Life Sciences Commons^™

Growth, Lipid Production And Biodiesel Potential Of Chromulina Freiburgensis Dofl., An Acidophilic Chrysophyte Isolated From Berkeley Pit Lake, June E. Mohler Mitman

Graduate Theses & Non-Theses

Microalgae remain a promising, but underdeveloped source of lipids for sustainable biodiesel. Some of the obstacles to cost-effective commercial-scale production have been culture contamination and expensive harvest methods. A chrysophyte isolated from Berkeley Pit Lake and identified as Chromulina freiburgensis, was found to grow rapidly in a pH 2.5 liquid medium and to amass numerous intracellular lipid bodies. This research addresses the scarcity of published knowledge on the topic of chrysophyte species as potential lipid sources for biodiesel. It investigates how growth phase, culture conditions, and harvest timing influence the quantity and composition of lipids produced by this alga ...

Effect Of External Energy On The Atomic, Crystalline, And Powder Characteristics Of Antimony And Bismuth Powders, Mahendra Kumar Trivedi

Mahendra Kumar Trivedi

Next to atoms and molecules the powders are the smallest state of matter available in high purities and large quantities. The effect of any external energy on the shape, morphology and structure can thus be studied with relative ease. The present investigation deals with the effect of a non-contact external energy on the powders of antimony and bismuth. The characteristics of powders treated by external energy are compared with the as received powders (control). The average particle sizes, d50 and d99, the sizes below which 99% of the particles are present showed significant increase and decrease indicating that the energy ...

Mixing It Up: The Impact Of Episodic Introgression On The Evolution Of High-Latitude Mesocarnivores, Jocelyn P. Colella

Biology ETDs

At high latitudes, climatic oscillations have triggered repeated episodes of organismal divergence by geographically isolating populations. For terrestrial species, extended isolation in glacial refugia – ice-free regions that enable terrestrial species persistence through glacial maxima – is hypothesized to stimulate allopatric divergence. Alternatively, upon glacial recession, divergent populations expanded from independent glacial refugia and often contacted other diverging populations. In the absence of reproductive isolating mechanisms, this biogeographic process may trigger hybridization and ultimately, gene flow between divergent taxa. My dissertation research aims to understand how these episodic periods of isolation and contact have impacted the evolution of high latitude species. To ...

The Neurobiology Of The Healing Arts: Expressive Arts Therapy As An Effective Treatment For Adults Diagnosed With Complex Ptsd Due To Complex Trauma In Childhood: A Literature Review, Cheryl Ratliff

Expressive Therapies Capstone Theses

Empirically based therapies for posttraumatic stress disorder (PTSD) have been found to be less effective in treating more severe trauma presentations such as complex PTSD (CPTSD). Neurobiological investigation provides a framework for examining the physical and psychological effects of trauma on brain and nerve structures and provides insight into how to effectively treat CPTSD. This literature review examined symptomology of CPTSD resulting from complex trauma in childhood, neurobiological effects of trauma and their implications for treatment, and the efficacy of the current treatment models, primarily those of eye movement desensitization and reprocessing (EMDR), narrative exposure therapy (NET), and somatic psychotherapies ...

Restoring Polyhyrdoxybutyrate (Phb) Depolymerase Expression In A Bald Mutant Of Streptomyces Sp. Sfb5a, Youmna Moawad

Honors Projects

Polyhydroxybutyrate (PHB) is a biodegradable, plastic-like polymer produced by some bacteria and degraded by others. The filamentous bacterium Streptomyces sp. SFB5A degrades PHB for growth using an extracellular PHB depolymerase, encoded by the phaZ gene. A morphological mutant of this bacterium, bld4, cannot form aerial filaments and cannot produce PHB depolymerase, despite having the phaZ gene. The inability to synthesize PHB depolymerase may be due to a mutation in a gene encoding one of its transcriptional regulators. A gene (lrp) coding for a potential transcriptional regulator is located 2,700 base pairs upstream from phaZ. Our goal was to clone ...

