Digital Commons Network^™

Paleoparasitology And Pathoecology In Russia: Investigations And Perspectives, Sergey Slepchenko, Karl Reinhard

Karl Reinhard Publications

Russia, both as the USSR and the Russian federation, provided a source of parasitological theory for decades. A key figure in Russian parasitology was Yevgeny Pavlovsky. He developed the nidus concept, the conceptual basis for the field of pathoecology. He also coined the term “paleoparasitology.” Pathoecology is a foundation concept in archaeological parasitology. Paleoparasitology, as defined by Pavlovsky, is an avenue for understanding of host parasite evolution over very long time periods. These contributions are not fully recognized internationally. Similarly, the long history of Russian paleontological and archaeological investigations are not fully known. Most recently, discoveries from archaeological sites show …

The Paleoepidemiology Of Enterobius Vermicularis (Nemata: Oxyuridae) Among The Loma San Gabriel At La Cueva De Los Muertos Chiquitos (600–800 Ce), Rio Zape Valley, Durango, Mexico, Johnica J. Morrow, Karl Reinhard

Karl Reinhard Publications

One hundred coprolites excavated from La Cueva de los Muertos Chiquitos (600–800 CE) in the Rio Zape Valley of present-day Durango, Mexico, were examined for the presence of helminth eggs utilizing standard archaeoparasitological techniques. Eggs of the human pinworm (Enterobius vermicularis) were recovered from 34 of the 100 coprolites examined. Eggs of parasites were photographed and measured before egg concentration values were calculated for each positive sample. Egg concentration values demonstrated an overdispersed pattern of distribution among the samples (66% uninfected, 25% less than 100 eggs/g, 8% between 100 and 500 eggs/g, and 1% more than 500 eggs/g). …

Taphonomic Considerations On Pinworm Prevalence In Three Ancestral Puebloan Latrines, Morgana Camacho, Alena M. Iñiguez, Karl Reinhard

Karl Reinhard Publications

For archaeological studies it is always necessary to consider taphonomic factors that could have influenced in ancient material preservation. Parasite eggs are usually highly degraded in ancient sites dated from all periods of time and taphonomic factors are mentioned to explain absence and low quantity of eggs found. In this study, we compare parasite egg recovery of three Great House latrines: two from Aztec Ruins (Rooms 219 and 225) and one from Salmon Ruins. We compared through statistical regression the recovery of eggs with the abundance of two classes of decomposers: mites and nematodes. These microorganisms have relation with nematode …

New Evidence Of Ancient Parasitism Among Late Archaic And Ancestral Puebloan Residents Of Chaco Canyon, Rachel E. Paseka, Carrie C. Heitman, Karl Reinhard

Karl Reinhard Publications

Archaeoparasitology provides a unique perspective on the health and habits of ancient cultures through the identification of parasite remains in archaeological materials. We identified eggs of the human whipworm, Trichuris trichiura, in coprolites recovered from Late Archaic (1926–1751 cal. BCE) and Ancestral Puebloan (1039–1163 cal. CE) sites in Chaco Canyon, New Mexico. Our findings represent the earliest record of T. trichiura in North America, the first record of the species from Chaco Canyon, and the first record of a macroparasite from a Late Archaic site (Atlatl Cave) on the Colorado Plateau. T. trichiura is common in the …

Autologous Bone Flap Resorption Years After Subtemporal Craniotomy, John Oladapo Obafunwa, Emily E. Hammerl, David Jaskierny, Livia A. Taylor, Lynette Russell, Karl Reinhard

Karl Reinhard Publications

In Spring of 2012, the partially undressed and skeletonized remains of a homeless adult Hispanic male was found in a fairly open wooded area in Nebraska. The remains showed evidence of extensive pathologies, which included healed traumas and surgeries. Examination of the decedent's medical records revealed that he had a history of kidney and liver problems, alcohol abuse, several traumas including a major head injury that necessitated a craniotomy, and radiological features of neurocysticercosis. The autologous bone flap, which was replaced after the craniotomy, had resorbed significantly away from the edges of the injury. Death was variously attributed to craniocerebral …

Science At Engineer Cantonment, Hugh H. Genoways, Brett C. Ratcliffe, Carl R. Falk, Thomas E. Labedz, Paul R. Picha, John R. Bozell

