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  • Jewish studies  (365)
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  • 1
    Online Resource
    Online Resource
    Supplemental Effects of AAMC, an Anionic Alkali Mineral Complex, in Diets for Pacific White Shrimp (Litopenaeus vannamei)
    SAABRON PRESS ; 2017
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 69 ( 2017-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 69 ( 2017-1-1)
    Abstract: A 6-week feeding trial was conducted to evaluate the effect of dietary supplementation of Anionic Alkali Mineral Complex (AAMC) on growth performance, feed utilization, innate immunity, and disease resistance of L. vannamei. Graded levels of AAMC solution were included in a basal diet; 0% (Control), 0.05%, 0.1%, 0.2% and 0.4%. Shrimp fed diets supplemented with 0.2% and 0.4% AAMC had the highest growth performance, and compared to the control treatment, final body weight and specific growth rates were significantly higher (P 〈 0.05). Feed utilization also improved significantly with AAMC supplementation. Non-specific immune responses of shrimp were significantly affected by dietary supplementation of AAMC; total hemocyte count of shrimp fed 0.1% and 0.2% diets was significantly higher the control diet shrimp group. Phenoloxidase and lysozyme activity was significantly higher in shrimp fed 0.2% diet compared to the control diet group. Glutathione peroxidase activity was significantly enhanced with dietary supplementation of 0.1%–0.2% AAMC. In a challenge test with Vibrio harveyi, shrimp fed 0.2% AAMC disease resistance was significantly higher than in shrimp fed the control diet. Overall, the results indicate that dietary supplement of AAMC improved growth, diet utilization, innate immunity, and disease resistance of Pacific white shrimp and approximately 0.2% in diets appeared to be the optimum supplemental level.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20862
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2017
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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  • 2
    Online Resource
    Online Resource
    Supplemental Effects of AAMC, an Anionic Alkali Mineral Complex, in Diets for Pacific White Shrimp (Litopenaeus vannamei)
    SAABRON PRESS ; 2017
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 69, No. 1 ( 2017-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 69, No. 1 ( 2017-1-1)
    Abstract: A 6-week feeding trial was conducted to evaluate the effect of dietary supplementation of Anionic Alkali Mineral Complex (AAMC) on growth performance, feed utilization, innate immunity, and disease resistance of L. vannamei. Graded levels of AAMC solution were included in a basal diet; 0% (Control), 0.05%, 0.1%, 0.2% and 0.4%. Shrimp fed diets supplemented with 0.2% and 0.4% AAMC had the highest growth performance, and compared to the control treatment, final body weight and specific growth rates were significantly higher (P 〈 0.05). Feed utilization also improved significantly with AAMC supplementation. Non-specific immune responses of shrimp were significantly affected by dietary supplementation of AAMC; total hemocyte count of shrimp fed 0.1% and 0.2% diets was significantly higher the control diet shrimp group. Phenoloxidase and lysozyme activity was significantly higher in shrimp fed 0.2% diet compared to the control diet group. Glutathione peroxidase activity was significantly enhanced with dietary supplementation of 0.1%–0.2% AAMC. In a challenge test with Vibrio harveyi, shrimp fed 0.2% AAMC disease resistance was significantly higher than in shrimp fed the control diet. Overall, the results indicate that dietary supplement of AAMC improved growth, diet utilization, innate immunity, and disease resistance of Pacific white shrimp and approximately 0.2% in diets appeared to be the optimum supplemental level.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.21032
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2017
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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  • 3
    Online Resource
    Online Resource
    Effects of Photoperiod, Water temperature, and Exogenous Hormones on Spawning and Plasma gonadal Steroid in Starry Flounder, Platichthys stellatus
    SAABRON PRESS ; 2021
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 73 ( 2021-9-24)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 73 ( 2021-9-24)
