cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
مساهمة الابتكار التسويقي في تنمية الميزة التنافسية لمنظمات الأعمال الحديثة -دراسة ميدانية لمنظمة سويتلي لمحافظة الجلفة بالجزائر
Creators: name: Khaled, Gachi
Publisher: name: figshare
Year: 2020
Subjects: subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: FOS: Economics and business

description: هدف البحث دراسة مساهمة الابتكار التسويقي في تنمية الميزة التنافسية لمنظمة سويتلي في ولاية الجلفة، حيث تم إبراز هذا الدور ومدى أهميته في تنمية الميزة التنافسية، بالإضافة إلى اختبار العلاقة بين المتغيرات المستقلة و التابعة فيما يتعلق بمساهمة الابتكار التسويقي. حيث تم اعتماد المنهج الوصفي التحليلي كما تم تطبيق الدراسة المسحية الشاملة على جميع أفراد المجتمع الأصلي للدراسة من رؤساء مصالح واطارات وتم توزيع 30مفردة . وقد توصلت الدراسة الى مجموعة من النتائج اهمها: ? تبين من خلال التحليل أن الابتكار في مجال المنتج من خلال سعي المنظمة إلى خلق منتجات جديدة أو تجديد ما هو موجود أو القيام بالبحث و التطوير، يزيد من فاعلية الأنشطة التسويقية الأخرى؛ ? أكدت النتائج أن الابتكار في مجال المنتج هو أكثر العناصر فاعلية في المنظمة محل الدراسة بالمقارنة مع بقية العناصر الأخرى؛ وقد تم توصلت الدراسة الى مجموعة من التوصيات اعتمادا على الجانب التطبيقي ابرزها: ? على المنظمات القيام بالبحوث في مجال السوق و حاجات الزبائن و إعادة النظر في توجهاتها الحالية من أجل خلق القيمة للزبون من خلال المنتج ذو المواصفات العالية و السعر المناسب. ? بالنسبة للمنظمة محل الدراسة فهي لا تمتلك مصلحة خاصة بالتسويق، بالإضافة إلى عدم وجود أفراد متخصصين في مجال التسويق، مما يعني عدم وجود الركيزة الأساسية لقيام الابتكار التسويقي سواء في مجال المنتجات أو في أي مجال آخر من المجالات التسويقية، لذا عليها فصل المهام التسويقية عن المصلحة التجارية و إنشاء مصلحة خاصة بالتسويق حتى تتمكن من أداء الأنشطة التسويقية بفعالية؛ كذلك إنشاء نظام للحوافز و المكافآت خاص بالأفراد الذين يساهمون في العملية الإبتكارية من أجل تحفيز العاملين لديها على الابتكار. وايضا وضع صندوق للأفكار يمكن لجميع عمال المنظمة المساهمة فيه، باعتبار أن كل ابتكار يبدأ بفكرة.
Percolation critical exponents in cluster kinetics of pulse-coupled oscillators
Creators: name: Gwon, Gangyong
name: Cho, Young Sul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Transient dynamics leading to the synchrony of pulse-coupled oscillators has previously been studied as an aggregation process of synchronous clusters, and a rate equation for the cluster size distribution has been proposed. However, the evolution of the cluster size distribution for general cluster sizes has not been solved yet. In this paper, we study the evolution of the cluster size distribution from the perspective of a percolation model by regarding the number of aggregations as the number of attached bonds. Specifically, we derive the scaling form of the cluster size distribution with specific values of the critical exponents using the property that the characteristic cluster size diverges as the percolation threshold is approached from below. Through simulation, it is confirmed that the scaling form well explains the evolution of the cluster size distribution. Based on the distribution behavior, we find that a giant cluster of all oscillators is formed discontinuously at the threshold and also that further aggregation does not occur like in a one-dimensional bond percolation model. Finally, we discuss the origin of the discontinuous formation of the giant cluster from the perspective of global suppression in explosive percolation models. For this, we approximate the aggregation process as a cluster--cluster aggregation with a given collision kernel. We believe that the theoretical approach presented in this paper can be used to understand the transient dynamics of a broad range of synchronizations.
