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(replacement level fertility)
503 results
  • Perceptions of agrodiversity and seed-saving practices in the northern Andes of Ecuador. [Journal Article]
  • JEJ Ethnobiol Ethnomed 2019 Jul 15; 15(1):35
  • Montúfar R, Ayala M
  • CONCLUSIONS: Based on the timeline-mapping tool, we found that participants perceive an intergenerational loss of agrodiversity. Data derived from free listing determined that salient crops differ in each location of the study area, mostly due to geographic (altitude, climate), market factors, and crop management limitations. Responses from open-ended interview questions revealed that farmers discriminate conventional from non-conventional seeds using yield, adaptation to local conditions, pest tolerance, taste, and crop management as criteria. Analysis of free listing data determined that the most salient reported practices related to seed saving were soil fertility management, seed selection, safe seed storage, tilling and rowing, and weeding.This study contributes to raising awareness of intergenerational agrodiversity loss and replacement with modern crops. We found the relevance of crops and practices is subject to cultural and environmental context, and few agricultural practices are exclusively used for seed saving. Further, farmers clearly discriminate conventional from non-conventional seeds based on advantages and disadvantages, cultural motivation, and produce destination. The community-based participatory approach resulted in positive engagement from participants and promoted commitment from farmers to preserve agrodiversity and support practices at the community level.
  • Fertility and hormone preservation and restoration for female children and adolescents receiving gonadotoxic cancer treatments: A systematic review. [Journal Article]
  • JPJ Pediatr Surg 2019 Jan 22
  • Corkum KS, Rhee DS, … Lautz TB
  • CONCLUSIONS: Clinically accepted and experimental fertility preservation options such as OTC, oocyte cryopreservation, and ovarian transposition are available to females aged 20 years and younger who are at risk for premature ovarian insufficiency and infertility due to gonadotoxic treatments. There is a large cohort of pediatric-aged patients, with a wide variety of diagnoses and treatments, who have undergone fertility preservation. Currently, fertility and hormone restoration experience for patients who were 20- years of age or younger at the time of fertility preservation remains limited.
  • Cytoplasmic incompatibility management to support Incompatible Insect Technique against Aedes albopictus. [Journal Article]
  • PVParasit Vectors 2018 Dec 24; 11(Suppl 2):649
  • Moretti R, Marzo GA, … Calvitti M
  • CONCLUSIONS: In the case of bidirectional incompatibility patterns, the repeated release of incompatible males with small percentages of contaminant females could lead to population replacement in confined environments while it could be managed to target high efficiency and sustainability in wild-type suppression when systems are open to migration. This possibility is discussed based on various contexts and taking into consideration the possibility of integration with other control methods such as SIT and the use of larvicides.
  • Improving wellbeing and reducing future world population. [Journal Article]
  • PlosPLoS One 2018; 13(9):e0202851
  • Murdoch WW, Chu FI, … Wilber MQ
  • Almost 80% of the 4 billion projected increase in world population by 2100 comes from 37 Mid-African Countries (MACs), caused mostly by slow declines in Total Fertility Rate (TFR). Historically, TFR …
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