Energy conversion and element transfer in lower trophic levels in the marine environment

Studies on elemental and energy transfer in lower trophic levels in the marine environment were initiated in July 1962 after receipt of AEC contract AT(45-1)1751. It should be pointed out that this report covers only a six-month period, because for bookkeeping purposes the contract was made retroactive to 1 April 1962, at the request of the contractor

Evaluation of surgical procedures for sex reassignment : a systematic review

Objectives: To evaluate earlier reviews and literature concerning five individual surgical procedures for male-to-female (MTF) transsexism: clitoroplasty, labiaplasty, orchidectomy, penectomy and vaginoplasty. Further evaluations were made of eight surgical procedures for female-to-male (FTM) transsexism: hysterectomy, mastectomy, metoidoplasty, phalloplasty, salpingo-oophorectomy, scrotoplasty/placement of testicular prostheses, urethroplasty and vaginectomy. Background: Increased prevalence and advances in surgical options available to patients requesting gender reassignment surgery have made this an important consideration for research. There remains a lack of systematic reviewing of the evidence, in particular, of the individual surgical options available. Methods: Searches were undertaken in six electronic databases (Applied Social Sciences Index and Abstracts [ASSIA], Cochrane Library [Wiley Online], Embase [Ovid Online], Medline [Ovid Online], Medline in Process [Ovid Online], Psycinfo) providing coverage of the biomedical, grey literature and current research. Results: Eighty-two published papers (38 MTF; 44 FTM) met the inclusion criteria identified across the 13 surgical procedures. For MTF transsexism there was no evidence satisfying the inclusion criteria concerning labiaplasty, penectomy or orchidectomy procedures. A large amount of evidence was available concerning vaginoplasty and clitoroplasty procedures. For FTM transsexism satisfactory outcomes were reported. Outcomes related to the ability to perform sexual intercourse, achieve orgasm and void whilst standing. Some complications were reported for both MTF and FTM procedures. Conclusions: The evidence concerning gender reassignment surgery in both MTF and FTM transsexism has several limitations in terms of: (a) lack of controlled studies, (b) evidence has not collected data prospectively, (c) high loss to follow up and (d) lack of validated assessment measures. Some satisfactory outcomes were reported, but the magnitude of benefit and harm for individual surgical procedures cannot be estimated accurately using the current available evidence

Formal alliances, 1815—1939

Although students of world politics have come increasingly to speak of their empirical domain as a social system, little effort has gone into the systematic observation and measurement of its formal or informal structure. One structural attribute of the inter national system which leaves a definite trace and is therefore readily measurable, is that of alliance patterns. This paper examines all written (peacetime only) alliances among system members, describes the procedures for classifying them, and then transforms such information into quantitative indicators of alliance aggregation for various forms of the international system for every year between 1815 and 1939. Such data make it possible to treat this particular system attribute as either a dependent or an inde pendent variable for purposes of hypothesis testing or exploration in world politics.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68798/2/10.1177_002234336600300101.pd