Digital Commons Network^™

Secret Key Generation From Real-Time Audio In Communication Apps, Rasha M. Mohsin

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Social media platforms security growing challenge of Security vulerabilities, underscoring for secure communication channels and robust user privacy safeguards. Althought key exchange protocol of the Diffie-Hellman (DH) widely adopted, remains various attacks of susceptible asnumber_theoretic exploits, Discrete Logarithm Attacks (DLAs) and Man_in_the_Middle Attacks (MITMAs). This study aim to generate cryptographic key depend on WAV audio files. By operating the entropy and distinctiveness of speech and ambient sound. Audio features has extracting by system to generat secure keys compatible with the DH protocol. The facilitate of these keys is strong encryption and decryption processes, thereby that enhancing the security of communication. …

Path Planning For Robotic Systems In Dynamic Environments: Using Rrt*, Rrt-D* Lite, And Bi-Rrt*-D* Lite, Hameed Salman Hameed, Omar Farouq Lutfy, Firas A. Raheem

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Path planning is one of the essential challenges in the area of robotic systems. In recent years, Rapidly-exploring Random Tree star (RRT*) has been a preferred path planner for robots due to its probabilistic completeness. This paper explores using three path planning algorithms for a mass point robotic system navigating dynamic environments with RRT*, Bidirectional Rapidly-exploring Random Tree (Bi-RRT*), and a novel hybrid approach (Bi-RRT*-D Lite*). The study shows the performance of these algorithms in terms of the path length, the path generating time, the number of search attempts, and the percentage error. In addition, it compares the Bi-RRT* and …

Enhancement Dijkstra Algorithm Approach For Path Planning Navigation, Ali Alyasin, Eyad I. Abbas, Jabbar K. Mohammed

Iraqi Journal of Computers, Communications, Control and Systems Engineering

Mobile robots are developing rapidly compared for modern information technology and are used in many fields, such as medicine, industry, military services, and all public services. However, the challenges facing these technologies are significant, including positioning, environmental awareness, path planning, and motion control. Greedy algorithm, Dijkstra algorithm is used for make the path planning better process for ensure increased navigation efficiency. The algorithm uses graphs to find the shortest path between two nodes in a weighted graph by repeating the process. calculating how far things have gone. The initial process of calculating the shortest path speeds up the proposed algorithm's …

Lakewood Christmas Bird Count, December 28, 2008, Nancy Howel

Cleveland Bird Calendar

No abstract provided.

Irene Turk Rorimer, Dwight Chasar

Cleveland Bird Calendar

No abstract provided.

Location Key, The Cleveland Bird Calendar

Cleveland Bird Calendar

No abstract provided.

Field Notes, Sean T. Zadar, Dwight Chasar, Haans Petruschke, Bill Whan, Judy Semroc

Cleveland Bird Calendar

No abstract provided.

Field Notes, Dwight Chasar, Ann Chasar, Sean T. Zadar, Cathy Priebe, Paula Lozano, Bob Finkelstein, Andy Fondrk, Dan Best, Kevin Metcalf, Nancy Howell, Jennifer Brumfield

Cleveland Bird Calendar

No abstract provided.

Field Notes, Sean T. Zadar, Dwight Chasar, Ann Chasar

Cleveland Bird Calendar

No abstract provided.

Field Notes, Brenda Kovalsky, Dwight Chasar, Ann Edwards, John Edwards, Stanley Stine, Kevin Metcalf

Cleveland Bird Calendar

No abstract provided.

Noteworthy Records, Larry Rosche

Cleveland Bird Calendar

No abstract provided.

Field Notes, Linda Gilbert, Brad Stemen, Bob Finkelstein, Dwight Chasar

Cleveland Bird Calendar

No abstract provided.

Field Notes, Norman J. Kotesovec Jr., Dwight Chasar, Ann Chasar

Cleveland Bird Calendar

No abstract provided.

