Results 11 to 20 of about 4,291,345 (302)

Modified bacterial reaction centers [PDF]

open access: yes, 1991
Pigments of borohydride-treated reaction centers of Rhodobacter sphaeroides R 26 and Rhodopseudomonas viridis were analyzed by HPLC with polychromatic detection. In both species, pigment composition and contents were unchanged.
A. Müller   +44 more
core   +1 more source

Centered pyramids [PDF]

open access: yesIEEE Transactions on Image Processing, 1999
Quadtree-like pyramids have the advantage of re-suiting in a multiresolution representation where each pyramid node has four unambiguous parents. Such a centered topology guarantees a clearly defined up-projection of labels. This concept has been successfully and extensively used in applications of contour detection, object recognition and segmentation.
P, Brigger   +3 more
openaire   +2 more sources

Treatment of Rotator Cuff Tears with platelet rich plasma: a prospective study with 2 year follow‐up

open access: yesBMC Musculoskeletal Disorders, 2021
Background Surgical treatment of full-thickness rotator cuff (RC) tears is associated with generally good results. There is no consensus regarding treatment of partial thickness tears that fail conservative treatment.
Chadwick C Prodromos   +5 more
doaj   +1 more source

Variability of extracorporeal cardiopulmonary resuscitation utilization for refractory adult out-of-hospital cardiac arrest: an international survey study. [PDF]

open access: yes, 2018
Objective: A growing interest in extracorporeal cardiopulmonary resuscitation (ECPR) as a rescue strategy for refractory adult out-of-hospital cardiac arrest (OHCA) currently exists.
Benjamin S. Abella   +16 more
core   +2 more sources

Providing Open-Access Know How for Directors of Quantitative and Mathematics Support Centers

open access: yesNumeracy, 2017
The purpose of this editorial is to introduce the quantitative literacy community to the newly published A Handbook for Directors of Quantitative and Mathematics Centers.
Michael Schuckers   +2 more
doaj   +1 more source

NV-centers in Nanodiamonds: How good they are [PDF]

open access: yes, 2017
This paper presents a method for determination of the size distribution for diamond nanocrystals containing luminescent nitrogen-vacancy (NV) centers using the luminescence intensity only.
Aman, Haroon, Plakhotnik, Taras
core   +2 more sources

Application of global optimization in data clustering analisys

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
On the basis of global optimization methods in the system of computer mathematics «Matlab» algorithms of clear and fuzzy data clustering had developed to determine the parameters of prototypes of clusters.
Boris Belashev, Konstantin Dolgy
doaj   +1 more source

Energy Saving In Data Centers [PDF]

open access: yes, 2018
Globally CO2 emissions attributable to Information Technology are on par with those resulting from aviation. Recent growth in cloud service demand has elevated energy efficiency of data centers to a critical area within green computing.
Bein, Wolfgang W.
core   +3 more sources

Measuring training effectiveness of laboratory biosafety program offered at African Center for Integrated Laboratory Training in 22 President’s Emergency Plan for AIDS Relief supported countries (2008–2014)

open access: yesTropical Medicine and Health, 2023
Introduction The African Center for Integrated Laboratory Training (ACILT) in Johannesburg, South Africa offered a laboratory biosafety program to improve laboratory biosafety practices in 22 President’s Emergency Plan for AIDS Relief (PEPFAR) supported ...
Ritu Shrivastava   +12 more
doaj   +1 more source

Rational Involutions and an Application to Planar Systems of ODE

open access: yesMathematics
An involution refers to a function that acts as its own inverse. In this paper, our focus lies on exploring two-dimensional involutive maps defined by rational functions.
Ivan Mastev   +2 more
doaj   +1 more source

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