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

Digital Commons Network™

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

2020

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 27301 - 27330 of 32163

Full-Text Articles in Entire DC Network

Effect Of The Height Of The Stem On The Polysaccharide Composition Ofpinus Brutia (Ten) Wood And Kraft-Pulp, Ayben Kiliç Pekgözlü, Muhsi̇n Taş, Esra Ceylan, Jarl Hemming Jan 2020

Effect Of The Height Of The Stem On The Polysaccharide Composition Ofpinus Brutia (Ten) Wood And Kraft-Pulp, Ayben Kiliç Pekgözlü, Muhsi̇n Taş, Esra Ceylan, Jarl Hemming

Turkish Journal of Agriculture and Forestry

The first goal of this study was to determine the polysaccharide composition of Pinus brutia wood and how this composition changes during kraft pulping. The second goal was to determine the effect of the stem height on chemical composition. The content of hemicelluloses was about 280 mg/g at a height of 1.3 m, whereas the content was about 300 mg/g at the top of the stem (4.3 m). The main sugars in the wood of P. brutia were mannose (102 mg/g dw), xylose (69 mg/g dw), and glucose (44 mg/g dw). During kraft pulping, 52% of the total hemicelluloses were …

Go to article

Seed Biopriming Mitigates Terminal Drought Stress At Reproductive Stage Of Maize Byenhancing Gas Exchange Attributes And Nutrient Uptake, Hamid Nawaz, Nazim Hussain, Moazzam Jamil, Azra Yasmeen, Asad Bukhari, Muhammad Auringzaib, Muhammad Usman Jan 2020

Seed Biopriming Mitigates Terminal Drought Stress At Reproductive Stage Of Maize Byenhancing Gas Exchange Attributes And Nutrient Uptake, Hamid Nawaz, Nazim Hussain, Moazzam Jamil, Azra Yasmeen, Asad Bukhari, Muhammad Auringzaib, Muhammad Usman

Turkish Journal of Agriculture and Forestry

Maize (Zea mays L.) is an important cereal crop around the globe. Scarcity of water is one of the major abiotic factors reducing yields in this crop. The development of maize varieties with stress-tolerant traits is time-consuming and laborious work. There is a strong need to develop techniques that could have the effect of reducing irrigation requirements and mitigating waterstress conditions. Biopriming (seed priming with bacterial inoculation) is a newly emerging, simple, and easily adaptable strategy to mitigate drought stress for enhanced crop production. The current trial was executed using a randomized complete block design with factorial arrangements during the …

Go to article

The Effects Of Wheatgrass Length On Antioxidant Activity And Total Phenolic Content Inwheatgrass (Triticum Spp.), Yusuf Şavşatli Jan 2020

The Effects Of Wheatgrass Length On Antioxidant Activity And Total Phenolic Content Inwheatgrass (Triticum Spp.), Yusuf Şavşatli

Turkish Journal of Agriculture and Forestry

This study was carried out with the aim of determining the effects of wheatgrass lengths on antioxidant activity and total phenolic content of wheatgrass belonging to different cultivars (Triticum spp.) in laboratory conditions in 2017. When the wheat seedlings grown in plastic containers under soilless conditions reached three levels of wheatgrass length (5-6, 8-9, and 11-12 cm), the seedlings were cut from the root collar and dried in an oven. As a result of analysis of the dried material, it was found that the cut lengths of wheatgrass significantly (P < 0.01) affected antioxidant activity and total phenolic content of wheatgrass. Ten wheat cultivars belonging to Triticum monococcum L., T. durum L., and T. aestivum L. were used. Wheatgrass was cut at three lengths (5-6, 8-9, and 11-12 cm). It was found that the wheatgrass lengths had a significant (P < 0.01) effect on antioxidant and total phenolic content of wheatgrass. In addition, in terms of these traits, the most suitable wheatgrass length for cutting changed depending on the wheat species and also cultivars. The highest (P < 0.01) antioxidant activity and total phenolic content (TPC) were also determined at three wheatgrass lengths in cultivar Sarıbaşak. The average values obtained from Sarıbaşak wheatgrass were 31.0% for DPPH-free radical scavenging activity and 51.6 mg GAE-1 dry weight for TPC. The results of the analysis suggested that Sarıbaşak is the most promising cultivar in terms of both antioxidant activity and TPC in wheatgrass.

