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The Role Of A Certified Child Life Specialist Within A Child Advocacy Center, Breanna E. Hintz Jan 2022

The Role Of A Certified Child Life Specialist Within A Child Advocacy Center, Breanna E. Hintz

EWU Masters Thesis Collection

Childhood abuse and neglect is currently a prevalent issue in our society. Children who do not receive adequate support and ongoing services experience lasting impacts on their mental health and ability to cope with future events. Child Advocacy Centers (CAC) are community-based agencies that promote the intervention of childhood abuse and neglect. This setting, paired with the tailored support of Certified Child Life Specialists (CCLS), is an under-researched yet promising combination of services that can encourage the healing process for these children and their families. This study aims to understand the role of CCLSs in a CAC and how their …


Behavioral Differences In Urban Sciurus Carolinensis With Varying Human Exposure As A Model For Synanthropic Human-Animal Relationships, Tiffany M. Jordan Jan 2022

Behavioral Differences In Urban Sciurus Carolinensis With Varying Human Exposure As A Model For Synanthropic Human-Animal Relationships, Tiffany M. Jordan

EWU Masters Thesis Collection

Synanthropic animals are considered a halfway point between wild and domestic animals that live in urban environments and depend on humans for their survival. Sciurus carolinensis, the eastern gray squirrel, symbolizes a distinctive coexistence between human and wildlife as they are commonly fed in parks and gardens. They are native to the eastern United States. Where they are invasive, they are found only in urban areas and not in rural or wildlife areas. This study examined how different levels of human exposure impact the behavior of S. carolinensis in its non-native range from two different perspectives by using flight initiation …


Assessing The Behavioral Response Of Westslope Cutthroat Trout To Olfactory Cues In A Two-Choice Y-Maze, Hannah Marie Condron Jan 2022

Assessing The Behavioral Response Of Westslope Cutthroat Trout To Olfactory Cues In A Two-Choice Y-Maze, Hannah Marie Condron

EWU Masters Thesis Collection

The goal of this study was to determine which olfactory cues were most attractive to Westslope Cutthroat Trout Oncorhynchus clarkii lewisi (WCT) in a two-choice Y-maze. WCT used in this study were from Kings Lake and Paqua Creek in Pend Oreille County, Washington, and tested in 2018 and 2019. The different odorants tested in this study were population-specific pheromones produced by WCT from the same population, conspecific pheromones produced by WCT from the second population, and water obtained from each population’s natal stream. The water Kings Lake WCT were reared in for one year at the Spokane Hatchery was also …


Cross-Group Friendships And Skin Tone Perceptions, Jhenifa Parker Jan 2022

Cross-Group Friendships And Skin Tone Perceptions, Jhenifa Parker

EWU Masters Thesis Collection

George Allport (1954) coined the term contact hypothesis to explain the relationship between intragroup friendships/interactions and perceptions toward that group. Allport’s hypothesis had been scrutinized as an intervention for reducing prejudices and biases against groups who collectively experience discrimination. This theory was mainly tested in terms of cross-group friendships between individuals of a different ethnicity, racial group, physical ability, and so on; however, very little research has explored this hypothesis in the context of skin tone perceptions. Colorism has had an historical and pervasive impact on individuals categorized as racial/ethnic minorities. This study attempted to bridge the gaps in research …


The Surprising Virtues Of Data Loyalty, Woodrow Hartzog, Neil M. Richards Jan 2022

The Surprising Virtues Of Data Loyalty, Woodrow Hartzog, Neil M. Richards

Faculty Scholarship

Lawmakers in the United States and Europe are seriously considering imposing duties of data loyalty that implement ideas from privacy law scholarship, but critics claim such duties are unnecessary, unworkable, overly individualistic, and indeterminately vague. This paper takes those criticisms seriously, and its analysis of them reveals that duties of data loyalty have surprising virtues. Loyalty, it turns out, can support collective well-being by embracing privacy’s relational turn; it can be a powerful state of mind for reenergizing privacy reform; it prioritizes human values rather than potentially empty formalism; and it offers solutions that are flexible and clear rather than …


A Pandemic Instrument Can Start Turning Collective Problems Into Collective Solutions By Governing The Common-Pool Resource Of Antimicrobial Effectiveness, Isaac Weldon, Kathy Liddell, Susan Rogers Van Katwyk, Steven J. Hoffman, Timo Minssen, Kevin Outterson, Stephanie Palmer, A. M. Viens, Jorge Viñuales Jan 2022

