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Articles 34351 - 34380 of 294596

Full-Text Articles in Physical Sciences and Mathematics

Arsenic And Accountability: A Retrospective On The Arsenic-Life Controversy, Jules Lieberman Jan 2024

Arsenic And Accountability: A Retrospective On The Arsenic-Life Controversy, Jules Lieberman

The Synapse: Intercollegiate science magazine

No abstract provided.


Front Matter Jan 2024

Front Matter

The Synapse: Intercollegiate science magazine

No abstract provided.


Marriage: Penguins And Humans Propose | A Ritual That Transcends Gender And Species, Ann Clark Jan 2024

Marriage: Penguins And Humans Propose | A Ritual That Transcends Gender And Species, Ann Clark

The Synapse: Intercollegiate science magazine

No abstract provided.


From Fictional Pandemics To Potential Reality: The Realities And Myths Of 'The Last Of Us' Cordyceps Fungus, Jaedyn O'Reilly Jan 2024

From Fictional Pandemics To Potential Reality: The Realities And Myths Of 'The Last Of Us' Cordyceps Fungus, Jaedyn O'Reilly

The Synapse: Intercollegiate science magazine

No abstract provided.


Featured Artists: Grace Weber, Anadi Purewal-Legha, Ofek Levy Jan 2024

Featured Artists: Grace Weber, Anadi Purewal-Legha, Ofek Levy

The Synapse: Intercollegiate science magazine

No abstract provided.


In The Age Of Ozempic: Semiglutide's Impact On The Weight-Loss Frontier, Luke Dodson Jan 2024

In The Age Of Ozempic: Semiglutide's Impact On The Weight-Loss Frontier, Luke Dodson

The Synapse: Intercollegiate science magazine

No abstract provided.


Resourceful Remedies: Herbal Medicines In Indigenous Villages Of Northern Thailand, Ava Peyton Jan 2024

Resourceful Remedies: Herbal Medicines In Indigenous Villages Of Northern Thailand, Ava Peyton

The Synapse: Intercollegiate science magazine

No abstract provided.


Navigating Digital Neurodiversity: Understanding The Intersection Of Neurodiversity And Technology For Personal Wellbeing, Haze Doleys Jan 2024

Navigating Digital Neurodiversity: Understanding The Intersection Of Neurodiversity And Technology For Personal Wellbeing, Haze Doleys

The Synapse: Intercollegiate science magazine

No abstract provided.


Learning To Learn: The Neuroscience Of Affective Learning, Emma Barnard Jan 2024

Learning To Learn: The Neuroscience Of Affective Learning, Emma Barnard

The Synapse: Intercollegiate science magazine

No abstract provided.


Materials And Methods In Squid Dissolution, Isabel Hardwig Jan 2024

Materials And Methods In Squid Dissolution, Isabel Hardwig

The Synapse: Intercollegiate science magazine

No abstract provided.


In The Shadow Of The Moon: Reflections On The April 2024 Total Solar, Danielle Oliver Jan 2024

In The Shadow Of The Moon: Reflections On The April 2024 Total Solar, Danielle Oliver

The Synapse: Intercollegiate science magazine

No abstract provided.


Issue 40 Jan 2024

Issue 40

The Synapse: Intercollegiate science magazine

No abstract provided.


Exploring The Neural Jungle: The Positive Effects Of Hallucinogens On The Brain, Izzie Braun Jan 2024

Exploring The Neural Jungle: The Positive Effects Of Hallucinogens On The Brain, Izzie Braun

The Synapse: Intercollegiate science magazine

No abstract provided.


The Synapse Crossword Jan 2024

The Synapse Crossword

The Synapse: Intercollegiate science magazine

No abstract provided.


Honors Research Jan 2024

Honors Research

The Synapse: Intercollegiate science magazine

No abstract provided.


Don’T Touch My Memories! Turning Fake Stories Into Real Memories, Zeynep Kaya Jan 2024

Don’T Touch My Memories! Turning Fake Stories Into Real Memories, Zeynep Kaya

The Synapse: Intercollegiate science magazine

No abstract provided.


