1,457 research outputs found
p-Adic and Adelic Generalization of Quantum Cosmology
p-Adic and adelic generalization of ordinary quantum cosmology is considered.
In [1], we have calculated p-adic wave functions for some minisuperspace
cosmological models according to the "no-boundary" Hartle-Hawking proposal. In
this article, applying p-adic and adelic quantum mechanics, we show existence
of the corresponding vacuum eigenstates. Adelic wave function contains some
information on discrete structure of space-time at the Planck scale.Comment: 12 page
Aluminium(Ill) and Gallium(III) Tris-f-Nitroacetylacetonates. Preparation and Infrared Spectra
Aluminium(III) and gallium(III) derivatives of y-nitro-2,4-
-pentanedione have bee n prepared by electrophilic substitution of
the hydrogen on the chelated acetylacetone molecule. Infrared
spectra of these new metal complexes have been studied. On
comparison with the spectra of analogous derivatives of some
divalent metals and spectra of aluminium(III) and gallium(III)
tris-acetylacetonates the assignment of some characteristical
vibrational frequencies is given. Additional modes of the nitrogroup
and the metal-oxygen vibrational modes are discussed in
more details
Uticaj nivoa proteina u obroku na proizvodne rezultate i mortalitet fazanÄiÄa gajenih u kontrolisanim uslovima
The effects of different levels of dietary protein content and population density in growing pheasants, up to the age of 42 days, on production results and mortality have been studied in this paper. The experiment was set as a two factorial study (2 x 2). Factor A was the influence of crude proteins in the diet (A1 = 26% up to 4 weeks of age and 20% from 4 up to 6 weeks of age; A2 = 30% crude proteins up to 4 weeks of age and 24% from 4 up to 6 weeks of age). Factor B was the population density (B1 = 450 and B2 = 550 birds/group). The total number of birds in the trial was n= 2000. Body mass was measured at hatching, 15 and 42 days of age. Up to 15 days of age the pheasants were housed in cages, but thereon they were reared under floor conditions with free access to outdoors. The highest body mass measured at 42 days of age (457.07 g) and the utmost daily body mass increase (4.22 for the first period of growth and 13.31 for the second) was achieved by the pheasants which were fed a diet with the highest protein content (30% in the first stage and 24% in the second) and reared at a lower population density (450 birds/group). These differences were significant (p lt 0.01). On comparison with the available literature data the mortality was at a satisfactory level (1.27 - 3.00%) and was not influenced by the studied factors. The mortality values were numerically higher for all treatments for the period up to 15 days (0.73 - 2.70%) compared to the period from 15 up to 42 days of age (0.44-1.00%). Based upon the obtained results and the previously published literature data it can be concluded that feedstuff protein content is the key factor required in order to obtain satisfactory final body weight and subsequently good quality material for the repopulation of hunting grounds.U eksperimentu je ispitivan uticaj nivoa proteina u obroku i gustine naseljenosti fazanÄiÄa u odgajivaliÅ”tima, do 42. dana starosti, na proizvodne rezultate i procenat mortaliteta. Eksperiment je postavljen kao dvofaktorijalni ogled (2x2), gde je faktor A bio procenat sirovih proteina u obroku (A1 = 26% do kraja 4. nedelje i 20% od kraja 4. do kraja 6. nedelje života; A2=30% do kraja 4. nedelje i 24% od kraja 4. do kraja 6. nedelje) a faktor B gustina naseljenosti (B1=450 i B2=550 jedinki po grupi). Ukupan broj životinja u eksperimentu je bio 2000. Merenje mase fazanÄiÄa vrÅ”eno je odmah po roÄenju, 15. i 42. dana života. Do 15. dana života fazanÄiÄi su držani u kavezima a u drugoj fazi gajenja u podnom sistemu sa ispustima. NajveÄu telesnu masu izmerenu 42. dana starosti (457,07 g) i najveÄi dnevni prirast (4,22 g za prvi period odgajivanja i 13,31 