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  • Articles  (93)
  • 2015-2019  (75)
  • 1985-1989  (18)
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  • 1
    Publication Date: 2016-07-23
    Description: An aquatic gastropod belonging to the family Neritidae, Clithon retropictus is listed as an endangered class II species in South Korea. The lack of information on its genomic background limits the ability to obtain functional data resources and inhibits informed conservation planning for this species. In the present study, the transcriptomic sequencing and de novo assembly of C. retropictus generated a total of 241,696,750 high-quality reads. These assembled to 282,838 unigenes with mean and N50 lengths of 736.9 and 1201 base pairs, respectively. Of these, 125,616 unigenes were subjected to annotation analysis with known proteins in Protostome DB, COG, GO, and KEGG protein databases (BLASTX; E ≤ 0.00001) and with known nucleotides in the Unigene database (BLASTN; E ≤ 0.00001). The GO analysis indicated that cellular process, cell, and catalytic activity are the predominant GO terms in the biological process, cellular component, and molecular function categories, respectively. In addition, 2093 unigenes were distributed in 107 different KEGG pathways. Furthermore, 49,280 simple sequence repeats were identified in the unigenes (>1 kilobase sequences). This is the first report on the identification of transcriptomic and microsatellite resources for C. retropictus, which opens up the possibility of exploring traits related to the adaptation and acclimatization of this species.
    Electronic ISSN: 2073-4425
    Topics: Biology
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  • 2
    Publication Date: 2021-05-19
    Description: During the decade 1991-2001, culture of Indian White Shrimp grew rapidly in Iran due to high profitability, but afterwards suffered a decreasing trend with many farms still being idle after Construction. The trend occurred mainly due to (1) increase in production costs with simultaneous decrease in international shrimp market price, (2) Agro-climatic conditions that favored only one crop a year, which is not profitable, and (3) fear about spread of disease as already experienced in the case of white spot disease in Khouzestan and Bushehr provinces. Based on these facts, we aimed in our study to increase production of the shrimp per year, to reduce days of culture (DOC) in second crop through nursery system, to control food conversion ratio (FCR), and to manage shrimp production in Gwatar shrimp farming complex. Six farms were selected, and in three we applied two crops a year production system using nursery for the second crop. In other three farms one crop was harvested. Shrimps in two-crop farms were kept 52 days of the second crop in nursery and then transferred to grow-out ponds. All farms harvested before DOC 128. Mean productions per hectare in the first and second crop were 1794 and 1691kg, respectively. The FCR dropped from 1.6 in the first to 1.27 in the second crop. Total production per hectare per year reached 3485kg in two-crop farms. Shrimps in one-crop farms were harvested mainly at DOC 145. The mean production per ha/year and FCR of one-crop farms reached 2089kg and 1.65 respectively. We harvested around 47114kg of shrimps in each two-crop farm which was 17 tons more than one-crop farms. The results of this study showed that production of shrimps in two crops a year system could be continued with pre-designed schedules. We presented a time table for two crops a year culture system.
    Description: Published
    Keywords: Shrimp Farming ; Indian White Shrimp ; Fenerropenaeus indicus
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.139-148
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  • 3
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Rutherford backscattering spectrometry combined to the 16O(α, α) nuclear resonance (E=3.045 MeV) are used to determine the stoichiometry of Y-Ba-Cu-O superconducting samples. The oxygen depth profile is also measured at thin surface layers of the compound.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Chemistry of materials 1 (1989), S. 220-225 
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0789
    Keywords: Spatial nitrogen distribution ; Prilled urea ; Urea supergranules ; Neem cake coated urea ; Submerged rice soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field experiments were conducted on transplanted rice (Oryza sativa L., var. Ratna) in a submerged soil, in order to study the distribution of N applied at 100 kg/ha. N was introduced as prilled urea or neem cake coated urea broadcast on the soil, and as urea supergranules, 1 or 2.5 g in size, point-placed at 5 cm depth. The surface-broadcast N was found mostly in the top 0–5 cm layer of soil and there was only a small vertical movement of applied N to 5–10 cm depth. With point placement of 1-g urea granules, the fertilizer N was found mostly at 5–10 cm depth and within 2.5 cm horizontal distance from the point of placement, compared with 5–10 cm depth and within 5 cm horizontal distance from the point of placement for the 2.5-g granules. With the two broadcast applications, the NH4 +-N content reached peaks of 40–68 mg/kg soil in the top 0–5 cm of soil within the first 3–6 days, decreased at a faster rate from the 6th to 12th day and then at a slower rate up to the 32nd day. In contrast, the NH4 +-N content around the points of placement of the urea supergranules reached peaks of 570–900 mg/kg soil during the first 3–12 days after placement, then decreased rapidly during the next 6–9 days, after which the values remained more or less unchanged but were still higher than the untreated control value.