Some of the observational aspects related to the evolutionary status and dust production in R Cor Bor stars are discussed. Recent work regarding the surface abundances, stellar winds and evidence for dust production in these high luminosty hydrogen deficient stars are also reviewed. Possibility of the stellar winds being maintained by surface magnetic fields is also considered.

Bor-Luen Huang,1 Ming-Che Chang,1 and Chung-Yu Mou2,3,4 1Department of Physics, National Taiwan Normal University, Taipei, Taiwan 2Department of Physics, National Tsing Hua University, Hsinchu, Taiwan 3Institute of Physics, Academia Sinica, Nankang, Taiwan 4Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu, Taiwan Received 26 May 2010; revised manuscript receiv...

Background: Hospitals, the main providers of healthcare services, are costly centers which account for about 80% of the health sector budget and have a huge share of resources. Objective: This study aimed to analyze the economic performance of selected military hospitals in Tehran using hospital indicators and inpatient bed-day costs. Method...

* Supported by Ministry of Education, Culture, Sports, Science and Technology of Japan. † Correspondence to: Masatoshi Komiyama, DVM, PhD, Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chiba 260-8670, Japan Tel: (81)-43-226-2017 Fax: (81)-43-226-2018 E-mail: [email protected] BOR Papers in Press. Published on May 17, 2006 as DOI:10.1095/biolrepro...

Dysfunction of the ureter often leads to urine flow impairment from the kidney to the bladder, causing dilation of the ureter and/or renal pelvis. Six1 is a crucial regulator of renal development: mutations in human SIX1 cause branchio-oto-renal (BOR) syndrome and Six1(-/-) mice exhibit renal agenesis, although the ureter is present. It remains unclear whether Six1 plays a role in regulating ur...