A Pandemic Instrument Can Start Turning Collective Problems Into Collective Solutions By Governing The Common-Pool Resource Of Antimicrobial Effectiveness, Isaac Weldon, Kathy Liddell, Susan Rogers Van Katwyk, Steven J. Hoffman, Timo Minssen, Kevin Outterson, Stephanie Palmer, A. M. Viens, Jorge Viñuales

Faculty Scholarship

To address the complex challenge of global antimicrobial resistance (AMR), a pandemic treaty should include mechanisms that 1) equitably address the access gap for antimicrobials, diagnostic technologies, and alternative therapies; 2) equitably conserve antimicrobials to sustain effectiveness and access across time and space; 3) equitably finance the investment, discovery, development, and distribution of new technologies; and 4) equitably finance and establish greater upstream and midstream infection prevention measures globally. Biodiversity, climate, and nuclear governance offer lessons for addressing these challenges.


Differences In Subjective Well-Being Between Individuals With Distinct Joint Personality (Temperament-Character) Networks In A Bulgarian Sample, Danilo Garcia, Maryam Kazemitabar, Kristina Stoyanova, Drozdstoy Stoyanov, C Robert Cloninger Jan 2022

Differences In Subjective Well-Being Between Individuals With Distinct Joint Personality (Temperament-Character) Networks In A Bulgarian Sample, Danilo Garcia, Maryam Kazemitabar, Kristina Stoyanova, Drozdstoy Stoyanov, C Robert Cloninger

2020-Current year OA Pubs

Background: Personality is the major predictor of people's subjective well-being (

Method: The sample consisted of 443 individuals from Bulgaria (68.70% females) with a mean age of 34 years (

Results: We found two Temperament Profiles and two Character Profiles that clustered into two distinctive Joint Personality Networks. All individuals in Joint Personality Network 1 had a Reliable (nhRP) Temperament Profile in combination with an Organized (SCt) Character Profile (

Conclusions: Although a stable temperament and a healthy character were separately important for well-being, it was clear that it was the interaction between such temperament and character configuration that yielded …


2022 January, Morehead State University. Office Of Communications & Marketing. Jan 2022

2022 January, Morehead State University. Office Of Communications & Marketing.

Morehead State Press Release Archive, 1961 to the Present

Press releases for January of 2022.


Reflector Magazine, Georgia Southern University Jan 2022

Reflector Magazine, Georgia Southern University

Reflector Magazine

  • Letters from the Editor
  • Fixing the Boro'
  • Georgia's Most Haunted
  • The Perfect Hideaway
  • Horror Archetypes
  • Fashion Outliers
  • Ink Culture


Deep Learning-Based Surrogate Models For Post-Earthquake Damage Assessment, Xinzhe Yuan Jan 2022

Deep Learning-Based Surrogate Models For Post-Earthquake Damage Assessment, Xinzhe Yuan

Doctoral Dissertations

"Seismic damage assessment is a critical step to enhance community resilience in the wake of an earthquake. This study aims to develop deep learning-based surrogate models for widely used fragility curves to achieve more accurate and rapid assessment in practice. These surrogate models are based on artificial neural networks trained from the labelled ground motions whose resulting damage classes on targeted structures are determined by nonlinear time history analyses. The development of various surrogate models is progressed in four phases. In Phase I, the multilayer perceptron (MLP) is used to develop multivariate seismic classifiers with up to 50 hand-crafted intensity …


Use Of Technology And Its Impact On Higher Order Thinking In The Science Classroom, Mauree Angelina Haage Jan 2022

Use Of Technology And Its Impact On Higher Order Thinking In The Science Classroom, Mauree Angelina Haage

Dissertations and Theses @ UNI

This study focuses on examining the impact of technology on higher order thinking in the science classroom by first examining the impact of a teacher’s knowledge of Bloom’s Revised Taxonomy on the integration of higher order thinking activities and then by examining what levels of higher order thinking exist when technology was utilized. Previous research has found correlations between the levels of Bloom’s Taxonomy exhibited when using technology, particularly probeware, simulations/virtual labs, and special software like LoggerPro. In addition, previous research has shown a trend of teachers inaccurately categorizing their lessons and activities as having a higher order thinking level …