Information Overload: Marketable Diagnostic Data In Full Body Mris, Luke Dodson Jan 2024

Information Overload: Marketable Diagnostic Data In Full Body Mris, Luke Dodson

The Synapse: Intercollegiate science magazine

No abstract provided.


Complexity, Entanglement And Codes In Quantum Field Theory, Nikolaos Angelinos Jan 2024

Complexity, Entanglement And Codes In Quantum Field Theory, Nikolaos Angelinos

Theses and Dissertations--Physics and Astronomy

In recent decades many deep connections between quantum information theory and quantum field theory have been unearthed. In this dissertation we study topics in high-energy physics through the lens of quantum information: 1) We develop connections between error-correcting codes and Narain conformal field theories. 2) We study the entanglement entropy of one-dimensional fermionic chains with long-range interactions. 3) We study the temperature dependence of Lanczos coefficients and Krylov complexity.


Topics In Quantum Information, Complexity And Chaos, Debarghya Chakraborty Jan 2024

Topics In Quantum Information, Complexity And Chaos, Debarghya Chakraborty

Theses and Dissertations--Physics and Astronomy

This dissertation explores quantum information, the use of codes to describe quantum field theories, and introduces new concepts to characterize the dynamics of quantum many-body systems. The contributions of this dissertation are the following: 1) We constructed Narain Conformal Field Theories (CFTs) using additive codes, where the modular bootstrap constraints translate into algebraic conditions on the codes, extending previous approaches. This helps express key CFT data, including the torus partition function, in terms of codewords. We constructed optimal Narain CFTs for small central charges, and described CFT ensembles for asymptotically large central charge with large spectral gap. 2) We studied …


การอัตโนมัติกระแสงานของระบบการจัดการเนื้อหาด้วยพาวเวอร์ออโตเมต, อภิญญา แขนสูงเนิน Jan 2024

การอัตโนมัติกระแสงานของระบบการจัดการเนื้อหาด้วยพาวเวอร์ออโตเมต, อภิญญา แขนสูงเนิน

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้นำเสนอการพัฒนาระบบอัตโนมัติกระแสงานของระบบจัดการเนื้อหา หรือ ซีเอ็มเอส โดยใช้ ไมโครซอฟต์ พาวเวอร์ ออโตเมต และ เอไอ บิวเดอร์ บูรณาการกับ สตราพี ซีเอ็มเอส และ แชร์พอยต์ เพื่อเพิ่มประสิทธิภาพ ลดความผิดพลาดจากการดำเนินงานด้วยมือ และยกระดับความคล่องตัวในองค์กร กระแสงานที่พัฒนาแชร์พอยต์ประกอบด้วยการบูรณาการเว็บฮุก ของ สตราพี ซีเอ็มเอส เพื่อเริ่มต้นกระบวนการอัตโนมัติ การตรวจสอบความถูกต้องของเนื้อหาด้วยเอไอ บิวเดอร์ การบันทึกข้อมูลเหตุการณ์และข้อผิดพลาดในแชร์พอยต์ อีกทั้งการแจ้งเตือนผ่านไมโครซอฟท์ ทีม นอกจากนี้ ยังมีการใช้ จีพีที 4.0 สำหรับการวิเคราะห์บันทึกข้อผิดพลาด เพื่อเสนอแนวทางแก้ไขและปรับปรุงกระบวนการ ผลการทดลองในธนาคารพาณิชย์ไทยแห่งหนึ่งแสดงให้เห็นว่าสามารถลดระยะเวลาในการจัดการเนื้อหาได้ร้อยละ 87.5 และลดข้อผิดพลาดจากการป้อนข้อมูลได้ร้อยละ 80 เมื่อเทียบกับการทำงานแบบเดิมด้วยมนุษย์ งานวิจัยนี้ได้เน้นให้เห็นถึงศักยภาพของการใช้เทคโนโลยีดิจิทัลที่นำไปสู่โซลูชันการอัตโนมัติระบบการจัดการเนื้อหาที่เป็นรูปธรรม


Structure Identification For High-Dimensional Data In The Vicinity Of Bear Lake, Ben Shaw, Haley Burger, Brennan L. Bean, Kevin R. Moon Jan 2024

Structure Identification For High-Dimensional Data In The Vicinity Of Bear Lake, Ben Shaw, Haley Burger, Brennan L. Bean, Kevin R. Moon