Go to article

Endogenous Gibberellins And Abscisic Acid-Metabolites: Their Role For During Flower Budabscission And Embryo Development In Pistachio, Muhammet Ali̇ Gündeşli̇ Jan 2020

Endogenous Gibberellins And Abscisic Acid-Metabolites: Their Role For During Flower Budabscission And Embryo Development In Pistachio, Muhammet Ali̇ Gündeşli̇

Turkish Journal of Agriculture and Forestry

This study was carried out to determine the effect of different growth periods and possible role of gibberellins (GAs) and abscisic acid (ABA) metabolites on the alternate bearing of the pistachio (Pistacia vera L.). For this purpose, the levels of GAs and ABA in the panicles and nuts of the trees during flower bud abscission and embryo development were analyzed in the crop "on" year. The results showed significant differences and changes in ABA and GAs among the tissues and periods investigated. Dihydrophaseic acid (DPA) and GA19 were the dominant ABA and GAs in the pistachio concentrates analyzed in this …

Go to article

The Effect Of Putrescine On Dna Methylation On Cabbage Plant Under Salt Stress Conditions, Emi̇ne Orhan, Furkan Uzundumlu, Esma Yi̇ği̇der, Murat Aydin Jan 2020

The Effect Of Putrescine On Dna Methylation On Cabbage Plant Under Salt Stress Conditions, Emi̇ne Orhan, Furkan Uzundumlu, Esma Yi̇ği̇der, Murat Aydin

Turkish Journal of Agriculture and Forestry

Although studies on tolerance to abiotic stress conditions in cabbage species and varieties have been carried out, these studies have generally been conducted in field and greenhouse pot experiments. In such studies, morphological measurements and evaluations have been made. However, there are deficiencies in physiological and molecular detection studies. Therefore, this study focused on detecting any DNA methylation change in the genome of cabbage seedlings when NaCl (salt stress) in combination with putrescine (Put) was applied. Different concentrations of NaCl and Put were applied to white head cabbage (Brassica oleraceae L. cv Yalova-F1). Germination rate, root length, shoot length, seedling …

Go to article

Screening Of Factors Affecting Somatic Callusing And Embryo Induction In Allium Cepa L.Through Plackett?Burman Methodology, Kourosh Keighobadi, Maryam Golabadi, Mahdi Khozaei, Abdol Majid Rezai Jan 2020

Screening Of Factors Affecting Somatic Callusing And Embryo Induction In Allium Cepa L.Through Plackett?Burman Methodology, Kourosh Keighobadi, Maryam Golabadi, Mahdi Khozaei, Abdol Majid Rezai

Turkish Journal of Agriculture and Forestry

Induction of embryonic callus through available asexual explant culture is applied in the protection and maintenance of cytoplasmic-male sterility and in the maintenance of other lines of onion (Allium cepa L.). Usage of the Plackett?Burman (PB) experimental design has been suggested as a screening method for many variables that influence the desired induction. In order to overcome limitations of standard experimental designs and prioritization of media culture components, a systematic investigation was carried out using the PB design. In this investigation, the effects of different factors such as 2,4-D, putrescine, carbohydrate sources (maltose, sorbitol, and sucrose), silver nitrate, glutamine, and …

Go to article

Cover And Contents Jan 2020

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

Go to article

Identification Of Genetic Diversity Among Mutant Lemon And Mandarin Varieties Usingdifferent Molecular Markers, Görkem Sülü, Yildiz Kaçar, İlknur Polat, Aytül Ki̇tapci, Ertuğrul Turgutoğlu, Özhan Şi̇mşek, Gül Satar Jan 2020

Identification Of Genetic Diversity Among Mutant Lemon And Mandarin Varieties Usingdifferent Molecular Markers, Görkem Sülü, Yildiz Kaçar, İlknur Polat, Aytül Ki̇tapci, Ertuğrul Turgutoğlu, Özhan Şi̇mşek, Gül Satar

Turkish Journal of Agriculture and Forestry

Mandarin (Citrus reticulate Blanco) and lemon (C.limon L.) are among the most cultivated Citrus species in the world. Among different approaches, gamma radiation is widely used to induce mutations in citrus breeding studies. Gamma radiation causes DNA damage, randomly inducing several mutations in the genome. Molecular techniquesarewidely used to detect such induced mutations and genetic diversity in plants.In this study, simple sequence repeats (SSR), inter-simple sequence repeat (ISSR) and single-strand conformation polymorphism (SSCP) markers were used to detectthe induced mutations andgenetic diversityin someirradiated mandarin and lemon genotypes in comparison with standard citrus varieties. The irradiated genotypes used in this study …