Using Internet Reciprocal Teaching To Develop Second Graders' Online Text Evaluation Skills, Annika Buell Jan 2022

Using Internet Reciprocal Teaching To Develop Second Graders' Online Text Evaluation Skills, Annika Buell

Dissertations and Theses @ UNI

This study was designed to explore the relationship between Internet Reciprocal Teaching (IRT) and young students’ online text evaluation skills. It built upon previous research that identified four main online reading comprehension skills: locating, evaluating, synthesizing, and communicating information that are similar yet more complex than offline reading comprehension skills. In the majority of previous research, participants were in fifth grade or above. This study aimed to observe the processes younger students go through while reading online text. Participants were second grade students in a Midwestern suburban elementary school.

Qualitative methods were used to collect data while students participated in …


Unstacking The Matryoshka Nesting Doll: A Self-Study Of Playful Language Instruction For Adult Second Language Learners, Marine Pepanyan Jan 2022

Unstacking The Matryoshka Nesting Doll: A Self-Study Of Playful Language Instruction For Adult Second Language Learners, Marine Pepanyan

Dissertations and Theses @ UNI

In the recent three decades teaching second language (L2) vocabulary has expanded from sentence-level morphosyntactic features and pragmatics to the promotion and advancement of Communicative Language Teaching (CLT). Nevertheless, the L2 instructors are constantly seeking alternative strategies for vocabulary teaching and assessment due to a superficial level of vocabulary memorization and lack of student engagement. As an instructor-practitioner, I undertook a self-study of the process of implementing Playful Language Instruction (PLI) of L2 vocabulary in an Intensive English Program. In this self-study I combined conceptual lenses of theories of play, CLT, and the Adult Learning Theory to examine how playful …


The Impacts Of Adolescents' Leisure Activity Types On Psychological Well-Being, Academic Self-Efficacy, Self Esteem, And Stress, Dongyub Back Jan 2022

The Impacts Of Adolescents' Leisure Activity Types On Psychological Well-Being, Academic Self-Efficacy, Self Esteem, And Stress, Dongyub Back

Dissertations and Theses @ UNI

Korean teenager deviance, school violence, and school dropout caused by academic stress are serious social issues within the country. High levels of student stress are likely to bring about depression and suicide resulting in a significant effect on their psychological well-being and life satisfaction. It is of particular concern for middle school students experiencing rapid physical and psychological developmental changes without proper support. Forty-five percent of Korean students’ indicated stress in their life and 27% experienced depression (Statistics Korea, 2019). Also, Korean middle school students (27.3%) have suicide impulse (Youm & Kim, 2019). These youth development issues are considered social …


Quantifying Genomic Diversity And Growth In Iowa Bluegill, Jeremy Raymond Abels Jan 2022

Quantifying Genomic Diversity And Growth In Iowa Bluegill, Jeremy Raymond Abels

Dissertations and Theses @ UNI

Bluegill (Lepomis macrochirus) is one of the most fished species in Iowa. However, after an initial stocking event, lakes rarely receive additional stockings owing to a high rate of natural reproduction. For this reason, the genetic diversity of Bluegill populations remains understudied in the context of fisheries and natural resource management. Additionally, the extent to which genetics influences the growth rate of Bluegill on a population level has not yet been extensively examined. The goal of this study was to understand the diversity of Iowa’s Bluegill population and to determine if there is a genetic association with growth …


Graduate Recital: Colin Evers, Piano, Colin Evers Jan 2022

Graduate Recital: Colin Evers, Piano, Colin Evers

Dissertations and Theses @ UNI

On April 14th, 2022, pianist Colin Evers performed a solo piano recital in Davis Hall of the Gallagher-Bluedorn Performing Arts Center, at the University of Northern Iowa in Cedar Falls, Iowa. The recital consisted of Piano Sonata No. 8 in C minor Op. 13 “Pathétique” by Ludwig van Beethoven, Sonatine pour Piano by Maurice Ravel, Liebesleid by Fritz Kreisler, arranged for solo piano by Sergei Rachmaninoff, Étude No. 12 in D-sharp minor, Op. 8, by Alexander Scriabin, and Ballade No. 4 in F minor Op. 52 by Frédéric Chopin.


