cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nodal solutions for Logarithmic weighted $N$-Laplacian problem with exponential nonlinearities
Creators: name: Dridi, Brahim
name: Jaidane, Rached
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this article, we study the following problem $$-{\rm div} (ω(x)|\nabla u|^{N-2} \nabla u) = λ f(x,u) \quad\mbox{ in }\quad B, \quad u=0 \quad\mbox{ on } \quad\partial B,$$ where $B$ is the unit ball of $\mathbb{R^{N}}$, $N\geq2$ and $ w(x)$ a singular weight of logarithm type. The reaction source $f(x,u)$ is a radial function with respect to $x$ and is subcritical or critical with respect to a maximal growth of exponential type. By using the constrained minimization in Nehari set coupled with the quantitative deformation lemma and degree theory, we prove the existence of nodal solutions.
description: arXiv admin note: substantial text overlap with arXiv:2206.10001
On Some New Variable Selection Methods for Multivariate Survival Data
Creators: name: Mahmoudi, Fatemeh
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Penalized Variable Selection
subject: Competing Risks Data
subject: Semi-competing Risks Data
subject: Multivariate Failure Time Data
subject: Lifetime Data Analysis
subject: Biostatistics

description: This dissertation proposes variable selection methods for reducing dimensionality in complex lifetime data for survival analysis. With the advent of big data, survival analysis often involves a large number of covariates, necessitating their identification. High-dimensional data, especially with increasing sample size, presents challenges in terms of variable selection. The dissertation focuses on simultaneous estimation and variable selection methods under various censored data types and survival models, examining their theoretical properties and performance in finite samples. The analysis of complex lifetime data encounters challenges stemming from different sources, including various types of censoring, diverse models, and multiple outcomes. Traditional survival analysis primarily deals with univariate survival data, focusing on a single event of interest. However, real-world applications frequently involve multiple event types with distinct underlying causes and risk factors. This research investigates three types of multiple events data: competing risks, semi-competing risks, and multivariate failure time data. For competing risks data, Chapter 2 considers interval-censored models. A penalized variable selection method is proposed, utilizing the LASSO, Adaptive LASSO, and broken adaptive ridge regression. The proposed method effectively selects important variables based on results of simulation studies. It is also successfully applied to a real-life HIV study dataset. In the context of semi-competing risks data, Chapter 3 explores an illness-death model with shared frailty. Parametric and semiparametric models are employed to examine the effects of covariates and conduct variable selection. The proposed method demonstrates good performance through simulation studies and analysis of colon cancer data. For multivariate failure time data, Chapter 4 introduces the sparse group broken adaptive ridge (SGBAR) penalty. This penalty facilitates variable selection at both the individual and group levels and is applied to interval-censored data. Extensive simulation studies confirm the good performance of the method, and the method is further validated using real-life data from the Aerobic Center Longitudinal Study (ACLS). In summary, this dissertation proposes new variable selection methods for complex lifetime data. It addresses challenges associated with competing risks, semi-competing risks, and multivariate failure time data. The proposed methods are supported by theoretical analysis, simulation studies, and real-life applications.
PROBLEMS OF EMPLOYEES IN SOFTWARE INDUSTRIES IN CHENNAI CITY
Creators: name: M. PRIYANGHAA
name: Dr. K. THAMIZHSELVAN
Publisher: name: Zenodo
Year: 2023
Subjects: Employees, Performance, Software Industries, Productivity, Issues, Health.

description: Abstract
For academic staff especially in software industries, it needs to be productive; they need to have stressful works and attached task. Employee perception of problems, such as health and work related issues, may impact performance at work, which could lead to a decrease in publications, a drop in quality, and a reduction in research funding. To learn how, or whether, the perceived decline is impacted by the stated issues, whether alone or in conjunction with motivation for work and job attitudes, few research have focused on productivity loss within academic personnel. Performance in software industries is very variable and is impacted by alterations to health and employment position, necessitating this type of design. Employees who encountered related to health or work environment issues also had greater degrees of motivation, job satisfaction, and organizational commitment, which were linked to lower levels of output loss. Employees in software industries with a combination of issues showed much fewer instances of productivity loss when they had strong levels of dedication and drive at work. In conclusion, work motivation, job satisfaction, and organizational commitment all have an impact on decreased productivity among academic employees. These factors appear to buffer, or moderate, the decline in productivity for this group of employees, in addition to health-related issues or issues with the workplace.
Some useful operators on differential forms in Galilean and Carrollian spacetimes
Creators: name: Fecko, Marián
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Differential forms on Lorentzian spacetimes is a well-established subject. On Galilean and Carrollian spacetimes it does not seem to be quite so. This may be due to the absence of Hodge star operator. There are, however, potentially useful analogs of Hodge star operator also on the last two spacetimes, namely intertwining operators between corresponding representations on forms. Their use could perhaps make differential forms as attractive tool for physics on Galilean and Carrollian spacetimes as forms on Lorentzian spacetimes definitely proved to be.
VersalDeformations - a package for computing versal deformations and local Hilbert schemes
Creators: name: Ilten, Nathan Owen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: We provide an overview of the Macaulay2 package VersalDeformations, which algorithmically computes versal deformations of isolated singularities, as well as local (multi)graded Hilbert schemes.
description: v2 minor revision
Effects of pregnancy and lactation on maternal bone status in mice artificially selected for larger skeletons
Creators: name: Tran, Vicki
Publisher: name: Science
Year: 2023
Subjects: subject: Longshanks
subject: Pregnancy
subject: Lactation
subject: Hormone
subject: Bone
subject: Physiology
subject: FOS: Biological sciences