description: 7 pages, 5 figures
NOTES: Iron Age furnace at Dundridge in Aston Clinton; Eythrope House and its demolition in 1810-1811; Bulstrode Camp, Gerrards Cross; Wall-paintings in the church at Little Kimble; Paving tiles at Lower Woolstone; Conservation of wall-paintings in Radnage Church; Vault in the old churchyard at Taplow; Restoration of Willen Church; Third London Airport at Cubligton/Stewkley/Wing; Latimer, final interim report on the excavations
Creators: name: Brackley, H
name: Mowat, Duncan
name: Packe, A E
name: Branigan, Keith
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 18 (4), 323-328
Information Anatomy of Stochastic Equilibria
Creators: name: Marzen, Sarah
name: Crutchfield, James P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Information Theory (cs.IT)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: A stochastic nonlinear dynamical system generates information, as measured by its entropy rate. Some---the ephemeral information---is dissipated and some---the bound information---is actively stored and so affects future behavior. We derive analytic expressions for the ephemeral and bound informations in the limit of small-time discretization for two classical systems that exhibit dynamical equilibria: first-order Langevin equations (i) where the drift is the gradient of a potential function and the diffusion matrix is invertible and (ii) with a linear drift term (Ornstein-Uhlenbeck) but a noninvertible diffusion matrix. In both cases, the bound information is sensitive only to the drift, while the ephemeral information is sensitive only to the diffusion matrix and not to the drift. Notably, this information anatomy changes discontinuously as any of the diffusion coefficients vanishes, indicating that it is very sensitive to the noise structure. We then calculate the information anatomy of the stochastic cusp catastrophe and of particles diffusing in a heat bath in the overdamped limit, both examples of stochastic gradient descent on a potential landscape. Finally, we use our methods to calculate and compare approximations for the so-called time-local predictive information for adaptive agents.
description: 35 pages, 3 figures, 1 table; http://csc.ucdavis.edu/~cmg/compmech/pubs/iase.htm
Electronic Structure and Core Spectroscopy of Scandium Fluoride Polymorphs
Creators: name: De Araujo, Fabiana Machado Ferreira
name: Duarte-Ruiz, Daniel
name: Saßnick, Holger-Dietrich
name: Gentzmann, Marie C.
name: Huthwelker, Thomas
name: Cocchi, Caterina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The microscopic knowledge of the structural, energetic, and electronic properties of scandium fluoride is still incomplete, despite the relevance of this material as an intermediate for the manufacturing of Al-Sc alloys. In a work based on first-principles calculations and x-ray spectroscopy, we assess the stability and the electronic structure of six computationally predicted ScF$_3$ polymorphs, two of which correspond to experimentally resolved single-crystal phases. In the theoretical analysis based on density-functional theory (DFT), we identify similarities among the polymorphs based on their formation energies, charge-density distribution, and electronic properties (band gaps and density of states). We find striking analogies between the results obtained for the low- and high-temperature phases of the material, indirectly confirming that the transition occurring between them mainly consists of a rigid rotation of the lattice. With this knowledge, we examine the x-ray absorption spectra from the Sc and F K-edge contrasting first-principles results obtained from the solution of the Bethe-Salpeter equation on top of all-electron DFT with high-energy-resolution fluorescence detection measurements. The analysis of the computational results sheds light on the electronic origin of the absorption maxima and provides information on the prominent excitonic effects that characterize all spectra. Comparison with measurements confirms that the sample is mainly composed of the high- and low-temperature polymorphs of ScF$_3$. However, some fine details in the experimental results suggest that the probed powder sample may contain defects and/or residual traces of metastable polymorphs.
The Spokesman - April 14, 2000 Volume , Issue
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 2000
Subjects: Graduation Exercises
Drug Use, Drug Legalization
Morgan Events and Announcements
Greek Organizations - Honor Societies
Campus Clubs
Financial Aid - Scholarships, Pell Grants and Loans

description: Commencement 2000: The main ceremony will take place on May 21, 2000, at Hill Field House instead of Hughes Stadium due to ongoing construction. There will be a two-tier graduation process to accommodate the students and their guests, splitting the ceremony into two shifts to manage the crowd and ensure everyone can invite as many family members as they wish. Illegal Drug Use at Morgan: There have been recent incidents involving illegal substances found in residence halls, leading to increased police awareness and surveillance. Specific cases include a student in Pezavia O’Connell Hall being caught with cocaine and marijuana, and another incident where students indulged in drug use in a residence hall lounge. Philosophy Luncheons: The Department of Philosophy and Religious Studies hosts weekly luncheons to promote intellectual inquiry and dialogue outside of formal classes. Topics discussed include “Why You Should Not Vote,” “Racism in the Church,” “African-Americans and Philosophy,” “Islam on the Morgan Campus,” and others. Alpha Kappa Mu Honor Society Induction: On April 4, 29 students from various majors were inducted into the Pi Lambda Psi Chapter of the Alpha Kappa Mu Honor Society. The ceremony highlighted the importance of academic excellence and self-belief, with Dr. Melva Brown, M.D. as the keynote speaker. Unity Week: Organized by the Sophomore Class, Unity Week aimed to promote unity and uplift the Morgan State community. Each day of the week had a specific theme, such as Black Women’s Day, Family Day, Black Men’s Day, Solidarity Day, and Unity Day, featuring various activities and forums to foster community spirit. Honda Campus All-Star Challenge: Morgan State’s academic team participated in the Honda Campus All-Star Challenge, a national academic trivia tournament. The team placed in the “elite eight” and received $7,500 for their achievement.
