Life Sciences Commons^™

The Distribution And Life History Of Axymyia Furcata Mcatee (Diptera: Axymyiidae), A Wood Inhabiting, Semi-Aquatic Fly, Matthew W. Wihlm, Gregory W. Courtney

Gregory W. Courtney

Axymyia furcata McAtee (Diptera: Axymyiidae) is a xylophilic, semiaquatic fly from eastern North America. As part of a comprehensive study of the fly's distribution, life history, and phylogeography, we surveyed populations of A. furcata in the eastern United States and Canada. Collecting and rearing methods are described, and use of the niche modeling software, DIVA GIS, to locate regions with potentially suitable habitat is presented. Based on historical records and our recent survey, A. furcata is confirmed to occur from southern Ontario and Quebec, across the northern tier of states from Minnesota to Maine, and south along the Appalachian ...

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Effect Of Exercise Position On Percent Changes In Serratus Anterior Muscle Thickness, Joseph M. Day

Joseph Day

Objective: A reliable method for measuring SA thickness with ultrasound imaging has been reported, yet the ability to detect differences in levels of contractility has yet to be established. The purpose of this study was to determine if there are differences in the percent change in thickness of the SA during four different exercise positions performed by healthy individuals.

Design: Observational study

Setting: Laboratory

Participants: Twenty-eight healthy participants, mean age 26 (SD 4, 57% female, 100% right handed)

Methods: Volunteers were positioned in a standardized sitting posture and anatomical landmarks were marked for ultrasound probe positioning. Two resting and two ...

Nitrogen Fertilizer Suppresses Mineralization Of Soil Organic Matter In Maize Agroecosystems, Navreet K. Mahal, William R. Osterholz, Fernando E. Miguez, Hanna J. Poffenbarger, John E. Sawyer, Daniel C. Olk, Sotirios V. Archontoulis, Michael J. Castellano

John E. Sawyer

The possibility that N fertilizer increases soil organic matter (SOM) mineralization and, as a result, reduces SOM stocks has led to a great debate about the long-term sustainability of maize-based agroecosystems as well as the best method to estimate fertilizer N use efficiency (FNUE). Much of this debate is because synthetic N fertilizer can positively or negatively affect SOM mineralization via several direct and indirect pathways. Here, we test a series of hypotheses to determine the direction, magnitude, and mechanism of N fertilizer effect on SOM mineralization and discuss the implications for methods to estimate FNUE.Wemeasured the effect of ...

Nitrogen Fertilizer Suppresses Mineralization Of Soil Organic Matter In Maize Agroecosystems, Navreet K. Mahal, William R. Osterholz, Fernando E. Miguez, Hanna J. Poffenbarger, John E. Sawyer, Daniel C. Olk, Sotirios V. Archontoulis, Michael J. Castellano

Michael Castellano

The possibility that N fertilizer increases soil organic matter (SOM) mineralization and, as a result, reduces SOM stocks has led to a great debate about the long-term sustainability of maize-based agroecosystems as well as the best method to estimate fertilizer N use efficiency (FNUE). Much of this debate is because synthetic N fertilizer can positively or negatively affect SOM mineralization via several direct and indirect pathways. Here, we test a series of hypotheses to determine the direction, magnitude, and mechanism of N fertilizer effect on SOM mineralization and discuss the implications for methods to estimate FNUE.Wemeasured the effect of ...

Fabrication Of High Aspect Ratio Nanopillars Using Metal Assisted Chemical Etching, Rimjhim Chaudhary, Hiromichi Yamamoto

Protocols and Reports

This report describes fabrication of 100 to 200 nm diameter silicon nanopillars with ~140:1 aspect ratio using Metal Assisted Chemical Etching (MacEtch) process giving a high etch rate of ~930 nm/min, and also discusses an area dependence of the etch uniformity and rate, using 0.5 and 1 µm diameter, and 2 mm x 2 mm Au films. It is found that the etching using the Au film with the area of 0.2 µm² is uniform, but that with the area of more than 0.8 µm² is not, suggesting that the diffusion length of ...