description: Pregnancy and lactation are intensive physiological processes that require increased calcium demand from the maternal systems. This is mediated by changes to the maternal endocrine axes and may result in excessive bone resorption on the maternal skeleton. Pregnancy- and lactation-related changes in bone have yet to be investigated in a model with poorer bone quality and quantity. The Longshanks mouse (LS) is a mouse line selectively bred for increased tibia length. Although longer, the LS tibia is also weaker due to its altered microarchitecture of thinner and more widely spaced trabeculae. In this study, we sought to investigate the impacts of pregnancy and lactation on maternal bone microarchitecture using the LS as a model of a compromised skeletal phenotype with lower bone quality/quantity. Our study found that LS mice had increased bone quantity at postpartum and substantial decreases at mid-lactation when compared to Controls. The physiological response of increased bone postpartum thus depends on prepregnancy population characteristics and is possibly a mechanism to help protect maternal calcium reserves from excessive depletion. The differences in bone are induced by altered endocrine signaling in LS vs. CTL. The larger improvements in microarchitecture postpartum in the LS may be a result of increased OPG signalling, whereas bone resorption is likely increased in the LS during lactation by PTH and SOST action. This would allow increased mobilization of calcium stores and result in reduced maternal bone quantity/quality as seen in the LS mouse. Overall, this study demonstrated a possible protective response induced by pregnancy, resulting in increased bone volume postpartum, however lactational bone loss should be especially considered in populations with poor bone quality/quantity.
Peccei-Quinn extended gauge-mediation model with vector-like matter
Creators: name: Nakayama, Kazunori
name: Yokozaki, Norimi
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct a gauge-mediated SUSY breaking model with vector-like matters combined with the Peccei-Quinn mechanism to solve the strong CP problem. The Peccei-Quinn symmetry plays an essential role for generating sizable masses for the vector-like matters and the $μ$-term without introducing dangerous CP angle. The model naturally explains both the 125GeV Higgs mass and the muon anomalous magnetic moment. The stabilization of the Peccei-Quinn scalar and the cosmology of the saxion and axino are also discussed.
description: 33 pages, 5 figures; version to be published (JHEP)
Measurement noise susceptibility in quantum estimation
Creators: name: Kurdzialek, Stanislaw
name: Demkowicz-Dobrzanski, Rafal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Fisher Information is a key notion in the whole field of quantum metrology. It allows for a direct quantification of maximal achievable precision of estimation of parameters encoded in quantum states using the most general quantum measurement. It fails, however, to quantify the robustness of quantum estimation schemes against measurement imperfections, which are always present in any practical implementations. Here, we introduce a new concept of Fisher Information Measurement Noise Susceptibility that quantifies the potential loss of Fisher Information due to small measurement disturbance. We derive an explicit formula for the quantity, and demonstrate its usefulness in analysis of paradigmatic quantum estimation schemes, including interferometry and super-resolution optical imaging.
description: We added Appendix B in which we discuss many different practical noise models, and Appendix F in which we examine the effect of photon correlations on FI MeNoS in super-resolution imaging
Effectiveness of Immune Checkpoint Inhibitor Therapy on Bone Metastases in Non-Small-Cell Lung Cancer
Creators: name: Abbott, Annalise Georgia
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Immunotherapy
subject: Lung Cancer
subject: Metastatic Bone Disease
subject: Medicine and Surgery

