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Articles 34441 - 34470 of 1111749
Full-Text Articles in Entire DC Network
Steep Decline In Diadema Antillarum Populations In Honduras’ Mesoamerican Barrier Reef (2014-2022) And Its Impact On Benthic Communities, Rebecca Cramp, Dan Exton, Max Dv Bodmer, Nathalie Lubbock, Miriam Reverter
Steep Decline In Diadema Antillarum Populations In Honduras’ Mesoamerican Barrier Reef (2014-2022) And Its Impact On Benthic Communities, Rebecca Cramp, Dan Exton, Max Dv Bodmer, Nathalie Lubbock, Miriam Reverter
School of Biological and Marine Sciences
Many Caribbean coral reefs shifted from coral to macroalgal-dominated communities following the die-off of the herbivorous urchin Diadema antillarum in the 1980s. Whilst most reefs remained algal-dominated, some have shown signs of coral recovery. This study compared benthic cover and D. antillarum populations (2014–2022) in two differently degraded reef systems in Honduras: Banco Capiro (Tela Bay) and Utila Island. In 2014, Banco Capiro had high coral cover (~ 59%) and D. antillarum densities (155 individuals/100 m 2), whereas Utila’s reefs had low coral cover (~ 17%) and low D. antillarum densities (2.5 individuals/100 m 2). By 2022, D. …
The Functional Efficiency Of Healing Gardens Elements And Its Impact On The Functional Aspect Of Hospitals, Menna Allah Hesham Mohammed, Heba Mohamed Abdou
The Functional Efficiency Of Healing Gardens Elements And Its Impact On The Functional Aspect Of Hospitals, Menna Allah Hesham Mohammed, Heba Mohamed Abdou
Mansoura Engineering Journal
Communication with nature has a positive effect on human health and well-being in different civilizations all time. But technological development caused the production of purely functional buildings that are far from communicating with nature, although some buildings contain gardens to achieve communication with nature, their elements are poor. Therefore, healing gardens are considered one of the main elements to raise the efficiency of the functional performance of the health building because they contain the resting places and healing departments. Therefore, this study focuses on determining the functional criteria for the elements of the garden that must be considered when designing …
The Security Trilemma: A Critical Research Agenda, Adem Yavuz Elveren, David M. Fields
The Security Trilemma: A Critical Research Agenda, Adem Yavuz Elveren, David M. Fields
Working Papers
No abstract provided.
The Case For “Constructive Gridlock” In Independent Agencies, Jeffrey Manns
The Case For “Constructive Gridlock” In Independent Agencies, Jeffrey Manns
Texas A&M Law Review
Critics of President Trump have alleged that he has reduced independent agencies to mere extensions of the executive branch during his second term. The reality is that Democratic and Republican presidents routinely leverage the opportunity to reshape independent agencies in openly partisan ways because presidents have majority control of the appointments for the leadership of virtu ally all agencies. I examine a large data set of independent agency votes from the Obama and first Trump terms to show that independent agency commissioners vote in predictably partisan ways when addressing substantive policy changes. The partisan design of independent agencies undercuts agency …
That Old College Try: Judge-Made Monopolies In The Market For Affinity Goods, John A. Rothchild
That Old College Try: Judge-Made Monopolies In The Market For Affinity Goods, John A. Rothchild
Texas A&M Law Review
There is a large market for goods such as t-shirts, coffee mugs, posters, and baseball caps that are emblazoned with the names and symbols of culturally prominent institutions—universities, athletic teams, musical bands, automobile brands. We buy, wear, and display those goods to express our affinity with the referenced institution. The owners of the trade symbols that adorn these items, which this Article refers to as “affinity goods,” jealously guard what they claim is their sole right, under the trademark laws, to authorize the use of their symbols as decoration. They have brought numerous lawsuits aimed at establishing and enforcing this …
25 Conference Program - Beneficiation Of Phosphates X, Patrick Zhang, Phong Vo, Erika Rova, André Carlos Silva, Ewan Wingate, Trong Dang-Vu
25 Conference Program - Beneficiation Of Phosphates X, Patrick Zhang, Phong Vo, Erika Rova, André Carlos Silva, Ewan Wingate, Trong Dang-Vu
Beneficiation of Phosphates X
No abstract provided.
