Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Brigham Young University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2521 - 2550 of 19131

Full-Text Articles in Entire DC Network

Parental Warmth And Disciplinary Strategies In Two-Parent-Adoptive And Biological Families, Jordan Coburn Dec 2022

Parental Warmth And Disciplinary Strategies In Two-Parent-Adoptive And Biological Families, Jordan Coburn

Theses and Dissertations

Adopted children enter families with parents who on average are older, have higher income, and have more education than other family structures. Because adopted children are moving into families with more resources, research suggests that they would do just as well as, and perhaps even better than, children in biological two-parent households. However, this is not always the case. Understanding how different variables could offset any negative results of adoption is a puzzle that researchers are continually exploring. Previous research has investigated differences in investments from adoptive and biological parents through multiple theoretical lenses. I seek to add to current …

Go to article

Does Predation Environment Affect Repeated Responses To Predation Cuesâ In The Fishâ Brachyrhaphis Rhabdophora?, Madeleine S. Nate Dec 2022

Does Predation Environment Affect Repeated Responses To Predation Cuesâ In The Fishâ Brachyrhaphis Rhabdophora?, Madeleine S. Nate

Theses and Dissertations

Individual organisms face trade-offs when dealing with predation—more time spent avoiding predators often results in less time allocated to energy acquisition and reproductive-related activities. Individuals that optimize this trade-off and respond appropriately to current risk levels in their environment should be at an advantage. What is less clear is whether this tradeoff changes when individuals are repeatedly exposed to a predation threat. There may be advantages to responding consistently to every signal of threat, but it might also be advantageous to modulate individual behavior. Moreover, it is unclear how evolutionary history of a population might affect such individual responses. Our …

Go to article

High School Dropouts, Higher Education Dreams, And Achievement: A Six-Year Study Of A High-Stakes Test In Brazil, Eveline Miranda Dec 2022

High School Dropouts, Higher Education Dreams, And Achievement: A Six-Year Study Of A High-Stakes Test In Brazil, Eveline Miranda

Theses and Dissertations

Rumberger (2020) observed that "dropping out of school has economic and social consequences both for dropouts themselves and for the country as a whole" (p. 151). Every year, many Brazilians drop out of school due to work, early pregnancies, marriage, drug consumption, crime, etc. Dropping out of school can occur due to learning challenges, poor attendance, discipline problems, or a lack of access to high school institutions. Dropouts can experience depression and anxiety and are more likely to attempt suicide. The present dissertation includes two different papers about dropouts. The first paper uses fixed effect regression to show the main …

Go to article

Structural Reasoning With Rational Expressions, Dana Steinhorst Dec 2022

Structural Reasoning With Rational Expressions, Dana Steinhorst

Theses and Dissertations

Many students struggle to make sense of algebraic expressions in math. This lack of understanding results in students making symbolic manipulation errors, hindering their procedural fluency. Researchers believe these errors are linked to students' lack of structural reasoning. While research has shown that students rarely engage in expert structural reasoning, little is known about how students actually reason structurally. In this study, I interviewed six high school calculus students to study the way they identified, matched, and evaluated structures as they solved problems involving rational expressions and equations. I analyzed the participant interviews and outlined the matching process they used …

Go to article

Teaching Social-Emotional Learning To Children With Autism Using Animated Avatar Video Modeling, Emelie Davis Dec 2022

Teaching Social-Emotional Learning To Children With Autism Using Animated Avatar Video Modeling, Emelie Davis

Theses and Dissertations

People with a diagnosis of autism spectrum disorder (ASD) often have difficulties understanding or applying skills related to Social-Emotional Learning (SEL). An individual having a better understanding of SEL concepts is generally associated with more fulfilling connections with others and increased satisfaction in life. Since people with ASD tend to have greater success with learning in structured environments, we created a module to teach these skills using Nearpod. These modules were created with videos of a person embodying a cartoon dog face using Animoji for two reasons; because the animation was meant to appeal to children, and the creation was …

Go to article

Determination Of A Catalytic Mechanism By Time Resolved Fourier Transform Infrared Spectroscopy And Time Domain Analysis Of Data From Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Jacob T. Davis Dec 2022

