Titanyl (IV), Zirconyl (IV), Hafnyl (IV) and Uranyl (VI) Complexes of Terdentate Benzoyl Hydrazones

Titanyl(IV), zixconyl(!V), hafnyl(IV) and uranyl(Vl) oomplexes of beniz\u27Dyl hydrazones derti.ved frnm benzoyl hymazdne and sal1cyla1dehyde (BSH), o-hydro!XY acetopheilOllle (BAH), o-hydroxy propi0tphenone (BPH) and 2-hydroxy-1-naphthaldehyde (BNH) are desc·ribed. These complexes were characterised on the basis oof elemental analyses, electrical conductance and spectral (IR, UV and visible) data. The tiltany1\u27(!V) complexes having ·the formula [TiL(OH) (H20) lzO appear ·to have a seven- coordinat·e geometry, the zirconyl and hafnyl complexes, [ML(OHh(H20) )4 (M = Zr or HO appear to possess tetrameric structure in which each metal atom is e.ight-coordina:ted as in the origin,aJl salt, MOCh.8H20 (M = Zr or Hf) ; whereas uranyl comple·xes [UO:J.;(H20hh are dimeric having phenoxide brlidges, •tiu/°\u27u•ti as revealed by the \u27-o,, r:in:g v~br.ations in the IR spectra at ca. 845 cm-1, wi.th each metal atom having an eightcoordinated structure. In all these complexes the benzoyl hydrazones act as di!ba:sic te1r.dentate (N, o-. o-> chelating agentJs

A Note on the Thermodynamics of the Wet-and Dry-Bulb Hygrometer

The paper deals with the thermodynamic study of the wet-and-dry bulb hygrometer as applied to other liquids besides water. Hygroscopic liquids are also included. The theory is found in reasonable accord with experiment

Novel duplex vapor electrochemical method for silicon solar cells

Progress in the development of low-cost solar arrays is reported. Topics covered include: (1) development of a simplified feed system for the Na used in the Na-SiF4 reactor; (2) production of high purity silicon through the reduction of sodium fluosilicate with sodium metal; (3) the leaching process for recovering silicon from the reaction products of the SiF4-Na reaction; and (4) silicon separation by the melting of the reaction product

Barriers to Changing Dietary Behavior

Abstract Dietary change requires giving up long established patterns of eating behavior and acquiring new habits. ‘Noncompliance’ to diet advice may be a result of inability to provide diet self-management training and getting the right messages across to change eating behavior. Using a pre-tested questionnaire based interview, we carried out a study amongst 350 adults (> 20 years) with type 2 diabetes from two metro cities in South India, who had previously received diet advice with the objective to understand perceptions, attitudes and practices, as well as study factors that enhance or reduce compliance to diet advice. Ninety six patients (28%) followed diet for the full duration of diabetes (Group1), 131 (38%) followed diet for a partial duration varying between more than a quarter to three quarters of the total diabetes duration (Group 2) and 115 (34%) did not follow diet advice (Group 3) – followed for a duration less than a quarter of their diabetes duration. Study results show that many factors both patient and health care provider related influence outcomes of dietary advice. Factors that have a positive impact on compliance are – older age, shorter duration, nuclear family, good family support, less busy work life, higher health consciousness, advice given by dietician, more frequent visits to dietician, advice that includes elements to promote overall health not merely control of blood sugar, diet counseling that is easy to understand and use and includes healthy food options, cooking methods, practical guidance to deal with lifestyle issues. We conclude that patient barriers related to life circumstance are mostly non-modifiable, most modifiable barriers are related to behavioural aspect and the inability of the health care provider to provide individualized diet advice and self management training. Efforts must be made to improve counseling skills