    Abstract: The sexual maturation and spawning of teleosts are regulated by the external environment and the endocrine system. When the environmental conditions are artificially adjusted at a fish farm, the maturity and spawning of fish can be controlled. In this study, sexual maturation and spawning of the starry flounder, Platichthys stellatus, were artificially induced by adjusting the water temperature and photoperiod at a fish farm to accelerate the species’ natural spawning period. One experimental group acted as a control and was exposed to a natural photoperiod and natural water temperature (NPNT). In contrast, another experimental group was exposed to an adjusted environment consisting of a regulated photoperiod and temperature (RPRT). Daylight time was reduced by 10 minutes every 3 days from 13 hours to a duration of 8 hours. The water temperature was first reduced by 1oC every day, starting at 22oC and ending at 8oC, and then raised to 10oC until the spawning period. Both experimental groups were treated with gonadotropin-releasing hormone analog (GnRHa) pellets to induce ovulation. The results show that when the water temperature and photoperiod were artificially controlled, ovulation could be induced 97 days earlier than the natural spawning. Plasma testosterone levels of RPRT and NPNT tended to increase and then decrease 1–2 months before spawning, and plasma levels of 17α,20β-dihydroxy-4-pregnen-3-one increased 1–2 months before spawning. The concentration of estradiol-17β (E2) in plasma was not associated with spawning.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.28425
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2021
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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  • 4
    Online Resource
    Online Resource
    Optimal Dose of Total Residual Oxidants for Hybrid Tilapia (Oreochromis mossambicus x O. niloticus) and Whiteleg Shrimp (Litopenaeus vannamei) in Ozone-Treated Sea Water
    SAABRON PRESS ; 2009
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 61 ( 2009-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 61 ( 2009-1-1)
    Abstract: The purpose of this study was to use total residual oxidants (TRO) as an indicator for determining the optimal ozone dosage needed to control water quality and thereby enhance survival of cultivated aquatic organisms. When the TRO concentration was maintained at 0.16 mg/l for two hours, the total bacteria plate count dropped from 7.7 x 103 CFU/ml in the untreated sea water to less than 10 CFU/ml in the ozone-treated sea water. The TRO con- centration in the ozone-treated water was well below the 96-h LC50 for hybrid tilapia (Oreochromis mossambicus x O. niloticus) and whiteleg shrimp (Litopenaeus vannamei) determined in this study. Hence, adjust- ment of the ozone concentration in aquacultural sea water is a viable option that simultaneously kills the majority of harmful bacteria in the water and enhances survival of cultivated aquatic organisms.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20565
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2009
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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  • 5
    Online Resource
    Online Resource
    An inclusive school for computer science: Evaluating early impact with propensity score matching
    Elsevier BV ; 2023
    In:  Studies in Educational Evaluation Vol. 79 ( 2023-12), p. 101293-
    Details
    In: Studies in Educational Evaluation, Elsevier BV, Vol. 79 ( 2023-12), p. 101293-
    Type of Medium: Online Resource
    ISSN: 0191-491X
    URL: Article
    DOI: 10.1016/j.stueduc.2023.101293
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 194378-9
    detail.hit.zdb_id: 2019715-9
    SSG: 5,3
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  • 6
    Online Resource
    Online Resource
    Fundamentals of Rotating Disc and Ring–Disc Electrode Techniques and their Applications to Study of the Oxygen Reduction Mechanism at Pt/C Electrode for Fuel Cells
    Wiley ; 2008
    In:  Israel Journal of Chemistry Vol. 48, No. 3-4 ( 2008-12), p. 215-228
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 48, No. 3-4 ( 2008-12), p. 215-228
    Abstract: This article is concerned with the fundamental and experimental overview of the rotating disc electrode (RDE) and rotating ring–disc electrode (RRDE) techniques. First, this review provides a brief discourse on the basic concepts and general descriptions of the RDE and RRDE techniques. Then, the theoretical derivation of the governing equations for the RDE and RRDE is described with the definition of the important kinetic parameters. Finally, the experimental applications of RDE and RRDE techniques to investigate the mechanism and kinetics of oxygen reduction at Pt‐dispersed carbon (Pt/C) electrodes for fuel cells are discussed in detail from a practical point of view.
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Article
    DOI: 10.1560/IJC.48.3-4.215
    Language: English
    Publisher: Wiley
    Publication Date: 2008
    detail.hit.zdb_id: 2066481-3
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  • 7
    Online Resource
    Online Resource
    High‐efficiency Silicon Solar Cells: A Review
    Wiley ; 2015
    In:  Israel Journal of Chemistry Vol. 55, No. 10 ( 2015-10), p. 1050-1063
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 55, No. 10 ( 2015-10), p. 1050-1063
    Abstract: Over the past few decades, crystalline silicon solar cells have been extensively studied due to their high efficiency, high reliability, and low cost. In addition, these types of cells lead the industry and account for more than half of the market. For the foreseeable future, Si will still be a critical material for photovoltaic devices in the solar cell industry. In this paper, we discuss key issues, cell concepts, and the status of recent high‐efficiency crystalline silicon solar cells.