Neuromuscular Adaptations Following Training And Protein Supplementation In A Group Of Trained Weightlifters, Christopher B. Taber, Kevin Carroll, Brad H. Deweese, Kimitake Sato, Charles Stuart, Mary Howell, Kenton Hall, Caleb D. Bazyler, Michael H. Stone

Michael H. Stone

The purpose of this study was to examine the effects of a recovery supplement compared with a placebo on muscle morphology in trained weightlifters. Vastus lateralis and muscle fiber cross sectional area of type I and type II fibers were compared between groups using a series of 2 × 2 (group × time) repeated measure ANOVAs. Both groups on average improved cross-sectional area of the vastus lateralis, type I and type II muscle fibers from pre-to-post but individual response varied within both groups. Greater magnitude of changes in type I and type II muscle fibers were observed for the placebo group but ...

Setting The Farm Animal Welfare Scene In North America, Anna K. Johnson

Anna K. Butters-Johnson

The objectives of this paper are to (1) set the scene on what animal welfare is, the schools that one can subscribe and how this could influence the direction that farm animal welfare could go (2) provide an overview on some of the critical farm animal welfare events that have occurred over the past 10 years in North America and (3) to review the legislative events; past and future that will affect farm animal welfare. Animal welfare is not a term that arose in science to express a scientific concept; rather it arose in western civilization through society to express ...

No Effect Of L-Arginine On Vascular Stiffness At Rest And During Reactive Hyperemia In Young Healthy Subjects, Andrew Wells, George Swanson, Thomas Fahey, Michael Smith

International Journal of Exercise Science

International Journal of Exercise Science 12(2): 556-566, 2019. The efficacy of L-arginine in augmenting blood flow via nitric oxide (NO) production is controversial, with several studies in the literature providing equivocal findings. The purpose of this study was to examine the effect of L-arginine supplementation on vascular stiffness at rest and during induced reactive hyperemia. Young healthy males (n = 15) were studied on two separate study days. On day one, a resting pulse wave velocity (PWV) was measured from the carotid and radial sites at rest and immediately following an induced reactive hyperemia (RH). On day two, subjects rested ...

Substrate Influences Turtle Nest Temperature, Incubation Period, And Offspring Sex Ratio In The Field, Timothy S. Mitchell, Fredric J. Janzen

Fredric Janzen

Temperature-dependent sex determination, where egg incubation temperature irreversibly determines offspring sex, is a common sex-determining mechanism in reptiles. Weather is the primary determinant of temperature in reptile nests, yet the effects of weather are mediated through the nest microhabitat selected by the mother (e.g., overstory canopy cover). One potentially important aspect of the nest microhabitat is the physical substrate used for nesting. However, the influence of substrate type on nest temperature and offspring sex determination has never been experimentally assessed in the field. We incubated eggs of Painted Turtles (Chrysemys picta) in three substrate types similar to those commonly ...

Genetic Dissection Of Haploid Male Fertility In Maize (Zea Mays L.), Jiwei Yang, Yanzhi Qu, Qiong Chen, Jihua Tang, Thomas Lubberstedt, Haochuan Li, Zonghua Liu

Thomas Lubberstedt

Haploid genome doubling is a key limiting step of haploid breeding in maize. Spontaneous restoration of haploid male fertility (HMF) provides a more promising method than the artificial doubling process. To reveal the genetic basis of HMF, haploids were obtained from the offspring of 285 F2:3 families, derived from the cross Zheng58 × K22. The F2:3 families were used as the female donor and Yu high inducer No. 1 (YHI‐1) as the male inducer line. The rates of HMF from each family line were evaluated at two field sites over two planting seasons. HMF displayed incomplete dominance. Transgressive ...

An Automated Bayesian Pipeline For Rapid Analysis Of Single-Molecule Binding Data, Carlas Smith, Karina Jouravleva, Maximiliaan Huisman, Samson M. Jolly, Phillip D. Zamore, David Grünwald

David Grünwald

Single-molecule binding assays enable the study of how molecular machines assemble and function. Current algorithms can identify and locate individual molecules, but require tedious manual validation of each spot. Moreover, no solution for high-throughput analysis of single-molecule binding data exists. Here, we describe an automated pipeline to analyze single-molecule data over a wide range of experimental conditions. In addition, our method enables state estimation on multivariate Gaussian signals. We validate our approach using simulated data, and benchmark the pipeline by measuring the binding properties of the well-studied, DNA-guided DNA endonuclease, TtAgo, an Argonaute protein from the Eubacterium Thermus thermophilus. We ...

