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Spectroscopic And Structural Analysis Of Aluminum Bulk And Nanoparticles: A Comparative Study, Hajir M. Fadhil, Khaleel I. Hassoon, Hyder A. Salih

Journal of Applied Sciences and Nanotechnology

In the present work, Laser Induced Breakdown Spectroscopy (LIBS) has been utilized to investigate two forms of aluminum samples, namely Al in the form of the nanoparticles (NPs) and a bulk (pellet). The Al target was irradiated by pulsed Nd-YAG laser with wavelength 1064 nm to produce plasma. The plasm spectrum is analyzed in the wavelength range between 250 nm and 700 nm. Some plasma parameters were calculated, including electron temperature (����), plasma density (ne) and Debye length (����) for different laser energies. The temperature of electrons was computed employing the Boltzmann plot technique, and the electrons density was computed …

Antibacterial Studying Of Silver Nanoparticles Synthesized By Chemical Reduction Method Using Different Stabilized Concentrations, Zahraa Ghazi, Mohammad Mohammad, Manal Abbood, Amal Hussein

Journal of Applied Sciences and Nanotechnology

Silver nanoparticles were prepared by the chemical reduction method. Silver nitrate was taken as a metal precursor and sodium borohydride as a reducing agent with polyvinyl alcohol (PVA) stabilizers of different concentrations, polyvinylpyrrolidone (PVP). X-ray diffraction (XRD), transmission electron microscopy (TEM), and atomic force microscopy (AFM) techniques have been used, these measurement results showed that the prepared material is silver nanoparticles. The average size of silver nanoparticles using the Scherrer equation with values ranging from 8.49-12.15nm. TEM images showed that the silver nanoparticles are spherical in size between 5-47nm. Nanoscale distribution of silver nanoparticles (AgNPs) prepared at different concentrations was …

Preparation Of Cellulose Acetate Nanocomposite Films Based On Tio2-Zno Nanoparticles Modification As Food Packaging Applications, Hajer Ali, Nahida Hameed

Journal of Applied Sciences and Nanotechnology

To develop bio-packaging materials, nanocomposite films of cellulose acetate reinforced with titanium dioxide and zinc oxide nanoparticles were prepared, by the casting method at different weight ratios of ZnO nanoparticles (1.5, 2, and 2.5) wt% and a constant weight ratio of 2 wt% TiO2. ZnO and TiO2 nanoparticles were tested using scanning electron microscopy (SEM). The mechanical properties (tensile strength and elongation) were improved at a fixed level of Cellulose Acetate+ 2% TiO2+1.5wt% ZnO loading. Beyond that level of loading, they decreased. The tensile strength was decreased due to some degrees of agglomeration of filler particles above a critical content. …

Chitosan/Pva/Peg Blend Strengthened With Mgo Nanoparticles For Antibacterial Application, Ishraq Fadhil, Balqees Aldabbagh, Wijdan Mahdi

Journal of Applied Sciences and Nanotechnology

Chitosan holds net ionic positive charges, which contribute its ability to chemically bind with negatively charged fats, lipids, metal ions, proteins, and microorganisms. Magnesium oxide (MgO) nanoparticles are important inorganic materials with a wide band-gap used in many applications such as catalysts, antibacterial and medical products. The aim of this study was to investigate the effect of Chitosan (CHT) hydrogel loaded MgO nanoparticles on the bacterial growth. CHT/ poly vinyl alcohol (PVA)/ poly ethylene glycol (PEG) hydrogel was blended with various amounts of MgO nanoparticles. The surface morphology of the obtained blends was investigated by Field Emission Scanning Electron Microscope …

Study Of Some Properties Of Pbi2 Deposited On Porous Silicon Using Thermal Evaporation Technique For Many Applications, Suha Ali, Mohammed Mohammed, Fatima Sultan

Journal of Applied Sciences and Nanotechnology

The present work is a study of some properties of PbI2 deposited on porous silicon (n-PSi) by using the thermal evaporation technique. X-ray diffraction, scanning electron microscopy, UV–Vis spectrophotometer, and FTIR analysis were used to characterize the structural, optical, and morphological properties of n-Psi. X-ray diffraction showed that the PbI2 film has a hexagonal polycrystalline structure, while FE-SEM images showed porous silicone in Photoelectrochemical etching, the pore distribution is irregular and the pore refers to the increased surface area of the silicon. SEM images of pbI2 film showed that particles were scattered and resembled gravel in size. The estimated optical …

Preparation, Characterization And Mimetic Activities Of Fe2o3 And Fe3o4 Nanoparticles As Catalase And Peroxidase, Alaa Majeed, Rashed Rasheed

Journal of Applied Sciences and Nanotechnology

Different iron oxide nanoparticles (Fe3O4 and Fe2O3) were prepared by the sol-gel method (titration). The prepared nanoparticles were heated at 90 and 400°C. The morphology surface and structures were characterized by Fourier Transform Infra-Red (FT-IR) and Ultraviolet/Visible (Uv/Visible) measurements, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Atomic Force Microscope (AFM). The enzyme mimetic activities of these nanoparticles (Fe3O4 and Fe2O3) such as two enzymes (Catalase (CAT), and Peroxidase (Pxase)) were measured. The results showed the iron oxides (Fe2O3) heated at 90°C, have the maximum activity (189.99 K.min-1) as catalase (CAT). While the iron oxides (Fe3O4) heated at 90°C, have …

