18 research outputs found
Characteristic Lie Algebra and Classification of Semi-Discrete Models
Characteristic Lie algebras of semi-discrete chains are studied. The attempt
to adopt this notion to the classification of Darboux integrable chains has
been undertaken.Comment: 33 pages, corrected typos, submitted to the Proceedings of the
workshop "Nonlinear Physics: Theory and Experiment IV", Theoretical
Mathematical Physic
On Some Algebraic Properties of Semi-Discrete Hyperbolic Type Equations
Nonlinear semi-discrete equations of the form t_x(n+1)=f(t(n), t(n+1),
t_x(n)) are studied. An adequate algebraic formulation of the Darboux
integrability is discussed and the attempt to adopt this notion to the
classification of Darboux integrable chains has been undertaken.Comment: 18 page
The Klein-Gordon Equation and Differential Substitutions of the Form
We present the complete classification of equations of the form
and the Klein-Gordon equations connected
with one another by differential substitutions such that
over the ring of complex-valued variables
Bibliometric Analysis of Publisher and Journal Instructions to Authors on Generative-AI in Academic and Scientific Publishing
We aim to determine the extent and content of guidance for authors regarding
the use of generative-AI (GAI), Generative Pretrained models (GPTs) and Large
Language Models (LLMs) powered tools among the top 100 academic publishers and
journals in science. The websites of these publishers and journals were
screened from between 19th and 20th May 2023. Among the largest 100 publishers,
17% provided guidance on the use of GAI, of which 12 (70.6%) were among the top
25 publishers. Among the top 100 journals, 70% have provided guidance on GAI.
Of those with guidance, 94.1% of publishers and 95.7% of journals prohibited
the inclusion of GAI as an author. Four journals (5.7%) explicitly prohibit the
use of GAI in the generation of a manuscript, while 3 (17.6%) publishers and 15
(21.4%) journals indicated their guidance exclusively applies to the writing
process. When disclosing the use of GAI, 42.8% of publishers and 44.3% of
journals included specific disclosure criteria. There was variability in
guidance of where to disclose the use of GAI, including in the methods,
acknowledgments, cover letter, or a new section. There was also variability in
how to access GAI guidance and the linking of journal and publisher
instructions to authors. There is a lack of guidance by some top publishers and
journals on the use of GAI by authors. Among those publishers and journals that
provide guidance, there is substantial heterogeneity in the allowable uses of
GAI and in how it should be disclosed, with this heterogeneity persisting among
affiliated publishers and journals in some instances. The lack of
standardization burdens authors and threatens to limit the effectiveness of
these regulations. There is a need for standardized guidelines in order to
protect the integrity of scientific output as GAI continues to grow in
popularity.Comment: Pages 16, 1 figure, 2 table
Uniqueness of the Kadomtsev-Petviashvili and Boussinesq Equations
The Kadomtsev-Petviashvili and Boussinesq equations (u(xxx) - 6uu(x))(x) - u(tx) +/- u(yy) = 0, (u(xxx) - 6uu(x))(x) + u(xx) +/- u(tt) = 0, are completely integrable, and in particular, they possess the three-soliton solution. This article aims to expose a uniqueness property of the Kadomtsev-Petviashvili (KP) and Boussinesq equations in the integrability theory. It is shown that the Kadomtsev-Petviashvili and Boussinesq equations and their dimensional reductions are the only integrable equations among a class of generalized Kadomtsev-Petviashvili and Boussinesq equations (u(x1x1x1) - 6uu(x1))(x1) + Sigma(M)(i,j)=1a(ij)u(xixj) = 0, where the aij's are arbitrary constants and M is an arbitrary natural number, if the existence of the three-soliton solution is required
The Klein-Gordon Equation and Differential Substitutions of the Form v = phi(u, u(x), u(y))
We present the complete classification of equations of the form u(xy) = f(u, u(x,) u(y)) and the Klein-Gordon equations v(xy) = F (v) connected with one another by differential substitutions v = phi(u, u(x,) u(y)) such that phi(ux)phi(uy) not equal 0 over the ring of complex-valued variables
How Does Food Addiction Influence Dietary Intake Profile?
This study aimed to investigate whether there was any difference in eating pattern, abnormal eating behaviour, obesity and the number of food addiction symptoms according to food addiction presence. A total sample of 851 healthy subjects living in Ankara (n = 360 male, n = 491 female) aged 19–65 years were included in this cross-sectional survey. Data on demographic information, 24-hour dietary recalls, Yale Food Addiction Scale (YFAS), Eating Attitudes Test-26 (EAT-26), and anthropometric measurements were collected through face-to-face interviews. Overall, 11.4% of participants were identified as “food addicted” (F: 13.0%; M: 9.2%). Subjects meeting criteria for ‘food addiction' had higher body mass index (35.1% were obese and 3.1% were underweight), compared to subjects without food addiction (13.1% were obese and 10.2% were underweight) (p<0.05). Abnormal eating attitudes estimated with EAT-26 were determined as 45.5% in males, 37.5% in females and 40.2% in total, among subjects with food addiction. Daily energy, protein and fat intakes were significantly higher in food addicted females, compared to non-addicted females (p<0.05). Participants with food addiction reported significantly more problems with foods, which contain high amounts of fat and sugar, compared to the participants without food addiction. Food addiction behaviour should be considered as a part of efforts towards reducing food related problems involving obesity.PubMedWoSScopu
Anthropometric measurements categorized by presence of food addiction by gender.
<p>Anthropometric measurements categorized by presence of food addiction by gender.</p