description: Background: Bone metastases (BoMs) are prevalent in patients with metastatic non-small- cell lung cancer (NSCLC) and frequently result in intractable pain, pathologic fracture, and immobility. Patients who respond to immune checkpoint inhibitors (ICIs) demonstrate meaningful survival improvements, however, there are limited data detailing how BoMs respond. The primary aim of this study was to compare the response of BoMs against visceral lesions in patients treated with ICIs. The secondary aim was to evaluate the effect of BoMs on survival. Methods: A retrospective, multicenter cohort study was conducted in patients with NSCLC treated with ICI in Alberta, Canada from 2015 to 2020. The primary endpoint was the time to progression of bone versus visceral lesions measured with serial imaging studies. Visceral lesions were categorized as adrenal, brain, liver, lung, lymph node, or other intra- abdominal lesions. The secondary outcome was overall survival (OS) amongst patients with and without BoMs. Sub-group analysis was performed in patients with high PD-L1 expression (≥50%). Results: A total of 573 patients were included with a median age of 69.9 years (IQR: 60.6- 73.4) and 268 (46.8%) had high PD-L1 expression. All patients had visceral metastases and 243 patients (42.4%) had BoMs. Median OS for the entire cohort was 8.1 months (95%CI: 6.9-9.1) and median progression free survival (PFS) was 3.8 months (95%CI: 3.1-4.4). No difference was found between the time to progression of bone, liver, and intra-abdominal lesions (p=0.20, p=0.76), but BoMs demonstrated faster progression than the other sites of disease. Subgroup analysis of patients with high PD-L1 expression (≥50%) demonstrated no significant difference in the time to progression between extra-thoracic sites of disease, including BoMs. The presence of BoMs was found to be an independent prognostic factor for OS (HR 1.26, 95%CI: 1.05-1.53, p=0.01) but this was not significant in the high PD-L1 expression subgroup (HR: 1.24, 95%CI: 0.92-1.68, p=0.16). Conclusion: Bone, liver, and intra-abdominal lesions demonstrated a significantly shorter time to progression than other visceral lesions, and patients with BoMs had inferior clinical outcomes. PD-L1 status was identified as an important biomarker predicting response, as patients with high PD-L1 expression demonstrated equivalent responses to ICI amongst extra-thoracic sites of disease.
Formalization of Abstract State Transition Systems for SAT
Creators: name: Maric, Filip
name: Janicic, Predrag
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1, F.4.1

description: We present a formalization of modern SAT solvers and their properties in a form of abstract state transition systems. SAT solving procedures are described as transition relations over states that represent the values of the solver's global variables. Several different SAT solvers are formalized, including both the classical DPLL procedure and its state-of-the-art successors. The formalization is made within the Isabelle/HOL system and the total correctness (soundness, termination, completeness) is shown for each presented system (with respect to a simple notion of satisfiability that can be manually checked). The systems are defined in a general way and cover procedures used in a wide range of modern SAT solvers. Our formalization builds up on the previous work on state transition systems for SAT, but it gives machine-verifiable proofs, somewhat more general specifications, and weaker assumptions that ensure the key correctness properties. The presented proofs of formal correctness of the transition systems can be used as a key building block in proving correctness of SAT solvers by using other verification approaches.
Pre-Print: A Novel, Streamlined Approach to the IRB Review of Artificial Intelligence Human Subjects Research (AI HSR)
Creators: name: Eto, Tamiko
Publisher: name: Stanford Digital Repository
Year: 2024
Subjects: subject: Institutional review boards (Medicine)
subject: Machine learning
subject: AI (Artificial intelligence)
subject: Software as a Medical Device
subject: Clinical Decision Support Systems
subject: Regulatory Oversight
subject: FDA
subject: OHRP
subject: HRPP

description: This whitepaper outlines the development of a novel, streamlined, and compliant Institutional Review Board (IRB) review process for AI Human subjects Research (AI HSR). Our proposal centers on collaborating with cross-functional teams across the institution in the risk-to-benefit ratio assessment of AI tools and their risk mitigation efforts.  This includes establishing a shared platform and common language around human subjects research and AI risks. By aligning IRB risk-to-benefit assessment with the institution’s broader stakeholders and ancillary committees, we ensure that AI technologies are integrated sustainably, consistently, and ethically. 
A fundamental premise of this approach is that scientific evidence is the foundation for trust in healthcare. As clinicians begin developing AI tools for research and their practice, the healthcare organizations for which they are employed may take on the role as legal manufacturers of AI technologies. Therefore, institutions must work closely with their IRBs to ensure risk management activities are applied appropriately and in a timely manner. 
Healthcare providers rely on scientifically validated research to make informed medical decisions, whether a human or a machine makes those decisions. Such decisions directly impact the health and well-being of individuals and their families. These healthcare providers making their products available inside and outside their institution could harm their own and other patients if their innovations are not properly developed and risks mitigated. Ensuring trust in healthcare requires that the innovators in research hospitals adhere to rigorous scientific and ethical standards during the development of digital health tools. Therefore, under the oversight of an IRB and in close collaboration with the broader Human Research Protection Program, a systematic risk management framework is applied in the evaluation of AI tools under development.
Sequential Reattempt of Telecloning
Creators: name: Das, Sudipta
name: Halder, Pritam
name: Banerjee, Ratul
name: De, Aditi Sen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The task of a telecloning protocol is to send an arbitrary qubit possessed by a sender to multiple receivers. Instead of performing Bell measurement at the sender's node, if one applies unsharp measurement, we show that the shared state can be recycled for further telecloning protocol. Specifically, in case of a single sender and two receivers, the maximal attempting number, which is defined as the maximum number of rounds used by the channel to obtain quantum advantage in the fidelity, turns out to be three both for optimal and nonoptimal shared states for telecloning while the maximal number reduces to two in case of three receivers. Although the original telecloning with quantum advantage being possible for arbitrary numbers of receivers, we report that the recycling of resources is not possible in telecloning involving a single sender and more than three receivers, thereby demonstrating a no-go theorem. We also connect the maximal achievable fidelities in each round with the bipartite entanglement content of the reduced state between the sender and one of the receivers as well as with the monogamy score of entanglement.
description: v1: 12 pages, 5 figures; v2: 13 pages, 5 figures; close to the publish version
Stenomicra brunnea Grimaldi 2009, new species
Creators: name: Grimaldi, David A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Periscelididae
Stenomicra
Stenomicra brunnea