Determination Of A Catalytic Mechanism By Time Resolved Fourier Transform Infrared Spectroscopy And Time Domain Analysis Of Data From Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Jacob T. Davis

Theses and Dissertations

Heterobimetallic catalysts offer large potential for efficient and selective catalysis of a wide range of reactions. Better understanding of these catalytic mechanisms could yield further improvement in their catalytic abilities. Cp(CO)2Fe-Cu(IPr) (IPr = N,N-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) is a catalyst that has been reported to catalyze arene borylation. The catalytic mechanism of this catalyst that had been previously proposed had the initial step being a metal-metal cleavage. However, computational modeling suggested an alternate mechanism that could be more energetically favorable. Rather than a metal-metal cleavage as the initial step, we proposed a photoactivated carbonyl dissociation. To support this proposition, we performed time resolved …

Go to article

Zeros Of A Family Of Complex-Valued Harmonic Rational Functions, Alexander Lee Dec 2022

Zeros Of A Family Of Complex-Valued Harmonic Rational Functions, Alexander Lee

Theses and Dissertations

The Fundamental Theorem of Algebra is a useful tool in determining the number of zeros of complex-valued polynomials and rational functions. It does not, however, apply to complex-valued harmonic polynomials and rational functions generally. In this thesis, we determine behaviors of the family of complex-valued harmonic functions $f_{c}(z) = z^{n} + \frac{c}{\overline{z}^{k}} - 1$ that defy intuition for analytic polynomials. We first determine the sum of the orders of zeros by using the harmonic analogue of Rouch\'e's Theorem. We then determine useful geometry of the critical curve and its image in order to count winding numbers by applying the harmonic …

Go to article

Single-Shot, Ultrafast, Multi-Frame X-Ray Imaging Of Defect-Bearing Ablator Materials In Extreme Conditions, Daniel S. Hodge Dec 2022

Single-Shot, Ultrafast, Multi-Frame X-Ray Imaging Of Defect-Bearing Ablator Materials In Extreme Conditions, Daniel S. Hodge

Theses and Dissertations

Characterization of the dynamic behavior of defect-bearing ablator materials subjected to extreme conditions is essential in advancing fusion energy as an reliable and abundant energy source. By understanding how materials evolve spatially and temporally we can minimize hydrodynamic instabilities, which are major contributing factors to energy yield degradation in inertial confinement fusion (ICF) experiments. In this thesis we demonstrate the capabilities of an ultrafast x-ray imaging (UXI) detector, the Icarus V2, where we capture multiple frames of single void-bearing sample compressed by a high-intensity laser shockwave. Using the Matter in Extreme Conditions (MEC) instrument at the Linac Coherent Light Source …

Go to article

Creating An Instrument To Explore The Self-Efficacy Of Writing Instructors To Teach Apprehensive Writers, Kathleen Marie Romrell Dec 2022

Creating An Instrument To Explore The Self-Efficacy Of Writing Instructors To Teach Apprehensive Writers, Kathleen Marie Romrell

Theses and Dissertations

Writing apprehension is a writing difficulty that can impair the writing experiences of students. While researchers have proposed many interventions that teachers can implement to assist their students who struggle with writing apprehension, there has not been an instrument that is designed to measure teacher self-efficacy to help these same students. This study created such an instrument, entitled the Self-efficacy to Teach Apprehensive Writers Scale (STAWS), using Tschannen-Moran and Woolfolk Hoy’s (2001) Teacher Sense of Efficacy Scale and Daly and Miller’s (1975) Writing Apprehension Test as model instruments. The new instrument was designed to measure writing instructor self-efficacy to teach …

Go to article

Delivering Explicit Math Instruction Through Point-Of-View Video Modeling To Elementary Students With Autism Spectrum Disorder, Patsy Mccray Gibbs Dec 2022

Delivering Explicit Math Instruction Through Point-Of-View Video Modeling To Elementary Students With Autism Spectrum Disorder, Patsy Mccray Gibbs

Theses and Dissertations

There is significant literature demonstrating the effectiveness of video modeling for teaching skills to students with disabilities. Still, much less is known about how video modeling, particularly point-of-view video modeling (POV-VM), might be applied to teach academic skills to children with an autism spectrum disorder. This multiple probe single-case design study used explicit instruction techniques to teach multiplication, division, and fraction skills to two elementary-aged students with an autism spectrum disorder. A visual analysis of the data showed that POV-VM using explicit techniques to deliver the videos is an effective intervention for autistic students This research study adds to the …