Exploring Runtime Evolution In Android: A Cross-Version Analysis And Its Implications For Memory Forensics., Babangida Bappah
Exploring Runtime Evolution In Android: A Cross-Version Analysis And Its Implications For Memory Forensics., Babangida Bappah
LSU Master's Theses
Userland memory forensics has become a critical component of smartphone investigations and incident response, enabling the recovery of volatile evidence such as deleted messages from end-to-end encrypted apps and cryptocurrency transactions. However, these forensics tools, particularly on Android, face significant challenges in adapting to different versions and maintaining reliability over time due to the constant evolution of low-level structures critical for evidence recovery and reconstruction. Structural changes, ranging from simple offset modifications to complete architectural redesigns, pose substantial maintenance and adaptability issues for forensic tools that rely on precise structure interpretation. Thus, this paper presents the first systematic study of …
Seeing What Matters: Safety-Critical Semantic Segmentation Via Transfer Learning On Construction Sites, Obiora J. Odugu
Seeing What Matters: Safety-Critical Semantic Segmentation Via Transfer Learning On Construction Sites, Obiora J. Odugu
LSU Master's Theses
Autonomous robots are increasingly deployed on construction sites for tasks such as progress monitoring, inspection, and safety assessment. For these robots to operate effectively, they must perceive and interpret complex, dynamic environments populated by workers, machinery, and unstructured terrain. Achieving reliable perception depends on high performing semantic segmentation models trained on large volumes of annotated data—an expensive and logistically challenging requirement in construction due to privacy restrictions, variable site access, and slow digitalization. This research addresses the challenge of limited labeled data by investigating transfer learning as a label-efficient approach for construction-site segmentation. Specifically, it explores whether road construction imagery—abundant …
Dynamics Of Meandering River Cutoffs And Post-Cutoff Sedimentation, Dylan T. Shoemaker
Dynamics Of Meandering River Cutoffs And Post-Cutoff Sedimentation, Dylan T. Shoemaker
LSU Doctoral Dissertations
Meander cutoffs are pivotal events in the life cycle of rivers, abruptly adjusting flow fields and reshaping riparian environments. The consequences of cutoffs extend beyond geomorphology, influencing aquatic ecosystems, sediment storage within the floodplain, nutrient and contaminant cycling, and risks to human infrastructure. Yet, research of cutoffs has not produced a clear conceptual understanding of the persistence of oxbow lakes, and the dynamics of post-cutoff planform change that aligns with the observations of cutoff events on a global scale. This research aims to use satellite imagery to further clarify our understanding of the post-cutoff morphometrics and processes that constrain the …
Preparation, High-Temperature And Low-Temperature Performance Evaluation Of Bio-Based Polyurethane Modified Asphalt, Junfeng Gao, Guixiu Guo, Hainian Wang, Chonghui Wang, Dongzhao Jin
Preparation, High-Temperature And Low-Temperature Performance Evaluation Of Bio-Based Polyurethane Modified Asphalt, Junfeng Gao, Guixiu Guo, Hainian Wang, Chonghui Wang, Dongzhao Jin
Michigan Tech Publications
To achieve sustainable and environmentally friendly development of pavement materials, it is essential to identify alternative materials to reduce dependence on petroleum resources. This study aims to functionalize castor oil (CO) with isocyanates to prepare bio-based polyurethane-modified asphalt (Bio-PUMA), determine its optimal preparation parameters, and evaluate the effects of Bio-PU content and isocyanate index (R) on the high- and low-temperature performance of Bio-PUMA. The orthogonal experimental design (OED), grey correlation grade analysis (GCGA), penetration, softening point, ductility, and viscosity were conducted to determine the preparation process and evaluate the performances of Bio-PUMA. The results show that the preparation factors affecting …
Ireland Blossoms Through Multiculturalism - Designing For Community Connection, Julia Kuczera, Shirley Casey, Hilary Kenna
Ireland Blossoms Through Multiculturalism - Designing For Community Connection, Julia Kuczera, Shirley Casey, Hilary Kenna
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
Assessing Demand And Simulating Feasibility For Commuter Rail In Lagging Regional Areas. Case Study: Sligo, Holly Briere-Edney, Brian Mccann
Assessing Demand And Simulating Feasibility For Commuter Rail In Lagging Regional Areas. Case Study: Sligo, Holly Briere-Edney, Brian Mccann
SURE Journal: Science Undergraduate Research Experience Journal
No abstract provided.