Go to article

Dna Fingerprinting And Genetic Diversity Analysis Of World Quinoa Germplasm Usingipbs-Retrotransposon Marker System, Muzaffer Barut, Muhammad Azhar Nadeem, Tolga Karaköy, Faheem Shahzad Baloch Jan 2020

Dna Fingerprinting And Genetic Diversity Analysis Of World Quinoa Germplasm Usingipbs-Retrotransposon Marker System, Muzaffer Barut, Muhammad Azhar Nadeem, Tolga Karaköy, Faheem Shahzad Baloch

Turkish Journal of Agriculture and Forestry

Quinoa is an important staple food crop for millions of impoverished rural inhabitants of the Andean region. Quinoa is considered a good source of protein,vitamins, minerals, and antioxidants. This study aimed to investigate the genetic diversity and population structure of world quinoa germplasm originating from 8 countries through the iPBS-retrotransposon marker system. Molecular characterization was performed using the 11 most polymorphic primers. A total of 235 bands were recorded, of which 66.8% were polymorphic. Mean polymorphism information content (PIC) was 0.410. Various diversity indices including mean effective number of alleles (1.269), mean Shannon's information index (0.160) and gene diversity (0.247) …

Go to article

Dihydroquercetin Increases The Adaptive Potential Of Wild Soybean Against Copper Sulfateand Cadmium Sulfate Toxicity, Darya Konstantinovna Chernyshuk, Lubov Yegorovna Ivachenko, Hülya Doğan, Ghulam Raza, Muhammad Amjad Ali, Kirill Sergeyevich Golokhvast, Muhammad Amjad Nawaz Jan 2020

Dihydroquercetin Increases The Adaptive Potential Of Wild Soybean Against Copper Sulfateand Cadmium Sulfate Toxicity, Darya Konstantinovna Chernyshuk, Lubov Yegorovna Ivachenko, Hülya Doğan, Ghulam Raza, Muhammad Amjad Ali, Kirill Sergeyevich Golokhvast, Muhammad Amjad Nawaz

Turkish Journal of Agriculture and Forestry

In this study, the mechanism of the biochemical adaptation of wild soybean to the experimentally modeled effects of cadmium sulfate and copper sulfate in approximately double permissible concentration was investigated. The extracted concentrations of cadmium and copper in the experimental soil were determined by inversion voltammetry - 1.46 and 48.25 mg/kg, respectively. Growing soybeans in soil with the addition of copper and cadmium sulfates led to an increase in the concentration of malonic dialdehyde in soybean seeds relative to control by 62% and 38%, respectively, which confirmed the strengthening of oxidative processes. There was also an increase in the specific …

Go to article

Cover And Contents Jan 2020

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

Go to article

Changes In The Biochemical Compounds Of Vaccinium Myrtillus, Vaccinium Vitis-Idaea, And Forest Litter Collected From Various Forest Types, Vilma Kaskoniene, Kristina Bimbiraite-Surviliene, Paulius Kaskonas, Nicola Tiso, Laima Cesoniene, Remigijus Daubaras, Audrius Sigitas Maruska Jan 2020

Changes In The Biochemical Compounds Of Vaccinium Myrtillus, Vaccinium Vitis-Idaea, And Forest Litter Collected From Various Forest Types, Vilma Kaskoniene, Kristina Bimbiraite-Surviliene, Paulius Kaskonas, Nicola Tiso, Laima Cesoniene, Remigijus Daubaras, Audrius Sigitas Maruska

Turkish Journal of Agriculture and Forestry

The aim of this study was to evaluate the impact of forest clear-cutting on the phenolic compounds and antiradical activity of Vaccinium myrtillus, Vaccinium vitis-idaea, and forest litter collected during the vegetation stages in 2 forests types (Pinetum vacciniosum and Pinetum vaccinio-myrtillosum). The Folin-Ciocalteu method, aluminum trichloride colorimetric assay, and 2,2-diphenyl-1- picrylhydrazyl (DPPH) test were applied to perform the total phenolic content (TPC), total flavonoid content (TFC), and antiradical activity analyses of the extracts of the underground and aboveground parts of the plants and forest litter. The TPC content varied from 35.87 to 229.76 mg/g (expressed as rutin equivalents) and …

