Results 31 to 40 of about 43,817 (188)

Determination of Cell Permeabilization and Beta-Galactosidase Extraction from Aspergillus oryzae CCT 0977 Grown in Cheese Whey

open access: yesInternational Journal of Chemical Engineering, 2018
Aspergillus oryzae grown in cheese whey has the ability to produce beta-galactosidase. The objective of this work was to define the parameters for the determination of cell permeabilization and extraction of the enzyme from Aspergillus oryzae CCT 0977 ...
Caroline dos Santos Viana   +3 more
doaj   +1 more source

The Pythagoras number and the $u$-invariant of Laurent series fields in several variables

open access: yes, 2015
We show that every sum of squares in the three-variable Laurent series field $\mathbb{R}((x,y,z))$ is a sum of 4 squares, as was conjectured in a paper of Choi, Dai, Lam and Reznick in the 1980's.
Hu, Yong
core   +1 more source

Astigmatic changes after Descemet membrane endothelial keratoplasty (DMEK) in decompensated penetrating keratoplasty grafts

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To evaluate the surgery‐induced changes of astigmatism after Descemet membrane endothelial keratoplasty (DMEK) in eyes with failed previous penetrating keratoplasty (PK). Design Retrospective, interventional cohort study based on prospective DMEK database.
Florian Thomas Steinberg   +6 more
wiley   +1 more source

The Computing of Pythagoras Triples in Symbolic 2-Plithogenic Rings [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
This paper is dedicated to finding a general algorithm for generating different solutions for Pythagoras' non-linear Diophantine equation in four variables 𝑥 2 + 𝑦 2 = 𝑧 2 in symbolic 2-plithogenic rings, which are known as Pythagoras triples.
Abuobida Mohammed A. Alfahal   +3 more
doaj  

From Everyman to Hamlet: A Distant Reading

open access: yesRenaissance Studies, EarlyView.
Abstract The sixteenth century sees English drama move from Everyman to Hamlet: from religious to secular subject matter and from personified abstractions to characters bearing proper names. Most modern scholarship has explained this transformation in terms originating in the work of Jacob Burckhardt: concern with religion and a taste for ...
Vladimir Brljak
wiley   +1 more source

Table of Contents Vol 45, No 1 (2024)

open access: yesPythagoras
This Table of Contents reflects the print compilation of peer-reviewed articles published. Each article listed was originally published online under the journal’s open access model and remains individually accessible and citable.
Editorial Office
doaj   +1 more source

PROFIL PEMAHAMAN KONSEP TEOREMA PYTHAGORAS SISWA BERDASARKAN PERBEDAAN GAYA KOGNITIF FIELD INDEPENDENT DAN FIELD

open access: yesKalamatika, 2018
This research is a descriptive qualitative approach which aims to describe profile of understanding of pythagoras theorem concept of students based on the difference of field independent and dependent cognitive style.
Nurafni Nurafni   +2 more
doaj   +1 more source

Whitehead and Pythagoras [PDF]

open access: yes, 2006
While the appeal of scientific materialism has been weakened by developments in theoretical physics, chemistry and biology, Pythagoreanism still attracts the allegiance of leading scientists and mathematicians.
Gare, Arran
core  

Spacetime and Euclidean Geometry

open access: yes, 2004
Using only the principle of relativity and Euclidean geometry we show in this pedagogical article that the square of proper time or length in a two-dimensional spacetime diagram is proportional to the Euclidean area of the corresponding causal domain. We
D.E. Liebscher   +4 more
core   +3 more sources

Carbonate sedimentology: An evolved discipline

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley   +1 more source

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