Growth and characterization of thiosemicarbazide hydrochloride: a semiorganic NLO material.

Thiosemicarbazide hydrochloride (TSCHCL) was synthesized by mixing thiosemicarbazide and hydrochloride in 1:1 molar ratio in double distilled water. Single crystals of TSCHCL were grown by slow evaporation at room temperature and were characterized by single crystal X-ray diffraction study to determine the molecular structure and by FT-IR, (1)H and (13)C NMR spectral analyses to confirm the synthesized compound. Thermogravimetric and differential thermal analyses reveal the thermal stability of the crystal.

Synthesis, growth and characterization of 4-bromo-4'chloro benzylidene aniline--a third order non linear optical material.

The organic nonlinear optical material of 4-bromo-4'chloro benzylidene aniline (BCBA) was synthesized and single crystal of BCBA was grown from acetone solution by solvent evaporation method at room temperature. Its three dimensional structure was elucidated from single crystal X-ray diffraction analysis at 173 K. Synthesized compound of BCBA was subjected to FTIR and (1)H and (13)C NMR spectral analyses.

Survival of mycosis fungoides in patients in the Southeast of England.

Background: Mycosis fungoides (MF) is the most common skin lymphoma. The aetiology of MF remains unknown, and no therapy has to date significantly altered patient survival.

Objective: The present study examines trends in survival of MF patients in a well-defined population-based disease group, namely patients registered over a 40-year period at the Thames Cancer Registry, Southeast England.

Risk factors for oesophageal cancer in Linzhou, China: a case-control study.

Linzhou City has one of the highest incidences of oesophageal cancer in China, and in the world. A case-control study was here conducted to investigate potential risk factors in this area. Linzhou Cancer Registry was used to identify cases of oesophageal cancer, aged between 30 and 75, diagnosed between January 1998 and April 1999.

Residential Environment, Diet and Risk of Stomach Cancer: a Case-control Study in Linzhou, China.

A case-control study was conducted to investigate risk factors for stomach cancer in a rural population in China. Linzhou Cancer Registry was used to identify cases of stomach cancer, aged between 30 and 75 years, diagnosed between January 1998 and April 1999. Three neighbourhood controls were selected for each case, matched according to age, sex and village of residence.

Recent trends in prostate cancer incidence and mortality in southeast England.

Objective: To investigate recent trends in prostate cancer incidence and mortality, with particular reference to changes in diagnostic techniques and treatment.

Methods: The Thames Cancer Registry was used to identify all men, resident in SE England, diagnosed with prostate cancer between 1990 and 1999. Information regarding prostate cancer mortality was obtained from the Office of National Statistics.