Identification Of The Ps1 Thr147ile Variant In A Family With Very Early Onset Dementia And Expressive Aphasia, James Denvir, Shirley Neitch, Jun Fan, Richard M. Niles, Goran Boskovic, Bernard G. Schreurs, Donald A. Primerano, Daniel L. Alkon

Jun Fan

Background: Early onset dementias have variable clinical presentations and are often difficult to diagnose. We established a family pedigree that demonstrated consistent recurrence of very early onset dementia in successive generations.

Objective and Method: In order to refine the diagnosis in this family, we sequenced the exomes of two affected family members and relied on discrete filtering to identify disease genes and the corresponding causal variants.

Results: Among the 720 nonsynonymous single nucleotide polymorphisms (SNPs) shared by two affected members, we found a C to T transition that gives rise to a Thr147Ile missense substitution in the presenilin 1 (PS1 ...

Studies Of Plant Viroid Rna And Other Rna Species Of Unusual Function, Elizabeth Dickson

Elizabeth L. Dickson, MD

This dissertation concerns studies of plant viroid RNA and other RNA species of unusual function. By "RNA species of unusual function" we mean RNA species which do not function as transfer, ribosomal or messenger RNA. In the studies to be reported here we have laid the experimental and theoretical foundation for investigating the role of RNA in the control of gene expression.

The Effect Of Cold-Water Immersion On Running Mechanics, Lucas M. Dibenedetto, Kristyne Wiegand, Julia Freedman Silvernail

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 547-555, 2019. Cryotherapy is a common treatment used by athletes for rehabilitating acute injuries of a joint or muscle in order to accelerate recovery time and promptly return to play. Therefore, the potential effects of cryotherapy on performance and injury risk should be considered. The purpose of the current study was to investigate the effects of cold-water immersion on running mechanics. Fifteen healthy male and female participants (24.6 ± 5.74 years, 166.37 ± 7.67 cm, 71.72 ± 17.7 kg, 27.47 ± 7.55% body fat) were recruited for the study ...

Poster: Image Disguising For Privacy-Preserving Deep Learning, Sagar Sharma, Keke Chen

Keke Chen

No abstract provided.

Poster: Privacy-Preserving Boostingwith Random Linear Classifiers, Sagar Sharma, Keke Chen

Keke Chen

We propose SecureBoost, a privacy-preserving predictive modeling framework, that allows service providers (SPs) to build powerful boosting models over encrypted or randomly masked user submit- ted data. SecureBoost uses random linear classifiers (RLCs) as the base classifiers. A Cryptographic Service Provider (CSP) manages keys and assists the SP’s processing to reduce the complexity of the protocol constructions. The SP learns only the base models (i.e., RLCs) and the CSP learns only the weights of the base models and a limited leakage function. This separated parameter holding avoids any party from abusing the final model or conducting model-based attacks ...

Towards Practical Privacy-Preserving Analytics For Iot And Cloud Based Healthcare Systems, Sagar Sharma, Keke Chen, Amit P. Sheth

Keke Chen

Modern healthcare systems now rely on advanced computing methods and technologies, such as IoT devices and clouds, to collect and analyze personal health data at unprecedented scale and depth. Patients, doctors, healthcare providers, and researchers depend on analytical models derived from such data sources to remotely monitor patients, early-diagnose diseases, and find personalized treatments and medications. However, without appropriate privacy protection, conducting data analytics becomes a source of privacy nightmare. In this paper, we present the research challenges in developing practical privacy-preserving analytics in healthcare information systems. The study is based on kHealth - a personalized digital healthcare information system that ...

Augmented Personalized Health: Using Semantically Integrated Multimodal Data For Patient Empowered Health Management Strategies, Amit P. Sheth, Hong Y. Yip, Utkarshani Jaimini, Dipesh Kadariya, Vaikunth Sridharan, R. Venkataramanan, Tanvi Banerjee, Krishnaprasad Thirunarayan, Maninder Kalra

Krishnaprasad Thirunarayan

Healthcare as we know it is in the process of going through a massive change from:

1. Episodic to continuous

2. Disease-focused to wellness and quality of life focused

3. Clinic-centric to anywhere a patient is

4. Clinician controlled to patient empowered

5. Being driven by limited data to 360-degree, multimodal personal-public-population physical-cyber-social big data-driven URL: https://mhealth.md2k.org/2018-tech-showcase-home