Mathematics and Statistics Faculty Publications

This report focuses on seven water quality measurements taken at 43 different depths on the Bear Lake, Utah-Idaho for the months of June - November in the years 2018 - 2023. These measurements create a high-dimensional dataset on which we apply state-of-the-art machine learning (ML) techniques to look for low-dimensional structure in the data. A similar effort was made for weather measurements taken near the lake. Our analysis reveals that water quality measurements tend to cluster (i.e., group together) by year, while weather measurements tend to cluster by time of the year. This in mind, we explore potential drivers of …


Learning To Code With Github Copilot: A Resource For New Student Developers, Sarah Zelikovitz Jan 2024

Learning To Code With Github Copilot: A Resource For New Student Developers, Sarah Zelikovitz

Open Educational Resources

This resource provides a step-by-step guide for new student developers on using GitHub Copilot. It covers the process of signing up for GitHub's Educa􀀁on program, integra􀀁ng Copilot into two popular integrated development environments (IDEs), and using Copilot to generate, document, debug, and optimize code through prompt-based interactions. This guide empowers students to leverage AI-driven assistance in solving coding challenges. It also gives students an understanding of the limitations of AI, and how to use it safely and effectively.


Magnetic Spin Transport Coils For The N2edm Experiment, David C. Bowles Jan 2024

Magnetic Spin Transport Coils For The N2edm Experiment, David C. Bowles

Theses and Dissertations--Physics and Astronomy

The n2EDM experiment is being construct at Paul Scherrer Institute to measure the electric dipole moment of the neutron (nEDM), in a search for new physics which could help explain the baryon asymmetry of the universe. To reach the experimental sensitivity goal of $d_n \sim 10^{-27}$, over an order of magnitude improvement from the current world limit, a spin polarization transfer efficiency of 99\% for ultracold neutrons entering or exiting the precession chamber is required, placing a stringent requirement on the adiabaticity of the magnetic field taper in the neutron guide system. The spin transport fields transition from 5~T (longitudinal) …


Qcd Analysis Of Flavor-Nonchanging Hadronic Weak Processes Through Next-To-Leading Order, Girish Lingadahalli Muralidhara Jan 2024

Qcd Analysis Of Flavor-Nonchanging Hadronic Weak Processes Through Next-To-Leading Order, Girish Lingadahalli Muralidhara

Theses and Dissertations--Physics and Astronomy

Studies in quantum chromodynamics (QCD), the fundamental theory of the strong interactions, of low-energy hadronic weak processes utilize an effective Hamiltonian framework. Below the weak-mass scale, an effective Hamiltonian contains a series of Wilson coefficients and four-quark operators that come from the operator product expansion in the Standard Model. The effective hadronic Hamiltonian pertinent to a weak process is then obtained via a renormalization group analysis in QCD from the weak-mass scale to the low-energy scale of O(2 GeV). In this thesis, the construction and phenomenological implications of such an effective Hamiltonian for flavor-conserving, parity-violating quark processes in the Standard …


Exploring The Hot And Gaseous Universe From Infrared To X-Ray, Chamani Gunasekera Jan 2024

Exploring The Hot And Gaseous Universe From Infrared To X-Ray, Chamani Gunasekera

Theses and Dissertations--Physics and Astronomy

Over 90% of baryonic matter in the universe exists as astrophysical plasmas. The gas
is often far from thermodynamic equilibrium, so numerical non-equilibrium spectral
synthesis simulations are used to understand observations. cloudy simulates vari-
ous physical conditions, providing spectra predictions. This thesis aims to meet the
challenge of new observatories like the JWST (James Webb Space Telescope) and
XRISM (X-Ray Imaging Spectroscopy Mission). These simulations are no better
than the underlying atomic and molecular database and the fourth chapter details
a long-needed update to an evolving database. The predicted spectra are strongly
affected by the composition of the gas, which …


Techniques For Optimizing Neutron Beta Decay Particle Detection, Austin W. Nelsen Jan 2024

Techniques For Optimizing Neutron Beta Decay Particle Detection, Austin W. Nelsen

Theses and Dissertations--Physics and Astronomy

Over the last couple decades, use of free neutron beta decay (n → p + e- + νe) to extract the up-down quark transition element Vud has become competitive with more conventional Fermi decays. Extraction of Vud requires measurements of the vector to axial-vector coupling constant ratio λ and the free neutron lifetime τn. With a precise determination of Vud, the 2.8σ departure from CKM unitarity can be addressed.