Rare And Low Frequency Genomic Variants Impacting Neuronal Functions Modify The Dup7q11.23 Phenotype, Farah Qaiser, Yue Yin, Carolyn B. Mervis, Colleen A. Morris, Bonita P. Klein-Tasman, Elaine Tam, Lucy R. Osborne, Ryan K.C. Yuen

School of Medicine Faculty Publications

© 2021, The Author(s). Background: 7q11.23 duplication (Dup7) is one of the most frequent recurrent copy number variants (CNVs) in individuals with autism spectrum disorder (ASD), but based on gold-standard assessments, only 19% of Dup7 carriers have ASD, suggesting that additional genetic factors are necessary to manifest the ASD phenotype. To assess the contribution of additional genetic variants to the Dup7 phenotype, we conducted whole-genome sequencing analysis of 20 Dup7 carriers: nine with ASD (Dup7-ASD) and 11 without ASD (Dup7-non-ASD). Results: We identified three rare variants of potential clinical relevance for ASD: a 1q21.1 microdeletion (Dup7-non-ASD) and two ...

Environmental Rnai Pathways In The Two-Spotted Spider Mite, Mosharrof Mondal, Jacob Peter, Obrie Scarbrough, Alex Flynt

Faculty Publications

© 2020, The Author(s).

Background:RNA interference (RNAi) regulates gene expression in most multicellular organisms through binding of small RNA effectors to target transcripts. Exploiting this process is a popular strategy for genetic manipulation and has applications that includes arthropod pest control. RNAi technologies are dependent on delivery method with the most convenient likely being feeding, which is effective in some animals while others are insensitive. The two-spotted spider mite, Tetranychus urticae, is prime candidate for developing RNAi approaches due to frequent occurrence of conventional pesticide resistance. Using a sequencing-based approach, the fate of ingested RNAs was explored to identify ...

Understanding Students’ Global Interdependence In Science Instruction, Walter S. Smith

Journal of Global Education and Research

Multiple American educational organizations such as the National Education Association, Association for Supervision and Curriculum Development, and the Council of Chief State School Officers have advocated for globalizing the K-12 curriculum. The National Science Teaching Association (NSTA) in a position statement on international education and the Next Generation Science Standards have produced goals and standards for internationalizing the science curriculum by addressing topics such as climate change, environment, and disease that cross borders. In contrast to those pronouncements on the curriculum, this article views global science education through an instructional lens that focuses on a students’ global interdependence in science ...

Predicting The Spatiotemporal Exposure Of Aquatic Species To Intrusions Of Fire Retardant In Streams With Limited Data, Chris R. Rehmann, P. Ryan Jackson, Holly J. Puglis

Civil, Construction and Environmental Engineering Publications

Because fire retardant can enter streams and harm aquatic species including endangered fish, agencies such as the U.S. Forest Service (USFS) must estimate the downstream extent of toxic effects every time fire retardant enters streams (denoted as an “intrusion”). A challenge in estimating the length of stream affected by the intrusion and the exposure time of species in the affected reach is the lack of data typically available on the stream's geometry and flow characteristics. Previously, the USFS estimated the affected reach length assuming instantaneous mixing of the retardant over the reach; however, this approach neglects key river ...

Human Kit+ Myeloid Cells Facilitate Visceral Metastasis By Melanoma., Chun I. Yu, Jan Martinek, Te-Chia Wu, Kyung In Kim, Joshy George, Elaheh Ahmadzadeh, Richard S. Maser, Florentina Marches, Patrick Metang, Pierre Authie, Vanessa K P Oliveira, Victor G Wang, Jeffrey Chuang, Paul Robson, Jacques Banchereau, Karolina Palucka

Faculty Research 2021

Metastasis of melanoma significantly worsens prognosis; thus, therapeutic interventions that prevent metastasis could improve patient outcomes. Here, we show using humanized mice that colonization of distant visceral organs with melanoma is dependent upon a human CD33+CD11b+CD117+ progenitor cell subset comprising <4% of the human CD45+ leukocytes. Metastatic tumor-infiltrating CD33+ cells from patients and humanized (h)NSG-SGM3 mice showed converging transcriptional profiles. Single-cell RNA-seq analysis identified a gene signature of a KIT/CD117-expressing CD33+ subset that correlated with decreased overall survival in a TCGA melanoma cohort. Thus, human CD33+CD11b+CD117+ myeloid cells represent a novel candidate biomarker as well as a therapeutic target for metastatic melanoma.