A Call For Prudent Taxation Of Cannabis Corporates To Fund Mental Health Programmes, Cyprian Mostert, Jasmit Shah, Lukoye Atwoli, Zul Merali, Manasi Kumar

Brain and Mind Institute

Cannabis consumption increases the incidence of psychotic disorders, violence, and cognitive impairments [1]. Governments need to implement progressive tax legislation, such as that which requires the cannabis sector to accept responsibility and account for its contribution to the worsening of these mental health conditions in developing countries. Excise taxes are rarely imposed on the cannabis sector [2], despite the lucrative wealth amassed by this industry. For example, current estimates show that the global cannabis sector was valued at $25 billion in 2021 and is projected to reach $176 billion by 2030, driven solely by cannabis inhalation demands [3]. The projected …

Light & Faith: September 2022, Taylor University

Light & Faith

No abstract provided.

Strategic Disclosure And Debt Covenant Violation, Thomas Bourveau, Derrald Stice, Rencheng Wang

Research Collection School Of Accountancy

This study examines how managers change their forecasting behavior as a debt covenant violation approaches. Using a sample of firms that disclose a debt covenant violation (DCV) in their financial statements, we find that management forecasts are more optimistic in the period leading up to a DCV, and this result is not driven by managers’ unintentional forecast bias. Additionally, we find that managers who are more optimistic in their forecasts also take on more risk and increase dividend payouts before violations, consistent with managers strategically using earnings forecasts to justify their activities favorable to shareholders but likely to be curtailed …

Deep And Superficial Sensory Nerve Conduction To The First Dorsal Web Space Of The Foot, Kathy Galloway, Samantha Cook, Colleen Manning, Jessie Mills, Ashley Popham, Royale Rand, Rick Mckibben

Funded Scholarship

Background

Headquarters Report: Inspire! Support! Lead! With The 2022 Leadership Forum, Karen Burgess Cae

The Journal of the Michigan Dental Association

The Michigan Dental Association highlights the importance of volunteer leaders in the organization's success and the satisfaction of its membership. The in-person Leadership Forum for 2022 offers an exciting lineup, including topics on dental practice trends, legislative action, inclusion, and hot topics in organized dentistry. Breakout sessions cover leadership development, time management, emotional intelligence, and component engagement. Whether experienced or new to volunteer leadership, attending the Leadership Forum provides opportunities for personal and professional growth. Additionally, the article mentions various leadership opportunities available for members and encourages recognition through the MDA Committed Colleague program.

The Promise Of The White Coat, Christopher J. Smiley Dds

The Journal of the Michigan Dental Association

This month’s editorial discusses the significance of the White Coat Ceremony in dental education, symbolizing a promise to uphold the profession with compassion and ethical standards. Dr. Smiley reflects on the challenges of teaching lasting ethical behavior and emphasizes the importance of personal values. He shares a real-life case of a classmate's unethical behavior leading to legal consequences, highlighting the role of peers in upholding ethical standards. The editorial encourages clinicians, whether they had a formal White Coat ceremony or not, to embrace the symbolic white coat as a daily reminder of their commitment to ethical patient care.

Dean’S Report: University Of Michigan School Of Dentistry Advancing Dental Education And Oral Health Science Is Our Passion And Mission, Jan Hu Bds, Phd

The Journal of the Michigan Dental Association

The Dean of the University of Michigan School of Dentistry, Jan Hu’s annual report to our readers, highlights the school's dedication to dental education and oral health science. The report underscores the school's commitment to maintaining high standards in the face of changing times. Key Highlights:

1. Educational Normalcy: Despite the challenges posed by the pandemic, the school has returned to a sense of normalcy in educating DDS, dental hygiene, and graduate students. Stringent infection control measures are still in place.
2. Vibrant Research: The school's research endeavors remain strong, with over 200 papers, articles, and reviews published in prestigious academic journals …

Chth 514.X01: Health And Culture, Gilbert A. Quintero

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Csd 109.01: Slpeeps - A First Year Guide To Communication Sciences And Disorders, Coille A. Putman

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Csd 110.50: Introduction To Speech, Language, And Audiology, Haley Permar

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Csd 430.01: Senior Capstone, Danielle K. Fahey

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Edsp 556.01: Introduction To Methods For Low Incidence Disabilities, Jennifer Katherine Schoffer-Closson

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Pubh 101s.01: Introduction To Public Health, Curtis W. Noonan

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Pubh 380.01: Public Health Nutrition, Blakely D. Brown

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Pubh 510.50: Introduction To Epidemiology, Ellen Leahy

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Pubh 520.50: Fundamentals Of Biostatistics, Jonathan D. Knudson

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Slp 546.01: Argumentative & Alternative Communication, Leah Jean Meloy

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 222.00: Psychological Statistics, Rachel L. Severson

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 120.01: Introduction To Research Methods, Rachel E.G. Williamson

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 270.01: Fundamentals Of The Psychology Of Learning - Online, Kara M. Snider

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 348.01: Psychology Of Family Violence, Julie M. Olomi

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 376.50: Cognitive Behavior Modification - Online, Emily A, Brooke

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 520.01: Advanced Psychological Statistics I, Daniel J. Denis

University of Montana Course Syllabi, 2021-2025

No abstract provided.

Psyx 501.01: Teaching Of Psychology, Laura G. Kirsch

University of Montana Course Syllabi, 2021-2025

No abstract provided.