Biological measurements

The research objectives of the thesis: To evaluate the diversity of medicinal plant resources in Hoang Su Phi, Ha Giang and propose measures for sustainable conservation and use.

27p beloveinhouse01 15-08-2021 18 4   Download

Research objectives: Determination of the species composition of weevils on corn in warehouses in Son La; Effects of several ecological factors on growth characteristics of the maize weevil Sitophilus zeamais Motschulsky as the scientific basis for suitable measures in corn storage warehouses.

27p extraenglish 24-05-2021 14 4   Download

Purposes of the study: Introduce and clarify the concept "the competency of exploring and obtaining knowledge" through elemental competencies and compatible activities in teaching maths for high school students; Find out the reality and need of improving the competency of exploring and obtaining knowledge in teaching maths for high schools students majoring in physics, chemistry and biology; Build and test the feasibility of pedagogy method applied in teaching maths at high school classes majoring in physics, chemistry, and biology to foster this capacity for students.

27p prisonbreak123 21-05-2021 21 3   Download

The meaning of the dissertation topic: This research contributes to complete the list and evaluate the diversity of medicinal plants in the coastal districts of Thai Binh province to serve local medical needs.

30p capheviahe27 23-02-2021 32 3   Download

The differential pulse voltammetric method at a hanging mercury drop electrode was used to determine the presence of ofloxacin. In this study, the conditions under which differential pulse voltammetric measurement could be conducted were examined and established.

8p tamynhan8 04-11-2020 13 2   Download

The degradation and mineralization efficiency of NB in the systems looked at in this study were determined by measuring the NB concentration and COD values before and after reaction. The influence of pH, Fe(0)-mass and EDTA on the degradation and mineralization efficiencies were also investigated.

7p tamynhan8 04-11-2020 10 2   Download

Photosynthesis is able to convert solar energy into chemical energy in the form of biomass, but the efficiency of photosynthetic solar energy conversion is low. Chlorophyll fluorescence measurements are rapid, nondestructive, and can provide a wealth of information about the efficiencies of the photosynthetic light reaction processes.

19p vishikamaru2711 29-04-2020 13 1   Download

The research objectives of the thesis determine the diversity and distribution characteristics of amphibian species (EN) in some limestone areas of Northern Vietnam. Species composition and genetic relations of two species of Limnonectes and Odorrana frogs in Vietnam. Conservation values ​​and threats to frog species in the study area and recommendations for conservation. To know the detailed research content, invite you to consult the thesis.

28p xacxuoc4321 11-07-2019 33 4   Download

The objectives of the thesis: To identify species composition of PPNs on carrots in major carrot growing areas in Vietnam. To determine the parasitic nematode group causing significant damage to carrots in the studied areas. To evaluate the ability to control some important PPNs on carrots by using antagonistic fungi in the laboratory conditions.

27p xacxuoc4321 09-07-2019 61 4   Download

It is based on research of some agricultural biological characteristics of some lines and varieties of pomelo plants available prospect and consistent with conditions of Thai Nguyen Province, along with relevant technical measures to improve productivity and quality of the products.

28p change05 08-06-2016 50 3   Download

Research objectives: It is to determine agrobiological features as a scientific basis for the study of the mechanism creating seedless fruits, and to intervene with technical measures in order to improve productivity and quality of fruits of citrus trees. It is to study applications of some technical measures to improve productivity and quality of fruits in some citrus tree cultivars.

27p change03 06-05-2016 45 4   Download

Objectives: General objectives Supplement the biological and ecological characteristics of Pseudotsuga brevifolia W. C Cheng & L.K. Fu to the scientific bases for development and convervation of this specie in Vietnam.

27p change01 05-05-2016 50 6   Download

A clear difference in the enthalpy changes derived from spectroscopic and calorimetric measurements has recently been shown. The exact interpretation of this deviation varied from study to study, but it was generally attributed to the non-two-state transition and heat capacity change. Although the temperature-dependent thermodynamics of the duplex formation was often implied, systemic and extensive studies have been lacking in universally assigning the appropriate thermodynamic parameter sets.

10p system191 01-06-2013 36 4   Download

Intracellular pH homeostasis in the filamentous fungus Aspergillus niger was measured in real time by 31P NMR during perfusion in the NMR tube of fungal biomass immobilized in Ca2+-alginate beads. The fungus maintained constant cytoplasmic pH (pHcyt) and vacuolar pH (pHvac) values of 7.6 and 6.2, respectively, when the extracellular pH (pHex) was varied between 1.5 and 7.0 in the presence of citrate. Intracellular metabolism did not collapse until a DpH over the cytoplasmic membrane of 6.6–6.7 was reached (pHex 0.7–0.8).

10p research12 01-06-2013 41 4   Download

Insulin-like growth factor (IGF) binding to the type 1 IGF receptor (IGF1R) elicits mitogenic e€ects, promotion of di€erentiation and protection from apoptosis. This study has systematically measured IGF1R binding anities of IGF-I, IGF-II and 14 IGF analogues to a recombinant high-anity form of the IGF1R using BIAcore technology. The analogues assessed could be divided into two groups: (a) those designed to investigate binding of IGF-binding protein, which exhibited IGF1R-binding anities similar to those of IGF-I or IGF-II;...

8p research12 01-06-2013 40 4   Download

Ikkai&Ooi [Ikkai,T.&Ooi,T. (1966)Biochemistry5, 1551± 1560] made a thorough study of the e€ect of pressure on G- and F-actins. However, all of the measurements in their study were made after the release of pressure. In the present experiment in situ observations were attempted by using eATP to obtain further detailed kinetic and thermodynamic information about the behaviour of actin under pressure.

8p research12 29-04-2013 41 7   Download

Small-angle neutron scattering experiments were performed on horse azidometmyoglobin (MbN3) at pressures up to 300 MPa.Other spectroscopic techniques have shown that a reorganization of the secondary structure and of the active site occur in this pressure range. The present measurements, performedusingvarious concentrations ofMbN3, showthat the compactness of the protein is not altered as the value of its radius of gyration remains constant up to 300 MPa.

7p research12 23-04-2013 54 3   Download

The interaction of bacterial endotoxins [lipopolysaccharide (LPS) and the
endotoxic principle lipid A], with high-den-sity lipoprotein (HDL) from serum was investigated with a variety of physical techniques and biological assays. HDL exhibited an increase in the gel to liquid crystalline phase transition temperature Tc and a rigidification of the acyl chains of the endotoxins as measured by Fourier-transform infrared spectroscopy and differential scanningcalorimetry.

10p tumor12 22-04-2013 38 3   Download

Peptides corresponding to the N-terminus of skeletal myosin light chain 1 (rsMLC1 1–37) and the short loop of human cardiacb-myosin (hcM398–414) have been shown to interact with skeletal F-actin by NMR and fluorescence measurements. Skeletal tropomyosin strengthens the binding of the myosin peptides to actin but does not interact with the peptides. The binding of peptides cor-responding to the inhibitory region of cardiac troponin I (e.g. hcTnI128–153) to F-actin to form a 1 : 1 molar complex is also strengthened in the presence of tropomyo-sin. ...

13p tumor12 22-04-2013 36 2   Download

A computer program has been evaluated for subsite map calculations of depolymerases. The program runs inWIN-DOWSanduses the experimentallydeterminedbond cleavage frequencies (BCFs) for determination of the number of subsites, the position of the catalytic site and for calculation of subsite binding energies. The apparent free energy values were optimized by minimization of the differences of the measured and calculated BCF data.

6p tumor12 22-04-2013 39 5   Download