Results 61 to 70 of about 4,246,375 (338)

Simulated emergence of cyclic sexual-asexual reproduction

, 2001
Motivated by the cyclic pattern of reproductive regimes observed in some species of green flies (``{\it aphids}''), we simulate the evolution of a population enduring harsh seasonal conditions for survival.
A. Racco, Baake, Blackman, J.S. Sá Martins, Maynard Smith, Moss de Oliveira, Moss de Oliveira, Pekalski, Penna, Penna, Sá Martins, Sá Martins, Sá Martins, Sá Martins, Örçal   +14 more
core   +1 more source

What is traumatic birth? A concept analysis and literature review [PDF]

, 2016
Background: A number of women experience childbirth as traumatic. This experience can have enduring and potentially lifelong effects on both mental and physical health, and have implications for the woman's relationship with her baby, partner and family.
Glover, Lesley, Greenfield, Mari, Jomeen, Julie   +2 more
core   +1 more source

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd, Melissa Taylor, Helen Fulbright, Bob Phillips   +3 more
wiley   +1 more source

Improved Outcomes for Older Children, Adolescents, and Young Adults With Neuroblastoma in the Post‐Immunotherapy Era: An Updated Report From the International Neuroblastoma Risk Group

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background We describe clinical and biologic characteristics of neuroblastoma in older children, adolescents, and young adults (OCAYA); describe survival outcomes in the post‐immunotherapy era; and identify if there is an age cut‐off that best discriminates outcomes.
Rebecca J. Deyell, Kavitha Srivatsa, Paola Angelini, Pei‐Chi Kao, Brady Payne, Arlene Naranjo, Sveva Castelli, Miho Kato, Miki Ohira, Ulriche Pöetschger, Yaël Mossé, Lucas Moreno, Meredith S. Irwin, Ramya Ramanujachar, Wendy B. London   +14 more
wiley   +1 more source

The adaptability of facultative parthenogenesis and ‘multiple embryos per eggcase’ as alternative reproductive strategies in Chondrichthyes

Royal Society Open Science
Chondrichthyans (sharks, rays and chimaera) are a fascinating case study through which to examine reproductive biology. While most vertebrate lineages have converged upon either placental viviparity or oviparity, chondrichthyans exhibit unparalleled ...
Joel Harrison Gayford
doaj   +1 more source

Isolation, culture and characterization of Arsenophonus symbionts from two insect species reveal loss of infectious transmission and extended host range

Frontiers in Microbiology, 2023
Vertically transmitted “Heritable” microbial symbionts represent an important component of the biology and ecology of invertebrates. These symbioses evolved originally from ones where infection/acquisition processes occurred within the environment ...
Pol Nadal-Jimenez, Steven R. Parratt, Stefanos Siozios, Gregory D. D. Hurst   +3 more
doaj   +1 more source

Life history of Monocystis parasites and genetic diversity of their hosts, the invasive Amynthas earthworms [PDF]

, 2016
Monocystis is a parasites in the phylum Apicomplexa that infects nearly 100% of earthworms; however, the parasites have low survivorship, low production of transmissible gametocysts, and seemingly lack schizogony.
Keller, Erin L.
core   +1 more source

Making the Co-operative School a Challenge Alternative: Social Reproduction Theory Revisited [PDF]

, 2017
While co-operative schools are different, there are different kinds of different schools. This essay examines the type of alternative co-operative schools are, using distinctions Philip A. Woods draws from Maori philosophy of education.
David Backer
core   +1 more source

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source

Egg retention and intrauterine embryonic development in Sceloporus aeneus (Reptilia: Phrynosomatidae): implications for the evolution of viviparity Retención de huevos y avance embrionario intrauterino en Sceloporus aeneus (Reptilia: Phrynosomatidae): implicaciones para la evolución de la viviparidad

Revista Mexicana de Biodiversidad, 2012
Egg retention (ER) and intrauterine embryonic development (IED) have been considered intermediate steps in the evolution from oviparity to viviparity. Sceloporus aeneus is an oviparous lizard that is closely related to the viviparous species (Sceloporus ...
Rodolfo García-Collazo, Maricela Villagrán-Santa Cruz, Eduardo Morales-Guillaumin, Rubi Nelsi Meza Lázaro, Fausto R. Méndez-de la Cruz   +4 more
doaj