Nab, located at the Spallation Neutron Source at ORNL, will measure the electron-neutrino momentum correlation coefficient a (which couples quadratically …


Spinning Spheroidal Components Of Disk Galaxies: Resonant Interactions With Stellar Bars, Xingchen Li Jan 2024

Spinning Spheroidal Components Of Disk Galaxies: Resonant Interactions With Stellar Bars, Xingchen Li

Theses and Dissertations--Physics and Astronomy

The majority of disk galaxies possess stellar bars, which are the main driver in the internal evolution of barred galaxies. Bars represent non-axisymmetric perturbations in the galactic disks, producing strong gravitational torques that facilitate angular momentum transfer from the disk to the spheroidal components, such as central stellar bulges and host dark matter (DM) halos. The redistribution of angular momentum in barred galaxies proceeds mainly via resonant interactions between the bar and orbits in the spheroids. The amount of angular momentum emitted or absorbed at each resonance depends on the mass distribution, density and spin in the spheroidal components. Thus, …


Development Of A Source To Detector Simulation Of The Los Alamos National Lab Neutron Electric Dipole Moment Experiment, Dillon Buskirk Jan 2024

Development Of A Source To Detector Simulation Of The Los Alamos National Lab Neutron Electric Dipole Moment Experiment, Dillon Buskirk

Theses and Dissertations--Physics and Astronomy

The Los Alamos National Laboratory (LANL) neutron electric dipole moment (nEDM) experiment is planning an increased precision measurement of the neutron’s permanent electric dipole moment. LANL nEDM expects to lower the statistical uncertainty to δdLANL = 2 × 10−27 e cm after a year of live-time, which puts a more stringent upper bound on the nEDM. This statistical uncertainty is an order of magnitude less than the current best measurement set by nEDM at PSI. To reach this goal, the LANL nEDM collaboration requires a simulation tool that can tackle optimization problems, investigate systematic effects, and provide mock data …


Development Of A Novel Beam-Type Neutron Lifetime Experiment Using Ultracold Neutrons, Nicholas Floyd Jan 2024

Development Of A Novel Beam-Type Neutron Lifetime Experiment Using Ultracold Neutrons, Nicholas Floyd

Theses and Dissertations--Physics and Astronomy

Precision measurements of the neutron lifetime are critical to tests of the Standard Model. The CKM quark mixing matrix has recently been shown to deviate from unitarity in the top row, motivating the development of alternative extractions of the first element. Complementary measurements of the neutron’s lifetime and decay correlations can be used to accomplish this.

While the reported neutron lifetime by the Particle Data Group is taken from ultracold neutron (UCN) measurements, a separate class of experiments suggest a value in four sigma disagreement, meriting further study. The goal of the UCNProBe experiment at Los Alamos National Laboratory is …


The Application Of Novel Machine Learning Algorithms To Study Multi-Dimensional Fragmentation Functions Of Hadrons In Jets At Star, Hannah A. Harrison-Smith Jan 2024

The Application Of Novel Machine Learning Algorithms To Study Multi-Dimensional Fragmentation Functions Of Hadrons In Jets At Star, Hannah A. Harrison-Smith

Theses and Dissertations--Physics and Astronomy

Hadronization, the process by which colored quarks and gluons shower from high energy collisions and recombine to form stable, experimentally-observable particles, is a fundamental aspect of Quantum Chromodynamics (QCD) that is not yet fully understood. Fragmentation functions, typically measured in electron-positron collisions, encapsulate this hadronization process well for quarks. Studying proton-proton collisions offers direct access to gluon fragmentation that other channels like electron-positron do not. Recent theoretical developments have proposed the study of hadronic showers in groupings called jets, introducing the concept of multi-dimensional jet fragmentation functions. This thesis presents the extraction of collinear and transverse momentum-dependent fragmentation functions for …