description: Stenomicra brunnea, new species Figures 4, 7 DIAGNOSIS: Frons whitish, pollinose; scutum and scutellum dark brown, scutum with yellow longitudinal stripe that is narrower than distance between dorsocentrals; pleura without brown infuscation. All abdominal tergites brown; wings hyaline. Scutellum narrow. Anterior fronto-orbital and postvertical setae minute and light, barely detectable. Arista with 5 dorsal, 2 ventral branches. Besides coloration, also distinguished from similar species by male terminalia: Surstylus relatively short, apical third curved upward, apex acute; with dense setulae over much of surstylus. Aedeagus with straight trunk, apex brushy and with narrow tip. TYPES: Holotype, male (dissected, no. 57), FIJI: Taveuni: Cakaudrove Prov., 5.6 km SE Tavuki Vlg., Devo Peak, 1187 m, 30.VI– 14.VIII. 2004, Malaise 1, Schlinger, M. Tokota’a, 16.843 ° S, 179.966 ° W, FBA 50904. ThL 5 1.22 mm; L r-m / L between r-m and mcu 5 0.53. In BPBM. Specimen is missing the scutellar and most dorsocentral setae. In addition, there are 3 females that match the male holotype in color and chaetotaxy, also from Cakaudrove Prov.: 3.2 km NW Lavena Vlg., Mt. Koronibuabua, 217 m, 24. II –11. III.04, Malaise 3, Schlinger and Tokota’a, 16.855 ° S, 179.89 ° W, FBA127415, 153258, 168376. ETYMOLOGY: From the Latin, brunneus, for brown, in reference to the color of the scutum and tergites.
description: Published as part of Grimaldi, David A., 2009, The Asteioinea of Fiji (Insecta: Diptera: Periscelididae, Asteiidae, Xenasteiidae), pp. 1-60 in American Museum Novitates 3671 on page 5, DOI: 10.1206/685.1, http://zenodo.org/record/5358027
Structural aspects of the clustering of curcumin molecules in water. Molecular dynamics computer simulation study
Creators: name: Patsahan, T.
name: Pizio, O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We explore clustering of curcumin molecules in water by using the OPLS-UA model for the enol conformer of curcumin (J. Mol. Liq., 223, 707, 2016) and the SPC-E water model. With this purpose, solutions of 2, 4, 8, 12, 16 and 20 curcumin molecules in 3000 water molecules are studied by using extensive molecular dynamics computer simulations. Radial distributions for the centers of mass of curcumin molecules are evaluated and the running coordination numbers are analyzed. The formation of clusters on time is elucidated. The internal structure of molecules within the cluster is described by using radial distributions of the elements of the curcumin molecule, the orientation descriptors, the order parameter and the radius of gyration. The self-diffusion coefficient of solute molecules in clusters is evaluated. The distribution of water species around clusters is described in detail. A comparison of our findings with computer simulation results of other authors is performed. A possibility to relate predictions of the model with experimental observations is discussed.
description: 16 pages, 18 figures
Comparing the non-unital and unital settings for directed homotopy
Creators: name: Gaucher, Philippe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: This note explores the link between the q-model structure of flows and the Ilias model structure of topologically enriched small categories. Both have weak equivalences which induce equivalences of fundamental (semi)categories. The Ilias model structure cannot be left-lifted along the left adjoint adding identity maps. The minimal model structure on flows having as cofibrations the left-lifting of the cofibrations of the Ilias model structure has a homotopy category equal to the $3$-element totally ordered set. The q-model structure of flows can be right-lifted to a q-model structure of topologically enriched small categories which is minimal and such that the weak equivalences induce equivalences of fundamental categories. The identity functor of topologically enriched small categories is neither a left Quillen adjoint nor a right Quillen adjoint between the q-model structure and the Ilias model structure.
description: 15 pages
Stenomicra castanea Grimaldi 2009, new species
Creators: name: Grimaldi, David A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Periscelididae
Stenomicra
Stenomicra castanea