Superfluid spin transport through antiferromagnetic insulators
Creators: name: Takei, So
name: Halperin, Bertrand I.
name: Yacoby, Amir
name: Tserkovnyak, Yaroslav
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A theoretical proposal for realizing and detecting spin supercurrent in an isotropic antiferromagnetic insulator is reported. Superfluid spin transport is achieved by inserting the antiferromagnet between two metallic reservoirs and establishing a spin accumulation in one reservoir such that a spin bias is applied across the magnet. We consider a class of bipartite antiferromagnets with Neel ground states, and temperatures well below the ordering temperature, where spin transport is mediated essentially by the condensate. Landau-Lifshitz and magneto-circuit theories are used to directly relate spin current in different parts of the heterostructure to the spin-mixing conductances characterizing the antiferromagnet|metal interfaces and the antiferromagnet bulk damping parameters, quantities all obtainable from experiments. We study the efficiency of spin angular-momentum transfer at an antiferromagnet|metal interface by developing a microscopic scattering theory for the interface and extracting the spin-mixing conductance for a simple model. Within the model, a quantitative comparison between the spin-mixing conductances obtained for the antiferromagnet|metal and ferromagnet|metal interfaces is made.
description: 10 pages, 4 figures
Exact results for a generalized spin-1/2 Ising-Heisenberg diamond chain with the second-neighbor interaction between nodal spins
Creators: name: Lisnyi, Bohdan
name: Strecka, Jozef
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The ground state and thermodynamics of a generalized spin-1/2 Ising-Heisenberg diamond chain with the second-neighbor interaction between nodal spins are calculated exactly using the mapping method based on the decoration-iteration transformation. Rigorous results for the magnetization, susceptibility, and heat capacity are investigated in dependence on temperature and magnetic field for the frustrated diamond spin chain with the antiferromagnetic Ising and Heisenberg interactions. It is demonstrated that the second-neighbor interaction between nodal spins gives rise to a greater diversity of low-temperature magnetization curves, which may include an intermediate plateau at two-third of the saturation magnetization related to the classical ferrimagnetic (up-up-up-down-up-up-...) ground state with translationally broken symmetry besides an intermediate one-third magnetization plateau reflecting the translationally invariant quantum ferrimagnetic (monomer-dimer) spin arrangement.
description: 14 pages, 8 figures
NOTES: John Smalrugge of Risborough: a case study of dual identity?; Cottages in Parsons Fee, Aylesbury; An agreement for the maintenance of the boundaries at Padbury churchyard; The Bell Hotel at Aston Clinton and the writer A W F
Creators: name: Kidd, Rex
name: Hanley, Hugh
name: Legg, Edward
name: Gulland, Diana
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 47 (1), 204-211
Taming Lagrangian Chaos with Multi-Objective Reinforcement Learning
Creators: name: Calascibetta, Chiara
name: Biferale, Luca
name: Borra, Francesco
name: Celani, Antonio
name: Cencini, Massimo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We consider the problem of two active particles in 2D complex flows with the multi-objective goals of minimizing both the dispersion rate and the energy consumption of the pair. We approach the problem by means of Multi Objective Reinforcement Learning (MORL), combining scalarization techniques together with a Q-learning algorithm, for Lagrangian drifters that have variable swimming velocity. We show that MORL is able to find a set of trade-off solutions forming an optimal Pareto frontier. As a benchmark, we show that a set of heuristic strategies are dominated by the MORL solutions. We consider the situation in which the agents cannot update their control variables continuously, but only after a discrete (decision) time, $τ$. We show that there is a range of decision times, in between the Lyapunov time and the continuous updating limit, where Reinforcement Learning finds strategies that significantly improve over heuristics. In particular, we discuss how large decision times require enhanced knowledge of the flow, whereas for smaller $τ$ all a priori heuristic strategies become Pareto optimal.
description: 10 pages, 7 figures
Learning Partially Observable Deterministic Action Models
Creators: name: Amir, Eyal
name: Chang, Allen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We present exact algorithms for identifying deterministic-actions effects and preconditions in dynamic partially observable domains. They apply when one does not know the action model(the way actions affect the world) of a domain and must learn it from partial observations over time. Such scenarios are common in real world applications. They are challenging for AI tasks because traditional domain structures that underly tractability (e.g., conditional independence) fail there (e.g., world features become correlated). Our work departs from traditional assumptions about partial observations and action models. In particular, it focuses on problems in which actions are deterministic of simple logical structure and observation models have all features observed with some frequency. We yield tractable algorithms for the modified problem for such domains. Our algorithms take sequences of partial observations over time as input, and output deterministic action models that could have lead to those observations. The algorithms output all or one of those models (depending on our choice), and are exact in that no model is misclassified given the observations. Our algorithms take polynomial time in the number of time steps and state features for some traditional action classes examined in the AI-planning literature, e.g., STRIPS actions. In contrast, traditional approaches for HMMs and Reinforcement Learning are inexact and exponentially intractable for such domains. Our experiments verify the theoretical tractability guarantees, and show that we identify action models exactly. Several applications in planning, autonomous exploration, and adventure-game playing already use these results. They are also promising for probabilistic settings, partially observable reinforcement learning, and diagnosis.