Meeting Minutes, June 4th, 2021, National Smokejumper Association Board Of Directors

National Smokejumper Association Meeting Minutes

Agenda: Call to order, review and approval of Agenda; Consent Agenda; Information Items; Investment Report; Budget; Request for NSA Endorsement of USFS Covid 19 Preparedness Letter from National Wildfire Institute to Secretary Perdue; Trails Report; Scholarship Report; Keep the Flame Legacy Jump List; Q & A on Written Report; Identifying and Recruiting New Board Members; Information and Odds and Ends; In Attendance via Zoom;

Waste To Phosphorus: A Transdisciplinary Solution To P Recovery From Wastewater Based On The Triz Approach, Anna Jama-Rodzeńska, Andrzej Białowiec, Jacek A. Koziel, Józef Sowiński

Agricultural and Biosystems Engineering Publications

Phosphorus (P) is a limited yet essential resource. P cannot be replaced, but it can be recovered from waste. We proposed the TRIZ approach (Teoria reszenija izobretatielskich zadacz - Rus., Theory of Inventive Problem Solving - Eng.) to identify a feasible solution. We aimed at minimizing the environmental impact and, by eliminating contradictions, proposed viable technical solutions. P recovery can be more sustainable based on circular economy and 4Rs (reduction, recovery, reuse, and recycling). The TRIZ approach identified sewage sludge (SS) as waste with a large potential for P recovery (up to 90%). Successful selection and application of SS management and P ...

Nipped In The Bud: Covid-19 Reveals The Malleability Of Stem Student Self-Efficacy, Eileen K. Camfield, Natasha R. Schiller, Kirkwood M. Land

College of the Pacific Faculty Articles

When a global pandemic hits during a longitudinal study of biology student success, researchers can unearth rich information about student resilience. By sharing case studies from two demographically different midsized 4-year institutions, this article illustrates the aspects of student self-efficacy beliefs that were undercut by the shift to emergency remote instruction (ERI) in introductory biology courses in Spring 2020: agency and belonging. By assessing student predictions of exam performance and analyzing themes from 276 student narrative surveys, we highlight the power of a careful balance between cognitive and social interventions to help students recover. Students in this study showed a ...

The Ripple Effect: ‘Training The Trainer’ On The Impact Of Body Image Through A Dance/Movement Therapy Technique, Marina Gearhart

Expressive Therapies Capstone Theses

This thesis describes the capstone project which was a psychoeducation and experiential workshop for fitness trainers. The workshop investigated the impact trainers’ work may have on the body image of their clients through a dance/movement therapy (DMT) technique. The aim was to enhance the trainers’ sensitivity around body image issues of their clients and to create a space for vulnerable movement conversation that may in turn lead to better mental health advocacy for their clients within the scope of ethical practice. The participants of the workshop were six white female identifying trainers ranging from 24 to 35 years of ...

Exploring Tactile Art-Making With Deafblind Students And Their Families: An Opportunity For Creative Play, Alice Rodgers

Expressive Therapies Capstone Theses

The impact of a deafblind diagnosis on an individual’s mental health and the well-being of the family involved can be profound. However, current research and available literature for the mental health treatment and therapy practices of deafblind persons and their families is limited (Kyzar et al., 2016; “WFDB Global Report 2018,” n.d.). This thesis used the Leeds Family Psychology and Therapy Service principles (Leeds FPTS) and the Expressive Therapies Continuum with established deafblind teaching strategies to facilitate an original arts-based community project entitled: “Things We Like.” This project provided an opportunity for deafblind students (ages three to 22 ...

Exploring The Usefulness Of Mindfulness Practices Through Zoom Meetings In Reducing Anxiety And/Or Stress Of Adults With Learning And Developmental Disabilities During The Covid-19 Pandemic, Thatiane Abra

Expressive Therapies Capstone Theses

This thesis explored which mindfulness meditations or mindfulness practices could be beneficial in the online sessions, the extent to which adults with learning and developmental disabilities could learn the practices remotely, and how stress and anxiety disorders could be reduced through online mindfulness interventions. Furthermore, it was also necessary to address the online sessions as the only mental health treatment possibility during the Coronavirus pandemic for the clients observed and the benefits and limitations of these interventions. Additionally, the importance of structure and routine for this population, the multi-modal structure of the interventions, and how attunement plays an important role ...

