Results 131 to 140 of about 455,668 (258)

The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley   +1 more source

Description of large, well‐preserved Enchodus specimens from the Bearpaw Formation of Alberta, Canada

open access: yesThe Anatomical Record, EarlyView.
Abstract Fishes of the genus Enchodus were abundant and cosmopolitan in the Late Cretaceous, but are primarily known from isolated remains in Canada. Four well‐preserved fish skulls were recovered in recent years from ammolite mines sampling the Bearpaw Formation of Southern Alberta, and are here referred to Enchodus petrosus Cope, 1874.
Luke E. Nelson   +2 more
wiley   +1 more source

Historical birth records from 1896 to 1944 from the Basel maternity hospital, Switzerland, reveal significant obstetric selection pressures

open access: yesThe Anatomical Record, EarlyView.
Abstract Maternal and neonatal morbidity and mortality have declined dramatically during the last century. Historical data are therefore important sources to study the evolutionary selection pressures related to childbirth and how they have fluctuated over time.
Mirella Woodert   +7 more
wiley   +1 more source

Documento final del II Congreso Continental Latinoamericano de Vocaciones

open access: yesSeminarios sobre los Ministerios en la Iglesia, 2012
II Congreso Continental Latinoamericano de Vocaciones
doaj   +1 more source

Inteligencia emocional y expresión del movimiento en la danza tradicional por estudiantes universitarios del II Semestre de la Universidad Continental 2017

open access: yes, 2018
La presente investigación responde a la siguiente interrogante: ¿Qué relación existe entre la inteligencia emocional y la expresión del movimiento en la danza tradicional por estudiantes universitarios del II semestre de la Universidad Continental 2017 ...
Corilla Pérez, Renán   +1 more
core  

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

open access: yesThe Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

Recuperación de solubles de cobre mediante el control de la crisocola durante el proceso de flotación en la actividad minera

open access: yesMinería y Geología
La presencia de minerales como la crisocola en las menas dificulta la eficiente extracción del cobre soluble. En este trabajo se analizaron muestras de minerales mixtos de cobre, variando las dosis de reactivos en pruebas de flotación para maximizar la ...
Renzo Alejandro Diaz-Privat   +3 more
doaj  

"State Redemption of the Continental Dollar, 1779-1790" [PDF]

open access: yes
Remittances of Continental Dollars to the national treasury from each state by year from 1779 through 1789 are used to determine state compliance with congressional resolutions regarding Continental-Dollar redemption.
Farley Grubb
core  

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

open access: yesThe Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit   +6 more
wiley   +1 more source

Distinct chalcophile-element inheritance from subducted continental crust in metasomatized mantle. [PDF]

open access: yesSci Adv
Wang Z   +13 more
europepmc   +1 more source

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