The Spokesman, Dec 9, 1999
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1999
Subjects: Politicans - Presidents and Vice Presidents
Musicians and Entertainers
Morgan State Controversy
Student Life

description: Maryland Democrats' Celebration for Obama: Maryland Democrats and Obama supporters celebrated the inauguration at the historic Mayflower Hotel in Washington, D.C. The event featured ice sculptures, an open bar, and high-profile attendees like Governor Martin O'Malley and Baltimore Mayor Sheila Dixon. Despite Dixon's recent indictment for theft and corruption, she appeared in good spirits, interacting with guests​(The Spokesman, Feb 4, 2…)​. "We Are One" Concert: A free concert at the Lincoln Memorial on January 18, 2009, featured performances by artists such as U2, Garth Brooks, Stevie Wonder, Shakira, and Beyonce. Celebrities like Denzel Washington and Tom Hanks also participated. The event was marked by high security, with no arrests but several injuries due to the cold weather​(The Spokesman, Feb 4, 2…)​​(The Spokesman, Feb 4, 2…)​. Morgan State University's Communication Issues During Ice Storm: On January 28, 2009, MSU faced criticism for its poor communication during an ice storm. Initially announcing a three-hour delay, the university eventually closed for the day, but only after many students and staff had already attempted to reach the icy campus. This delay in communication led to frustration and hazardous conditions for those traveling to the university​(The Spokesman, Feb 4, 2…)​​(The Spokesman, Feb 4, 2…)​. Obama's Inaugural Address and Challenges: President Obama, in his inaugural speech, emphasized a new era of responsibility and American renewal. He addressed significant challenges like the economic recession and high unemployment, likening the struggles to those faced during the Great Depression. The House passed an $819 billion stimulus bill as part of Obama's efforts to tackle these issues​(The Spokesman, Feb 4, 2…)​​(The Spokesman - Februar…)​. Student Perspectives on Obama's Inauguration: The article highlights the excitement and hope among Morgan State University students regarding Obama's inauguration. Students described their personal experiences witnessing the historic event, expressing pride and optimism for the future under Obama's leadership​
NOTES: On a tranchet from Gerrards Cross; The former vicarage of Chalfont St Peter; Excavations at Latimer villa, Chesham 1966; The arms of Burnham Abbey; Demolitions; Chalfont St Peter Church
Creators: name: D Lacaille, A
name: Bennell, John E G
name: Branigan, Keith
name: Packe, A E
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 18 (1), 91-97
Variational method for the calculation of critical distance between two Coulomb centers in graphene
Creators: name: Sobol, Oleksandr
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The supercritical instability in a system of two identical charged impurities in gapped graphene described in the continuous limit by the two-dimensional Dirac equation has been studied. The case where the charge of each impurity is subcritical, but their sum exceeds the critical value calculated in the version with a single Coulomb center, is considered. Using the developed variational method, the dependence of the critical distance $R_{\rm cr}$ between the impurities on their total charge is calculated. The $R_{\rm cr}$-value is found to grow as the total impurity charge increases and the quasiparticle band gap decreases. The results of calculations are compared with those obtained in earlier researches.
description: 10 pages, 2 figures
Flexibility of the quasi-non-uniform exchange-correlation approximation
Creators: name: Levämäki, H.
name: Vitos, L.
name: Punkkinen, M. P. J.
name: Kokko, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In our previous study [Phys. Rev. B 86, 201104 (2012)] we introduced the so called quasi-non-uniform gradient-level exchange-correlation approximation (QNA) and demonstrated it's strength in producing highly accurate equilibrium volumes for metals and their alloys within the density-functional theory. In this paper we extend the scheme to include the accuracy of bulk modulus as an additional figure of merit and show that this scheme is flexible enough as to allow the computation of accurate equilibrium volumes and bulk moduli at the same time. The power and feasibility of this scheme is demonstrated on NiAl and FeV binary alloys.