Go to article

Decision-Based Learning As A Tool For Teaching Statistics In A Peruvian University, Gloria Mora Barba Dec 2022

Decision-Based Learning As A Tool For Teaching Statistics In A Peruvian University, Gloria Mora Barba

Theses and Dissertations

Many students find that learning statistics is difficult, especially novice learners first taking statistical classes. Instructors also struggle to teach statistics due to many challenges, such as students' misconceptions, lack of math skills, negative attitudes, and deficient instructional methods. A new pedagogical approach called Decision-Based Learning (DBL) has been developed to help instructors and students overcome these challenges. A group of Peruvian university professors in 2018 and 2019 were trained to use DBL. However, limited studies have explored DBL instructors' and students' experiences using DBL in Peru. The aim of this qualitative research study is to deeply understand the experiences …

Go to article

Quantifying Shape Variation In An Antisymmetrical Trait In Xenophallus Umbratilis, Mary-Elise Johnson Nielsen Dec 2022

Quantifying Shape Variation In An Antisymmetrical Trait In Xenophallus Umbratilis, Mary-Elise Johnson Nielsen

Theses and Dissertations

Antisymmetry is a striking, yet puzzling form of biological asymmetry. The livebearing fish Xenophallus umbratilis exhibits antisymmetry in the male intromittent organ and provides a system that is well-suited for studying the nature of variation in antisymmetrical traits. Using geometric morphometrics, I test the hypothesis that because the gonopodium is critical to fitness there will not be significant differences in gonopodium shape between the two gonopodial morphs in this species. My results are consistent with this prediction, though I found that gonopodium shape did differ with gonopodium size.

Go to article

Identity Work To Teach Mathematics For Social Justice, Navy B. Dixon Dec 2022

Identity Work To Teach Mathematics For Social Justice, Navy B. Dixon

Theses and Dissertations

In this thesis, mathematics educators are conceptualized as individuals with multiple, simultaneous figured worlds that inform their decisions while planning. The study explores how two mathematics educators negotiated and orchestrated their figured worlds to plan two mathematics lessons for social justice. The results highlight how numerous the figured worlds each participant surfaced through background interviews. Some of the figured worlds were elicited by the interview questions (i.e., Race, Family, Social Justice Teaching) but other figured worlds organically surfaced through the interviews (i.e., Sexuality, Community, Activism, Critical Information Consumption). A discursive analysis of a selection of these figured worlds revealed conceptualizations …

Go to article

"This Is The Way": Gender Representation In Disney's The Mandalorian, Brooke Solorio Dec 2022

"This Is The Way": Gender Representation In Disney's The Mandalorian, Brooke Solorio

Theses and Dissertations

When Disney released The Mandalorian, it quickly became the top show on its highly popular streaming platform. As with all media wielding this level of exposure, it is important to closely examine its content for depictions of peoples including females. In accordance with Sandra Bem's gender schema theory, the implicit messaging in this series can influence the formation of people's mental shortcuts about what it means to be female. This study employs content analysis to illuminate the portrayal of physical and non-physical attributes of the women present in the two seasons existing at the time of this study. Results reveal …

Go to article

Is Teaching Experience A Predictor For School Psychologists' Confidence And Competence In Behavior Intervention Plans?, Misty Dawn Lainé Coplan Dec 2022

Is Teaching Experience A Predictor For School Psychologists' Confidence And Competence In Behavior Intervention Plans?, Misty Dawn Lainé Coplan

Theses and Dissertations

The Individuals with Disabilities Education Improvement Act (IDEIA) introduced Behavior Intervention Plans (BIPs) into United States law in 1990, and the reauthorization of IDEIA occurred in 2004. Even though BIPs have been codified into law, school personnel struggle to meet BIP mandates due to poor implementation fidelity. Barriers for BIP implementation are varied, but there is little research regarding whether practitioner competence and confidence through teaching experience is a factor. School psychologists (N = 122) from eight states completed a self-evaluation survey using the tailored design method. Results from the survey compared responses from school psychologists with and without teaching …

