Embryonic development and hatching of Loligo duvaucelii Orbigny (Loliginidae, Cephalopoda) in the laboratory

The egg masses and adults U common squid Loligo duvaucelii were collected cm the shore seine and from the inteitidal sandy shore at Karwar. The embryonic development and hatching of the squid was observed in the laboratoiy, Each egg mop consisted <^ many egg capsules, each of which, in turn, consisted of 125-150 eggs. Eggs were 2 mm Iraig and 1.75 ram wide and very yolky. The young ones hatched in 5 days measuring 1.83 nun in DML and 3.17 mm in total length including the arms. Mantle width wa^ 1.5S mm. The young ones survived for 5 days in the aquaiium

Seasonal variations of physico-chemical properties of the Great Vedaranyam Swamp, Point Calimere Wildlife Sanctuary, South-east coast of India

The present study was attempted on the physico-chemical variability of the Great Vedaranyam Swamp of the Point Calimere Wildlife Sanctuary, South-east coast of India. Seasonal variation study was carried out to examine level of varying physico-chemical parameters such as temperature, salinity, pH, dissolved oxygen, nitrate, nitrite, electrical conductivity, phosphate, turbidity, total dissolved solids and water depth. The physico-chemical parameters have exhibited considerable seasonal and spatial variations. The qualitative study revealed the present status of the physico-chemical parameters, which would be very helpful for policy makers to take precautionary measures to save the swamp.Key words: Seasonal variations, physico-chemical parameters, Point Calimere Wildlife Sanctuary, pH, salinity, temperature

Signature of a silver phase percolation threshold in microscopically phase separated ternary Ge0.15Se0.85-xAgx (0 <= x <= 0.20) glasses

Temperature modulated Alternating Differential Scanning Calorimetric (ADSC) studies show that Se rich Ge0.15Se0.85-xAgx (0 <= x <= 0.20) glasses are microscopically phase separated, containing Ag2Se phases embedded in a Ge0.15Se0.85 backbone. With increasing silver concentration, Ag2Se phase percolates in the Ge-Se matrix, with a well-defined percolation threshold at x = 0.10. A signature of this percolation transition is shown up in the thermal behavior, as the appearance of two exothermic crystallization peaks. Density, molar volume and micro-hardness measurements, undertaken in the present study, also strongly support this view of percolation transition. The super-ionic conduction observed earlier in these glasses at higher silver proportions, is likely to be connected with the silver phase percolation.Comment: 4 pages, 7 figure

Effect Of Thallium Additive On Heat Capacities Of In-Se Bulk Chalcogenide Glasses

Chalcogenide glasses are promising materials for optoelectronic device applications. Heat capacity of such materials is the essential physical parameter to estimate the energy/data storage capacity. In the present work, the effect of Tl incorporation on heat capacities ΔCpg, ΔCpc and ΔCpm of In10Se90-xTl x (7≤x≤15) and In15Se85-xTlx (2≤x≤10) bulk glasses have been investigated by analyzing the Differential scanning calorimetry (DSC) thermogram plots. Composition dependence of heat capacities of In-Se-Tl glassy systems have been obtained at the peaks of the glass transitions, crystallizations and melting temperatures (Tg, Tc and Tm). It is found that the heat capacities of In10Se90-xTl x and In15Se85-xTlx glasses increases initially with the incorporation of thallium (up to x≤13 and x≤6) and reaches to maximum at x=13 and x=6 respectively beyond which it decreases. This behavior seems to follow the change in network connectivity and rigidity and may be explained with the help of chemical bond theory of solids. Further in these glassy materials, at the average coordination =2.46 (x=13) and = 2.42 (x=6) a sharp slope change is seen in the composition dependence of heat capacity of both the series which is attributed to the rigidity percolation threshold

IR Studies of Impurities in In-Se-Tl Bulk Chalcogenide Glassy System

Chalcogenide glasses with composition In10Se90-xTlx (7≤x≤15) and In15Se85-xTlx (2≤x≤10) are synthesized by melt quenching technique. The FT-IR transmission spectroscopy studies using KBr pellet method in the wavelength range 400-4000 cm-1 has been carried out. The In-Se-Tl glasses studies shows good transparency in the entire spectral range. There is an increase in percentage of transmittance values with increase in the Tl content. In the transmittance curve various absorption bands are seen, which are related to chemical bonds of different extrinsic impurities present in the glassy material. The vibrational properties of the impurities in the powdered samples are measured. Vibrational modes attributed to O-H hydroxyl groups, molecular H2O and carbon impurity atoms were detected in the mid-IR spectra

PRASAVA (LABOUR) IN AYURVEDA- A LESS KNOWN CONCEPT

Childbirth is a physiologic and natural process has been undertaken by women over the years with professional assistance in which most of the women experience labour pain and childbirth as most severe and agonising event of a woman’s existence. Labour is linked with a painful experience, though there are no underlying pathological processes, a lot of women are worried about labour pain and how they can be relieved of pain.&nbsp;Pharmacological agents such as pethidine (Meperidine) and other analgesics are used to effectively control labour pain. Both pharmacological and non-pharmacological approaches are necessary to relief labour pain effectively. Some women employ other non- pharmacological pain relief measures during labour such as breathing exercises, taking showers, and assuming specific positions and moving about to control their pain. In addition, the use of herbal medicine has been reported to relieve labour pain. Description of labour in Ayurvedic science, though found since 5000yrs ago is a very less known concept to many people as they are not much in practice. Currently the labour is managed only by the conventional medicine with some interventions with addition of Yoga and Ayurveda in the Antenatal care. By evaluating the complete knowledge of Prasava or the labour explained in Ayurvedic science, the same may be incorporated as an add-on in the future studies to make it evidence based and also to corroborate the authenticity of the science through research

NEW SEPARATION AXIOMS IN

In this paper, we represents few separation axioms ar

Magnetic and humidity sensing properties of nanostructured Cu[x]Co[1-x]Fe2O4 synthesized by auto combustion technique

Magnetic nanomaterials (23-43 nm) of Cu$_x$Co$_{1-x}$Fe$_2$O$_4$\ (x = 0.0, 0.5 and 1.0) were synthesized by auto combustion method. The crystallite sizes of these materials were calculated from X-ray diffraction peaks. The band observed in Fourier transform infrared spectrum near 575 cm$^{-1}$ in these samples confirm the presence of ferrite phase. Conductivity measurement shows the thermal hysteresis and demonstrates the knee points at 475$^o$C, 525$^o$C and 500$^o$C for copper ferrite, cobalt ferrite and copper-cobalt mixed ferrite respectively. The hystersis M-H loops for these materials were traced using the Vibrating Sample Magnetometer (VSM) and indicate a significant increase in the saturation magnetization (M$_s$) and remanence (M$_r$) due to the substitution of Cu$^{2+}$ ions in cobalt ferrite, while the intrinsic coercivity (H$_c$) was decreasing. Among these ferrites, copper ferrite exhibits highest sensitivity for humidity.Comment: 12 pages, 7 figure