description: Stenomicra castanea, new species Figures 4, 8 DIAGNOSIS: Frons white; scutum and scutellum evenly light brown, without central longitudinal light stripe; light brown infuscation on dorsal portion of pleura. Wing hyaline. Abdominal tergites I–IV light brown. Besides the scutum coloration, best distinguished on basis of male terminalia: surstyli straight, not curved, with blunt apex, without microtrichia and few setulae; trunk of aedeagus straight, apex brushy; syntergosternite VII ventrally with median lobe on posterior margin. TYPE: Holotype, male (dissected, no. 59), Viti Levu: Naitasiri Prov., 4.8 km N Veisari Stlmt, log rd to Waivudawa, 300 m, 12.XII– 3.I.03. Malaise 1. Schlinger, Tokota’a, 18.075 ° S, 178.362 ° E, FBA 178234. ThL 5 1.20 mm; L rm / L between r-m and m-cu 5 0.50. Type is in good condition, with most of head and thoracic setae intact. In BPBM. ETYMOLOGY: From the Latin castaneus, for the color of chestnuts, in reference to the color of the scutum and scutellum.
description: Published as part of Grimaldi, David A., 2009, The Asteioinea of Fiji (Insecta: Diptera: Periscelididae, Asteiidae, Xenasteiidae), pp. 1-60 in American Museum Novitates 3671 on page 5, DOI: 10.1206/685.1, http://zenodo.org/record/5358027
Geometric inequalities for axially symmetric black holes
Creators: name: Dain, Sergio
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A geometric inequality in General Relativity relates quantities that have both a physical interpretation and a geometrical definition. It is well known that the parameters that characterize the Kerr-Newman black hole satisfy several important geometric inequalities. Remarkably enough, some of these inequalities also hold for dynamical black holes. This kind of inequalities play an important role in the characterization of the gravitational collapse, they are closed related with the cosmic censorship conjecture. Axially symmetric black holes are the natural candidates to study these inequalities because the quasi-local angular momentum is well defined for them. We review recent results in this subject and we also describe the main ideas behind the proofs. Finally, a list of relevant open problem is presented.
description: 65 pages, 5 figures. Review article, to appear in Class. Quantum Grav. as Topical Review. Improved presentation, minor corrections, references update
Regularized path integrals and anomalies -- U(1) chiral gauge theory
Creators: name: Kopper, Christoph
name: Lévêque, Benjamin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the origin of the Adler anomaly of chiral U(1) gauge theory within the framework of regularized path integrals. Momentum or position space regulators allow for mathematically well-defined path integrals but violate local gauge symmetry. It is known how (nonanomalous) gauge symmetry can be recovered in the renormalized theory in this case [1]. Here we analyse U(1) chiral gauge theory to show how the appearance of anomalies manifests itself in such a context. We show that the three-photon amplitude leads to a violation of the Slavnov-Taylor-Identities which cannot be restored on taking the UV limit in the renormalized theory. We point out that this fact is related to the nonanalyticity of this amplitude in the infrared region.
description: 33 pages, 1 figure; few minor changes, 2 references added
Alternating groups as products of cycle classes
Creators: name: Kishnani, Harish
name: Kundu, Rijubrata
name: Mishra, Sumit Chandra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20B30, 20D06, 05A05, 20B05

description: Given integers $k,l\geq 2$, where either $l$ is odd or $k$ is even, let $n(k,l)$ denote the largest integer $n$ such that each element of $A_n$ is a product of $k$ many $l$-cycles. In 2008, M. Herzog, G. Kaplan and A. Lev proved that if $k,l$ both are odd, $3\mid l$ and $l>3$, then $n(k,l)=\frac{2}{3}kl$. They further conjectured that if $k$ is even and $3\mid l$, then $n(k,l)=\frac{2}{3}kl+1$. In this article, we prove this conjecture. We also prove that $n(k,3)=2k+1$ if $k$ is odd.
Perrot et al - Script and dataset - Use of linear features by red-legged partridges in an intensive agricultural landscape
Creators: name: Perrot, Charlotte
name: Serrane, Léo
name: Berceaux, Antoine
name: Noël, Mathias
name: Arroyo, Beatriz
name: Bacon, Léo
Publisher: name: Zenodo
Year: 2024

description: Script R and dataset about the article "Use of linear features by red-legged partridges in an intensive agricultural landscape: implications for landscape management in farmland".
Return Radius and volume of recrystallized material in Ostwald Ripening
Creators: name: Hausser, Frank
name: Lakshtanov, Evgeny
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Within the framework of the LSW theory of Ostwald ripening the amount of volume of the second (solid) phase that is newly formed by recrystallization is investigated. It is shown, that in the late stage, the portion of the newly generated volume formed within an interval from time $t_0$ to $t$ is a certain function of $t/t_0$ and an explicit expression of this volume is given. To achieve this, we introduce the notion of the {\it return radius} $r(t,t_0)$, which is the unique radius of a particle at time $t_0$ such that this particle has -- after growing and shrinking -- the same radius at time $t$. We derive a formula for the return radius which later on is used to obtain the newly formed volume. Moreover, formulas for the growth rate of the return radius and the recrystallized material at time $t_0$ are derived.
Targeted Serum Metabolomics for Noninvasive Detection of Colorectal Neoplasia
Creators: name: Fitzgerald, Liam Warren
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Colorectal cancer
subject: Screening
subject: Metabolomics
subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Cancer biomarker
subject: Medicine and Surgery
subject: Bioinformatics
subject: Oncology