The Spokesman, Nov 18, 1999
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1999
Subjects: Politicans - Presidents and Vice Presidents
Musicians and Entertainers
Morgan State Controversy

description: Obama's Inauguration and Celebrations: The document details the celebratory events surrounding Barack Obama's inauguration as the 44th President of the United States. It describes the excitement and historical significance felt by attendees, including Maryland Democrats and Obama supporters at the Mayflower Hotel in Washington D.C. The events featured live entertainment, speeches, and high-profile attendees despite challenges like cold weather and large crowds. Inaugural Concert "We Are One": A free concert held at the Lincoln Memorial on January 18, 2009, celebrated Obama's inauguration. It featured performances by artists like U2, Garth Brooks, Stevie Wonder, and others, as well as speeches by celebrities like Denzel Washington and Tom Hanks. The concert was noted for its massive security operation and the lack of arrests despite the large crowd and freezing temperatures. MSU's Response to Snowstorm: The document criticizes Morgan State University's (MSU) communication during a severe snowstorm on January 28, 2009. The university initially announced a three-hour delay, later changing to a full closure, causing confusion and frustration among students and faculty who traveled in dangerous conditions. Obama's Early Presidential Actions: It discusses Obama's early days in office, focusing on his response to the economic recession and the approval of an $819 billion stimulus bill. It also highlights his executive orders to close the Guantanamo Bay detention camp and forbid torture, signaling a shift towards diplomacy and peace efforts in the Middle East. Call to Responsibility: Reflecting on Obama's inaugural speech, the document emphasizes the need for a new era of responsibility among Americans, encouraging educational opportunities and civic engagement to build a better future.
NOTES: Roman lead-lined coffins from Buckinghamshire; Possible bundle-planting in the Chilterns; Pottery mole traps; Great Missenden: A failed borough?
Creators: name: Babb, Linda
name: Damant, Chris
name: Drummond, David
name: Chenevix Trench, John
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 38, 244-252
The Spokesman, May 1999.pdf
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1999
Subjects: Graduation Information
Financial Aid - Scholarships, Pell Grants and Loans
Campus Safety and Crime
Student extracurricular activities and cultural events
Arts, Dance, Fashion, Theatre, Visual Displays

description: Graduating Seniors: Glenroy Clive Shelton, the Editor-in-Chief of the Spokesman, shares his journey from Jamaica to Morgan State University, highlighting his editorial work and aspirations. He expresses gratitude for the support received and encourages peers to strive for their best . An article titled "Graduating Seniors are Ready for the World" by Jennifer Harris-Gaynor and Kevin B. Howell celebrates the achievements and future plans of graduating seniors, emphasizing their readiness to tackle the real world . Golden Key Scholarship: Bryan Watson, a Jamaican national residing in Elmont, NY, is awarded the Golden Key National Honor Society Undergraduate Scholarship. Watson, an Electrical Engineering major with a 4.0 GPA, is actively involved in multiple engineering societies and student organizations . Safety of Living Off-Campus: An article by Ryan Clark discusses security concerns among students living off-campus, particularly in the Northwood apartments. It addresses the mixed perceptions of safety and the measures taken by campus and private security to ensure student safety . Senior Art Exhibit: The Montebello Complex Art Gallery showcases the work of graduating art students for the first time in two years. The exhibit includes various forms of art such as sculptures, paintings, and drawings. Senior Graphic Design major, Rahiim Hill, discusses the challenges and opportunities within the art department . Dr. Nathan Mitchell Carter: Dr. Carter, Chairperson of the Fine Arts Department and Conductor of the prestigious Morgan State University Choir, is highlighted for his contributions to the university and his musical excellence. His journey from Selma, Alabama, to leading the MSU Choir on international tours is detailed .
Improved stability for odd-dimensional orthogonal group
Creators: name: Sinchuk, Sergey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We compute the kernel of the stabilization map for $K_1$-functors modeled on split Chevalley groups of types $B_l, C_l, E_l$ one step below the stable range. For the groups of type $B_l$ this implies early injective stability for $K_1(B_l, R)$ over a certain class of rings.
Standby efficiency and thermocline degradation of a packed bed thermal energy storage: An experimental study
Creators: name: Schwarzmayr, Paul
name: Birkelbach, Felix
name: Walter, Heimo
name: Hofmann, Renè
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The waste heat potential from industrial processes is huge and if it can be utilized it may contribute significantly to the mitigation of climate change. A packed bed thermal energy storage system is a low-cost storage technology that can be employed to enable the utilization of waste heat from industrial processes. This system can be used to store excess heat and release this energy when it is needed at a later time. To ensure the efficient operation of a packed bed thermal energy storage its characteristics in standby mode need to be studied in great detail. In the present study, the standby efficiency and thermocline degradation of a lab-scale packed bed thermal energy storage in standby mode is experimentally investigated for different flow directions of the heat transfer fluid during the preceding charging period. Results show that, for long standby periods, the standby efficiency is significantly affected by the flow direction. The maximum entropy generation rate for a 22-hour standby process with the flow direction of the heat transfer fluid from bottom to top in the preceding charging process is twice as high as for the same process with the reverse flow direction. Energy and exergy efficiencies are lower for the process with reverse flow direction by 5% and 18% respectively.