g za drugi period) ostvarili su fazanÄiÄi koji su hranjeni smeÅ”om sa veÄim nivoom proteina (30% u prvoj fazi odnosno 24% u drugoj fazi), kao i pri manjoj gustini naseljenosti (450 jedinki po grupi). Ove razlike su bile signifikantne (p lt 0,01). U poreÄenju sa drugim literaturnim podacima, mortalitet fazanÄiÄa je bio zadovoljavajuÄi (1,27-3,00%) i nije bio pod uticajem ispitivanih faktora. Vrednosti mortaliteta su bile numeriÄki veÄe u svim tretmanima za period odgajivanja do 15. dana (0,73-2,7%) u odnosu na period od 15. do 42. dana (0,44-1%). S obzirom na rezultate iz ovog eksperimenta kao i na brojne literaturne podatke, može se zakljuÄiti da je odgovarajuÄi nivo proteina u smeÅ”i za odgoj fazanskih piliÄa kljuÄni faktor za postizanje visokih zavrÅ”nih masa, a samim tim i za dobijanje kvalitetnog materijala kojim Äe se naseljavati loviÅ”ta
On a Mercuric Oxyfluoride
Properties, preparation and analysis of a crystalline oxyfluoride defined by the formula HgF(OH) are described. Crystallographic and X-ray investigations have shown that the crystals are orthorhombic with the space group D13/2h or D 3/2. The unit cell, which has the dimensions: a = 4.93 A b = 5.95 A c = 6.86 A contains six stoichiometric units HgF(OH
Sadržaj mobilnog nikla u kreÄnjaÄkim crnicama Rajca
A description of mobile Ni contents in various subtypes of calcareous black soils from the area of the mountain massif of Rajac, is given in the present paper. A hundred soil samples were analysed in all, originating from four subtypes of calcareous black soil (organogenic, organo-mineral, brownized and loessivized black soils). The extraction of mobile Ni was carried out with 1.0 N HCl and its content was determined by atomic absorption spectrophotometry. The obtained results indicate that mobile Ni content in the investigated soils varies within a wide range, from 5.0 to 251.3 mg/kg that it is very seldom (only in 3% of the investigated samples) within the range from 5 to 7 mg/kg, that in over 90% of the 100 investigated samples it is higher than 10 mg/kg, and in almost 3/5 of the samples it is higher than 20 mg/kg. Calcareous black soils of Rajac massif have much higher mobile Ni content than previously investigated black soils from calcareous massif of Rtanj, which is, by all means, only partly due to their more severe dealkalization and acidification. In addition, here is undoubtedly apparent the influence of the geological substrate, i.e. of serpentine rocks that border the calcareous massif of Rajac.U radu je prikazan sadržaj mobilnog Ni u razliÄitim podtipovima kreÄnjaÄke crnice iz podruÄja planinskog masiva Rajac. Analizirano je ukupno 100 uzoraka zemljiÅ”ta iz Äetiri podtipa kreÄnjaÄke crnice (organogena, organo mineralna, braunizirana i lesivirana crnica). Ekstrakcija mobilnog Ni je vrÅ”ena sa 1.0 n HCl, a njegov sadržaj je odredjen atomskom apsorpcionom spektrofotometrijom. Rezultati analiza pokazali su da sadržaj mobilnog Ni u ispitanim zemljiÅ”tima varira u Å”irokom intervalu, od 5.0 - 251.3 mg/kg veoma retko (samo u 3% ispitanih uzoraka) u intervalu od 5 - 7 mg/kg, zatim da je u preko 90% od 100 izuÄenih uzoraka viÅ”i od 10 mg/kg, a skoro u 3/5 uzoraka viÅ”i od 20 mg/kg. U pogledu rasporeda sadržaja mobilnog Ni u raznim podtipovima kreÄnjaÄke crnice Rajca, najbogatija je organogena crnica (prosek 36.7 mg/kg), organo - mineralne i braunizirane crnice pokazuju znatno niže i to bliske proseÄne vrednosti (24 - 26 mg/kg), dok su lesivirane crnice znatno siromaÅ”nije nego prethodni podtipovi (prosek 13.9 mg/kg) tog zemljiÅ”ta. KreÄnjaÄke crnice masiva Rajca su mnogo bogatije mobilnim Ni nego ranije ispitivane crnice kreÄnjaÄkog masiva Rtanj, Å”to je svakako, samo delom posledica njihove jaÄe dealkalizacije i acidifikacije ali je pored toga, nesumnjivo, doÅ”ao do izražaja i uticaj geoloÅ”kog supstrata, odnosno serpentinitskih stena s kojima se graniÄi kreÄnjaÄki masiv Rajca
Aluminium(Ill) and Gallium(III) Tris-f-Nitroacetylacetonates. Preparation and Infrared Spectra