The Tax Adviser, Volume 2, Number 11, November 1971, American Institute Of Certified Public Accountants
The Tax Adviser, Volume 2, Number 11, November 1971, American Institute Of Certified Public Accountants
Tax Adviser
No abstract provided.
Form 706-Format And Problems Occasioned By Community Property, Robert L. Bean
Form 706-Format And Problems Occasioned By Community Property, Robert L. Bean
Tax Adviser
No abstract provided.
Applications Of Virtual Reality In Biomechanics In Sports, Kerstin Witte
Applications Of Virtual Reality In Biomechanics In Sports, Kerstin Witte
ISBS Proceedings Archive
This paper gives an overview of possibilities of using virtual reality (VR) in sports biomechanics. To achieve this, a short systematical literature review with some examples is given. However, little is known about the extent to which VR tools can support training and learning of complex sports movements. The aim of this work is to show how a head-mounted display (HMD) can promote the learning and training process of gymnastic elements on a balance beam. For this purpose, three key issues were defined, which were addressed in four own research studies: (1) Influence of an HMD on the execution of …
Effect Of Handlebar Height On Lower-Limb Biomechanics And Upper Body Kinematics In Elite Pursuit Cyclists, Daniel Williams, Marcus Dunn, Paul Worsfold, Deborah Newton, Steve H. Faulkner, Francesca D'Andrea, Jon Wheat
Effect Of Handlebar Height On Lower-Limb Biomechanics And Upper Body Kinematics In Elite Pursuit Cyclists, Daniel Williams, Marcus Dunn, Paul Worsfold, Deborah Newton, Steve H. Faulkner, Francesca D'Andrea, Jon Wheat
ISBS Proceedings Archive
The purpose of this study was to investigate the effect of handlebar height changes on upper body posture and lower-limb biomechanics in elite pursuit cyclists. Sixteen (9 male, 7 female) cyclists completed 1-minute cycling bouts with different handlebar heights (Preferred, -30 mm and +30 mm). 2D motion capture was used to record upper and lower body joint kinematics and integrated with instrumented force pedals to measure crank and lower limb joint kinetics. A general linear mixed model and repeated measures ANOVA were used to assess discrete and time-series variables. The findings indicate that elite cyclists can adapt ankle and hip …
Introducing ‘Slide’ - A Portable Device For Assessing Skin-Surface Injury Risk Via The Maxwell Tribo Index, Finlay Taggart, Maxwell Macfarlane, John Mcluckie, Eric O'Donnell, Peter Theobald
Introducing ‘Slide’ - A Portable Device For Assessing Skin-Surface Injury Risk Via The Maxwell Tribo Index, Finlay Taggart, Maxwell Macfarlane, John Mcluckie, Eric O'Donnell, Peter Theobald
ISBS Proceedings Archive
Synthetic turf enhances sports participation through durability, high usage, and low maintenance, but some systems increase the risk of skin abrasions compared to natural grass. This study presents the SLIDE - a portable, cost-effective device that replicates skin-surface interactions and applies the Maxwell Tribo Index (MTI) to quantify skin injury risk per surface. The initial prototype achieved target velocities and pressures, supporting its relevance for on-site testing. Ongoing validation aims to establish correlation between SLIDE and SID outputs across a representative range of MTI values.