Persistent Stealthy Attacks And Their Detection In Large Distributed Cyber-Physical Systems, Simon Bech Thougaard Jan 2022

Persistent Stealthy Attacks And Their Detection In Large Distributed Cyber-Physical Systems, Simon Bech Thougaard

Doctoral Dissertations

"Cyber-Physical Systems (CPS) are increasingly targeted by attackers using a wide and evolving array of methods. When these systems are distributed, every node represents a potential vulnerability, and secure system design must take this into account. Distributed CPSs also have the potential to better detect and handle attacks, by leveraging redundancies of physical measurements between adjacent nodes. The main purpose of this research is to determine the conditions that render a distributed CPS more resistant to attacks, and the conditions that render it more vulnerable. The work is centered around two separate applications: The Smart Grid and Autonomous Drone Swarms. …


First Determination Of Anticancer, Cytotoxic, And In Silico Adme Evaluation Of Secondarymetabolites Of Endemic Astragalus Leucothrix Freyn & Bornm, Ayşe Şahi̇n Yağlioğlu, Duygu Güneş Gürbüz, Melda Dölarslan, İbrahi̇m Demi̇rtaş Jan 2022

First Determination Of Anticancer, Cytotoxic, And In Silico Adme Evaluation Of Secondarymetabolites Of Endemic Astragalus Leucothrix Freyn & Bornm, Ayşe Şahi̇n Yağlioğlu, Duygu Güneş Gürbüz, Melda Dölarslan, İbrahi̇m Demi̇rtaş

Turkish Journal of Chemistry

Isolation and characterization of anticancer activity guided secondary metabolites of endemic Astragalus leucothrix Freyn& Bornm were aimed. Aerial parts of the plant were extracted by maceration method in the solvent system methanol-chloroform (1 : 1) at room temperature. The obtained crude extract was dissolved in purified water. Then, the extract was partitioned with n-hexane, chloroform, ethyl acetate, and n-butanol, respectively. Anticancer activity tests of all the fractions were performed against HeLa and C6 cancer cells. The chloroform fraction that has highest anticancer activity was subjected to chromatographic methods such as column chromatography and thin layer chromatography. Pentyl tetratetracontanoate (1), alfalone …


Synthesis Of Benzoyl Hydrazones Having 4-Hydroxy-3,5-Dimethoxy Phenyl Ring, Theirbiological Activities, And Molecular Modeling Studies On Enzyme Inhibition Activities, Bedri̇ye Seda Kurşun Aktar, Yusuf Sicak, Gi̇zem Tatar, Emi̇ne Elçi̇n Emre Jan 2022

Synthesis Of Benzoyl Hydrazones Having 4-Hydroxy-3,5-Dimethoxy Phenyl Ring, Theirbiological Activities, And Molecular Modeling Studies On Enzyme Inhibition Activities, Bedri̇ye Seda Kurşun Aktar, Yusuf Sicak, Gi̇zem Tatar, Emi̇ne Elçi̇n Emre

Turkish Journal of Chemistry

Hydrazone compounds have high capacity in terms of antioxidant activity and enzyme inhibition activities such as anticholinesterase, tyrosinase, and urease. In this study, benzoyl hydrazones compounds (7a-7m) were synthesized starting from 3,5-dimethoxy-4-hydroxybenzaldehyde. Antioxidant activity of the synthesized compounds was evaluated. In the β-carotene-linoleic acid and ABTS cation radical scavenging activities, compounds 7j, 7e, and 7m stood out as the most active compounds, respectively. In the anticholinesterase enzyme inhibition activity results, compound 7f exhibited the best activity against AChE and BChE enzymes in the synthesis series. In addition, molecular docking analysis was performed to understand the inhibition mechanism of the synthesized …


Chromatographic Evaluation Of Tocols And Sterols Of Processed Canola Oil And Deodorizerdistillate, Hadia Shoaib, S. Tufail Sherazi, Saba Naz, Dr Sarfaraz Ahmed Mahesar, Abdul Rauf Khaskheli, Siraj Uddin, Ahmed Raza Sidhu, Hami̇de Fi̇li̇z Ayyildiz, Hüseyi̇n Kara, Mustafa Topkafa Jan 2022