Go to article

Performance Criteria For Knee-Brace Timber Frames With Mortise And Tenon Joints, Zachary J. Halisky Dec 2022

Performance Criteria For Knee-Brace Timber Frames With Mortise And Tenon Joints, Zachary J. Halisky

Theses and Dissertations

Traditional mortise and tenon timber frames have been used in modern construction for a substantial period of time with acceptable performance against weather phenomena and other hazards. However, performance criteria for this style of timber framing are not well defined in current codes and standards. To determine performance criteria for free-standing timber frames with knee-braces, three tasks were undertaken: (1) Two timber frame specimens were tested under cyclic loads to determine hysteretic behavior, damage states, and to explore rehabilitation of a damaged member using self-tapping screws. Three damage states for were identified: peg shear, tenon tearout, and post or beam …

Go to article

Novel Patterns For Nucleosome Positioning: From In Vitro To In Vivo, David Andrew Bates Dec 2022

Novel Patterns For Nucleosome Positioning: From In Vitro To In Vivo, David Andrew Bates

Theses and Dissertations

The fundamental unit of chromatin is the nucleosome, which consists of a core of eight proteins wrapped by DNA. This core is composed of four pairs of histone proteins: H2A, H2B, H3, and H4. The DNA wraps around the protein core ~1.7 times, facilitating compaction of DNA length in the cell. Further, the location of nucleosomes makes genomic elements encoded in the DNA, such as promoters or enhancers, accessible or inaccessible to RNA polymerase and transcription factors. Thus, where nucleosomes are located (or positioned), can play a major role in transcription or other cellular processes. Additionally, histone proteins are frequently …

Go to article

Voices From The Field: A Critical Incident Study Of Teachers' Perspectives On What Helps And Hinders The Implementation Of Behavior Intervention Plans In The Classroom, Emily Anne Cragun Dec 2022

Voices From The Field: A Critical Incident Study Of Teachers' Perspectives On What Helps And Hinders The Implementation Of Behavior Intervention Plans In The Classroom, Emily Anne Cragun

Theses and Dissertations

Student problem behavior continues to be a major issue in schools for both teachers and students. Teachers often feel they are not provided with enough resources to help them manage this problem behavior. Students who engage in problem behavior tend to struggle socially and academically. When classified with an emotional disturbance, students are especially at risk due to the severity of the problem behavior they exhibit (Brauner & Stephens, 2006). This study examined how function-based interventions can help both teachers and students better manage the effects of problem behavior. There are several factors believed to hinder the effectiveness of function-based …

Go to article

Principles For Using Remote Data Collection Devices And Deep Learning In Evaluating Social Impact Indicators Of Engineered Products For Global Development, Bryan J. Stringham Dec 2022

Principles For Using Remote Data Collection Devices And Deep Learning In Evaluating Social Impact Indicators Of Engineered Products For Global Development, Bryan J. Stringham

Theses and Dissertations

Evaluating the social impacts of engineered products, or effects products have on the daily lives of individuals, is critical to ensuring that products are having positive impacts while avoiding negative impacts and to learning how to improve product designs for a more positive social impact. One approach to quantifying a product's social impact is to use social impact indicators that combine user data in a meaningful way to give insight into the current social condition of an individual or population. However, determining social impact indicators relative to engineered products and individuals in developing countries can be difficult when there is …

Go to article

How Universities Use Twitter To Communicate About Mental Health, Sarah Elizabeth Polhill Dec 2022

How Universities Use Twitter To Communicate About Mental Health, Sarah Elizabeth Polhill

Theses and Dissertations

From a sample of over three million tweets from universities in the US, we described the characteristics of universities' communication about mental health on Twitter, including common keywords, bigrams, linked resources, and hashtags, as well as the frequency of dialogic communication and mental health tweets over time, especially in the context of the COVID-19 Pandemic. This study uses data mining to collect tweets from official university Twitter accounts and selected accounts of university wellness and counseling programs. Relevant tweets were collected from a large sample using keywords and bigrams relevant to mental health from the Twitter accounts of IACS accredited …

Go to article

Localization Of Open Educational Resources By Facilitators Of A Human Rights Course In Ghana, Emily Durham Bradshaw Dec 2022

