Theoretically, dispersers should target the habitat where prospects for fitness will be highest. Aiming for a habitat similar to the natal area (natal habitat-biased dispersal) has been hypothesized as a probable rule of thumb for dispersers, but has received very little empirical support to date. We investigated similarities between natal and post-dispersal settlement sites with radio-collared...

background: since there has been no published report on the impact of permanent canines in shiraz population, this study was conducted to investigate the prevalence and the location of the impacted permanent canines in patients referred to the department of radiology of shiraz dental school in 2012. materials and methods: this was an analytic cross-sectional study on 1012 panoramic radiographs....

a case of a compound odontoma which caused delayed eruption of right maxillary central incisor in a ten year old girl is presented with clinical and radiographic findings. the patient presented with complaint of a hard painless swelling in the right anterior region of the maxilla and absence of right maxillary central incisor. after clinical examination, periapical and occlusal radiographs of t...

glucose thlirapy is call(ed forIt' rar l ese \IIIvt'lee these measures fail, abortioni hias to he iln(luce(l. Ana.stlhsia is e1-r (lamngerous in these cases. (Gas and oxygen sihouldl be chloseln. Results of Treabtne ii t .-Ou)t of 790 patientIs admitted to III \ wards at the Ri)va Maternity HIospital from ulgust, 1988, till tI e end of 198-, tliirteen] cases were admitte(d as hlypercmesis. Of t...

Natal dispersal outcomes are an interplay between environmental conditions and individual phenotypes. Peripheral, isolated populations may experience altered environmental conditions and natal dispersal patterns that differ from populations in contiguous landscapes. We document nonphilopatric, sex-biased natal dispersal in an endangered small mammal, the Mt. Graham red squirrel (Tamiasciurus hu...

We report progress in using the isotopic composition and concentration of Pb in the dentine and enamel of deciduous teeth to provide a high resolution time frame of exposure to Pb during fetal development and early childhood. Isotope measurements (total Pb and (208)Pb/(206)Pb, (207)Pb/(206)Pb ratios) were acquired by laser ablation inductively coupled mass spectrometry at contiguous 100 micron ...

An approach for introducing twists in pyrene-fused azaacenes is reported. Depending on the volume and the rigidity of the silyl groups, different-sized twist angles, which oscillate between 4° and 24°, are induced along the longitudinal conjugated backbone.

Bicyclo[2.2.2]octadiene-fused (BCOD-fused) bis(benzoborondipyrromethene)s (bisbenzoBODIPYs) bearing electron-withdrawing groups such as fluorine and cyano groups were prepared either by incorporating tetrafluoroisoindole moieties into BODIPY chromophores or by introducing cyano or ethoxycarbonyl groups at the 3,5-positions. The BCOD-fused bisbenzoBODIPYs were quantitatively converted to the cor...

Natal dispersal behavior can vary considerably among individuals, but the causes of intraspecific plasticity in dispersal are poorly understood. We tested six hypotheses about social and environmental conditions that might influence natal dispersal of males in the cooperatively breeding Red-cockaded Woodpecker (Picoides borealis). Further, we examined whether variation in dispersal behavior is ...