description: Background: Early detection of colorectal cancer (CRC) and its precursor lesions improves CRC-related mortality and reduces disease incidence. However, due to limitations of currently available screening modalities, patient adherence to screening is low. A reliable and inexpensive blood test represents a promising solution to this problem. Our group has previously demonstrated that there are distinct metabolic perturbations in CRC and adenomatous polyps which are measurable in the blood. However, a targeted metabolomic approach is needed to uncover reliable meta-biomarkers for CRC, adenomatous polyps, and serrated polyps. Methods: A targeted metabolomic assay (Biocrates MxP® Quant 500) was used to analyze our discovery set of sera from patients with CRC of all stage (N=111), adenoma (N=63), sessile serrated adenoma (SSA; N=62), and age- and sex-matched disease-free controls (DFC; N=154). Orthogonal partial least squares discriminant analysis (OPLS-DA) and machine learning (ML) were used to derive signatures comprised of metabolite concentration ratios which discriminate between CRC, adenoma, SSA, and DFCs. A large, representative validation cohort (N=838) was also analyzed to test our meta-biomarkers. Results: Two signatures for CRC were derived from OPLS-DA and ML and comprised of 21 and 16 metabolite ratios, respectively. OPLS-DA signatures for adenoma and SSA were comprised of 23 and 56 metabolite ratios, respectively. All models performed well based on 7-fold internal cross-validation, with receiver operating characteristic (ROC) analysis demonstrating areas under the curve (AUC) greater than 0.85. Importantly, external validation confirmed the reliability of our meta-biomarkers, with sensitivities as high as 92-100% for CRC and 80-85% for adenoma and SSA being possible. Conclusion: Our meta-biomarkers discovered using targeted metabolomics demonstrated excellent performance based on internal and external validation. Of significance, our signatures exhibit superior sensitivity compared to other readily available screening modalities such as stool tests.
Robust Regularity in γ-Soft Nuclei and its Microscopic Realization
Creators: name: Nomura, K.
name: Shimizu, N.
name: Vretenar, D.
name: Niksic, T.
name: Otsuka, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: γ-softness in atomic nuclei is investigated in the framework of energy density functionals. By mapping constrained microscopic energy surfaces for a set of representative non-axial medium-heavy and heavy nuclei to a Hamiltonian of the proton-neutron interacting boson model (IBM-2) containing up to three-body interactions, low-lying collective spectra and transition rates are calculated. Observables are analyzed that distinguish between the two limiting geometrical pictures of non-axial nuclei: the rigid-triaxial rotor and the γ-unstable rotor. It is shown that neither of these pictures is realized in actual nuclei, and that a microscopic description leads to results that are almost exactly in between the two geometrical limits. This finding points to the optimal choice of the IBM Hamiltonian for γ-soft nuclei.
description: 5 pages, 3 figures, Phys. Rev. Lett. in press
KONSTITUTSIYA YOSHLAR NIGOHIDA
Creators: name: Hoshimova, Sitora
name: Zakirova, Sayyora
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada muallif bugungi kunda O'zbekiston yoshlarining yangi nashrdagi konstitutsiyaga bo'lgan qiziqishlari, o'zlarining tajribalaridan kelib chiqib kiritayotgan takliflari, bosh qomusimizdagi insonparvarlikka, yoshlarga yaratilib  berilayotgan shart-sharoitlarga bo'lgan munosabati hamda yangi konstitutsiyamizdagi yangi normalar, moddalar va  qonunlarni targ'ib etishga bag'ishlaydi.
The Lorentz transformations of the vectors E, B, P, M and the external electric fields from a stationary superconducting wire with a steady current and from a stationary permanent magnet
Creators: name: Ivezic, Tomislav
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In the first part of this paper we review the fundamental difference between the usual transformations of the three-dimensional (3D) vectors of the electric field $\mathbf{E}$, the magnetic field $\mathbf{B}$, the polarization $\mathbf{P}$, the magnetization $\mathbf{M}$ and the Lorentz transformations of the 4D geometric quantities, vectors E, B, P, M, with many additional explanations and several new results. In the second part, we have discussed the existence of the electric field vector E outside a stationary superconducting wire with a steady current and also different experiments for the detection of such electric fields. Furthermore, a fundamental prediction of the existence of the external electric field vector E from a stationary permanent magnet is considered. These electric fields are used for the resolution of the "charge-magnet paradox" with 4D geometric quantities for a qualitative explanation of the Aharonov-Bohm effect in terms of fields and not, as usual, in terms of the vector potential and for a qualitative explanation that the particle interference is not a test of a Lorentz-violating model of electrodynamics according to which a magnetic solenoid generates not only a static magnetic field but also a static electric field.
description: 57 pages, minor changes, this version will be published in the Proceedings of the IARD 2012
Decoherence of Cosmological Perturbations from Boundary Terms and the Non-Classicality of Gravity
Creators: name: Sou, Chon Man
name: Tran, Duc Huy
name: Wang, Yi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We note that the decoherence of inflationary curvature perturbation $ζ$ is dominated by a boundary term of the gravity action. Although this boundary term cannot affect cosmological correlators $\left\langle ζ^n \right\rangle$, it induces much faster decoherence for $ζ$ than that of previous calculations. The gravitational origin of inflationary decoherence sheds light on the quantum (or non-classical) nature of gravity. By comparing with a Schrödinger-Newton toy model of classical gravity, we show that gravity theories of classical or quantum origins can be distinguished by comparing their different impacts on decoherence rate of $ζ$. Our calculation also indicates that density fluctuation $δρ$ better preserves quantum information than $ζ$ for the purpose of constructing cosmological Bell-like experiments.
description: v3: 34 pages, 3 figures; typos corrected, references and figure added. Revised the part of UV and IR divergences. Match the JHEP version
Novel wild-derived mouse models of obesity and diabetes resistance
Creators: name: Lee, Katie Ting Yan
Publisher: name: University of British Columbia
Year: 2012

