Results 91 to 100 of about 1,459,225 (349)

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

open access: yesAdvanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge   +8 more
wiley   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Parental unemployment and children's school performance [PDF]

open access: yes
This study investigates the effect of parental unemployment on children’s school performance. We use individual level data for all children completing lower secondary school in Sweden in 1990 directly moving on to three years of upper secondary school ...
Öster, Anna
core  

Expanding Access and Increasing Student Learning in Post-Primary Education in Developing Countries: A Review of the Evidence [PDF]

open access: yes, 2013
Effective, evidence-based policies on post-primary education are of vital importance as many developing countries start to the see a bulge in secondary and postsecondary enrollment, the product of the achievement of near-universal access to primary ...
Abhijit Banerjee   +3 more
core  

Did Teachers’ Race and Verbal Ability Matter in the 1960’s? Coleman Revisited [PDF]

open access: yes, 1993
Our paper reanalyzes data from the classic 1966 study Equality of Educational Opportunity, or Coleman Report. It addresses whether teacher characteristics, including race and verbal ability, influenced synthetic gain scores of students (mean test ...
Brewer, Dominic J, Ehrenberg, Ronald G
core   +2 more sources

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

open access: yesAdvanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi   +5 more
wiley   +1 more source

Reading profiles in secondary school: concurrent language and cognitive abilities, and retrospective and prospective reading skills

open access: yesFrontiers in Psychology
IntroductionWe examined the concurrent language and cognitive abilities in a group of Swedish students with different reading profiles in secondary school, and the retrospective (primary school) and prospective (upper-secondary school) reading skills of ...
Christian Waldmann, Maria Levlin
doaj   +1 more source

University education and income – does prior achievement matter? [PDF]

open access: yes
The purpose of this study is to find out if the income premium from university entrance differs with respect to prior achievement as measured by previous grades.
Wikström, Christina, Wikström, Magnus
core   +1 more source

Anomalous Pressure‐Temperature Ultrahigh Sensitivities in Atomically Engineered Carbonitride MXenes for Multifunctional Wearable Human–Machine Interfaces: Joint Computational–Experimental Elucidations

open access: yesAdvanced Functional Materials, EarlyView.
Atomically engineered layered 2D Ti3CNTz carbonitride MXene exhibits ultrahigh heat and pressure sensitivity, enabling dual‐mode sensors with 300%–400% performance enhancement and durability for real‐time health‐monitoring interface devices. Precise nitrogen incorporation (e.g., Ti3C1.8N0.2Tz) boosts conductivity, enhancing temperature response, while ...
Debananda Mohapatra   +12 more
wiley   +1 more source

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