Description of stomatopod larvae from the Arabian Sea

The Northern Arabian Sea Ecological and Environmental Research (NASEER) Programme cruise I, January, 1992 and other collections from Manora Channel (Karachi) were examined. Six stages i.e. IV, VII, VIII, IX, X and XI of stomatopod larvae are recognized. Day samples talen in 1994 (January to December) from Manora Channel revealed the presence of only three specimens of stage IV. They all belong to the family Squillidae. Each stage is measured, described and illustrated. None of the stages could be correlated to their adults

A check list of opisthobranch snails of the Karachi coast

The check list deals with 44 species of opisthobranchs belonging to Cephalaspidea (12 species), Anaspidea (4 species), Sacoglossa (4 species), Notaspidea, (2 species) and Nudibranchia (21 species), collected from Pakistan coast of northern Arabian Sea

An illustrated key to the Malacostraca (Crustacea) of the northern Arabian Sea. Part 3: Euphausiacea

The key includes twenty-one species of euphausiids belonging to two families and six genera. The key was prepared following Brinton (1975). Since several authors attributed a fundamental importance to thelycum in systematics of euphausiids therefore the available figures of thelycum are also included

Low Stressed In-situ Boron doped Poly SiGe Layers for High-Q Resonators

Polycrystalline silicon-germanium (Poly SixGe1-x) can be used as one of the microstructural materials for MEMS due to its superior mechanical properties [1,2], high quality factor [3] and low thermal budget requirements based on the Ge contents [4] (<450 oC) for post processing on top of CMOS chip. This work deals with the characterization of in-situ boron doped poly SiGe layers LPCVD deposited at 430 oC with a mixture of 0.2% diborane (B2H6) in Argon on 110 nm SiO2. The concerned properties like sheet resistance and residual stress in the deposited layers are investigated at diborane mixture flow of 50 sccm and 100 sccm. It is observed that the deposition rate is decreased with the increase of B2H6 mixture flow. Whereas, the resistivity of these deposited layers decrease linearly with the increase of B2H6 mixture flow. The stress in the deposited layers shows a trend from low tensile to low compressive with the increase of diborane mixture flow. The properties of the layers deposited at 50 sccm of diborane mixture flow shows good results in terms of resistivity, deposition rate, cross load thickness uniformity and residual stress and therefore qualify them to use as structural layers for the realization of disk resonator

New record of Phrosina semilunata Risso, 1822 (Crustacea: Amphipoda: Phrosinidae) from Sindh territorial waters (Northern Arabian Sea)

Hyperiids are pelagic, mostly oceanic amphipods; few species are found in coastal waters. Phrosina semilunata Risso, 1822 belongs to the family Phrosinidae. The species P. semilunata has been previously reported from the Arabian Sea by Barnard (1937) and also from its southern part by Pillai (1966).The description of the monotypic genus Phrosina given by Bowman and Gruner (1973) is based only on female. Since in our collection specimens of both sexes are present, the male description would be the first one for this phrosinid population, it being important from the point of view of sexual dimorphism in head appendages found in the species. The specimens are housed in the MRC (cat No.AMPH-10)

The gametophyte of acrostichum aureum L.

The spores of A. aureum are trilete and granulose. On germination, a 6-10 cells long germ filament is produced, in which growth is mainly by intercalary formation of new cells rather than by cell elongation. One or two of the terminal cells become quiescent soon, and the intercalary cells form a prothallial plate. Cells on one side of the plate are more active than those on the other, and a broad ameristic lateral lobe is developed by their activity. As the lobe becomes spatulate, a multicellular meristem is differentiated from marginal cells on the side facing the posterior end of the germ filament. By the activity of the meristem the prothallus becomes cordate, with the meristem at the bottom of the notch. A midrib is formed behind the notch and the prothallus grows to become asymmetrically cordate. The mature prothallus is naked and with ruffled wings. Juvenile leaves possess entire, naked lamina

Rediscovery of Neocallichirus audax (De Man, 1911) (Decapoda: Thalassinidea) from Pakistan coast

Deep burrowing thalassinid shrimps also known as mud shrimp or ghost shrimp dominate soft sediment of muddy and sandy beaches. They serve their community by turning over the sediments and facilitating the nutrient influx by their burrowing. From sandy beaches of Pakistan coast four species of the family Callianassidae are known; these are Glypturus martensi (Miers), Neocallichirus audax (de Man), N. indicus (de Man), Podocallichirus masoomi (Tirmizi) (Tirmizi, 1967, 1970, 1974; Kazmi and Kazmi, 1992)

PRACTICAL GUIDELINES FOR CHILD FRIENDLY SUPPLY CHAIN:Vol. 1 - The Garment Sector

The guidelines are part of Global March's programmatic effort to address human trafficking, forced labour, child labour and modern slavery in the Garments/Textiles sector supply chains,usually rooted in countries with unequal and low socio-economic indicator