In the diagnosis of masked hyperthyroidism, measurement of the serum precipitable iodine (SPI) (frequently also called protein-bound iodine [PBI]) has gained significance. Since 1951 determination of thyroxine-like or butanol-extractable iodine (BEI) has been the routine procedure in this laboratory.' This chemical tool is more specific than the PBI in the diagnosis of thyroid dysfunction. Not ...

Secondary malignancies are a common complication for patients receiving radiotherapy. Here, we compared rates of secondary malignancies after partial breast irradiation (PBI) and whole breast irradiation (WBI). The MEDLINE, EMBASE, and the Cochrane Library databases were systematically searched to identify relevant randomized clinical trials comparing PBI with WBI in breast cancer patients trea...

Self-assembled bolaamphiphilic perylene bisimide (PBI) containing an amino acid appended fluorescent semiconducting soft material (hydrogel) has been discovered at physiological pH. This new organic material based on self-assembled perylene bisimide appended amino acid-based bolaamphiphile (PBI-C11-Y) has been well characterized using various techniques including UV-Vis, fluorescence, X-ray dif...

Cyclen-functionalized perylenediimides PBI-1 and PBI-2 were first synthesized as highly sensitive and selective fluorescent chemosensors for Pb(2+) in aqueous solution. PBI-2 shows a better selectivity for Pb(2+) in the presence of other metal ions and, importantly, it can successfully enter the cell and be applied in imaging of living cells.

The title complex, (C(5)H(7)N(2))[PbI(3)], consists of a 1-amino-pyridinium cation, disordered about a mirror plane, and a [PbI(3)](-) anion. The Pb(2+) ion (site symmetry ) is surrounded by six I atoms in a slightly distorted octa-hedral coordination. The PbI(6) octa-hedra share faces, building up (∞) (1)[PbI(6/2)] chains running along [010]. The cations are situated between the chains. Coulom...

Recently, hybrid organic-inorganic metal halide perovskites have gained prominence as potent light harvesters in thin film solid-state photovoltaics. In particular the solar-to-electric power conversion efficiency (PCE) of devices using CH(3)NH(3)PbI(3) as sensitizer has increased from 3 to 20.1% within only a few years. This key material can be prepared by solution processing from PbI(2) and C...

Thyroxine in human serum migrates during paper electrophoresis at pH 8.6 with at least three protein components: an a globulin intermediate between a1 and a2, thyroxine-binding protein (TBP) (1, 2), albumin (1, 2) and a component moving faster than albumin, prealbumin or thyroxinebinding prealbumin (TBPA) (3). Alterations in serum protein-bound iodine (PBI) may occur in certain circumstances wi...

The current research investigated questions that persist regarding the criterion-related and construct validity of situational (SI) versus past-behaviour (PBI) structured interview formats in predicting the job performance of managers. Analyses of data collected from 157 applicants to managerial positions showed that the PBI format significantly predicted job performance ratings (r 1⁄4 :32, p ,...

Investigating the stability and evaluating the quality of the CH₃NH₃PbI₃ perovskite structures is quite critical both to the design and fabrication of high-performance perovskite devices and to fundamental studies of the photophysics of the excitons. In particular, it is known that, under ambient conditions, CH₃NH₃PbI₃ degrades producing some PbI₂. We show here that low temperature Photolumines...

Thyroidal function in goats as estimated by PBI values of blood serum showed a very high activity in oestrus, followed by that in pregnancy state. There was significant increase in PBI values between oestrus and non-pregnancy groups. The lack of significance between pregnancy and non-pregnancy values has been explained. Mean PBI values in oestrus, pregnancy and non-pregnancy were respectively 5...