description: Novel inbred mouse strains have been developed from wild-caught mice, and they display enhanced genetic diversity compared to the commonly used strains. We hypothesized that their unique genotypes may yield aspects of disease susceptibility previously unobserved in the commonly used strains. We examined two of these strains, PWD/PhJ (PWD) and WSB/EiJ (WSB), for obesity and type 2 diabetes (T2D)-related traits in response to high fat diet (HFD) feeding and compared them to the C57BL/6J (B6) strain. We identified PWD mice as a model of primary hyperinsulinemia. They had increased insulin levels at a young age while they were lean and insulin sensitive. They were protected from early development of diet-induced obesity, although they later developed obesity similar to B6 mice that may be induced by chronic hyperinsulinemia. PWD mice are a novel model of primary hyperinsulinemia as a cause of obesity. WSB mice are a model of extraordinary resistance to HFD-associated obesity and T2D. They have a higher energy expenditure that may have contributed to their protection from HFD-induced obesity. PWD and WSB mice modeled novel aspects of disease susceptibility and are interesting models for further study to determine the mechanisms associated with the pathogenesis of obesity and T2D.
Asymmetric Magnetic Reconnection in Solar Flare and Coronal Mass Ejection Current Sheets
Creators: name: Murphy, N. A.
name: Miralles, M. P.
name: Pope, C. L.
name: Raymond, J. C.
name: Winter, H. D.
name: Reeves, K. K.
name: Seaton, D. B.
name: van Ballegooijen, A. A.
name: Lin, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present two-dimensional resistive magnetohydrodynamic simulations of line-tied asymmetric magnetic reconnection in the context of solar flare and coronal mass ejection current sheets. The reconnection process is made asymmetric along the inflow direction by allowing the initial upstream magnetic field strengths and densities to differ, and along the outflow direction by placing the initial perturbation near a conducting wall boundary that represents the photosphere. When the upstream magnetic fields are asymmetric, the post-flare loop structure is distorted into a characteristic skewed candle flame shape. The simulations can thus be used to provide constraints on the reconnection asymmetry in post-flare loops. More hard X-ray emission is expected to occur at the footpoint on the weak magnetic field side because energetic particles are more likely to escape the magnetic mirror there than at the strong magnetic field footpoint. The footpoint on the weak magnetic field side is predicted to move more quickly because of the requirement in two dimensions that equal amounts of flux must be reconnected from each upstream region. The X-line drifts away from the conducting wall in all simulations with asymmetric outflow and into the strong magnetic field region during most of the simulations with asymmetric inflow. There is net plasma flow across the X-line for both the inflow and outflow directions. The reconnection exhaust directed away from the obstructing wall is significantly faster than the exhaust directed towards it. The asymmetric inflow condition allows net vorticity in the rising outflow plasmoid which would appear as rolling motions about the flux rope axis.
description: 33 pages, 8 figures, accepted to ApJ. Minor corrections since previous version
Imprinting RF Backscatter on Flexible Surfaces for Next-Generation Sensing
Creators: name: Zhang, Junbo
Publisher: name: Carnegie Mellon University
Year: 2024
Subjects: Electrical and Electronic Engineering not elsewhere classified

description:  In this dissertation, we design radio-frequency (RF) backscatter platforms on flexible surfaces to enable next-generation sensing applications. In a typical RF backscatter system, backscatter devices (e.g., sensors and tags) do not actively transmit RF signals as common RF devices would do. Instead, they deliver their message by reflecting and modulating the electromagnetic (EM) waves from a reader device responsible for analyzing the reflected signal and extracting the encoded information. In other words, backscatter devices communicate with their reflections. 
RF backscatter has seen successful implementation and even commercialization in a variety of wireless technologies, for example, Wi-Fi, Bluetooth, mmWave (millimeter-wave), RFID (radio-frequency identification), and Near-field Communication (NFC), enabling a variety of interesting applications. It is attractive because backscatter devices tend to be low-power (or even battery-free), lightweight, and cost-effective. Hence, they are expected to unlock a ubiquitous sensing future where numerous backscatter devices seamlessly blend into our everyday lives, providing continuous and pervasive sensing capabilities, real-time data collection, and enhanced interconnectivity for smart applications. 
Realizing such a future requires integrating wireless sensing capabilities into everyday objects and surfaces, where physical flexibility is key to seamless integration. Since modern RF devices generally break down into rigid printed circuit boards (PCBs), in this dissertation, we seek to fabricate backscatter devices on flexible surfaces instead. We show such novel devices can unlock even more innovative applications and design possibilities in smart buildings, intelligent healthcare, and vehicular/robotic navigation. 
We explore three flexible surfaces in three unique application scenarios. First, we present Textile-Sense, a textile antenna interface for NFC sensing devices. Its soft nature provides maximum flexibility in various human-computer interaction applications such as smart furniture and clothing. Next, we show NFCapsule, a battery-free, ingestible capsule based on near-field coupling for in-body health sensing – detecting the health condition of the human esophagus. Finally, we introduce PolarVisor, where we prototype mmWave metasurfaces with paper and foils and design clutter-free, electronic-free fiducial markers for robotic self-localization applications. We design, fabricate, and deploy these backscatter systems to demonstrate promising results cutting across applications.
From Apathetic to Amiable: The British Empire and Haile Selassie’s Ethiopia, 1916-1974
Creators: name: Holbert, Quentin Colin
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Ethiopia
subject: Britain
subject: Haile Selassie
subject: Imperial
subject: International Relations
subject: Diplomacy
subject: Twentieth Century
subject: History--African
subject: History--European
subject: History--Modern