Cloud-Based Lightweight Spatiotemporal Deep Learning Sign Language Recognition Model With Digital Twin Avatar, Mohammed Zuhair Abduljabbar

Thesis/ Dissertation Defenses

This dissertation proposes a full framework for sign language recognition (SLR). This study introduces Meta AI concept and a cloud-based framework that integrates a spatial detection and recognition model for sign language alphabet, and a spatiotemporal Transformer model for word-level SLR. The framework design also integrates a 3D digital twin that acts as a sign language interpreter on real time enhancing user friendliness and human computer interaction with the system. The major focus is finding the balance between performance accuracy and computation complexity efficiency starting with the framework communication between AI agents and the SLR models and digital twin efficiency. …

Dna Barcoding Of Eight Freshwater Fish Species (Order Siluriformes) From The River Ravi, Pakistan, Hafiz Muhammad Ashraf, Hafiz Abdullah Shakir, Muhammad Irfan, Shaukat Ali, Chaman Ara, Noor Khan, Muhammad Khan, Abdul Qadir, Muhammad Zafar Saleem

Karbala International Journal of Modern Science

Pakistan's freshwater bodies host significant fish species, but molecular identification is still in its infancy, necessitating the use of morphological and molecular DNA barcoding techniques. The study confirmed the species of the order Siluriformes found in the River Ravi, Pakistan, using DNA extracted from muscle tissue, sequenced for the COI gene, and obtained accession and Barcode Index Numbers from GenBank and BOLD databases. In the BLAST search, identities ranged from 99.23–100% and 99.52–100% in the GenBank and BOLD databases, respectively. The study revealed that the Kimura 2-Parameter genetic distance increased from lower to higher taxonomic levels: within species (0.00%) < within genus (15.17%) < within family (19.77%). The study estimated average nucleotide differences (104.964) and nucleotide diversity (0.16099) but found Tajima's neutrality test to be statistically insignificant. The neighbor-joining tree displayed closely linked species under a node, whereas divergent species were grouped under distinct nodes. The COI gene-based DNA barcoding aids in Pakistan's fish resource inventory, monitoring, and management, providing valuable input for traditional methods.

Eco-Assisted Ultrasonic Synthesis, Characterization, And Electrical Conductivity Study Of Polyaniline/ Silica@Fe3o4 Q1 Nanocomposites, Ali Salim Shaway, Kholoud Dham Khamkheem, Jawad Kadhim Abaies, Athra G. Sager

Karbala International Journal of Modern Science

وفي هذه الدراسة الصوتية، أصبحت السيليكا المُنتجة بأكسيد الحديد (Fe₃O₄) ومركبات نانوية قائمة على البولي أنيلين مُطعّم بنسبة 5-15% من السيليكا المُعزز للحديد (Fe₃O₄). وأكملت نهائيا ماء أنيلين والمركبات العلمية المتنوعة الارتباط باستخدام تقنيات FT-IR وUV-Vis وXRD وSEM وTEM. وأحدثت نتائج XRD أن حجم جسيمات البولينج أنيلين الناي (PANI) يبلغ 55.5. مكثف هذا الحجم إلى 45.2 عند تطعيم بولي أنيلين بنسبة 15% وزناً من السيليكا المُغلفة بأكسيد الحديد (Fe₃O₄) مُحضّرة بطريقة جيدة بشكل جيد، مما يميل إلى التمدد بشكل ثابت في تشكيل المركب المتباين المنظم. ضاقت النطاق البصري من 3.2 إلى 2.5 إلكترون فولت مع زيادة نسبة المطعّم، مما يشير …

Ultrasound-Guided Percutaneous Sclerotherapy Of A Canine Hepatic Cyst Using Lower-Concentration Ethanol: A Case Report, Minyoung Kim, Dongyeong Lee, Seulgi Bae, Sang-Kwon Lee, Kija Lee

The Thai Journal of Veterinary Medicine

A 10-year-old female Pomeranian was referred after a hepatic cyst was incidentally identified during a routine health check. Ultrasound-guided simple drainage was initially performed, and cytological examination of the aspirated fluid confirmed a simple cyst. However, the cyst re-expanded to its original size within 2 weeks. Therefore, ultrasound-guided percutaneous sclerotherapy was elected using lower-concentration ethanol (83%), a readily available medical disinfectant, rather than conventional high-concentration ethanol. Approximately 50% of the aspirated volume was replaced with 83% ethanol and retained for 20 min to achieve effective epithelial ablation. Post-procedural follow-up revealed a transient increase in cyst size and serum alanine aminotransferase …

Ultrasonography Accompanied By Genetic Testing In Feline Polycystic Kidney Disease, Thao Phuong Vu, Thong Quang Le, Ha Nguyen Nhat Tran, Khoa Hoang Dang Le, Anh Phu Nam Bui