Chromatographic Evaluation Of Tocols And Sterols Of Processed Canola Oil And Deodorizerdistillate, Hadia Shoaib, S. Tufail Sherazi, Saba Naz, Dr Sarfaraz Ahmed Mahesar, Abdul Rauf Khaskheli, Siraj Uddin, Ahmed Raza Sidhu, Hami̇de Fi̇li̇z Ayyildiz, Hüseyi̇n Kara, Mustafa Topkafa

Turkish Journal of Chemistry

Tocopherols and tocotrienols in the combined form are known as tocols. Changes of total and individual tocols and sterols concentration of canola oil and deodorizer distillate (DD) during different processing stages were evaluated with the application of gas chromatography (GC) and high-performance liquid chromatography (HPLC). For sterols analysis, GC coupled with flame ionization detector (FID) was used while tocols in canola oil samples and DD, normal phase (NP) HPLC was applied. The results of the present study indicated that levels of total and individual tocols and sterols content were decreased during processing (neutralization to deodorization). Deodorization was found to be …


Effect Of Poly(Ethylene-Vinyl Acetate) Pour Point Depressant On The Cold Flow Properties And Crystallization Behavior Of Soybean Biodiesel Blends Fuel, Jinbao Liu, Chunhua Wang, Qian Liu, Fen Zhang, Xiaojie Liu, Min Sun Jan 2022

Effect Of Poly(Ethylene-Vinyl Acetate) Pour Point Depressant On The Cold Flow Properties And Crystallization Behavior Of Soybean Biodiesel Blends Fuel, Jinbao Liu, Chunhua Wang, Qian Liu, Fen Zhang, Xiaojie Liu, Min Sun

Turkish Journal of Chemistry

Although biodiesel-diesel blends are being widely used in diesel engines, investigations on its cold flow properties and crystallization behavior are still scarce. In this paper, poly(ethylene-vinyl acetate) (PEVA) pour point depressant and petroleum diesel were worked together to enhance the cold flow properties of soybean biodiesel. PEVA presented a better positive effect in reducing the cold filter plugging point (CFPP) of biodiesel blends. B40 treated with 1% PEVA exerted the best cold flow properties, and its CFPP was decreased by -14 °C. In addition, the crystallization behavior was changed variously. The sizes of crystals were decreased as well as the …


A Simple And Rapid Rp-Hplc Method For The Assessment Of Cobalamin (Vitamin B12) Intilapia And Snoek Fishes, Labaran Ibrahim, Aminu Usman Jan 2022

A Simple And Rapid Rp-Hplc Method For The Assessment Of Cobalamin (Vitamin B12) Intilapia And Snoek Fishes, Labaran Ibrahim, Aminu Usman

Turkish Journal of Chemistry

This study developed a rapid reversed-phase high-performance liquid chromatography (RP-HPLC) method equipped with a UV-Vis detector. The aquaponics system?s tilapia and marine snoek fishes were extracted using an autoclaving process and enzymatic treatment. The technique enabled the separation and quantification of cobalamin present in these fishes extracts. Phenomenex Luna® 5 μm C18 (2) 100 A LC-column (150 × 4.6 mm) was used as a stationary phase, while the mobile phase consisted of methanol and phosphoric acid in a ratio of 35:65 (v/v), respectively. The developed method was revealed to be rapid (a retention time of less than 5.0 min), linear …


Clerodendrum Serratum Extract Attenuates Production Of Inflammatory Mediators Inovalbumin-Induced Asthma In Rats, Poonam Arora, Shahid Hamid Ansari, Lalit Mohan Nainwal Jan 2022

Clerodendrum Serratum Extract Attenuates Production Of Inflammatory Mediators Inovalbumin-Induced Asthma In Rats, Poonam Arora, Shahid Hamid Ansari, Lalit Mohan Nainwal

Turkish Journal of Chemistry

In the present study, ethanolic extract of Clerodendrum serratum roots was investigated for its potential to reverse some features of bronchial asthma in ovalbumin-induced murine model of asthma. Clerodendrum serratum commonly called bharangi, (family Solanaceae) is a well-known anti-allergic drug in Asian folk system of medicines. In the present work, pharmacological studies are done to provide scientific evidence for therapeutic potential of plant in allergic asthma. Asthma was induced in experimental rats with allergen suspension of ovalbumin and aluminum hydroxide followed by treatment with dexamethasone (2.5 mg/kg, po) or C. serratum root extract (0.53 and 5.3 mg/kg, b. w., po). …


