Elasmobranch specimens of lamnid and sphyrnid captured in 1999 in the State of Santa Catarina, Brazil, were parasitized with homeacanthoid trypanorhynch cestodes: Isurus oxyrinchus Rafinesque, 1810 with Nybelinia lingualis (Cuvier, 1817) Dollfus, 1929; Sphyrna zygaena (Linnaeus, 1758) with Heteronybelinia rougetcampanae (Dollfus, 1960) Palm, 1999. New details of internal morphology and/or scole...

Using a mixed-methods approach, including data from a national sample of 1851 employees and 10 in-depth interviews with various categories of employees, this paper examines what factors influence different atti-tudes towards industrial action among Swedish employees. It adds to previous research by showing that social class has a strong influence on attitudes, both in terms of its effects on wa...

Organizational commitment and employee job satisfaction are presented in the literature as key work atti tudes leading to higher organizational performance. This paper examines the extent to which transformational leadership and organizational culture influence employees' attitudinal outcomes, as well as the effect of job satisfaction on organizational commitment. Data for the study was collect...

Parthenogenesis has been documented in all major jawed vertebrate lineages except mammals and cartilaginous fishes (class Chondrichthyes: sharks, batoids and chimeras). Reports of captive female sharks giving birth despite being held in the extended absence of males have generally been ascribed to prior matings coupled with long-term sperm storage by the females. Here, we provide the first gene...

Sexually dimorphic head shape is common in vertebrates from teleosts to mammals. Herein we document that cephalic sexual dimorphism is also found in the cartilaginous fishes (Chondrichthyes). Male bonnethead sharks develop a prominent bulge along the anterior margin of the cephalofoil at the onset of sexual maturity. This contrasts with the uniformly rounded anterior margin of adult females and...