University of Nebraska State Museum: Mammalogy Papers

Conclusions

It is our contention that Thomas Say, Titian Peale, Edwin James, and their colleagues of the Stephen Long Expedition of 1819–1820 were heavily engaged in scientific research, which took the form of the first biodiversity inventory undertaken in the United States. This accomplishment has been overlooked both by biologists and historians, but it should rank among the most significant accomplishments of the expedition. The results of this inventory continue to inform us today about environmental, faunal, and floral changes along the Missouri River in an area that is known to be an ecotone between the deciduous forests of the …

New Tribal Placement And Review Of Parapucaya Prell And Pucaya Ohaus (Coleoptera, Scarabaeidae, Dynastinae), Aura Paucar-Cabrera, Matthew Robert Moore

Department of Entomology: Faculty Publications

The dynastine scarab genera Parapucaya Prell and Pucaya Ohaus have been historically classified in Pentodontini; however, that tribal classification is not supported under the current tribal circumscriptions. A discussion justifying the transfer of the genera Parapucaya and Pucaya from Pentodontini into Cyclocephalini is presented. This research is based on morphological observations (mandible shape and wing characters among others) and molecular data (genes 28S, COI, and 16S/ND1). A review of both genera is included, providing descriptions, diagnoses, distribution data, illustrations, and keys to species. A revised key to the world genera of Cyclocephalini is also included.

Los escarabajos de los géneros …

Gene Silencing In Tribolium Castaneum As A Tool For The Targeted Identification Of Candidate Rnai Targets In Crop Pests, Eileen Knorr, Elane Fishilevich, Linda Tenbusch, Meghan L. F. Frey, Murugesan Rangasamy, Andre Billion, Sarah E. Worden, Premchand Gandra, Kanika Arora, Wendy Lo, Greg Schulenberg, Pablo Valverde-Garcia, Andreas Vilcinskas, Kenneth E. Narva

Department of Entomology: Faculty Publications

RNAi shows potential as an agricultural technology for insect control, yet, a relatively low number of robust lethal RNAi targets have been demonstrated to control insects of agricultural interest. In the current study, a selection of lethal RNAi target genes from the iBeetle (Tribolium castaneum) screen were used to demonstrate efficacy of orthologous targets in the economically important coleopteran pests Diabrotica virgifera virgifera and Meligethes aeneus. Transcript orthologs of 50 selected genes were analyzed in D. v. virgifera diet-based RNAi bioassays; 21 of these RNAi targets showed mortality and 36 showed growth inhibition. Low dose injection- and …

Clathrin-Dependent Endocytosis Is Associated With Rnai Response In The Western Corn Rootworm, Diabrotica Virgifera Virgifera Leconte, Daniele H. Pinheiro, Ana M. Velez, Elane Fishilevich, Haichuan Wang, Newton P. Carneiro, Arnubio Valencia-Jimenez, Fernando H. Valicente, Kenneth E. Narva, Blair D. Siegfried

Department of Entomology: Faculty Publications

The cellular uptake of dsRNA after dietary exposure is critical for RNAi efficiency; however, the mechanism of its uptake in many insects remains to be understood. In this study, we evaluated the roles of the endocytic pathway genes Clathrin heavy chain (Chc), Clathrin adaptor protein AP50, ADP ribosylation factor-like 1 (Arf72A), Vacuolar H⁺ ATPase 16 kDa subunit (Vha16), and small GTPase Rab7 and putative sid-1-like genes (silA and silC) in RNAi response in western corn rootworm (WCR) using a two-stage dsRNA exposure bioassay. Silencing of Chc, Vha16, and AP50 led …

Rapid And Persistent Rnai Response In Western Corn Rootworm Adults, Ke Wu, Caitlin E. Taylor, Elane Fishilevich, Kenneth E. Narva, Blair Siegfried

Department of Entomology: Faculty Publications

RNA interference (RNAi) has proven effective for controlling pest insects such as western corn rootworm (WCR), Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae). Previous studies have shown that WCR adults display a robust RNAi response to orally-administered double-stranded RNA (dsRNA). However, it is unclear how quickly the response occurs after ingestion or how long RNAi effect lasts after WCR stop ingesting diet containing dsRNA. In the current study, WCR adult females were provided with diet treated with dsRNAs of Laccase 2 and Argonaute 2, two nonessential genes, for 8 days. RNAi response in WCR females commenced as early as 10 h …

Knockdown Of Rna Interference Pathway Genes In Western Corn Rootworm, Diabrotica Virgifera Virgifera, Identifies No Fitness Costs Associated With Argonaute 2 Or Dicer-2, Carolina Camargo, Ke Wu, Elane Fishilevich, Kenneth E. Narva, Blair Siegfried

