Results 31 to 40 of about 23,127 (239)

Tecnología lítica en la transición de cazadores recolectores a sociedades agropastoriles en la porción meridional de los Andes Centro Sur

open access: yesEstudios Atacameños
En este trabajo se abordan las transformaciones en la tecnología lítica producidas durante la transición de grupos cazadores recolectores a sociedades agropastoriles en la porción meridional de los Andes Centro Sur.
Salomón Hocsman
doaj   +1 more source

Mesolithic Occupations During the Boreal Climatic Fluctuations at La Baume de Monthiver (Var, France)

open access: yesOpen Archaeology, 2023
The Mesolithic technology in Western Europe depicts the last cultural expressions and adaptations of hunter-gatherers before the adoption of Neolithic agro-pastoral practices.
Ricci Giulia   +7 more
doaj   +1 more source

Transition from Swifterbant to Funnelbeaker: A Bayesian Chronological Model

open access: yesOpen Archaeology, 2021
The transition from the late Swifterbant culture to the first appearance of the Funnelbeaker Westgroup raises numerous questions, from cultural discontinuities to gradual transitions.
Menne Julia, Brunner Mirco
doaj   +1 more source

Media for Movement and Making the World: Exploring Materials and Identity in the Mesolithic of the Northern Irish Sea Basin

open access: yesInternet Archaeology, 2007
This paper provides an account of the author's current doctoral research into the Mesolithic period in the northern Irish Sea basin and western Scotland.
Hannah Cobb
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Long‐Term Neurologic Exam Findings in People Diagnosed and Treated During Acute HIV Infection

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Evaluate clinical and laboratory correlates of abnormal neurologic exam findings after acute HIV infection (AHI). Methods Participants from the RV254/SEARCH 010 cohort in Bangkok underwent standardized neurologic examinations at Weeks 0 (AHI), 12, 96, and 288 following antiretroviral therapy (ART).
Kathryn B. Holroyd   +118 more
wiley   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

open access: yesArthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier   +12 more
wiley   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

open access: yesAdvanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb   +3 more
wiley   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha   +11 more
wiley   +1 more source

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