Effects Of Lower Limb Ballistic Training On Leg Kicking And Overall Performance In Swimming: Case Study, Ayman W. Sadek, Paul Grimshaw
Effects Of Lower Limb Ballistic Training On Leg Kicking And Overall Performance In Swimming: Case Study, Ayman W. Sadek, Paul Grimshaw
ISBS Proceedings Archive
This case study aimed to investigate the effects of a lower limb ballistic training program on lower body strength, front crawl flutter kick performance, and sprint swimming performance over 50 meters in a male recreational swimmer. One participant was recruited, and completed a 6-week training program, with pre- and post-tests assessing 50 m front crawl sprint time, 25 m flutter kick sprint time, stroke length (SL), one-repetition maximum (1-RM) squat, and countermovement jump (CMJ) performance. The participant showed improvements in the swimming performance and in SL, as well as some CMJ variables. However, no inferential statistics was conducted due to …
The Effect Of Baseball Bat Diameter On Batted Ball, Hirotaka Nakashima
The Effect Of Baseball Bat Diameter On Batted Ball, Hirotaka Nakashima
ISBS Proceedings Archive
The purpose of this study was to investigate the effect of bat diameter on the batted ball characteristics in baseball. A custom-made bat swing machine swung bat horizontally and hit a ball floating in the air using wind pressure. Three bats of different diameter (6.30 cm, 5.73 cm, and 5.32 cm) were used with 30 trials per bat. Three high-speed video cameras were used to record the movements of the bat and ball near the impact and compared the batted ball characteristics. As a result, bat diameter did not appear to have a significant effect on batted balls.
Differences In Trunk And Hip Isokinetic Strength Performance Among Cheerleaders With Varying Somersault Technical Levels, Yi-Zhu Liao, Shih-Chung Cheng, Wen-Tzu Tang
Differences In Trunk And Hip Isokinetic Strength Performance Among Cheerleaders With Varying Somersault Technical Levels, Yi-Zhu Liao, Shih-Chung Cheng, Wen-Tzu Tang
ISBS Proceedings Archive
啦啦隊中的站立後空翻 (SBTS) 需要精確的速度控制和軀幹-臀部協調，並依靠特定肌肉的力量。雖然 SBTS 通常可以實現，但更高級的站立全空翻 (SF) 需要更大的力量。這項研究評估了 17 名啦啦隊在 3 種不同速度（軀幹：30-120°/s；臀部：60-300°/s）下的軀幹和臀部等速力量。參與者根據技能分組：僅 SBTS（NSF，n = 9）和同時進行 SBTS 和 SF（SF，n = 8）。雙向變異數分析顯示 SF 組的髖部屈曲峰值扭矩明顯較大（p < .05）。髖部伸展的顯著交互作用顯示 NSF 中 300°/s 和 180°/s 時的扭矩下降（p < .05），而在 SF 中沒有觀察到。研究結果強調了強大的髖屈肌和保持高速髖伸展對於空翻動作的重要性，為有針對性的啦啦隊訓練提供了指導。
The Effect Of Augmented Reality Glasses On Elderly And Young Adults – A Preliminary Study, Sangyup Lee, Melissa Mache, Chengtu Hsieh
The Effect Of Augmented Reality Glasses On Elderly And Young Adults – A Preliminary Study, Sangyup Lee, Melissa Mache, Chengtu Hsieh
ISBS Proceedings Archive
Falls are a major concern among older adults, often linked to gait adaptations influenced by aging and environmental factors. This study examined the effects of augmented reality (AR) glasses on gait in young and older adults under three conditions: walking without AR glasses (W/O), with AR glasses (AR), and with AR glasses while performing a cognitive task (AR + CQ). Twelve participants (six younger, six older) walked on a treadmill at their preferred speed while gait was analysed using OpenCap. Compared to younger adults, older adults exhibited shorter stride length and narrower step width under AR conditions. Younger adults showed …
A Pilot Study To Evaluate Sagittal Kinematic Variables In Accelerated Run Using Openpose Markerless Motion Capture System, Mizuki Kitamura, Mitsuo Otsuka
A Pilot Study To Evaluate Sagittal Kinematic Variables In Accelerated Run Using Openpose Markerless Motion Capture System, Mizuki Kitamura, Mitsuo Otsuka
ISBS Proceedings Archive