Go to article

Efficient Protoplast Isolation From Ovule-Derived Embryogenic Callus In Citrus Volkameriana, Berken Çi̇men Jan 2020

Efficient Protoplast Isolation From Ovule-Derived Embryogenic Callus In Citrus Volkameriana, Berken Çi̇men

Turkish Journal of Agriculture and Forestry

The present study reports on the isolation of viable protoplast from ovule-derived embryogenic calli of Volkameriana (Citrus volkameriana L.), which is a rootstock in high demand for lemon production.Ovules of C. Volkameriana isolated at 3 different immature fruit stages, comprising4, 8, and 12 weeks after anthesis (WAA), were cultured on5 different media in order to produce embryogenic callus lines as a source material for protoplast isolation. EME medium (MT basal medium + 0.5 gL-1 malt extract), with the addition of phytohormones [kinetin (KIN), 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (BAP)] at different concentrations, were tested for callogenesis. According to 2-way ANOVA, …

Go to article

Molecular Cytogenetic Characterization Of Common Bean (Phaseolus Vulgaris L.) Accessions, Gülsemi̇n Savaş Tuna, Gülru Yücel, Tansel Kaygisiz Aşçioğul, Duygu Ateş, Dursun Eşi̇yok, Muhammed Bahatti̇n Tanyolaç, Meti̇n Tuna Jan 2020

Molecular Cytogenetic Characterization Of Common Bean (Phaseolus Vulgaris L.) Accessions, Gülsemi̇n Savaş Tuna, Gülru Yücel, Tansel Kaygisiz Aşçioğul, Duygu Ateş, Dursun Eşi̇yok, Muhammed Bahatti̇n Tanyolaç, Meti̇n Tuna

Turkish Journal of Agriculture and Forestry

With an annual global production of approximately 25 million tons, the common bean (Phaseolus vulgaris L), a member of the genus Phaseolus, is one of the major protein sources used as food for humans. In this study, it was aimed to investigate the genome size of the common bean genetic resource collection (154 common bean accessions) in Turkey by flow cytometry (FCM) and determine whether geographical variables affected the genome size. In addition, the number and distribution of 5S and 45S ribosomal DNA loci were designated by performing a fluorescence in situ hybridization (FISH) analysis in some of the accessions. …

Go to article

Determination Of The Chemical Composition Of Seeds, Peels, And Seedcakes From Two Genotypes Of Cape Gooseberry (Physalis Peruviana L.), Venelina Popova, Zhana Petkova, Tanya Ivanova, Magdalena Stoyanova, Nikolay Panayotov, Nadezhda Mazova, Albena Stoyanova Jan 2020

Determination Of The Chemical Composition Of Seeds, Peels, And Seedcakes From Two Genotypes Of Cape Gooseberry (Physalis Peruviana L.), Venelina Popova, Zhana Petkova, Tanya Ivanova, Magdalena Stoyanova, Nikolay Panayotov, Nadezhda Mazova, Albena Stoyanova

Turkish Journal of Agriculture and Forestry

Physalis peruviana L. fruit (Cape gooseberry, CG) is a rich source of phytonutrients, including vitamins, minerals, polyphenols, polyunsaturated fatty acids (FAs), phytosterols, dietetic fibers, and others. The popularity and production areas of CG have been expanding worldwide, thus producing fruit with origin-substantiated differences in their nutrient composition.This study was based on the comparative assessment of 2 genotypes of CG produced in Bulgaria (CG-P and CG-F), through analysis of the lipid fraction of different fruit elements (seeds, peels), and further examination of the extracted seedcakes. The CG seeds reasonably yielded more oil (17.0%-22.2%) than the isolated peels (2.8%-2.9%). The main FAs …

Go to article

Seed Fatty Acid Compositions And Chemotaxonomy Of Wild Crambe (Brassicaceae) Taxa In Turkey, İlhan Subaşi Jan 2020

Seed Fatty Acid Compositions And Chemotaxonomy Of Wild Crambe (Brassicaceae) Taxa In Turkey, İlhan Subaşi