Department of Entomology: Faculty Publications

The use of transgenic crops that induce silencing of essential genes using double-stranded RNA (dsRNA) through RNA interference (RNAi) in western corn rootworm, Diabrotica virgifera virgifera, is likely to be an important component of new technologies for the control of this important corn pest. Previous studies have demonstrated that the dsRNA response in D. v. virgifera depends on the presence of RNAi pathway genes including Dicer-2 and Argonaute 2, and that down-regulation of these genes limits the lethality of environmental dsRNA. A potential resistance mechanism to lethal dsRNA may involve loss of function of RNAi pathway genes. However, …

Ganganomala Saltini Ratcliffe, Jameson, And Zorn, A Newgenus And Species Ofanomalini (Coleoptera: Scarabaeidae: Rutelinae) From Bangladesh And Nepal, With A Revised Circumscription Of The Tribe, Brett C. Ratcliffe, Mary Liz Jameson, Carsten Zorn

Department of Entomology: Faculty Publications

Ganganomala saltini Ratcliffe, Jameson, and Zorn, a new genus and new species of Anomalini (subtribe Anomalina), is described fromBangladesh and Nepal. To place the new genus within the context of the tribe and subtribe, we provide a key to the four subtribes of world Anomalini, a list of comparative characters and character states for diagnosis and classification of Old World Anomalina, and comparative diagnostic characters for genera of Old World Anomalina. Circumscription, description, diagnosis, and illustrations for the new genus and species are provided. As a result of this research, the Anomalina includes 50 genera and subgenera, and advances our …

Description Of A New Species Of Stenocrates Burmeister (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini) From Peru, Brett C. Ratcliffe, Luis Figueroa

Department of Entomology: Faculty Publications

A new species of Stenocrates Burmeister, 1847 (Coleoptera: Scarabaeidae: Dynastinae: Cyclocephalini) from Peru is described: Stenocrates lissothorax Ratcliffe and Figueroa.Adescription, diagnosis, distribution, and illustrations of the new species are provided. This represents the 52nd species in the genus, and the 15th species known from Peru.

Parental Rnai Suppression Of Kruppel Gene To Control Hemipteran Pests, Blair D. Siegfried, Kenneth E. Narva, Kanika Arora, Sarah E. Worden, Chitvan Khajuria, Elane Fishilevich, Nicholas P. Storer, Meghan Frey, Ronda L. Hamm, Ana Velez

Department of Entomology: Faculty Publications

This disclosure concerns nucleic acid molecules and methods of use thereof for control of hemipteran pests through RNA interference - mediated inhibition of target coding and transcribed non - coding sequences in hemipteran pests. The disclosure also concerns methods for making transgenic plants that express nucleic acid molecules useful for the control of hemipteran pests, and the plant cells and plants obtained thereby.

Measuring And Understanding Socialemotional Behaviors In Preschoolers From Rural Pakistan, Jenna E. Finch, Aisha K. Yousafzai, Muneera Rasheed, Jelena Obradovic

Department of Psychology: Faculty Publications

The Strengths and Difficulties Questionnaire (SDQ) is widely-used to measure symptoms of common childhood behavioral problems that may lead to mental health difficulties. In a sample of 1,302 highly-disadvantaged mothers and their preschoolers, we evaluated the factor structure and reliability of the parent-report version of the SDQ in rural Pakistan. Confirmatory factor analyses suggested that the original structure of the SDQ was not appropriate for our data. We created conceptually- and empirically-coherent measures of children’s externalizing behavior problems and prosocial skills. Child and family correlates of social-emotional behaviors were similar to those found in other countries, supporting the validity of …

Addicted To Cellphones: Exploring The Psychometric Properties Between The Nomophobia Questionnaire And Obsessiveness In College Students, Seungyeon Lee, Minsung Kim, Jessica S. Mendoza, Ian M. Mcdonough

Department of Psychology: Faculty Publications

A potential new clinical disorder is arising due to the addiction to cellphones called nomophobiador feelings of discomfort or anxiety experienced by individuals when they are unable to use their mobile phones or utilize the conveniences these devices provide. However, before being able to officially classify this disorder as clinically relevant, more research needs to be conducted to determine how nomophobia relates to existing disorders. In a sample of 397 undergraduate students, the present study examined the relationship between the Nomophobia Questionnaire (NMP-Q) and the Obsessiveness Content Scale (OBS) of the Minnesota Multiphasic Personality Inventory-2 (the MMPI-2). Confirmatory factor analysis …