The Thai Journal of Veterinary Medicine

Autosomal dominant polycystic kidney disease (ADPKD), caused by the PKD1 c.10063C>A mutation, is a prevalent inherited feline disorder, but its allele frequency in Vietnam remains unidentified. This study aimed to determine the carrier frequency of this variant in British Shorthair, Maine Coon, and Ragdoll cats in Ho Chi Minh City and to correlate genotype with ultrasonographic phenotype. Ninety-seven client-owned cats were genotyped for the pkd1 mutation using PCR-RFLP. A subset of 47 cats also underwent abdominal ultrasonography to detect renal cysts. Genotypic results were correlated with sonographic findings, and risk factors were analyzed using chi-square tests and odds ratios …

Evaluating Return To Play After Acl Reconstruction In National Football League Players Measured By Fantasy Points, William Gadbois, Hunter Ryan Cohn, Lauryn Boggs, Rahul Vaidya

Medical Student Research Symposium

Background

Torn Anterior Cruciate Ligaments (ACLs) are common injuries for professional football players with significant impacts on future performance and career longevity. This study aimed to explore the quality of return to performance after ACL reconstruction in National Football League (NFL) players with fantasy football scores as an evaluative metric of recovery length, performance, and long-term outcomes.

Methods

We analyzed 200 NFL players who received ACL reconstruction surgery between 2005 and 2021. Players were evaluated based on pre- and post-injury fantasy scores, recovery time, and career length. Data were collected from public sources and performance was evaluated seasonally.

Results

71% …

Assessing Environmental Changes Before And After The 2018 Kilauea Eruption In Leilani Estates, Hawaii, Rokeya Akter Liza

Scholars Week

The 2018 Kilauea eruption in Hawaii significantly impacted the natural landscape, especially in the Leilani Estates region. The aim of this study was to analyze and compare the environmental conditions of before and after eruption by applying remote sensing techniques. Landsat 8 satellite imagery was used for two different time periods as before the eruption (February 2018) and after the eruption (March 2019). ERDAS Imagine was used to process these images to evaluate the changes in vegetation and land cover. The Normalized Difference Vegetation Index (NDVI) was calculated for both pre- and post-eruption images to evaluate vegetation changes. Higher NDVI …

Evaluation Of Soil Properties Under Forested And Cropland Areas In Murray, Kentucky, Ramson K C, Shiba Hari Dhakal, Abinash Dhungana

Scholars Week

Soil health is shaped by its physical and chemical properties which are largely influenced by land use, affecting structure, fertility and water retention. The objective of this study was to determine key soil properties, and to evaluate their interrelationships in cultivated and forested areas of Western Kentucky. For this study, two representatives cultivated and two forested sites were selected with 6 replications each on September, 2025 in Murray, Kentucky. A total of 48 soil samples (24 disturbed and 24 undisturbed) were collected from the 0–7 cm soil layer. Disturbed soil samples were used to measure organic matter (OM) content in …

Monitoring Of Dissolved Calcium Levels In Creeks, Embayment, And Kentucky Lake Waters In Western Kentucky, Majeda Dalloul

Scholars Week

In order to reduce the economic and ecological impacts of aquatic alien species, studies are warranted across major taxonomic groups, geographic regions, and habitat types. This study addressed the dissolved calcium levels in Kentucky Lake and their implications for one of the top-ranked invasive species, the zebra mussel, and its colonization.  Zebra mussels (Dreissena polymorpha) are well known for their “biofouling” capabilities, costing billions of dollars (for northeastern and midwestern states) in their removal from industrial, public, and power plant water supply lines. Calcium is one of the essential elements that contribute to the growth and reproduction of zebra …

Angular And Distance Estimation In Multi‑Antenna Wireless Communication Systems, Pouria Zand, Sunil Kumar

Defensive Publications Series

Precise distance estimation between a primary computing device and a pair of wireless earbuds is often limited by the unreliability of Received Signal Strength Indicator (RSSI) methods. This disclosure describes a method for a coordination framework for distance and orientation estimation using Bluetooth® Channel Sounding (CS). In this method, a secondary earbud acts as a passive listener to phase‑based ranging (PBR) exchanges between the primary device and a primary earbud. By sharing configuration parameters (e.g., timing and pseudorandom seeds) the secondary earbud sniffs signal exchanges to enable the primary device to mathematically calculate secondary distance measurements. Additionally, dual‑band operation is …

Rib‑Divided Speaker Back Chamber For Preventing Sound Absorbing Material Accumulation, Yuting Tsai

Defensive Publications Series

Small speaker modules often utilize sound absorbing material within a back chamber to increase bass sound pressure. However, because manufacturing processes frequently leave these chambers partially unfilled, the material can shift and accumulate in different areas depending on the orientation of the module or the effects of forces acting on the modules (forces such as gravity or centrifugal force). This movement may alter resonant frequencies and lead to inconsistent acoustic performance.