Turkish Journal of Agriculture and Forestry

Wild Crambe species have greater potential than Crambe hispanica in industry, medicine, as a vegetable, etc. A total of 53 germplasm accessions, belonging to 7 taxa, were collected from the natural flora of Turkey. The accessions consisted of C. orientalis var. orientalis (18 accessions), C. orientalis var. dasycarpa (1 accession), C. orientalis var. sulphurea (2 accessions), C.tataria var. aspera (3 accessions), C. tataria var. tataria (26 accessions), C. grandiflora (1 accession), C. orientalis var. sulphurea, and C. maritima (2 accessions). In this study, the seed fatty acid compositions and oil contents were determined, and the data were used for taxonomic …

Go to article

Cover And Contents Jan 2020

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.

Go to article

Decrease In 230th In The Amundsen Basin Since 2007: Far-Field Effect Of Increased Scavenging On The Shelf?, Ole Valk, Michiel M. Rutgers Van Der Loeff, Walter Geibert, Sandra Gdaniec, S. Bradley Moran, Kate Lepore, Robert Lawrence Edwards, Yanbin Lu, Viena Puigcorbé, Nuria Casacuberta, Ronja Paffrath, William Smethie, Matthieu Roy-Barman Jan 2020

Decrease In 230th In The Amundsen Basin Since 2007: Far-Field Effect Of Increased Scavenging On The Shelf?, Ole Valk, Michiel M. Rutgers Van Der Loeff, Walter Geibert, Sandra Gdaniec, S. Bradley Moran, Kate Lepore, Robert Lawrence Edwards, Yanbin Lu, Viena Puigcorbé, Nuria Casacuberta, Ronja Paffrath, William Smethie, Matthieu Roy-Barman

Research outputs 2014 to 2021

This study provides dissolved and particulate 230Th and 232Th results as well as particulate 234Th data collected during expeditions to the central Arctic Ocean (GEOTRACES, an international project to identify processes and quantify fluxes that control the distributions of trace elements; sections GN04 and GIPY11). Constructing a time series of dissolved 230Th from 1991 to 2015 enables the identification of processes that control the temporal development of 230Th distributions in the Amundsen Basin. After 2007, 230Th concentrations decreased significantly over the entire water column, particularly between 300 and 1500 m. This decrease is accompanied by a circulation change, evidenced by …

Go to article

Release: A Protocol For A Systematic Review Based, Individual Participant Data, Meta- And Network Meta-Analysis, Of Complex Speech-Language Therapy Interventions For Stroke-Related Aphasia, Marian C. Brady, Myzoon Ali, Kathryn Vandenberg, Linda J. Williams, Louise R. Williams, Masahiro Abo, Frank Becker, Audrey Bowen, Caitlin Brandenburg, Caterina Breitenstein, Stefanie Bruehl, David A. Copland, Tamara B. Cranfill, Marie Di Pietro-Bachmann, Pamela Enderby, Joanne Fillingham, Federica Lucia Galli, Marialuisa Gandolfi, Bertrand Glize, Erin Godecke, Neil Hawkins, Katerina Hilari, Jacqueline Hinckley, Simon Horton, David Howard, Petra Jaecks, Elizabeth Jefferies, Luis M. T. Jesus, Maria Kambanaros, Eun Kyoung Kang, Eman M. Khedr, Anthony Pak-Hin Kong, Tarja Kukkonen, Marina Laganaro, Matthew A. Lambon Ralph, Ann Charlotte Laska, Béatrice Leemann, Alexander P. Leff, Roxele R. Lima, Antje Lorenz, Brian Macwhinney, Rebecca Shisler Marshall, Flavia Mattioli, Ilknur Mavis, Marcus Meinzer, Reza Nilipour, Enrique Noé, Nam-Jong Paik, Rebecca Palmer, Ilias Papathanasiou, Brigida F. Patricio, Isabel Pavão Martins, Cathy Price, Tatjana Prizl Jakovac, Elizabeth Rochon, Miranda L. Rose, Charlotte Rosso, Ilona Rubi-Fessen, Marina B. Ruiter, Claerwen Snell, Benjamin Stahl, Jerzy P. Szaflarski, Shirley A. Thomas, Mieke Van De Sandt-Koenderman, Ineke Van Der Meulen, Evy Visch-Brink, Linda Worrall, Heather Harris Wright Jan 2020