Localization Of Open Educational Resources By Facilitators Of A Human Rights Course In Ghana, Emily Durham Bradshaw

Theses and Dissertations

Research on the use of Open Educational Resources (OER) often notes the potential benefits for users to revise, reuse, and remix OER to localize it for specific learners. However, a gap in the literature exists in terms of research that explores how this localization occurs in practice. This is a significant gap given the current flow of OER from higher-income countries in the Global North to lower-income countries in the Global South (King et al., 2018). This study explores how OER from one area of the world is localized when it is used in a different cultural context. As part …

Go to article

An Augmented Reality Maintenance Assistant With Real-Time Quality Inspection On Handheld Mobile Devices, James Thomas Frandsen Dec 2022

An Augmented Reality Maintenance Assistant With Real-Time Quality Inspection On Handheld Mobile Devices, James Thomas Frandsen

Theses and Dissertations

With the advances of industry 4.0, augmented reality (AR) devices are being deployed across the manufacturing sector to enhance worker perception and efficiency. AR is often used to deliver spatially relevant work instructions on mobile devices for maintenance procedures on the factory floor. In these situations, workers use their mobile devices to view instructions in the form of 3D animations and annotations that directly overlay the equipment being maintained. Workers then follow the AR instructions and must ultimately rely on their own judgement and knowledge of the procedure as they progress from step to step. An AR assistant that could …

Go to article

Effects Of Microbial Transglutaminase On Gluten-Free Sourdough Bread Structure And Loaf Characteristics, Anna J. Redd Dec 2022

Effects Of Microbial Transglutaminase On Gluten-Free Sourdough Bread Structure And Loaf Characteristics, Anna J. Redd

Theses and Dissertations

In an effort to mimic the continuous protein matrix found in gluten-containing breads, the effects of the enzyme microbial transglutaminase were tested in gluten-free (GF) sourdough breads containing five different GF flours: chickpea, brown rice, white rice, oat, and quinoa. The utilization of transglutaminase in GF sourdough bread applications was shown to improve some of the final bread characteristics of GF breads. White and brown rice GF sourdough loaves at 24 hours showed a 28% and 13% decrease in crumb firmness with the addition of 2 U/g dough, respectively. Quinoa-GF sourdough breads at 24 hours showed a 6% increase in …

Go to article

Improving Spatial Resolution Of Time Reversal Focusing Using Arrays Of Acoustic Resonators, Adam David Kingsley Dec 2022

Improving Spatial Resolution Of Time Reversal Focusing Using Arrays Of Acoustic Resonators, Adam David Kingsley

Theses and Dissertations

Using a near-field array of acoustic resonators, it is possible to modify a focused pressure field and enforce a spatial frequency corresponding to the resonator array spacing. This higher spatial frequency makes it possible to focus and image with a resolution that is better than if the focusing were in free space. This near-field effect is caused by the phase shifting properties of resonators and, specifically, the delayed phase found in waves with a temporal frequency lower than that of the resonators in the array. Using time reversal, arrays of resonators are explored and the subwavelength focusing is used to …

Go to article

Missionaries And Manipulation: Exploring Vulnerabilities And Safeguards For Young Missionaries In The Church Of Jesus Christ Of Latter-Day Saints, Rachel Sowa Ray Dec 2022

Missionaries And Manipulation: Exploring Vulnerabilities And Safeguards For Young Missionaries In The Church Of Jesus Christ Of Latter-Day Saints, Rachel Sowa Ray

Undergraduate Honors Theses

This project aims to better understand the vulnerabilities of missionaries of the Church of Jesus Christ of Latter-day Saints as they relate to emotional abuse stemming from companions, mission leaders, and those they teach. It compiles the current research on relationship abuse and draws connections between these issues and missionaries. Emotional abuse is defined. We review various elements of missionary life, including the age of missionaries, religious pressures, pressures inherent in missionary life, and cultural naiveté. Each of these is tied to potential weaknesses in which emotional abuse can impact the life and relationships of a missionary. Suggestions for safeguards …

Go to article

Friction Taper Plug Welding As A Repair Method For Fatigue Damage Around Fastener Holes In Aerospace Structures, David Carl Sumsion Dec 2022