This study evaluated the agreement between OpenPose markerless and marker-based methods in analyzing sprint start performance. Four male students performed ten sprint starts. The Bland-Altman test for average center of mass (COM) horizontal velocity from the beginning motion to 1-m position of the OpenPose markerless method showed a fixed bias of -0.02 m/s, 95% limits of agreement (LoA) from −0.10 to 0.06 m/s, and a proportional bias of r = −0.47. For the 1-m running time, fixed bias was −0.00 s, 95% LoA ranged from −0.09 to 0.09 s, and proportional bias was r = 0.39. In the calculation of …
Characterizing Cardiac-Locomotion Synchronization And Heart Rate/Gait Cycle Fluctuations: A Pilot Study, Minato Kawaguchi, Kousuke Meguro, Kentaro Takahashi
Characterizing Cardiac-Locomotion Synchronization And Heart Rate/Gait Cycle Fluctuations: A Pilot Study, Minato Kawaguchi, Kousuke Meguro, Kentaro Takahashi
ISBS Proceedings Archive
This study investigated cardiac-locomotion synchronization (CLS) during indoor treadmill and outdoor free walking, examining its environmental differences and relationships with heart rate/gait rhythm variability. Twelve participants used wearable ECG and accelerometer sensors for data collection during self-paced brisk walking. We analysed the last 10 minutes of stable walking, calculating mean period, coefficient of variation, and detrended fluctuation analysis (DFA) slope α. CLS was quantified by the 'Sync rate', the temporal proportion of consistent gait cycle to R-R interval ratios. Results showed significantly higher Sync rates in outdoor walking. Outdoor gait rhythm fluctuation α tended to decrease with increased Sync rate. …
Impact Techniques For Controlling Ball Trajectories Height In Soccer Instep Kicking, Koichiro Inoue, Neal Smith, Hiroyuki Nunome
Impact Techniques For Controlling Ball Trajectories Height In Soccer Instep Kicking, Koichiro Inoue, Neal Smith, Hiroyuki Nunome
ISBS Proceedings Archive
The present study aims to illustrate the distinct characteristics of foot motion during ball impact by comparing kicks with different ball launching angles. Seven male soccer players performed 42 trials of soccer instep kicking, targeting two different heights (High and Low). Three cameras recorded the ball impact at 2000 Hz. The ball contact point was near the centre for the low target but approximately 10 mm below it for the high target. While the foot swung downward in both cases, its direction was more horizontal for the high target. A greater abduction tilt was observed for the high target, whereas …
Assessing The Impact Reduction Capabilities Of Gamebreaker Softshell Headgear In Drop Tests, Annette G. Heward-Swale, George Stilwell, Nick Draper, Natalia Kabaliuk
Assessing The Impact Reduction Capabilities Of Gamebreaker Softshell Headgear In Drop Tests, Annette G. Heward-Swale, George Stilwell, Nick Draper, Natalia Kabaliuk
ISBS Proceedings Archive
Softshell headgear is marketed to reduce head impact intensity in contact sports like rugby; however, evidence supporting this remains limited. This study investigated whether selected headgear models, GameBreaker-Pro, a novel GameBreaker-Prototype and a World Rugby (WR) Law 4 approved headgear, attenuate impact intensity under controlled drop test conditions. Peak linear acceleration (PLA), peak rotational acceleration (PRA), and peak rotational velocity (PRV) were measured on a Hybrid III headform fitted with this headgear. Drop tests were conducted from 15-60 cm at five head impact orientations. All headgear reduced impact kinematics relative to the bare headform. GameBreaker headgear achieved 14-22% greater reductions …
The Influence Of Pinch Holds' Width On The Mechanics And Muscular Activity Characteristics Of The Pinch Technique For Advanced Climbers, Weiya Hao, Yaohan Huang, Shangxiao Li, Yuting Peng
The Influence Of Pinch Holds' Width On The Mechanics And Muscular Activity Characteristics Of The Pinch Technique For Advanced Climbers, Weiya Hao, Yaohan Huang, Shangxiao Li, Yuting Peng
ISBS Proceedings Archive
