Results 31 to 40 of about 409,311 (312)

A Universal Stellar Initial Mass Function? A Critical Look at Variations

open access: yes, 2010
Few topics in astronomy initiate such vigorous discussion as whether or not the initial mass function (IMF) of stars is universal, or instead sensitive to the initial conditions of star formation.
Bochanski JJ   +5 more
core   +1 more source

Skeletal Muscle HSF1 Alleviates Age‐Associated Sarcopenia and Mitochondrial Function Decline via SIRT3‐PGC1α Axis

open access: yesAdvanced Science, EarlyView.
Aged HSF1 muscle‐specific knockout mice show deteriorated muscle atrophy and metabolic dysfunction, while active HSF1 overexpression improves muscle function via activating SIRT3 to deacetylate both PGC1α1 and PGC1α4, which boosts mitochondrial function and muscle hypertrophy in a fiber‐type specific manner, and induces FNDC5/Irisin for tissue ...
Jun Zhang   +18 more
wiley   +1 more source

GLOBAL FİNANSAL KRİZLER VE IMF EKSENLİ YAPILANMADA TÜRKİYE

open access: yesSosyal Ekonomik Araştırmalar Dergisi, 2015
1990’lı yılların son dönemecinden itibaren global piyasalarda devinimli bir şekilde şiddetini gösteren küreselleşme dalgaları oluşmaya başlamıştır. Bu Ekonomik küreselleşme evrelerindeki şiddetle ise endüstrileşme evrelerini henüz tamamlayan ülkelerde ...
Murat Turgut
doaj   +1 more source

IMF - metallicity: a tight local relation revealed by the CALIFA survey [PDF]

open access: yes, 2015
Variations in the stellar initial mass function (IMF) have been invoked to explain the spectroscopic and dynamical properties of early-type galaxies. However, no observations have yet been able to disentangle the physical driver. We analyse here a sample
Delgado, R. González   +15 more
core   +5 more sources

Olfactory‐to‐Entorhinal Network Dysrhythmias Drive Parkinson's Cognitive Impairment Through Frequency‐Specific Oscillatory Decoupling

open access: yesAdvanced Science, EarlyView.
Wang et al reveal that in the olfactory system, the selective impairment of gamma‐driven Barcode features underlying early olfactory deficits, while the selective impairment of theta‐driven Barcode features underlying later cognitive deficits, further establishing cross‐network gamma oscillations in the early stage as a biomarker of later cognitive ...
Shuaishuai Wang   +13 more
wiley   +1 more source

The observable prestellar phase of the IMF

open access: yes, 2011
The observed similarities between the mass function of prestellar cores (CMF) and the stellar initial mass function (IMF) have led to the suggestion that the IMF is already largely determined in the gas phase. However, theoretical arguments show that the
Nordlund, AAke, Padoan, Paolo
core   +1 more source

HMGB2–RAD21 Axis Promotes Fibro/Adipogenic Progenitor Proliferation and Regulates Fat Infiltration

open access: yesAdvanced Science, EarlyView.
This study constructed the first developmental atlas of embryonic skeletal muscle fibro/adipogenic progenitors (FAPs) and identified an HMGB2+ FAPs subpopulation that regulates FAP pool size and muscle homeostasis. HMGB2 directly targets the RAD21 promoter, and its knockout significantly reduces FAP numbers, thereby lowering the potential for ...
Xian Tong   +14 more
wiley   +1 more source

The Stellar Initial Mass Function in Early-Type Galaxies From Absorption Line Spectroscopy. II. Results

open access: yes, 2012
The spectral absorption lines in early-type galaxies contain a wealth of information regarding the detailed abundance pattern, star formation history, and stellar initial mass function (IMF) of the underlying stellar population.
Auger   +40 more
core   +1 more source

India–United States Agricultural Trade Under the America‐First Agenda

open access: yesAgribusiness, EarlyView.
ABSTRACT This article examines India–United States agricultural trade under the America‐First agenda, highlighting trade patterns, tariff structures, and potential impacts of United States trade policies. Total agricultural trade remains modest at $7 billion annually, with India imposing higher tariffs (average 39%) than the United States (5%).
Badri N. Gopalakrishnan   +2 more
wiley   +1 more source

The stellar and sub-stellar IMF of simple and composite populations

open access: yes, 2012
The current knowledge on the stellar IMF is documented. It appears to become top-heavy when the star-formation rate density surpasses about 0.1Msun/(yr pc^3) on a pc scale and it may become increasingly bottom-heavy with increasing metallicity and in ...
A Duquennoy   +344 more
core   +1 more source

Home - About - Disclaimer - Privacy