Release: A Protocol For A Systematic Review Based, Individual Participant Data, Meta- And Network Meta-Analysis, Of Complex Speech-Language Therapy Interventions For Stroke-Related Aphasia, Marian C. Brady, Myzoon Ali, Kathryn Vandenberg, Linda J. Williams, Louise R. Williams, Masahiro Abo, Frank Becker, Audrey Bowen, Caitlin Brandenburg, Caterina Breitenstein, Stefanie Bruehl, David A. Copland, Tamara B. Cranfill, Marie Di Pietro-Bachmann, Pamela Enderby, Joanne Fillingham, Federica Lucia Galli, Marialuisa Gandolfi, Bertrand Glize, Erin Godecke, Neil Hawkins, Katerina Hilari, Jacqueline Hinckley, Simon Horton, David Howard, Petra Jaecks, Elizabeth Jefferies, Luis M. T. Jesus, Maria Kambanaros, Eun Kyoung Kang, Eman M. Khedr, Anthony Pak-Hin Kong, Tarja Kukkonen, Marina Laganaro, Matthew A. Lambon Ralph, Ann Charlotte Laska, Béatrice Leemann, Alexander P. Leff, Roxele R. Lima, Antje Lorenz, Brian Macwhinney, Rebecca Shisler Marshall, Flavia Mattioli, Ilknur Mavis, Marcus Meinzer, Reza Nilipour, Enrique Noé, Nam-Jong Paik, Rebecca Palmer, Ilias Papathanasiou, Brigida F. Patricio, Isabel Pavão Martins, Cathy Price, Tatjana Prizl Jakovac, Elizabeth Rochon, Miranda L. Rose, Charlotte Rosso, Ilona Rubi-Fessen, Marina B. Ruiter, Claerwen Snell, Benjamin Stahl, Jerzy P. Szaflarski, Shirley A. Thomas, Mieke Van De Sandt-Koenderman, Ineke Van Der Meulen, Evy Visch-Brink, Linda Worrall, Heather Harris Wright

Research outputs 2014 to 2021

Background: Speech and language therapy (SLT) benefits people with aphasia following stroke. Group level summary statistics from randomised controlled trials hinder exploration of highly complex SLT interventions and a clinically relevant heterogeneous population. Creating a database of individual participant data (IPD) for people with aphasia aims to allow exploration of individual and therapy-related predictors of recovery and prognosis. Aim: To explore the contribution that individual participant characteristics (including stroke and aphasia profiles) and SLT intervention components make to language recovery following stroke. Methods and procedures: We will identify eligible IPD datasets (including randomised controlled trials, non-randomised comparison studies, observational studies …

Go to article

Prkag2 Gene Expression Is Elevated And Its Protein Levels Are Associated With Increased Amyloid-Β Accumulation In The Alzheimer’S Disease Brain, Prashant Bharadwaj, Ralph Martins Jan 2020

Prkag2 Gene Expression Is Elevated And Its Protein Levels Are Associated With Increased Amyloid-Β Accumulation In The Alzheimer’S Disease Brain, Prashant Bharadwaj, Ralph Martins

Research outputs 2014 to 2021

Increased amyloid-β (Aβ) accumulation associated with abnormal autophagy-lysosomal activity and nutrient kinase dysregulation are common features in Alzheimer’s disease (AD) brain. Recent studies have identified PRKAG2 and TIPRL genes that control nutrient kinase regulated autophagy, and here we determined if their expression is altered in postmortem AD brains. Gene and protein expression of TIPRL were unchanged. However, gene expression of PRKAG2 was increased 3-fold and its protein levels positively correlated with Aβ accumulation in the AD brain. In summary, our findings suggest that increased PRKAG2 is an important contributing factor to Aβ accumulation in the AD brain.