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 332 (1988), S. 136-137 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Observations were carried out for about 8 h on each of three days between 6 May and 21 May 1985. A new antenna was later added to the OSRT to provide the short spacings needed for mapping large angular size structures. New observations were carried out in April 1987. The shortest spacing in ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 313 (1985), S. 113-115 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] G349.7 + 0.2 is the third brightest galactic SNR, after Cas A and the Crab Nebula. No previous radio map was of sufficient resolution to reveal its structure, the SNR classification resting on a non-thermal spectrum and an Hi absorption distance of 18.3 ± 4.6 kpc5. No optical counterpart has ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 35 (1989), S. 2153-2159 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Im Temperaturbereich von 653–683 K wurde der Einfluß von Beimengen von Kaliumbromid (2,5% und 5%) auf die thermische Zersetzung von Kaliumbromat untersucht. Die Funktion der zersetzten Menge (α) in Abhängigkeit von der Zeit (t) weist eine anfängliche Gasentwicklung(i), eine beschleunigte(ii) und eine abklingende Stufe(iii) auf. Die Daten wurden auf der Grundlage einer Kinetik erster Ordnung mit den zwei Geschwindigkeitskonstantenk 1 undk 2 durchgeführt, wobeik 1 die Geschwindigkeitskonstante für den einleitenden, langsameren Schritt erster Ordnung ist (0,02, 0,26) undk 2 die Geschwindigkeitskonstante für den darauffolgenden schnelleren Vorgang mit Werten zwischen 0,21 und 0,98. Bei Erhöhung der Konzentration von Kaliumbromid auf 5% betrug der Bereich für den langsameren und den schnelleren Vorgang 0,01 bis 0,16 bzw. 0,10 bis 0,98. Bei gegebener Temperatur steigtk 1 mit zunehmender Kaliumbromidkonzentration an, währendk 2 für reines Kaliumbromat und seine Mischungen mit 2,5% und 5% Kaliumbromid fast identisch bleibt.
    Abstract: Резюме В температурном инте рвале 653–683 К изучено влияние добавок бром ида калия (2,5 и 5%) на термическое разло жение бромата калия. Температурные завис имости степени разло жения показали стадии перв оначального выделен ия газа, ускорения и затухани я реакции. Анализ полученных да нных проведен на осно ве реакции первого порядка с дву мя константами скоростиk 1 иk 2, где пер вая является констан той скорости начального медленного процесса первого порядка (со зн ачениями от 0,02 до 0,26), а вторая-константой ск орости последующего быстрого процесса со значениями в интерва ле 0,21–0,98. При увеличении концентр ации бромида калия до 5% интервал зна ченийk 1 иk 2 становитс я равным, соответствен но, 0,01–0,16 и 0,1–0,98. При данной температу реk 1, увеличивается с увеличением концент рации бромида калия, т огда какk 2 почти одинакова как для чистого брома та калия, так и его смесей (2,5 и 5%) с бр омидом калия.
    Notes: Abstract The effects of admixtures of potassium bromide (2.5% and 5%) on the thermal decomposition of potassium bromate were studied within the temperature range 653–683 K. The fraction decomposed(α) vs. time (t) relations revealed (i) initial gas evolution, (ii) acceleratory and (iii) decay steps. The data were analysed on the basis of the first-order law with two rate constantsk 1 andk 2,k 1 being the rate constant for the initial, slow first-order process (0.02, 0.26), andk 2 being the rate constant for the subsequent faster process, holding within the range 0.21 to 0.98. Upon increase of the concentration of added potassium bromide to 5%, the range for the slow and faster processes became 0.01 to 0.16 and 0.1 to 0.98, respectively. At a given temperature,k 1 increased with increasing bromide concentration, whereask 2 almost identical for pure potassium bromate and its mixtures (2.5% and 5% bromide).
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Tropical animal health and production 18 (1986), S. 137-138 
    ISSN: 1573-7438
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 27 (1985), S. 135-144 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: PCILO computations have been carried out on the conformation of p-dimethylaminobenzylidene-p-nitroaniline [I(m)], p-nitrobenzylidene-p-dimethylaminoaniline [I(n)] and the corresponding stilbene [II(a)] and azobenzene [II(b)] derivatives. The aniline rings in Im and In are found to be twisted out of the plane containing the central atoms by 60° and 30°, respectively. The two phenyl rings in case of II(a) are twisted out of plane in opposite directions by 30° each. II(b) was found to be planar. The results have been compared with the earlier experimental findings and used as a possible explanation for the visible absorption spectra of the four molecules.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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