Synthesis, Predictions Of Drug-Likeness, And Pharmacokinetic Properties Of Some Chiral Thioureas As Potent Enzyme Inhibition Agents, Yusuf Sicak Jan 2022

Synthesis, Predictions Of Drug-Likeness, And Pharmacokinetic Properties Of Some Chiral Thioureas As Potent Enzyme Inhibition Agents, Yusuf Sicak

Turkish Journal of Chemistry

A series of chiral thioureas (1 - 17) were synthesized from and tested for their anticholinesterase, tyrosinase, and urease enzyme inhibitor activities. Various phenylisothiocyanates were added to solution of L-cysteine in methanol: water (1 : 1 v / v) at room temperature and stirred for 24 h. The precipitated solid was recrystallized from n-butanol. Pure compounds were characterized by NMR (1H and 13C), FTIR, and CHNS. Tertiary amine containing N-(4-(diethylamino)phenyl)-N'-(2-mercapto-carboxyethanyl)thiourea 17, N-(4-(dimethylamino)phenyl)-N'-(2-mercapto-carboxyethanyl)thiourea 16 and trimethoxy containing N-(3,4,5-trimethoxyphenyl)-N'-(2-mercapto-carboxyethanyl)thiourea 14 were more active than galantamine against AChE and BChE enzymes. In tyrosinase enzyme inhibition activity, compound 14, 10, 12, 6, 13, and …


Induction Of Lutein Production In Scenedesmus Obliquusunder Different Culture Conditions Prior To Its Semipreparative Isolation, Ayşegül Erdoğan, Ayça Büşra Karataş, Zeli̇ha Demi̇rel, Meltem Dalay Jan 2022

Induction Of Lutein Production In Scenedesmus Obliquusunder Different Culture Conditions Prior To Its Semipreparative Isolation, Ayşegül Erdoğan, Ayça Büşra Karataş, Zeli̇ha Demi̇rel, Meltem Dalay

Turkish Journal of Chemistry

Microalgae with their improved growth rates and accumulation of high-value-added products make their commercial production attractive. Among them, lutein, which is a carotenoid, plays a very important role due to its various applications in the food and pharmaceutical industry. Induction of its biosynthesis can be triggered by various stress conditions like light. In this study, three different light intensities (50,150 and 300 μmol photons/m2s) and aeration rates (1, 3, and 5 L/min) were utilized to induce the lutein biosynthesis and biomass productivity in Scenedesmus obliquus. Lutein was isolated by preparative chromatography using a semiprep C30 column (10 × 250 mm, …


Electroanalytical Investigation And Voltammetric Quantification Of Antiviral Drug Favipiravir In The Pharmaceutical Formulation And Urine Sample Using A Glassy Carbon Electrode In Anionic Surfactant Media, Zeynep Akca, Hande İzem Özok, Yavuz Yardim, Zühre Şentürk Jan 2022

Electroanalytical Investigation And Voltammetric Quantification Of Antiviral Drug Favipiravir In The Pharmaceutical Formulation And Urine Sample Using A Glassy Carbon Electrode In Anionic Surfactant Media, Zeynep Akca, Hande İzem Özok, Yavuz Yardim, Zühre Şentürk

Turkish Journal of Chemistry

This work describes the electrochemical investigation of a promising antiviral agent, favipiravir (FAV) utilizing a nonmodified glassy carbon (GC) electrode, along with a unique voltammetric approach that can determine FAV with a good degree of accuracy, speed, and cost-effectiveness. Using cyclic voltammetry, the compound demonstrated a single well-defined and an irreversible oxidation peak at approximately +1.12 V (vs. Ag/AgCl) in Britton-Robinson (BR) buffer at pH 10.0. The synergistic effect of anionic surfactant, sodium dodecyl sulfate (SDS) on the adsorption ability of GC electrode remarkably increased the sensitivity of the stripping voltammetric measurements of FAV. Employing square-wave adsorptive stripping voltammetry at …


Boric Acid And Schiff Base-Based Fluorescent Sensor For Detection Of L-Tryptophan In Milk And Bsa Samples, Ümran Duru Kamaci, Musa Kamaci Jan 2022

Boric Acid And Schiff Base-Based Fluorescent Sensor For Detection Of L-Tryptophan In Milk And Bsa Samples, Ümran Duru Kamaci, Musa Kamaci