Go to article

Supplemental Seeding And Seed Predation In A Newly Planted Tallgrass Prairie, Isabella Betzer Jan 2020

Supplemental Seeding And Seed Predation In A Newly Planted Tallgrass Prairie, Isabella Betzer

Honors Program Theses

The Iowa around today looks vastly different from the Iowa that was originally around. What once used to house vast tallgrass prairies is now home to about 0.1% of what was originally here (Smith 1998). However, conservationists have been working hard to restore even a fraction of what originally here despite high costs and low yields in restoration prairies. Recently experiments have been done on the use of sacrificial seed to potentially increase plant yield in restoration with successful results. This study was done to further research the effects of supplemental seeding on seed predation and if seedling emergence would …

Go to article

Genetic Variation Within A Broadly Distributed Chewing Louse Genus (Thomomydoecus), Clarissa Elizabeth Bruns Jan 2020

Genetic Variation Within A Broadly Distributed Chewing Louse Genus (Thomomydoecus), Clarissa Elizabeth Bruns

Honors Program Theses

No broad study has been conducted to examine the genetics of Thomomydoecus species and their patterns of geographic variation. Chewing lice and their parasite-host relationships with pocket gophers have been studied as a key example of cophylogeny (Demastes et al., 2012). Despite this, genetic data on interspecific and intraspecific variation in Thomomydoecus is unexplored, and prior studies consisted within the narrow frame of one complex or species and its relative host gopher. This project collected, and analyzed genetic data, then generated phylogenetic trees. Many of the existing relationships between Thomomydoecus species was confirmed, and there were a number of unexpected …

Go to article

Characterization Of An Aryl Piperazine/2-Hydroxypropyl-Β-Cyclodextrin Association, A Complex With Antidiabetic Potential, R. Devine, D.S.D. Martin, Gemma Kinsella, J.B.C. Findlay, J.C. Stephens Jan 2020

Characterization Of An Aryl Piperazine/2-Hydroxypropyl-Β-Cyclodextrin Association, A Complex With Antidiabetic Potential, R. Devine, D.S.D. Martin, Gemma Kinsella, J.B.C. Findlay, J.C. Stephens

Articles

This study explores the molecular association between 4-(thiophen-2-yl)-1-(4-(4-(trifluoromethyl)phenyl)piperazin-1-yl)butan-1-one (RTC1), an antidiabetic compound recently reported by our research group with challenging aqueous solubility, and 2-hydroxypropyl-β-cyclodextrin (HPBCD). The formation of a RTC1/HPBCD complex resulted in improved solubility. A phase-solubility diagram was used to determine the complex stability constant and stoichiometric ratio. 2D 1H NMR spectroscopy was utilized to study the molecular interaction between RTC1 and HPBCD in the complex. Differential scanning calorimetry and scanning electron microscopy was also employed to confirm complex formation. In vitro biological evaluation, using a glucose uptake assay, showed that the homogeneous RTC1/HPBCD complex solution showed the …

Go to article

Direct Plasma Deposition Of Collagen On 96-Well Polystyrene Plates For Cell Culture, Denis O'Suillivan, Liam O'Neill, Paula Bourke Jan 2020

Direct Plasma Deposition Of Collagen On 96-Well Polystyrene Plates For Cell Culture, Denis O'Suillivan, Liam O'Neill, Paula Bourke

Articles

A cold atmospheric plasma unit was used to deposit a biologic, in this case collagen, onto a surface. A collagen coating was applied to 96-well polystyrene plates at a range of powers to determine the effects of the plasma power on the coating structure and viability. Plasma characterization was carried out using voltage, current, and power measurements. Coating characterization was completed using gravimetric measurement, cell growth, water contact angle, as well as spectroscopic analysis and compared to commercial collagen-coated plates. Cell culture studies were also undertaken. The plasma coating matched the performance of the commercial plate but dramatically reduced production …

Go to article

Southern Adventist University Annual Report 2019-2020, Southern Adventist University Jan 2020

Southern Adventist University Annual Report 2019-2020, Southern Adventist University

Annual Reports

The Annual Report for Southern Adventist University for 2019 to 2020.

Go to article

Molecular Social Reality, The Cultural Helix & Sequencing Social Dna, Aidan Christopher Haughey Jan 2020

Molecular Social Reality, The Cultural Helix & Sequencing Social Dna, Aidan Christopher Haughey

University Honors Theses

This thesis provides a theory for measuring Social Reality, along with a framework and model which apply that theory to measure presented social reality in media. The framework and model utilize the double helical structure of DNA to create a baseline unit of social reality that can be extracted from media to help measure and categorize social realities. An experiment is provided utilizing a custom built machine learning algorithm to demonstrate the practical application of the theory, framework, and model.