description: submitted to Applied Energy
NOTES: The probable hillfort at Desborough and a hundredal meeting place revisited; 'The men who dwell in open country': Buckinghamshire names with OE 'Fildena'; 'New' Buckinghamshire Anglo-Saxon charter bounds 2: Aspley Guise; The Buckinghamshire Gardens Trust Research and Recording Project 2014-15; Lost and Found: Objects recorded on the Portable Antiquities Scheme database
Creators: name: Farley, Michael
name: Bailey, Keith A
name: Rutherford, Sarah
name: Tyrrell, Ros
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 56, 143-172
Comparison of tree-based ensemble algorithms for merging satellite and earth-observed precipitation data at the daily time scale
Creators: name: Papacharalampous, Georgia
name: Tyralis, Hristos
name: Doulamis, Anastasios
name: Doulamis, Nikolaos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Merging satellite products and ground-based measurements is often required for obtaining precipitation datasets that simultaneously cover large regions with high density and are more accurate than pure satellite precipitation products. Machine and statistical learning regression algorithms are regularly utilized in this endeavour. At the same time, tree-based ensemble algorithms are adopted in various fields for solving regression problems with high accuracy and low computational cost. Still, information on which tree-based ensemble algorithm to select for correcting satellite precipitation products for the contiguous United States (US) at the daily time scale is missing from the literature. In this study, we worked towards filling this methodological gap by conducting an extensive comparison between three algorithms of the category of interest, specifically between random forests, gradient boosting machines (gbm) and extreme gradient boosting (XGBoost). We used daily data from the PERSIANN (Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks) and the IMERG (Integrated Multi-satellitE Retrievals for GPM) gridded datasets. We also used earth-observed precipitation data from the Global Historical Climatology Network daily (GHCNd) database. The experiments referred to the entire contiguous US and additionally included the application of the linear regression algorithm for benchmarking purposes. The results suggest that XGBoost is the best-performing tree-based ensemble algorithm among those compared...
The Ultrametric Constraint and its Application to Phylogenetics
Creators: name: Moore, Neil C. A.
name: Prosser, Patrick
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: A phylogenetic tree shows the evolutionary relationships among species. Internal nodes of the tree represent speciation events and leaf nodes correspond to species. A goal of phylogenetics is to combine such trees into larger trees, called supertrees, whilst respecting the relationships in the original trees. A rooted tree exhibits an ultrametric property; that is, for any three leaves of the tree it must be that one pair has a deeper most recent common ancestor than the other pairs, or that all three have the same most recent common ancestor. This inspires a constraint programming encoding for rooted trees. We present an efficient constraint that enforces the ultrametric property over a symmetric array of constrained integer variables, with the inevitable property that the lower bounds of any three variables are mutually supportive. We show that this allows an efficient constraint-based solution to the supertree construction problem. We demonstrate that the versatility of constraint programming can be exploited to allow solutions to variants of the supertree construction problem.
NOTES: Two thirteenth-century seals; The geology of Woad Farm Gravel Pit, Newport Pagnell; A windmill mound at Penn Bottom; Religious observance in early Victorian Wolverton.
Creators: name: Spencer, B
name: Radley, J
name: Cauvain, Stanley
name: Richards, Peter
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 31, 234-240
The Spokesman - April 1999
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1999
Subjects: Student Government Association
Editorials and Opinions, Editor’s Comments
Alumni Engagement
Student Activism
Memorials and Obituaries

description: SGA Elections Controversy: The Student Government Association (SGA) elections were marred by accusations of foul play and misconduct. Brandi Slaughter, the SGA vice-president, faced allegations of accepting a late application from a candidate for SGA president, which she denied. The election process saw hostile interactions and accusations among candidates, leading to a contentious atmosphere. Election Results: Julian Dash and Stacey Jones were elected as the new SGA President and Vice President, respectively. Despite the controversies, they promised to address students' concerns and boost campus involvement. Editorial on Oscar Representation: A commentary criticized the lack of African-American representation at the 71st Annual Academy Awards, highlighting how African-American movies and actors were often overlooked despite their significant contributions. Alumni House: The article discussed the relocation and purpose of the Alumni House at Morgan State University. It aims to serve as a hub for alumni to network and stay connected with the university, with plans for a science and math center for at-risk students. KUUMBA Program: The KUUMBA mentoring program for middle school students in Baltimore was revitalized, focusing on enriching students' lives through various programs and activities led by Morgan State University students. Tribute to Judge Harry A. Cole: The newspaper paid tribute to Judge Harry A. Cole, a distinguished alumnus of Morgan State University, who was Maryland’s first black senator and the Court of Appeals’ first black judge. His contributions to the university and community were celebrated. Opinions and Editorials: Several opinion pieces addressed various topics, including the allocation of student fees, the responsibilities of black men towards black women, and the need for students to perpetuate knowledge rather than ignorance.