Friction Taper Plug Welding As A Repair Method For Fatigue Damage Around Fastener Holes In Aerospace Structures, David Carl Sumsion

Theses and Dissertations

This work details an adaptation of the friction taper plug welding (FTPW) process to repair fatigue damage in 6.35mm AA 7050 t-7451 plate. Aircraft components experience fatigue damage around fastener holes. This damage can be mitigated by enlarging fastener holes. There is no effective repair procedure once holes reach a maximum allowable size. Damaged components must be replaced. A suitable repair process would lead to substantial savings in both time and money. A simulated repair process was developed by machining holes in 6.35mm AA 7050 t-7451 plate. These hoes were then plugged using the FTPW process. Microhardness testing and metallographic …

Go to article

Focusing Of High-Amplitude Sound Waves Using The Time Reversal Process, Brian D. Patchett Dec 2022

Focusing Of High-Amplitude Sound Waves Using The Time Reversal Process, Brian D. Patchett

Theses and Dissertations

Time reversal is a method often used to focus sound to a desired location, and works best in a reverberant environment. The effect of focus location within a reverberant environment is presented first, revealing that proximity to reflecting surfaces has a significant effect on the amplitude of the focus both experimentally and when using a modal summation model. These effects are a primary component to creating focus signals at high amplitudes. High-amplitude focusing experiments show that when multiple sources are used simultaneously to generate a focus, a peak amplitude pressure spike of 200 dB can be achieved in air. A …

Go to article

Development Of A 3d-Printed Microfluidic Droplet-On-Demand System For The Deterministic Encapsulation And Processing Of Biological Materials, Chandler A. Warr Dec 2022

Development Of A 3d-Printed Microfluidic Droplet-On-Demand System For The Deterministic Encapsulation And Processing Of Biological Materials, Chandler A. Warr

Theses and Dissertations

The growing threat of antimicrobial resistance is among the largest concerns in the world today. One method under development to combat this issue is the encapsulation of microbes in microfluidic droplets for single-cell testing. This method may be able to circumvent the need for a traditional positive cell culture which consumes the majority of the testing time using current diagnostic methods. This dissertation presents a method by which to deterministically encapsulate microbes using an artificial intelligence object detection algorithm and a Droplet-On-Demand microfluidic device. To accomplish this, the Droplet-On-Demand microfluidic device was first developed using a unique 3D-printing manufacturing method. …

Go to article

Motivation Toward Sport, Physical Activity And Exercise Between College Students In Hungary And The United States During Covid-19, Whitney Gene Davies Dec 2022

Motivation Toward Sport, Physical Activity And Exercise Between College Students In Hungary And The United States During Covid-19, Whitney Gene Davies

Theses and Dissertations

During the COVID-19 pandemic many researchers noted changes in exercise, physical activity, and sports behaviors. The current study attempts to identify aspects of motivation for physical activity, exercise, and sport for students in two countries, the USA and Hungary. The current study used the Sports Motivation Scale II to measure students’ motivation based on the Self-Determination Theory. Results indicated that students in the USA were more motivated for exercise, physical activity, and sport during the COVID-19 pandemic than were their Hungarian counterparts. Students in the United States scored higher (MUS = 17.88) in overall motivation than their Hungarian counterparts (MHungary …

Go to article

Facies Architecture And Provenance Of The Highly Progradational, Fluvial Dominated Deltaic Depositional System Of The Cretaceous Nanushuk Formation On The North Slope Of Alaska, Sarah N. Naone Dec 2022

Facies Architecture And Provenance Of The Highly Progradational, Fluvial Dominated Deltaic Depositional System Of The Cretaceous Nanushuk Formation On The North Slope Of Alaska, Sarah N. Naone

Theses and Dissertations

The Cretaceous Nanushuk Formation of northern Alaska records extremely rapid shoreline progradation across the Colville Basin during the Albian-Cenomanian epochs. Additionally, it records a period of tectonic realignment in the region, as the main sediment source began to transition from the Chukotkan orogeny to the west to a more local sediment source of the proximal Brooks Range to the south. Through detailed outcrop characterization and 3-D modeling of three exposed outcrops along the axial trend of the Colville Basin on the North Slope and the Upper section of the Nanushuk, this study clarifies the relative timing of the early Brookian …

Go to article

First Prev Next Last