Results 91 to 100 of about 83,600 (300)

Analysis of airborne pollen fall in Canakkale, Turkey

open access: yes, 2005
Airborne pollen in the State of Canakkale was determined during 2000-2001 using two Durham samplers. The samplers were placed 15 m above the ground on the rooftops of the city hospital and of the meteorological station situated alongside the straits of Dardanelle. By the end of the year averages of pollen counts from the 2 samplers were calculated.
Çelik, Ali   +3 more
openaire   +6 more sources

Differential pollen dispersion and the interpretation of pollen diagrams. With a contribution to the interpretation of the elm fall

open access: yesDanmarks Geologiske Undersøgelse II. Række, 1965
Pollen grains are liberated into the air in vast quantities. They are carried by air movements to the stigmas of the flowers, or eventually deposited on the ground and on lake surfaces. This transfer is a complex physical process, which can only be understood from a detailed knowledge of how and when pollen grains are released into the air, how they ...
openaire   +2 more sources

The collision of feminisms, sexuality, and trafficking in persons in the Caribbean—A place for Kempadoo

open access: yesFeminist Anthropology, EarlyView.
Abstract The existence and development of feminist scholarship and practice have been revisited by feminist anthropologists and sociologists exploring it among the gendered cultural and historical dynamics of the Caribbean. Feminist Caribbeanists’ pioneering efforts that fit within this theoretical family have challenged the Global North status quo to ...
Cherisse Francis
wiley   +1 more source

Do honey bee (Apis mellifera) foragers recruit their nestmates to native forbs in reconstructed prairie habitats?

open access: yesPLoS ONE, 2020
Honey bee (Apis mellifera) colonies are valued for the pollination services that they provide. However, colony mortality has increased to unsustainable levels in some countries, including the United States.
Morgan K Carr-Markell   +4 more
doaj   +1 more source

User‐Relevant Climate Indices and Associated Uncertainties From Transient Convection‐Permitting Climate Model Projections

open access: yesInternational Journal of Climatology, EarlyView.
A transient ensemble of convection‐permitting climate simulations is used to compute bias‐corrected user‐relevant climate indices for Germany under recent and future climate conditions, both considering high spatial resolution and uncertainty estimations. For high temperature indices, a clear increase is observed, for example, for hot days and tropical
Joaquim G. Pinto   +6 more
wiley   +1 more source

A study on pollen characteristics of bisexual and functionally male flowers in pomegranate [PDF]

open access: yesGuoshu xuebao
[Objective] Pollen is the genetic carrier of the male parent in plant sexual reproduction. Pollen germination on the stigma of female flower and fertilization is the prerequisite for successful reproduction for plants.
DUAN Shuyun   +8 more
doaj   +1 more source

Science for gifted children in grade four. [PDF]

open access: yes, 1959
Thesis (Ed.M.)--Boston ...
Flood, Donna Louise   +3 more
core   +1 more source

Holocene sea‐level and environmental changes on the Isle of Mull, Scotland

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Sea‐level and coastal changes are reconstructed on the Isle of Mull, western Scotland, from 10 988 to 10 507 cal BP to the present. This research has produced the first SLIP for the Isle of Mull. A multiproxy approach including pollen, spore, foraminifera and diatom analyses reveals palaeoenvironmental changes from two coastal sites.
Katherine A. Selby   +6 more
wiley   +1 more source

Sporopollenin, the least known yet toughest natural biopolymer [PDF]

open access: yes, 2015
© 2015 Mackenzie, Boa, Diego-Taboada, Atkin and Sathyapalan. Sporopollenin is highly cross-linked polymer composed of carbon, hydrogen, and oxygen that is extraordinarily stable and has been found chemically intact in sedimentary rocks some 500 million ...
Atkin, Stephen L.   +5 more
core   +2 more sources

Holocene palaeoenvironmental reconstruction of sea level, coastal and vegetation changes along the southern Solway Firth, United Kingdom

open access: yesJournal of Quaternary Science, EarlyView.
Abstract Holocene relative sea level (RSL) changes were reconstructed from four sites along the less‐studied southern Solway Firth. A multiproxy approach, including lithostratigraphical and biostratigraphical analyses, combined with radiocarbon dating, produced ten sea level index points (SLIPs).
Dayang Siti Maryam Binti Mohd Hanan   +3 more
wiley   +1 more source

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