Alcohol Intoxication Moderates The Association Between A Polygenic Risk Score And Unprovoked Intimate Partner Aggression, Christa C. Christ, Laura E. Watkins, David Dilillo, Scott F. Stoltenberg

Department of Psychology: Faculty Publications

Despite evidence that genetic variation contributes to aggression, few studies have examined how genetic variation contributes to IPA specifically. In the current study, 69 couples from a Midwestern university completed self-report measures of IPA, childhood trauma exposure, and hazardous alcohol use, and were randomly assigned to consume either a placebo or alcohol beverage before participating in an analogue aggression task against their partner. Genetic risk (i.e., association with lower transcriptional efficiency) for aggression was measured with a polygenic risk score (PRS) created from four polymorphisms (HTR1B rs13212041, HTR2B rs6437000, 5-HTTLPR, and MAOA uVNTR). Among individuals with a low PRS, …

Predicting Sexual Revictimization In Childhood And Adolescence: A Longitudinal Examination Using Ecological Systems Theory, Samantha L. Pittenger, Jessica Pogue, David J. Hansen

Department of Psychology: Faculty Publications

A substantial proportion of sexual abuse victims report repeat sexual victimization within childhood or adolescence; however, there is limited understanding of factors contributing to revictimization for youth. Thus, the present study examined predictors of sexual revictimization prior to adulthood using ecological systems theory. Records of 1,915 youth presenting to a Child Advocacy Center (CAC) were reviewed to identify individual, familial, and community factors as well as initial abuse characteristics associated with risk for revictimization. Results showed that 11.1% of youth re-presented to the CAC for sexual revictimization. At the individual level, younger children, girls, ethnoracial minority youth, and those with …

Through The Eyes Of The Beholder: Simulated Eye-Movement Experience (“See”) Modulates Valence Bias In Response To Emotional Ambiguity, Maital Neta, Michael D. Dodd

Department of Psychology: Faculty Publications

Although some facial expressions provide clear information about people’s emotions and intentions (happy, angry), others (surprise) are ambiguous because they can signal both positive (e.g., surprise party) and negative outcomes (e.g., witnessing an accident). Without a clarifying context, surprise is interpreted as positive by some and negative by others, and this valence bias is stable across time. When compared to fearful expressions, which are consistently rated as negative, surprise and fear share similar morphological features (e.g., widened eyes) primarily in the upper part of the face. Recently, we demonstrated that the valence bias was associated with a specific pattern of …

Logics Of Freedom: Debating Religious Freedom Laws And Gay And Lesbian Rights, Emily Kazyak, Kelsy Burke, Mathew Stange

Department of Sociology: Faculty Publications

In the wake of marriage equality for same-sex couples, many states have introduced and passed laws that provide religious exemptions for certain services and benefits for LGBTQ (lesbian, gay, bisexual, transgender, and queer) persons. The authors use data from a general population survey of Nebraskans as a mixed-methods case study to examine public opinion of religious freedom laws. Drawing on data from both closed-ended (n = 1,117) and openended (n = 838) questions, the authors show that opposition to religious freedom laws is quite high, as 64 percent of respondents report that they oppose laws that would allow business owners …

A Demands And Resources Approach To Understanding Faculty Turnover Intentions Due To Work–Family Balance, Megumi Watanabe, Christina Falci

Department of Sociology: Faculty Publications

Using data collected on tenure-line faculty at a research-intensive Midwestern university, this study explored predictors of faculty job turnover intentions due to a desire for a better work–family balance. We adopted Voydanoff’s theoretical framework and included demands and resources both within and spanning across the work and family domains. Results showed that work-related demands and resources were much stronger predictors of work–family turnover intentions than family-related demands or resources. Specifically, work-to-family negative spillover was positively associated with work–family turnover intentions, and two work-related resources (job satisfaction and supportive work–family culture) were negatively associated with work–family turnover intentions. On the other …

Does Insulin Therapy Matter? Determinants Of Diabetes Care Outcomes, Jennifer A. Andersen, Larry Gibbs

Department of Sociology: Faculty Publications

Objective: To evaluate adherence to care standards for people with diabetes (PWDs) on insulin therapy versus PWDs who are not on insulin therapy, controlling for social determinants.

Research design and methods: Utilizing the United States 2015 Behavioral Risk Factor Surveillance System Survey, this study used logistic regression analyses to estimate differences in self-care behaviors, healthcare provider quality of care, and diabetic complications for individuals on insulin therapy and individuals not on insulin therapy.

