introduction: a cleft lip with or without a cleft palate is one of the major congenital anomalies observed in newborns. this study explored the risk factors for oral clefts in gorgan, northern iran.  materials and methods: this hospital-based case-control study was performed in three hospitals in gorgan, northern iran between april 2006 and december 2009. the case group contained 33 newborns wi...

the aim of the present study was to compare the occurrence and duration of clinical mastitis in different seasons, stages of lactation period and parities in a holstein dairy farm in iran. a retrospective epidemiological survey from april 2005 to march 2008 was conducted on 884 clinical mastitis cases of 7437 lactations. data of each case including calendar-date of mastitis onset, days in milk ...

We revisit the Littlest Higgs model with T -parity, and discover a Z2 symmetry on collective symmetry. It is dubbed collective parity (C-parity). We demonstrate that T -parity is consistent with C-parity. We further investigate the origin of the collective symmetry in the context of composite Higgs and find a new path to the UV complete theory of the model. In addition, we demonstrate that T -p...

The question of how to make higher education more inclusive has been a central concern in South Africa and elsewhere over the past two decades. However, in South Africa there remains a disjuncture between policy aimed at promoting inclusivity and the experiences of students and staff in the higher education sector. In this article, the relationship between equity of access and equity of outcome...

Possible interference phenomena between parity doublets are discussed. In particular, the decay particle distributions of Z+ and A' produced in E +p capture and in x +p collision are analyzed. These distributions may have interference terms with odd parity. Experimental detection of such terms would constitute an unambiguous proof of the existence of parity doublets. It is further pointed out t...

Constraints for stop production in R-parity violating supersymmetry at Tevatron have been evaluated using the D0 limits for first generation leptoquarks. Such limits have been converted in constraints for the λ′131 R-parity violating coupling as a function of the stop mass for different Minimal Supersymmetric Standard Model (MSSM) scenarios and compared with Atomic Parity Violation and HERA res...