Flexible copper-indium-diselenide films and devices for space applications

With the ever increasing demands on space power systems, it is imperative that low cost, lightweight, reliable photovoltaics be developed. One avenue of pursuit for future space power applications is the use of low cost, lightweight flexible PV cells and arrays. Most work in this area assumes the use of flexible amorphous silicon (a-Si), despite its inherent instability and low efficiencies. However, polycrystalline thin film PV such as copper-indium-diselenide (CIS) are inherently more stable and exhibit better performance than a-Si. Furthermore, preliminary data indicate that CIS also offers exciting properties with respect to space applications. However, CIS has only heretofore only produced on rigid substrates. The implications of flexible CIS upon present and future space power platforms was explored. Results indicate that space qualified CIS can dramatically reduce the cost of PV, and in most cases, can be substituted for silicon (Si) based on end-of-life (EOL) estimations. Furthermore, where cost is a prime consideration, CIS can become cost effective than gallium arsenide (GaAs) in some applications. Second, investigations into thin film deposition on flexible substrates were made, and data from these tests indicate that fabrication of flexible CIS devices is feasible. Finally, data is also presented on preliminary TCO/CdS/CuInSe2/Mo devices

Titanyl (IV), Zirconyl (IV), Hafnyl (IV) and Uranyl (VI) Complexes of Terdentate Benzoyl Hydrazones

Titanyl(IV), zixconyl(!V), hafnyl(IV) and uranyl(Vl) oomplexes of beniz\u27Dyl hydrazones derti.ved frnm benzoyl hymazdne and sal1cyla1dehyde (BSH), o-hydro!XY acetopheilOllle (BAH), o-hydroxy propi0tphenone (BPH) and 2-hydroxy-1-naphthaldehyde (BNH) are desc·ribed. These complexes were characterised on the basis oof elemental analyses, electrical conductance and spectral (IR, UV and visible) data. The tiltany1\u27(!V) complexes having ·the formula [TiL(OH) (H20) lzO appear ·to have a seven- coordinat·e geometry, the zirconyl and hafnyl complexes, [ML(OHh(H20) )4 (M = Zr or HO appear to possess tetrameric structure in which each metal atom is e.ight-coordina:ted as in the origin,aJl salt, MOCh.8H20 (M = Zr or Hf) ; whereas uranyl comple·xes [UO:J.;(H20hh are dimeric having phenoxide brlidges, •tiu/°\u27u•ti as revealed by the \u27-o,, r:in:g v~br.ations in the IR spectra at ca. 845 cm-1, wi.th each metal atom having an eightcoordinated structure. In all these complexes the benzoyl hydrazones act as di!ba:sic te1r.dentate (N, o-. o-> chelating agentJs

The detection, treatment, and biology of epithelial ovarian cancer

Ovarian cancer is particularly insidious in nature. Its ability to go undetected until late stages coupled with its non-descript signs and symptoms make it the seventh leading cause of cancer related deaths in women. Additionally, the lack of sensitive diagnostic tools and resistance to widely accepted chemotherapy regimens make ovarian cancer devastating to patients and families and frustrating to medical practitioners and researchers. Here, we provide an in-depth review of the theories describing the origin of ovarian cancer, molecular factors that influence its growth and development, and standard methods for detection and treatment. Special emphasis is focused on interactions between ovarian tumors and the innate and adaptive immune system and attempts that are currently underway to devise novel immunotherapeutic approaches for the treatment of ovarian tumors

Gall Bladder And Common Bile Duct Stones – When Is Direct Cholangiography Indicated?

The medical records of 277 consecutive patients who underwent cholecystectomy for benign gall stone disease, were reviewed to determine the incidence and cause of biliary tract obstructuion

Striatal dopamine D2 receptor binding of risperidone in schizophrenic patients as assessed by 123I-iodobenzamide SPECT: a comparative study with olanzapine

The aim of this investigation was to compare the degree of striatal dopamine-(D2) receptor blockade by two atypical antipsychotic drugs, risperidone and olanzapine. The percentage of D2 receptor occupancy during treatment was calculated by comparing the results of 123I-iodobenzamide SPECT with those from healthy control subjects. Twenty inpatients suffering from schizophrenia or schizoaffective psychosis according to DSM IV/ICD-10 criteria were treated with clinically recommended doses of risperidone and compared with 13 inpatients treated with up to 20 mg olanzapine. Neuroleptic dose and D2 receptor blockade correlated strongly for both risperidone (Pearson r = –0.86, p = 0.0001) and olanzapine (Pearson r = –0.77, p = 0.002). There was no significant difference between the D2 receptor occupancy of the two substances when given in the clinically recommended dose range (unpaired t-test, t= –0.112, p=0.911)