Effects Of Between Row And Within Row Spacing On Alfalfa Seed Quality, Tiejun Zhang, Jianguo Han, Xianguo Wang, Yunwen Wang, Peisheng Mao

International Grassland Congress Proceedings

No abstract provided.

Effect Of Saline‐Alkali Stress On Seed Germination Involving Grain Amaranth, Deying Zhang, Yuxia Zhang

International Grassland Congress Proceedings

No abstract provided.

The Study On The Period Of Stigma Keeping Vitality And Optimum Pollinated Time Of Madicago Varia Martin. Cv. 'Xinmu. No. 1', Aiqin Zhang, Dunyan Tan, Jinzhong Zhu

International Grassland Congress Proceedings

No abstract provided.

Effect Of Temperature And Moisture On Physical Dormancy Release In Two Populations Of Sophora Alopecuroides, L. Yang, Yanrong Wang, X. W. Hu

International Grassland Congress Proceedings

No abstract provided.

Mechanistic Studies Of Drug-Like Inhibitors Of P-Glycoprotein Using Atpase Assays, Electron Spin Resonance Spectroscopy And Cancer Cell Models, Gang Chen

Biological Sciences Theses and Dissertations

Multidrug resistance (MDR) in cancer and other diseases is frequently associated with transmembrane efflux proteins, one of which is P-glycoprotein (P-gp). Over-expression of P-gp in cancer cells increases the efflux of therapeutic drugs rendering them ineffective. In order to re-sensitize multidrug resistant cancers to chemotherapy, we have found potential inhibitors of P-gp by in silico screening methods, and several of these inhibitors were shown to successfully overcome MDR in the drug resistant DU145TXR prostate cancer cell line. The best of the identified hit compounds were further investigated with regard to the mechanism of inhibition using ATPase activity assays and electron ...

Proceedings From The Second Annual Society For Neurosports Conference, William R. Kochen

NeuroSports

Proceedings from the Second Annual Society for NeuroSports Conference

Effect Of Nitrogen And Foliar Spray Of Bio‐Regulators On Seed Production Of Lasiurus Sindicus, Nagendra Singh Yadava

International Grassland Congress Proceedings

No abstract provided.

Effect Of Ion‐Beam Implantation On Seed Vigor Of Roegneria Kamoji Ohwi, Jihong Xie, Zuogong Wu, Yunzhang Liang, Zhu Xu, Linhang Li, Tingjie Hao, Yubao Ma

International Grassland Congress Proceedings

No abstract provided.

Effects Of Phosphorus And Potassium On Alfalfa Seed Quality, Xianguo Wang, Jianguo Han, Zhiguang Geng, Peisheng Mao, Yunwen Wang

International Grassland Congress Proceedings

No abstract provided.

Different Seed Dormancy Levels Imposed By Tissues Covering The Caryopsis In Strains Of Zoysiagrass (Zoysia Japonica Steud.), Yunwen Wang, Jianguo Han, Manli Li, Jiefeng Sun, Yong He

International Grassland Congress Proceedings

No abstract provided.

Analysis Of Physiological Characters And Deterioration Mechanism Of Seed In Ceratoides L., Xuemin Wang, Hongwen Gao, Zan Wang, Jin Yi

International Grassland Congress Proceedings

No abstract provided.

Alfalfa Organic Seed Production In Central Italy, Renzo Torricelli, Mario Falcinelli

International Grassland Congress Proceedings

No abstract provided.

Germination Characteristics Of Haloxylon Bunge Seeds, L. R. Tong, J. G. Han

International Grassland Congress Proceedings

No abstract provided.

Studies On Seedling Characteristic And Establishing Technique Of Ceratoides Arborescens, Hailian Sun, Yongzhi Liu, Haijun Ding, Chunli Bai, Haixian Li

International Grassland Congress Proceedings

No abstract provided.