Reviews
Creators: name: Howarth, Jeremy
name: Hunn, Jonathan R
name: Wilson, Nigel
name: Zeepvat, Bob
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 55, 309-313
description: The North Marston story: a history of the village, by Sue Chaplin and John Spargo; Solent-Thames research framework for the historic environment: research assessment and research agenda, edited by Gill Hey and Jill Hind; The life and times of a Charlbury Quaker: the journals of William Jones 1784-1818, edited by Hannah Jones; Broughton, Milton Keynes, Buckinghamshire: The evolution of a south Midlands landscape, by Rob Atkins, Elizabeth Popescu, Gareth Rees and Dan Stansbie; The secrets of Q Central: How Leighton Buzzard shortened the Second World War, edited by Paul Brown and Edwin Herbert;Bloody British History: Buckinghamshire, by Eddy Brazil
Reviews: Industrial Archaeology: A handbook; Secret days: Code-breaking in Bletchley Park; Iron Age ritual: A hillfort and evidence for a minster at Aylesbury; Bishop Wake's Summary of Visitation Returns from the Diocese of London 1706-1715 [Part 2 includes Buckinghamshire]; The Christopher Tower Collection at Ashridge; Aylesbury then and now in colour
Creators: name: Zeepvat, Bob
name: Parker, Graham
name: Edwards, Yvonne
name: Wilson, Nigel
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 53, 310-315
Reviews: Portrait of a shoot; An historical atlas of Oxfordshire; Gone with the wind: Windmills and those around Tring; An illustrated history of early Buckinghamshire
Creators: name: Lamb, George
name: Gulland, Peter
name: Fox, Sue
name: Baker, David
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 52, 264-268
Comparison of machine learning algorithms for merging gridded satellite and earth-observed precipitation data
Creators: name: Papacharalampous, Georgia
name: Tyralis, Hristos
name: Doulamis, Anastasios
name: Doulamis, Nikolaos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Gridded satellite precipitation datasets are useful in hydrological applications as they cover large regions with high density. However, they are not accurate in the sense that they do not agree with ground-based measurements. An established means for improving their accuracy is to correct them by adopting machine learning algorithms. This correction takes the form of a regression problem, in which the ground-based measurements have the role of the dependent variable and the satellite data are the predictor variables, together with topography factors (e.g., elevation). Most studies of this kind involve a limited number of machine learning algorithms, and are conducted for a small region and for a limited time period. Thus, the results obtained through them are of local importance and do not provide more general guidance and best practices. To provide results that are generalizable and to contribute to the delivery of best practices, we here compare eight state-of-the-art machine learning algorithms in correcting satellite precipitation data for the entire contiguous United States and for a 15-year period. We use monthly data from the PERSIANN (Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks) gridded dataset, together with monthly earth-observed precipitation data from the Global Historical Climatology Network monthly database, version 2 (GHCNm). The results suggest that extreme gradient boosting (XGBoost) and random forests are the most accurate in terms of the squared error scoring function. The remaining algorithms can be ordered as follows from the best to the worst: Bayesian regularized feed-forward neural networks, multivariate adaptive polynomial splines (poly-MARS), gradient boosting machines (gbm), multivariate adaptive regression splines (MARS), feed-forward neural networks, linear regression.
The Spokesman, Mar 12, 1999
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1999
Subjects: Student Government Association
Morgan State Controversy
Campus Safety and Crime
Student Activism
Student extracurricular activities and cultural events
WEAA FM
Arts, Dance, Fashion, Theatre, Visual Displays

description: SGA Achievements and Challenges: SGA President Seymour Chambers highlighted various accomplishments, including financial stability by clearing previous debts, introducing new services, and organizing successful programs and events. Despite many successes, there were challenges, such as the underwhelming Homecoming week and personnel changes within the SGA. Health Concerns in McMechen Building: Persistent odors in the McMechen building, believed to be caused by a combination of natural gas, sewer gas, and truck exhaust, have led to health complaints from faculty and students. Efforts to address the issue have been ongoing, with inspections and potential solutions being explored. Police Brutality Exposé: A special feature on police brutality highlighted cases of excessive force and the lack of accountability for police misconduct. The report discussed national and local incidents, emphasizing the need for systemic reforms and greater oversight. Forum on Black Family Values: WEAA held a forum on Black Family Values, focusing on education, politics, relationships, and economics. Panelists emphasized the importance of strong family relationships and mentoring within the black community. Student Activities and Events: Coverage of upcoming events and activities, including the SGA election debates, the Mr. and Mrs. Morgan Pageant, and various cultural and educational events around Baltimore. Daytona Beach Spring Break: A report on the popularity of Daytona Beach as a spring break destination for black college students, noting the city's preparations and concerns regarding the event. WEAA FM's Recognition: WEAA-FM 88.9, Morgan State University’s public radio, was recognized as the Major Market Jazz Station of the Year, reflecting its innovative programming and contribution to the genre. Cultural and Entertainment Highlights: Reviews of plays and music, including August Wilson's "Jitney" at Center Stage and Nicole Renee's self-titled album, as well as coverage of local theater performances by Morgan’s students.
