Results 31 to 40 of about 1,477,310 (345)

Sexual dimorphism and ancestral variation in the pectoral and pelvic girdles of modern humans

open access: yesHomo, 2023
Discussions of the evolution of sexual dimorphism in torso shape and the pectoral region assume that this dimorphism exists independently of body size.
Daphne R. Hudson, John H. Langdon
doaj   +1 more source

Greening a lost world: Paleoartistic investigations of the early Pleistocene vegetation landscape in the first Europeans' homeland

open access: yesQuaternary Science Advances
The scarcity of pictorial reconstructions focusing on Quaternary flora and vegetation prompts a reevaluation of traditional zoocentrism in future paleoartistic research.
José Carrión   +7 more
doaj   +1 more source

Long-term patterns of body mass and stature evolution within the hominin lineage [PDF]

open access: yesRoyal Society Open Science, 2017
Body size is a central determinant of a species' biology and adaptive strategy, but the number of reliable estimates of hominin body mass and stature have been insufficient to determine long-term patterns and subtle interactions in these size components ...
Manuel Will   +2 more
doaj   +1 more source

A theoretical study for the effect of polarity, steric energy and energy levels for HOMO and LUMO orbitals on the rate of addition of methyl radical to some monosubstituted Alkenes. [PDF]

open access: yesKirkuk Journal of Science, 2008
In this work The factors affecting the rate of addition of methyl radical to a number of monosubstitued Alkenes have been studied using quantum mechanical calculations.
Mostafa R.Aeyd
doaj   +1 more source

Homo heidelbergensis: The Tool to Our Success [PDF]

open access: yes, 2016
Homo heidelbergensis, a physiological variant of the species Homo sapien, is an extinct species that existed in both Europe and parts of Asia from 700,000 years ago to roughly 300,000 years ago (carbon dating). This “subspecies” of Homo sapiens, as it is
Burkard, Alexander
core   +1 more source

Imaging of High‐Risk Neuroblastoma: Recommendations From SIOPEN Radiology and Nuclear Medicine Specialty Committees

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij   +11 more
wiley   +1 more source

Preparation, Full Characterization and Theoretical Studies for New Herniarin derivatives [PDF]

open access: yesEngineering and Technology Journal, 2017
Novel Herniarin compounds were prepared and identified by UV–VIS, FTIR, NMR spectra. Theoretical Studies and molecular structure with optimized geometry were done by utilizing Density functional theory for the prepared ...
K.F. AL-Azawi
doaj   +1 more source

Does Koopmans’ Paradigm for 1-Electron Oxidation Always Hold? Breakdown of IP/E\u3csub\u3eox\u3c/sub\u3e Relationship for \u3cem\u3ep\u3c/em\u3e-Hydroquinone Ethers and the Role of Methoxy Group Rotation [PDF]

open access: yes, 2016
Koopmans’ paradigm states that electron loss occurs from HOMO, thus forming the basis for the observed linear relationships between HOMO/IP, HOMO/Eox, and IP/Eox.
Boddeda, Anitha   +3 more
core   +1 more source

Filling the gap. Human cranial remains from Gombore II (Melka Kunture, Ethiopia; ca. 850 ka) and the origin of Homo heidelbergensis [PDF]

open access: yes, 2016
African archaic humans dated to around 1,0 Ma share morphological affinities with Homo ergaster and appear distinct in cranio-dental morphology from those of the Middle Pleistocene that are referred to Homo heidelbergensis.
DI VINCENZO, FABIO   +4 more
core   +1 more source

Effects of Cancer Treatment on Somatosensory and Nociceptive Processing in Children and Adolescents: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Chemotherapy‐induced peripheral neuropathy remains a major complication in pediatric cancer, with disrupted somatosensory and nociceptive processing being a key aspect. This review synthesizes empirical studies on alterations in somatosensory and nociceptive processing in children and adolescents with cancer.
Julia Schweiger   +4 more
wiley   +1 more source

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