description: Imperial Ethiopia was one of only two African states to retain its independence during the Scramble for Africa in the late nineteenth and early twentieth centuries. The most famous leader of Ethiopia was Emperor Haile Selassie, who ruled from 1930 to 1974. However, his involvement in international affairs date to 1916 when he was the Heir Apparent. The British Empire, which controlled colonies neighbouring Ethiopia, was the largest polity that the emperor conducted diplomacy with. This project examines how the British government’s attitude towards Ethiopia evolved between 1916 and 1974. The central change that happened was that Britain became friendlier to Ethiopia, having shifted from being apathetic and dismissive to more collaborative and respectful. From 1916 to 1935, Britain was dismissive of Ethiopia, although they were interested in keeping Lake Tana, one of the main reservoirs of the Nile River, flowing freely. During the diplomatic crisis leading up to the Second Italo-Ethiopian War (1935-1937), Britain tried to use Ethiopia as a bargaining chip with Fascist Italy. Nonetheless, Selassie spent his exile in the United Kingdom. When Italy joined the Axis side of the Second World War in 1940, Britain worked with both Selassie and Ethiopian patriot fighters to help liberate the country. For the remainder of the 1940s, Britain helped stabilize the war-torn country via the British Military Administration. While Selassie leaned more heavily on American military funding in the 1950s and 1960s, Britain shifted to a Soft Power approach towards Ethiopia. Despite crises like the abortive coup attempt of 1960 and the outbreak of the Eritrean War of Liberation, Britain remained a close ally of Selassie up until the Derg coup of 1974. This dissertation represents the most comprehensive analysis of British-Ethiopian relations between 1916 and 1974.
L1157-B1: Water and ammonia as diagnostics of shock temperature
Creators: name: Viti, S.
name: Jimenez-Serra, I.
name: Yates, J. A.
name: Codella, C.
name: Vasta, M.
name: Caselli, P.
name: Lefloch, B.
name: Ceccarelli, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the origin and nature of the profiles of water and ammonia observ ed toward the L1157-B1 clump as part of the HIFI CHESS survey (Ceccarelli et al. 2010) using a new code coupling a gas-grain chemical model with a parametric shock model. Fir st results from the unbiased survey (Lefloch et al. 2010, Codella et al. 2010) reveal different molecular components at different excitation conditions coexisting in the B1 bow shock structure, with NH$_3$, H$_2$CO and CH$_3$OH emitting only at relatively low outflow velocities whereas H$_2$O shows bright emission at high velocities. Our model suggests that these differences are purely chemical and can be explained by the presence of a C-type shock whose maximum temperature must be close to 4000 K along the B1 clump.
description: Accepted by ApJ Letters
BULUTLI HISOBLASH TEXNOLOGIYALARI VA AI ASOSIDA QISHLOQ XO'JALIGIDA PROGNOZLASH TIZIMLARI
Creators: name: Qodirov, Farrux
name: Turayeva, Sabrina
Publisher: name: Zenodo
Year: 2025

description: Zamonaviy qishloq xo‘jaligi texnologiyalari rivojlanib borayotgan bir paytda, sun’iy intellekt (AI) va bulutli hisoblash tizimlari fermerlarga samarali qaror qabul qilish, hosildorlikni oshirish va resurslardan unumli foydalanish imkonini bermoqda. Ushbu maqolada bulutli hisoblash va AI asosida qishloq xo‘jaligida prognozlash tizimlarining ahamiyati, ishlash prinsiplari hamda istiqbollari haqida so‘z yuritiladi.
Is thermodynamics of the universe bounded by the event horizon a Bekenstein system?
Creators: name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this brief communication, we have studied the validity of the first law of thermodynamics for the universe bounded by event horizon with two examples. The key point is the appropriate choice of the temperature on the event horizon. Finally, we have concluded that universe bounded by the event horizon may be a Bekenstein system and the Einstein's equations and the first law of thermodynamics on the event horizons are equivalent.
description: 4 pages; accepted for publication in Phys. Lett. B