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Issue
    URL: Article
    DOI: 10.1002/ijch.v55.10
    DOI: 10.1002/ijch.201400210
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2066481-3
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  • 8
    Online Resource
    Online Resource
    Effects of Pre‐annealing on Firing Stability of Atomic Layer‐Deposited Al 2 O 3
    Wiley ; 2015
    In:  Israel Journal of Chemistry Vol. 55, No. 10 ( 2015-10), p. 1075-1080
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 55, No. 10 ( 2015-10), p. 1075-1080
    Abstract: Al 2 O 3 layers fabricated with atomic layer deposition (ALD) show high levels of surface passivation on p‐ and n‐type silicon wafers. In order to form front and rear electrodes, Al 2 O 3 layers should undergo a firing process at a high peak temperature. Therefore, the Al 2 O 3 layer must be stable under these conditions to maintain a high level of surface passivation during the firing process. In this study, Al 2 O 3 layers fabricated with ALD were pre‐annealed to enhance their thermal stability during the firing process. From quasi‐steady state photoconductance (QSSPC) measurements, the difference between the implied V oc values of the pre‐annealed and fired samples was found to be smallest (3 mV) when the sample was pre‐annealed at 620 °C. The surface recombination rate calculated from capacitance‐voltage ( C ‐ V ) measurements of metal‐Al 2 O 3 ‐Si (metal‐insulator‐semiconductor) structures was shown to be low when the sample was pre‐annealed at 600–650 °C. Thus, firing stability was achieved with pre‐annealing at 620 °C by reducing the surface recombination rate. We conclude that it is necessary to pre‐anneal the Al 2 O 3 passivation layer at this specific temperature to reduce the degradation of the passivation quality of Al 2 O 3 after the firing process.
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Issue
    URL: Article
    DOI: 10.1002/ijch.v55.10
    DOI: 10.1002/ijch.201400192
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2066481-3
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  • 9
    Online Resource
    Online Resource
    A comparison of the physiological responses to heat stress of juvenile and adult starry flounder (Platichthys stellatus)
    SAABRON PRESS ; 2021
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 73 ( 2021-12-29)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 73 ( 2021-12-29)
    Abstract: Water temperature is the most important factor in fish farming as changes in water temperature cause physiological stress in fish. There have been few studies on physiological responses to high temperatures, which vary with aging. This study investigated the responses of juvenile and adult Platichthys stellatus to heat stress. Plasma cortisol, glucose, lactate, and lysozyme levels, antioxidant enzyme activities, and expression of heat shock proteins 70 and 90 (HSP70 and HSP90) of P. stellatus were determined at water temperatures of 16, 20, 24, 28, and 30°C. As a result, it was confirmed that several plasma parameters of adult were significantly higher than that of juvenile under heat stress. Plasma cortisol and glucose levels of adult were increased than juvenile at 24 and 28°C. Plasma lactate level of adult were higher than that of juvenile at 28°C. Comparisons of survival and physiological changes showed that juveniles have better thermal tolerance, resulting in a higher cumulative survival rate. Moreover, the relationship between thermal tolerance and HSP gene expression revealed that expression of HSP70 and HSP90 was significantly upregulated at 28°C in both juvenile and adult fish, and HSP70 expression was significantly higher in juvenile fish than in adult fish. It is judged that the adult’s HSP70 activity was lower than juvenile, so the demand for plasma parameters for heat response was relatively high, whereas juvenile’s HSP70 activity increased at 24 and 28°C, indicating a relatively stable value of plasma parameters. These results indicate that the thermal tolerance of juvenile fish is greater than that of adult fish, based on the differences in plasma parameters and HSP expression. These findings improve our understanding of age-related changes in P. stellatus during thermal stress and may help guide the management of fish farms.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.31303
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2021
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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  • 10
    Online Resource
    Online Resource
    The involvement of GSK3β for glycogen synthesis throughout the annual cycle of Pacific oyster, Crassostrea gigas (Magallana gigas)
    SAABRON PRESS ; 2023
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 75, No. 1 ( 2023-1-6)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 75, No. 1 ( 2023-1-6)
    Abstract: Crassostrea gigas is a frequently studied species in understanding physiological processes in bivalves. Similar to other animals, oysters store glucose in the body as glycogen. Glycogen is known to supply energy for germ cell development and maintenance. Glycogen is synthesized by glycogen synthase. GSK3β regulates glycogen synthase activity and plays an important role in glycogen synthesis. Therefore, this study aims to examine the effect of GSK3β on the annual cycle of oysters and the glycogen synthesis pathway and to investigate the energy pathway in comparison with seasonal variation. Oysters were sampled monthly for one year and were subjected to glycogen content, RT-PCR, FISH, and western blot analysis. The year-round glycogen content significantly differs only in the mantle edge during spring and summer of both sexes but not in labial palp, digestive gland, gonad, and adductor muscle. The expression of GSK3β mRNA level was highest in October for females and April for males. Both sexes had the lowest expression in July. In the adductor muscle, females and males showed the highest expression in April and the lowest in July and October. The pattern of GSK3β expression in gonads and adductor muscle was similarly confirmed through FISH. As a result of examining the signaling system, p-GSK3β (serine 9) increased. At the same time, glycogen synthase decreased in May when the condition index was the highest, p-GSK3β decreased in October and July when spawning occurred, and glycogen synthase increased. Overall, it is thought that p-GSK3β expression is high in C. gigas at ripe, which inhibits glycogen synthesis and is used as energy for growth and maturation. Glycogen synthesis occurs for energy storage during degeneration.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.67818
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2023
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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