Turkish Journal of Chemistry

In the present paper, the fluorescence sensor based on Schiff base and boric acid was developed for easy and rapid detection of L-tryptophan in different samples such as milk and bovine serum albumin. The photoluminescence intensity was measured by using fluorescent measurements and the results indicated that the developed fluorescent sensor was exhibited selective, sensitive, reliable determination against L-tryptophan, and a series of various analytes such as cations, amino acids, and organic compounds were used to investigate the selectivity of the fluorescent chemosensor. The limit of detection and linear range of the chemosensor were calculated as 0.82 μM, and 0.1?500 …


Synthesis And Investigation Of Antiproliferative Activity Of Ru-Nhc Complexes Against C6 And Hela Cancer Cells, Ramazan Paşahan, Mi̇tat Akkoç, Şeyma Yaşar, Tuğba Kul Köprülü, Şaban Teki̇n, Sedat Yaşar, İsmai̇l Özdemi̇r Jan 2022

Synthesis And Investigation Of Antiproliferative Activity Of Ru-Nhc Complexes Against C6 And Hela Cancer Cells, Ramazan Paşahan, Mi̇tat Akkoç, Şeyma Yaşar, Tuğba Kul Köprülü, Şaban Teki̇n, Sedat Yaşar, İsmai̇l Özdemi̇r

Turkish Journal of Chemistry

The 2-methylpyridine, 2-diethylaminoethyl, and isopentyl linked a series of symmetric and unsymmetric benzimidazolium salts 2a-e were prepared and used in the synthesis of silver-N-heterocyclic carbene (NHC) complexes (3a-e). The Ru(II)-NHC complexes (4a-h) were synthesized via transmetalation reaction from 3a-e. 4a-h complexes were converted to Ru(II)-NHC.HCl complexes (5ah) by HCl solution of diethyl ether and characterized by different spectroscopic techniques such as 1H and 13C NMR, LC/MS-Q-TOF, FT-IR, elemental analysis, and melting point detection. We examined the effect of the structural difference of complexes on anticancer activity via different arenes and metal centers. Antiproliferative activity of 5a-h and 3a was tested …


Intake Of Divalent Copper And Nickel Onto Natural Zeolite From Aqueous Solutions: A Study In Mono- And Dicomponent Systems, Burak Teki̇n, Ünsal Açikel Jan 2022

Intake Of Divalent Copper And Nickel Onto Natural Zeolite From Aqueous Solutions: A Study In Mono- And Dicomponent Systems, Burak Teki̇n, Ünsal Açikel

Turkish Journal of Chemistry

In this study, the noncompetitive and competitive adsorption process of copper (II) and nickel (II) ions on the natural zeolite were examined in simulated wastewater in a batch system with respect to concentration, pH and temperature. Optimum pH values were found as 5,0 for adsorption of copper and nickel ions on the zeolite. The effect of initial concentration and ambient temperature on the yield of adsorption was examined at this pH value. The equilibrium adsorption data of Cu (II) and Ni (II) onto the zeolite were analyzed by the Langmuir's and Freundlich's isotherms, and the experimental metal uptake data fitted …


Impacts Of Some Metal Ions On Glutathione S-Transferase In The Liver Of Chalcalburnus Tarichi: An Endemic Species Of Lake Van, Muhammet Serhat Özaslan, Mehmet Çi̇ftci̇ Jan 2022

Impacts Of Some Metal Ions On Glutathione S-Transferase In The Liver Of Chalcalburnus Tarichi: An Endemic Species Of Lake Van, Muhammet Serhat Özaslan, Mehmet Çi̇ftci̇

Turkish Journal of Chemistry

Glutathione-S-transferase (GSTs) is a multifunctional enzyme that provides homeostasis by catalyzing the first step of the formation of mercapturic acid, the end product in detoxification metabolism. They can prevent reactive electrophilic compounds from harming the body by covalently binding the same type of compounds to each other. In this study, we determined the in vitro inhibitory effects of metal ions such as Cu2+, Cd2+, Ag+, and Co2+ on GST enzyme activity. For this aim, GST was purified from C. tarichi Pallas liver with 37.36% yield and 29.304 EU/mg specific activity using the chromatographic method. The Vmax values of liver GST …