1,270 research outputs found
Interplay of polarization geometry and rotational dynamics in high harmonic generation from coherently rotating linear molecule
Recent reports on intense-field pump-probe experiments for high harmonic
generation from coherently rotating linear molecules, have revealed remarkable
characteristic effects of the simultaneous variation of the polarization
geometry and the time delay on the high harmonic signals. We analyze the
effects and give a unified theoretical account of the experimental observationsComment: 4 pages, 5 figure
Multiphoton excitations in vibrational rotational states of diatomic molecules in intense electromagnetic field
A theory is presented and a calculational procedure is outlined for evaluating transition amplitudes of multiphoton excitations of vibrational-rotational levels in diatomic molecules. This theory can be utilized in studying behavior of molecules in intense electromagnetic fields
Contributing Factors to Under-Five Child Malnutrition in Rural Bangladesh
Background and objectives: Bangladesh has the highest malnutrition rates in the world. The main objective of this study is to identify and determine the main factors for child malnutrition among children under the age 5 years in rural Bangladesh.
Material and methods: This research was conducted in rural areas at Meherpur district in Bangladesh. Convenience sampling method is used and 85 under 5 child information is collected through a structured questionnaire. The information’s of child’s are gathered from the mothers of the child. Malnourished children is measured by using APLS method and WHO Child Growth Standard Median Index. Binary logistic regression model is used to find out the key factors of malnutrition.
Results: It is found that family income, maintain proper diet during pregnancy period, proper diet maintain for children have negative significant (p\u3c0.05) effect on child malnutrition.
Conclusion: The magnitude of the child’s malnutrition still is of great concern in Bangladesh. Since, poverty, imbalanced diet during pregnancy period and imbalanced diet for under 5 children influences to malnutrition are significantly associated with high prevalence of malnutrition, so government and people should reduce these factor to reduce malnutrition in rural area of Bangladesh
Konsep Manajemen Mutu Pendidikan
Quality is the most important aspect in every educational institution, where quality is believed to be the main capital in facing competition. Therefore, managing an educational institution must be comprehensive and integrated. This is inseparable from how an institution manages that quality. Management of quality management is basically directed to consistently meet consumer needs and achieve continuous improvement in every aspect of educational institution activities. Basically quality management seeks to improve the quality of work, productivity and efficiency through improving both internal and external performance. The quality of education can be seen from the fulfillment of the eight educational standards that must be met by schools. The eight education standards include content standards (implementation and curriculum development), process standards, assessment standards, graduate competency standards, educator and education staff standards, elements management standards in educational institutions, education financing standards, educational facilities and infrastructure standards
Long Term Culture of Hepatocytes of Some Fish Species of the Chesapeake Bay
The liver is an important site of metabolism and effects of toxic chemicals. This makes it an important organ for tumorigenesis studies. This study was aimed at investigating the optimal culture characteristics of liver cells derived from some indigenous Chesapeake Bay fish species. Hepatocytes from Atlantic -menhaden (Brevootia tyraMus), toadfish (Opsanus tau), croaker (Micropogonius undulatus), and hogchocker (Trinectes maculatus) were isolated using an enzymatic dispersion technique. The highest yield was obtained from toadfish livers (14.9±5. lx 1 o5 cells/g oflive weight) and the lowest was from the croaker (5.9±3. lx 1 o5 cells/g of live body weight). The percentage of hepatocytes in cell preparations exceeded 90% except for the toadfish liver cells preparation (82.3%). Freshly isolated hepatocytes were globular with irregular contour and occurred as individual cells or small clusters of 2-30 cells. A confluent monolayer of attached cells was obtained after two weeks of incubation. An osmolality of 325 m Osm/kg best supported the multiplication of hepatocytes of the four fish species. While the optimum temperature for hogchocker and toadfish hepatocytes appeared to be 33oC; it ranged from 21-27oC for menhaden and croaker. The medium that best supported the growth of culture
The potential of long term hepatocyte culture using fish of Chesapeake Bay will enable further studies on the activation and detoxification processes of xenobiotics and, therefore, help in understanding pollution related neoplasia and diseaseshttps://scholarworks.wm.edu/vimsbooks/1181/thumbnail.jp
Utilisation of DNA barcoding for identification of fish products
DNA barcoding has been accepted nowadays as a globally accessible tool to delimitate and identify new species, as it can provide accurate and automated species identification through the use of standard gene, Cytochrome oxidase I (COI). As a result, DNA barcoding has become a perfect molecular tool to identify fish products and detect wrongly labelled fish in the market as it can identify fish species even without the presenceof complete morphological characteristics. Here we collected samples from sushi restaurants to investigate and identify the precise species identity of raw fish sushi products because most of them were labelled with only common names such as Tuna, Salmon and Butterfish without providing the scientific name of the fishes. Species identities of seven specimens from two sushi restaurants were DNA barcoded utilising the cytochrome oxidase I (COI) gene. The data were BLAST with GenBank and BOLD to confirm species identification. The results showed 100% matches that there was nosubstitution and wrongly labelling of species as the Salmon sushi matched the database sequences of Salmo salar, Tuna to Thunnus albacares and Butterfish to Lepidocybium flavobrunneum. The investigation of these fishproduct true identities should be carried out routinely to ensure consumer protection from mislabelling and substitution for a cheaper fishin order to avoid health issuessuch as allergic reaction due to intake of the wronglylabelled produc
Utilisation of DNA Barcoding for Identification of Fish Products
DNA barcoding has been accepted nowadays as a globally accessible tool to delimitate and identify new species, as it can provide accurate and automated species identification through the use of standard gene, Cytochrome oxidase I (COI). As a result, DNA barcoding has become a perfect molecular tool to identify fish products and detect wrongly labelled fish in the market as it can identify fish species even without the presenceof complete morphological characteristics. Here we collected samples from sushi restaurants to investigate and identify the precise species identity of raw fish sushi products because most of them were labelled with only common names such as Tuna, Salmon and Butterfish without providing the scientific name of the fishes. Species identities of seven specimens from two sushi restaurants were DNA barcoded utilising the cytochrome oxidase I (COI) gene. The data were BLAST with GenBank and BOLD to confirm species identification. The results showed 100% matches that there was nosubstitution and wrongly labelling of species as the Salmon sushi matched the database sequences of Salmo salar, Tuna to Thunnus albacares and Butterfish to Lepidocybium flavobrunneum. The investigation of these fishproduct true identities should be carried out routinely to ensure consumer protection from mislabelling and substitution for a cheaper fishin order to avoid health issuessuch as allergic reaction due to intake of the wronglylabelled produc
Strong-field ionization of atoms and molecules: The two-term saddle point method
We derive an analytical formula for the ionization rate of neutral atoms and
molecules in a strong monochromatic field. Our model is based on the
strong-field approximation with transition amplitudes calculated by an extended
saddle point method. We show that the present two-term saddle point method
reproduces even complicated structures in angular resolved photo electron
spectra
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