Aluminium(III) and gallium(III) derivatives of y-nitro-2,4-
-pentanedione have bee n prepared by electrophilic substitution of
the hydrogen on the chelated acetylacetone molecule. Infrared
spectra of these new metal complexes have been studied. On
comparison with the spectra of analogous derivatives of some
divalent metals and spectra of aluminium(III) and gallium(III)
tris-acetylacetonates the assignment of some characteristical
vibrational frequencies is given. Additional modes of the nitrogroup
and the metal-oxygen vibrational modes are discussed in
more details
Proizvodni rezultati razliÄitih kategorija fazana gajenih u kontrolisanim uslovima
The overview of domestic and foreign investigations of the effects of various intensity of ant feeding technique in various categories of pheasants. With the aim to increase number of pheasants in our country and in the world, for decades pheasant chicks are produced in pheasant farms up to the age of 5-8 weeks, and body mass of 400-450 g, after which they are released into the hunting grounds. The capacity of pheasant farms in Serbia is about 900.500 hatched chicks, and in the past four decades several tens of millions of artificially reared pheasants were released. The quality of feeding the brood stock of pheasants, which produce eggs for hatching incubator has a direct influence on number, mass and fertility of eggs, and on the mass of newly hatched chicks. The feed conversion ratio in chicks depends on the first place on energy and protein level, and also on biological value of protein. In domestic investigations of pheasant chicks feeding with the concentrate mixture with higher protein value (30% to 28 days of age and 24% to 42 days of age) and with lower stocking density (450 individuals in the group), had significantly bigger Final body mass (457.07 g) and higher daily gain (4.22 g in the first 13:31 and g in the second period), and with better feed conversion ratio.U radu je dat pregled domaÄih i stranih istraživanja efekata razliÄitog intenziteta i tehnike ishrane na proizvodne rezultate razliÄitih kategorija fazana. U cilju poveÄanja broja fazana za odstrel u svetu i kod nas decenijama se gaje fazanÄiÄi u fazanerijama do starosti od 5-8 nedelja i telesne mase od 400-450 g a zatim se puÅ”taju u loviÅ”ta. Kapacitet fazanerija u Srbiji je oko 900.500 jednodnevnih fazanÄiÄa a za protekle Äetiri decenije u loviÅ”ta Srbije puÅ”teno je nekoliko desetina miliona veÅ”taÄki odgajenih fazana. Kvalitet ishrane matiÄnog jata fazana koji proizvode jaja za inkubatore direktno utiÄe na broj, masu i fertilitet jaja, kao i na masu fazanÄiÄa. Konverzija hrane kod fazanÄiÄa zavisi od nivoa energije i proteina, kao i od bioloÅ”ke vrednosti proteina, pre svega od sadržaja metionina i lizina. U domaÄim ispitivanjima ishrana fazanÄiÄa smeÅ”om koncentrata sa veÄim nivoom proteina (30% do 15. dana života i 24% do 42. dana) i pri manjoj gustini naseljenosti (450 jedinki u grupi) rezultovala je signifikantno veÄom zavrÅ”nom telesnom masom (457,07 g) i veÄim dnevnim prirastima (4,22 g za prvi period odgajivanja i 13,31 g za drugi period), kao i boljom konverzijom hrane
On a Mercuric Oxyfluoride
Properties, preparation and analysis of a crystalline oxyfluoride defined by the formula HgF(OH) are described. Crystallographic and X-ray investigations have shown that the crystals are orthorhombic with the space group D13/2h or D 3/2. The unit cell, which has the dimensions: a = 4.93 A b = 5.95 A c = 6.86 A contains six stoichiometric units HgF(OH
Invariance in adelic quantum mechanics
Adelic quantum mechanics is form invariant under an interchange of real and
p-adic number fields as well as rings of p-adic integers. We also show that in
adelic quantum mechanics Feynman's path integrals for quadratic actions with
rational coefficients are invariant under changes of their entries within
nonzero rational numbers.Comment: 6 page
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