HOWLAND AND KRAMER [1923] showed that in rickets the concentration product of calcium and inorganic phosphorus falls below a certain critical level. Their work suggested a fundamental relationship between the levels of Ca and inorganic P of the blood. Bourne and Campbell [1932] by simultaneous determinations of calcium and inorganic P of the blood in rabbits have shown that the concentrations o...

The surface tension of compliant materials such as gels provides resistance to deformation in addition to and sometimes surpassing that owing to elasticity. This paper studies how surface tension changes the contact mechanics of a small hard sphere indenting a soft elastic substrate. Previous studies have examined the special case where the external load is zero, so contact is driven by adhesio...

William Budd (1)) anticipating the discovery of the typhoid bacillus by 24 years, probably intuited the existence of carriers when he said that “the first case may be foreign or may be due to the local poison that arises, like a fire from its ashes, as a sleeping legacy from a similar previous outbreak.” At the end of the nineteenth century, Koch demonstrated clearly the role of the human being...

The performance of compressed tablet drug delivery systems made using polymeric materials depend on multiple factors, such as surface properties like contact angle, surface free energy and water absorption rate, besides the release mechanisms driven by the kind of polymer used. Hence, it should be possible to establish a relationship between the surface properties and the drug release kinetics....

واژه «تجدد» modernity یکی از واژه‏های چترگونه است که می‏تواند معانی متعدد و حتی گوناگون را در برداشته باشد. آن گونه که اخیرا در کتابی از لویی دوپره luis dupre با نام گذار به تجدد (1) passage to modernity آمده است، «تجدد حادثه‏ای است که رابطه بین هستی، منشا متعالی آن و انسان مفسر را دگرگون کرده‏است‏». (ص‏249کتاب) این جمله هر چند تا حدی خنثی است. در عین حال دلالت می‏کند که ترکیب زنده پیشین گسسته،...

H. Baghdasaryan,* L. B. Weinstein, J.M. Laget, K. P. Adhikari, M. Aghasyan, M. Amarian, M. Anghinolfi, H. Avakian, J. Ball, M. Battaglieri, I. Bedlinskiy, R. P. Bennett, B. L. Berman, A. S. Biselli, C. Bookwalter, W. J. Briscoe, W.K. Brooks, S. Bültmann, V.D. Burkert, D. S. Carman, V. Crede, A. D’Angelo, A. Daniel, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, B. Dey, R. Dickson, C. Djalali, ...

The issue of workplace aggression has garnered significant media attention in the last decade (Bensimon, 1994; Bulatao & VandenBos, 1996). This increased public awareness of aggression at work has been closely mirrored by increased attention to this problem among organizational researchers (e.g., Baron & Neuman, 1996; Inness et al., 2005; LeBlanc & Kelloway, 2002). Over the years, scholars have...

A presidential address to a learned society or the inaugural address of a professor is usually devoted to one of three possible themes. It can be concerned with political considerations, with a historical survey of some subject, or it can be devoted to a purely scientific problem. We, in our Association, have had in the past two of these themes, the political and the scientific. I am suggesting...

The LRRK 2 gene is a very large gene consisting of 51 exons, with pathological mutations reported to date in 10 of the exons. The most common mutation is G2019S, located in exon 41. The frequency of this mutation varies among different ethnic groups, with the highest frequency found in PD patients from Northern Africa, including the Arabic (30%) and Ashkenazy Jewish (18%) populations. It has be...

Snake bites are frequently reported in both rural and suburban areas worldwide (1). They are especially common in areas with climate and ecological conditions suitable for poisonous snake species. Among the victims of poisonous snakebites, lactating women are no exception. In such cases, one of the most important questions facing a clinical toxicologist is ‘when can a lactating patient restart ...