properties: F. r a t z e l i (Eisen, 1872) sensu Nielsen and Christensen, 1959 has only small spermathecal ectal glands, the coelomocytes type are between type a and type c (while the new species has two large ectal glands and type b of coelomomucocytes with refractile vesicle). F. eiseni were found to have tiny spermathecal ectal gland(s), the ectal duct is far thinner (24–26 μm compared to 35–50 μm in F. crassiductata), the spermathecal diverticula is more or less the same shape in the new species, whereas the size of the diverticula of F. eiseni is variable and the two lateral ones are always larger. The shape of the spermatheca of F. crassiductata shows high morphological similarity with F. re g u l a r i s (Nielsen and Christensen, 1959), however, the ectal duct is far more slender and the ectal gland is absent or very small (see Schmelz, 2003, Fig. 61 A). Moreover, in the case of the latter species the oesophageal appendages are more coiled (type b) and the maximal chaetal number is four. Large Fridericia species with similar spermathecae (F. regularis Nielsen and Christensen, 1959, F. oconeensis Welch, 1914, F. firma Smith and Welch, 1913, F. agricola Moore, 1895) differ from the new species by the absence of the subneural gland(s). F. oconeensis differs from the new species by the thinner spermathecal duct and absent (or very small) ectal glands, furthermore, the small diameter of the spermathecal ampulla with diverticula (70 μm). Neither F. f i r m a, nor F. agilis Smith, 1895 and F. agricola possesses ectal glands of the spermatheca. In the case of F. agilis and all the four species mentioned above, the maximal number of chaetae does not reach 8 (it is 8–10 in the case of the new species). Finally, two other species described in Italy seem to be partly similar considering the spermatheca: F. gigantea Dequal, 1912 and F. florentina Dequal, 1914. F. gigantea is much larger (30–45 mm long, 90–95 segments). Also, F. florentina has more segments (85–90) and although it has two large spermathecal ectal glands, the spermathecal duct is short and the diverticula of the spermatheca are placed in two groups on the opposite sides of the ampulla.Published as part of Dózsa-Farkas, K. & Cech, G., 2006, Description of a new Fridericia species (Oligochaeta: Enchytraeidae) and its molecular comparison with two morphologically similar species by PCRRFLP, pp. 53-68 in Zootaxa 1310 on pages 57-60, DOI: 10.5281/zenodo.17385
Analytical methods for the study of bioactive compounds from medicinally used Echinacea species
No full textEchinacea purpurea (L.) Moench, Echinacea angustifolia DC. var. angustifolia and Echinacea pallida (Nutt.) Nutt. are frequently used as medicinal plants and their preparations are among the most widely used herbal medicines. The extracts from these species have shown a highly complex chemical composition, including polar compounds (caffeic acid derivatives, CADs), non-polar compounds (alkylamides and acetylenic secondary metabolites; essential oil) and high molecular weight constituents (polysaccharides and glycoproteins). All these chemical classes of compounds have demonstrated to possess interesting biological activities. In the light of all the above, this paper is focused on the analytical techniques, including sample preparation tools and chromatographic procedures, for the chemical analysis of bioactive compounds in medicinally used Echinacea species. Since sample preparation is considered to be a crucial step in the development of analytical methods for the determination of constituents present in herbal preparations, the strength and weakness of different extraction techniques are discussed. As regards the analysis of compounds present in Echinacea plant material and derivatives, the application of different techniques, mainly HPLC, HPLC-ESI-MS, HPLC-ESI-MS/MS, HPCE, HPTLC and GC, is discussed in detail. The strength, weakness and applicability of the different separation tools are stated.Echinacea purpurea (L.) Moench, Echinacea angustifolia DC. var. angustifolia and Echinacea pallida (Nutt.) Nutt. are frequently used as medicinal plants and their preparations are among the most widely used herbal medicines. The extracts from these species have shown a highly complex chemical composition, including polar compounds (caffeic acid derivatives, CADs), non-polar compounds (alkylamides and acetylenic secondary metabolites; essential oil) and high molecular weight constituents (polysaccharides and glycoproteins). All these chemical classes of compounds have demonstrated to possess interesting biological activities. In the light of all the above, this paper is focused on the analytical techniques, including sample preparation tools and chromatographic procedures, for the chemical analysis of bioactive compounds in medicinally used Echinacea species. Since sample preparation is considered to be a crucial step in the development of analytical methods for the determination of constituents present in herbal preparations, the strength and weakness of different extraction techniques are discussed. As regards the analysis of compounds present in Echinacea plant material and derivatives, the application of different techniques, mainly HPLC, HPLC-ESI-MS, HPLC-ESI-MS/MS, HPCE, HPTLC and GC, is discussed in detail. The strength, weakness and applicability of the different separation tools are stated
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