REVIEWS: Prehistoric and later settlement and landscape from Chiltern scarp to Aylesbury Vale: The archaeology of the Aston Clinton bypass; The cultural heritage of Chiltern woods: an illustrated guide to archaeological features; Leighton Buzzard and Linslade: a history; John Piper, Myfanwy Piper, lives in art; Buckinghamshire's favourite churches
Creators: name: Farley, Michael
name: Gem, Richard D H
name: Lewington, Bruce
name: Hardy, Michael
Publisher: name: Archaeology Data Service
Year: 2023

description: Records of Buckinghamshire, 50, 121-126
Interactive Policy Learning through Confidence-Based Autonomy
Creators: name: Chernova, Sonia
name: Veloso, Manuela
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We present Confidence-Based Autonomy (CBA), an interactive algorithm for policy learning from demonstration. The CBA algorithm consists of two components which take advantage of the complimentary abilities of humans and computer agents. The first component, Confident Execution, enables the agent to identify states in which demonstration is required, to request a demonstration from the human teacher and to learn a policy based on the acquired data. The algorithm selects demonstrations based on a measure of action selection confidence, and our results show that using Confident Execution the agent requires fewer demonstrations to learn the policy than when demonstrations are selected by a human teacher. The second algorithmic component, Corrective Demonstration, enables the teacher to correct any mistakes made by the agent through additional demonstrations in order to improve the policy and future task performance. CBA and its individual components are compared and evaluated in a complex simulated driving domain. The complete CBA algorithm results in the best overall learning performance, successfully reproducing the behavior of the teacher while balancing the tradeoff between number of demonstrations and number of incorrect actions during learning.
A broad-line quasar with unexplained extreme velocity offsets: post-shock outflow?
Creators: name: Rusakov, V.
name: Steinhardt, C. L.
name: Schramm, M.
name: Faisst, A. L.
name: Masters, D.
name: Mobasher, B.
name: Pattarakijwanich, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The quasar SDSS 0956+5128 exhibits three distinct velocity components with large offsets in emission: the systemic velocity of [O II], [O III] and [Ne III] narrow lines have redshift $z=0.7142$; broad Mg II line is shifted by $-1200$ km s$^{-1}$ with respect to the narrow lines; broad H$α$, H$β$ lines are at $-4100$ km s$^{-1}$. We present new Hubble Space Telescope spectra of Ly$α$ and C IV emission lines and high-resolution images of the quasar. The offsets of these lines are consistent with the velocity component of the Balmer emission, and the photometry in optical and near-infrared wavelengths does not show any signs of recent mergers in the host galaxy or irregularities in the location of the quasar. The data do not confirm predictions of the previous most-likely hypotheses involving a special orientation and morphology of the quasar disk, such as in the recoiling black hole scenario, neither it is consistent with accretion disk winds. Instead, based on the cumulative evidence, we propose a new scenario, in which the broad line region is in the state of outflow caused by a strong shock wave, with a supernova as a possible event for producing the shock ejecta.
description: 15 pages, 4 figures, accepted for publication in ApJ
The Spokesman, February 1999.pdf
Creators: name: Team, The Editorial
Publisher: name: Morgan State University
Year: 1999
Subjects: Campus Safety and Crime
HBCUs
Morgan Events and Announcements
Student extracurricular activities and cultural events
Sports - Morgan State
Campus and Local News
News - International

description: Doctoral Program in Public Health: Morgan State University is set to become the first historically black college or university (HBCU) in the U.S. to offer a doctoral degree in Public Health, focusing on the production of practitioners to address urban health issues such as drug abuse, violence, HIV-AIDS, and sexually transmitted diseases. Campus Security Enhancements: The university has increased its campus security by hiring ten new officers, referred to as the "Magnificent 10," to combat crime through community-based policing and ensure the safety of students and faculty. Student Achievements: Danielle Moscou, a Morgan State student, received an AIFS International scholarship, allowing her to study abroad in Florence, Italy, promoting international understanding through education. Black Love at Morgan: An editorial discusses the challenges of finding lasting romantic relationships at Morgan State University, addressing issues like gossip, denial, and deception within the campus community. HBCU Preservation Society: The establishment of the HBCU Preservation Society aims to celebrate, collect, and commemorate the legacy of historically black colleges and universities, with plans to create a museum showcasing their impact. Athletic Achievements: The Men's Basketball team has shown significant improvement, winning six out of their last seven games, with standout performances by players like Rasheed Sparks and Curtis King. Local and International News: Coverage includes Maryland's reconsideration of its ban on "unnatural sex," the high rates of syphilis and gonorrhea in Baltimore, and the U.S. government's actions against Iraq. An analysis of the U.S.-Iraq conflict discusses the geopolitical and economic implications of the ongoing tensions and military actions. Campus Life and Opinions: Discussions on the new security measures at Blount Towers, the significance of Valentine's Day, and the problem of hazing in Greek life. A feature on the importance of black love and the challenges faced by students in maintaining healthy relationships.