Go to article

Seasonal Productivity Drives Aggregations Of Killer Whales And Other Cetaceans Over Submarine Canyons Of The Bremer Sub-Basin, South-Western Australia, Chandra Salgado Kent, Phil Bouchet, Rebecca Wellard, Iain Parnum, Leila Fouda, Christine Erbe Jan 2020

Seasonal Productivity Drives Aggregations Of Killer Whales And Other Cetaceans Over Submarine Canyons Of The Bremer Sub-Basin, South-Western Australia, Chandra Salgado Kent, Phil Bouchet, Rebecca Wellard, Iain Parnum, Leila Fouda, Christine Erbe

Research outputs 2014 to 2021

© 2020 Journal Compilation Cetaceans are iconic predators that serve as important indicators of marine ecosystem health. The Bremer Sub-Basin, south-western Australia, supports a diverse cetacean community including the largest documented aggregation of killer whales (Orcinus orca) in Australian waters. Knowledge of cetacean distributions is critical for managing the area's thriving ecotourism industry, yet is largely sporadic. Here we combined aerial with opportunistic ship-borne surveys during 2015-2017 to describe the occurrence of multiple cetacean species on a regional scale. We used generalised estimating equations to model variation in killer whale relative density as a function of both static and dynamic …

Go to article

When Less Is More: The Downside Of Customer Knowledge Sharing In New Product Development Teams, Yihui Tang, Datelina Marinova Jan 2020

When Less Is More: The Downside Of Customer Knowledge Sharing In New Product Development Teams, Yihui Tang, Datelina Marinova

Faculty Articles, Papers, and Other Scholarship

Despite the common belief that knowledge sharing in new product development (NPD) teams is beneficial, empirical findings are mixed. We adopt a microfoundations perspective and draw from the socio-cognitive theory to propose a model that theorizes a nonlinear effect of customer knowledge sharing behaviors on NPD performance. In particular, we identify the underlying mechanism through which shared common customer knowledge and perceived diagnostic value shape the nonlinear returns to customer knowledge sharing behaviors. In Study 1, data from the biotechnology industry provide support for the hypothesis that customer knowledge sharing behaviors in NPD teams have an inverted U-shaped relationship with …

Go to article

Role Of Geometric Shape In Chiral Optics, Philipp Gutsche, Xavier Garcia-Santiago, Philipp Immanuel Schneider, Kevin M. Mcpeak, Manuel Nieto-Vesperinas, Sven Burger Jan 2020

Role Of Geometric Shape In Chiral Optics, Philipp Gutsche, Xavier Garcia-Santiago, Philipp Immanuel Schneider, Kevin M. Mcpeak, Manuel Nieto-Vesperinas, Sven Burger

Faculty Publications

The distinction of chiral and mirror symmetric objects is straightforward from a geometrical point of view. Since the biological as well as the optical activity of molecules strongly depend on their handedness, chirality has recently attracted high interest in the field of nano-optics. Various aspects of associated phenomena including the influences of internal and external degrees of freedom on the optical response have been discussed. Here, we propose a constructive method to evaluate the possibility of observing any chiral response from an optical scatterer. Based on solely the T-matrix of one enantiomer, planes of minimal chiral response are located and …

Go to article

Red Hind Epinephelus Guttatus Vocal Repertoire Characterization, Behavior And Temporal Patterns, Carlos M. Zayas Santiago, Richard S. Appeldoorn, Michelle T. Schärerer-Umpierre, Juan J. Cruz-Motta Jan 2020

Red Hind Epinephelus Guttatus Vocal Repertoire Characterization, Behavior And Temporal Patterns, Carlos M. Zayas Santiago, Richard S. Appeldoorn, Michelle T. Schärerer-Umpierre, Juan J. Cruz-Motta

Gulf and Caribbean Research

Passive acoustic monitoring provides a method for studying grouper courtship associated sounds (CAS). For Red Hind (Epinephelus guttatus), this approach has documented spatio—temporal patterns in their spawning aggregations. This study described vocalizations produced by E. guttatus and their respective behavioral contexts in field and laboratory studies. Five sound types were identified, which included 4 calls recorded in captivity and one sound recorded in the wild, labeled as Chorus. Additionally, the Grunt call type recorded was presumed to be produced by a female. Call types consisted of variations and combinations of low frequency (50—450 Hz) pulses, grunts and tonal …

Go to article

First Prev Next Last