This document discloses a speaker module that includes an internal back chamber partitioned into multiple smaller sections by integrated ribs. The partitioned sections contain sound absorbing material. The module …

Speeding Up Expert Parallelism By Replacing All-To-All By All-Gather And Reduce-Scatter Collectives, N/A

Defensive Publications Series

The technology described in this paper relates to parallel processing in machine learning models, particularly speeding up expert parallelism in mixture-of-expert (MoE) architectures. A technique for replacing traditional all-to-all network collective communications with all-gather and reduce-scatter operations is proposed. For expert dispatch, accelerators can locally perform routing and top-k calculations by utilizing an all-gather operation and discarding unassigned tokens. For expert collect, a reduce-scatter operation can combine expert output activations over the network. These collective communication strategies can decrease network payload sizes and improve bandwidth utilization, particularly as the number of experts activated per token increases. Thus, training and inference …

A Comprehensive Review Of Wireless Charging Technologies: Inductive, Capacitive And Hybrid Power Transfer, Zahraa M.Y. Islam, Yasir M. Y. Ameen

AUIQ Technical Engineering Science

Wireless power transfer has attracted more and more attention as a potential solution to electric vehicle charging due to its safety, convenience and the potential to automate this process. This review paper gives an overview of inductive and capacitive wireless power transfer technologies, especially focusing on hybrid wireless power transfer systems that integrate both approaches. The basic operating principles in both inductive and capacitive power transfer are covered with an emphasis on their advantages and inherent limitations with respect to efficiency, voltage and current stress, the tolerance of misalignment and the power capability. Building upon this background, the paper is …

Mental Health Rates Across Ethnic Groups In A Small Midwestern Christian University, Arianna Torres

Honors Theses

This study aims to find if there is a significant difference in depression, anxiety, trauma, and suicidality among students of different ethnic backgrounds at Andrews University. By focusing on ethnic disparities, this research aims to target the mental health issues rising among college students and bring to light the importance of cultural competency in relation to mental health. Results from this study may aid Andrews University in developing more inclusive and culturally responsive mental health services and inform broader discussions about mental health equity in higher education. It can also add insight into how mental health rates may vary by …

No Principal Left Alone: Exploring Elementary Principals' Relationships With Their Full-Time Assistant Principals, Shauna Worthington

Theses and Dissertations

Elementary school principals are often the only administrator in their building; therefore they are left to face the adverse circumstances of their job without the support of an administrative colleague at their school. However, U.S. nationwide data suggests that school districts are more frequently hiring elementary assistant principals. This paper explores perceptions of elementary principals about the nature and dynamic of their relationships with their full-time assistant principals, including accompanying benefits and challenges. This qualitative inquiry utilizes an exploratory, descriptive, phenomenological approach and features the results of in-depth interviews with 20 elementary school principals in two large suburban public school …

Entwurzelt, Melanie Fischer

Theses and Dissertations

Entwurzelt (Uprooted) is an installation that explores the emotional landscape of displacement-trauma, grief, and the search for belonging in the aftermath of war and unrest. The vessels in this installation evoke the presence of a forest--each one a symbolic tree, rooted in memory and shaped by personal and collective histories. Being torn from the familiar means leaving behind everything except memories and carrying a void that may never be fully filled. Yet, in unfamiliar places, fragments of comfort can be found--echoes of what once was. For me, the forest is more than a memory--it is a bridge between past and …

Reinvesting In A Lived Experience Workforce: An Exploration Of Why Peer Support Specialists Leave The Field, Morgan Rae Pelot

Dissertations and Theses

Peer support specialists (PSSs) are individuals who use their lived experience of mental health challenges along with formal training to provide peer support to other individuals experiencing similar challenges. PSSs have only become integrated into the mental health care system within the last several decades. Recently, a study reported a trend of PSSs leaving the field of peer support, but there is a gap in the literature exploring factors that may influence this decision. This study examined if self-efficacy, motivations to join the workforce, and negative work experiences were related to workforce retention. A secondary cross-sectional analysis was conducted on …