This study aims to explore the effects of pinch holds’ width on the mechanics and muscle activity characteristics of the pinch technique in sport climbing. 22 climbers completed maximum gripping or pinching biomechanic test of a jug hold and two pinch holds with different width. The resultant traction force, traction force components, the utilization ratio of traction forces and root mean square (RMS) amplitude of the electromyography (EMG) signals of upper limb muscles were collected. Compared to the jug, traction force decreased by 6%-19% when using the broad pinch and 31%-46% with the narrow pinch (all P < 0.05). The RMS of the pectoralis major, biceps brachii, and latissimus dorsi showed the pattern: jug > the broad pinch …
Interaction Between The Midsole And Plate In Running Shoes Modifies The Energy Strategy Of The Mtp Joint During Running, Soo-Ji Han, Jusung Lee, Sanghyuk Han, Seongjun Kim, Jongchul Park
Interaction Between The Midsole And Plate In Running Shoes Modifies The Energy Strategy Of The Mtp Joint During Running, Soo-Ji Han, Jusung Lee, Sanghyuk Han, Seongjun Kim, Jongchul Park
ISBS Proceedings Archive
This study investigated biomechanical differences of the metatarsophalangeal (MTP) joint according to midsole materials (EVA, PEBA) and carbon plate insertion. Ten male runners performed overground running at 3.89 m/s (±5%) under four footwear conditions. Discrete outcome variables included active and critical stiffness (Kactive, Kcr), push-off time, peak propulsion force, and MTP power transition timing, while statistical nonparametric mapping (SnPM) was applied to joint power. PEBA without a plate did not provide a propulsion advantage but reduced energy loss and enabled more effective joint control than EVA. In contrast, the addition of a plate to EVA facilitated a faster roll-off with …
The Effect Of Changing Depth And Speed On Ground Reaction Forces During Squat, Ihsen M. Hamed, Hafiz H. Abdalla, Rony Ibrahim
The Effect Of Changing Depth And Speed On Ground Reaction Forces During Squat, Ihsen M. Hamed, Hafiz H. Abdalla, Rony Ibrahim
ISBS Proceedings Archive
This study examined the combined effects of squat depth and speed on three-dimensional ground reaction force (GRF) patterns during bodyweight squats in 18 male participants. Imposed speed squats were about twice as fast as preferred speed, and peak knee flexion increased with depth: 99° (partial), 115° (half), and 130° (full). GRFs were measured with dual force plates and analyzed using one-dimensional statistical parametric mapping two-way repeated measures ANOVA. Slow-paced squats generated higher GRFs at the beginning and end of the movement, whereas fast tempo squats yielded a sharper vertical GRF during the bottom transition phase. Squat depth primarily affected horizontal …
Are On-Field Peak Patellar Tendon Force Estimations From Kinematics And Kinetics Viable? An Exploratory Analysis, Michiel Hagen, Jasper Verheul, Wouter Meynendonckx, Simran Chandani, Yoni Dochez, Margot Vanpachtenbeke, Danilo Santos Catelli, Sabine Verschueren, Jos Vanrenterghem
Are On-Field Peak Patellar Tendon Force Estimations From Kinematics And Kinetics Viable? An Exploratory Analysis, Michiel Hagen, Jasper Verheul, Wouter Meynendonckx, Simran Chandani, Yoni Dochez, Margot Vanpachtenbeke, Danilo Santos Catelli, Sabine Verschueren, Jos Vanrenterghem
ISBS Proceedings Archive
The objective of this study was to explore the potential of peak patellar tendon force estimations across a broad variety of physical exercises based on sagittal plane kinematic and kinetic parameters. Seven patients with patellar tendinopathy and seven healthy individuals performed 24 exercises. Peak patellar tendon forces were calculated through advanced musculoskeletal modelling. Four relevant exercise categories were identified: (1) squats / lunges / step downs, (2) jumping / hopping push-off, (3) jumping / hopping landing and (4) jumping / hopping plyometric. The adjusted R2 values of the regression analyses from kinematic data alone varied between 0.177 and 0.601 …