Results: PWDs on insulin therapy are more likely to adhere to self-care measures (self-glucose checks [OR: 7.57], self-foot checks [OR: 1.27], diabetes class participation [OR: 1.96]), adherence …

Book Review: Savin-Williams, Ritch C. 2017. Mostly Straight: Sexual Fluidity Among Men, Trenton M. Haltom

Department of Sociology: Faculty Publications

In his book Mostly Straight: Sexual Fluidity among Men, Savin-Williams offers an analysis of new shifts in millennial men’s not-so-heterosexual sexual identities. Some “mostly straight” men admit romantic crushes on close male friends, while others attest to fantasizing about sex with other men. All the while, they maintain that their primary sexual and romantic attraction is to women. Bisexuality is not on the table for these men; they are straight—well, mostly. ...

An easy-to-read work, Mostly Straight consists of a number of substantive chapters broken up by individual interviews. The intended audience for Mostly Straight varies from the academically inclined …

Examining The Effects Of A Service-Trained Facility Dog On Stress In Children Undergoing Forensic Interview For Allegations Of Child Sexual Abuse, Cheryl A. Krause-Parello, Michele Thames, Colleen M. Ray, John Kolassa

Department of Sociology: Faculty Publications

Disclosure of child sexual abuse can be a stressful experience for the child. Gaining a better understanding of how best to serve the child, while preserving the quality of their disclosure, is an ever-evolving process. The data to answer this question come from 51 children aged 4–16 (M = 9.1, SD = 3.5), who were referred to a child advocacy center in Virginia for a forensic interview (FI) following allegations of sexual abuse. A repeated measures design was conducted to examine how the presence of a service-trained facility dog (e.g. animal-assisted intervention (AAI) may serve as a mode of lowering …

Relationship Satisfaction Among Infertile Couples: Implications Of Gender And Self-Identification, Arthur L. Greil, Kathleen S. Slauson-Blevins, Julia Mcquillan, Michele H. Lowry, Andrea R. Burch, Karina M. Shreffler

Department of Sociology: Faculty Publications

We use path analysis to analyze heterosexual couples from the U.S. National Survey of Fertility Barriers, a probability-based sample of women and their male partners. We restrict the sample to couples in which the women are infertile. We estimate a path model of each partner’s relationship satisfaction on indicators of self-identifying as having a fertility problem or not at the individual and couple levels. We find a gender effect: for women, but not men, relationship satisfaction was significantly higher when neither partner self-identified as having a fertility problem. Women’s relationship satisfaction exerted a strong influence on their partners’ relationship satisfaction, …

Fertility And Infertility: Toward An Integrative Research Agenda, Katherine M. Johnson, Arthur L. Greil, Karina M. Shreffler, Julia Mcquillan

Department of Sociology: Faculty Publications

In this article, we show that social science research on fertility and infertility consists of largely separate research traditions, despite shared interest in pregnancies and births (or lack thereof). We describe four ways these two traditions differ: (1) publication trajectories and outlets, (2) fields of study and major theoretical frameworks, (3) degree of attention to the other topic, and (4) language and definitions used. We then discuss why future integration of these bodies of research would be beneficial, outline potential steps toward rapprochement, and provide common areas of dialogue that could facilitate and enrich these bodies of research. We offer …

“Just Because A Doctor Says Something, Doesn’T Mean That [It] Will Happen”: Self-Perception As Having A Fertility Problem Among Infertility Patients, Ophra Leyser-Whalen, Arthur L. Greil, Julia Mcquillan, Katherine M. Johnson

Department of Sociology: Faculty Publications

Only some individuals who have the medically defined condition ‘infertility’ adopt a self-definition as having a fertility problem, which has implications for social and behavioral responses, yet there is no clear consensus on why some people and not others adopt a medical label. We use interview data from 28 women and men who sought medical infertility treatment to understand variations in self-identification. Results highlight the importance of identity disruption for understanding the dialectical relationship between medical contact and self-identification, as well as how diagnosis acts both as a category and a process. Simultaneously integrating new medical knowledge from testing and …

Prevalence And Trends In Morbidity And Disability Among Older Mexican Americans In The Southwestern United States, 1993–2013, Marc A. Garcia, Adriana M. Reyes

Department of Sociology: Faculty Publications

This study examines the prevalence of morbidity and disability among older Mexican Americans using 5-year age groups. Twenty-year panel data from the Hispanic Established Populations for the Epidemiological Study of the Elderly are used to make detailed comparisons by nativity and gender. Results show that prevalence rates for most chronic conditions for both males and females do not vary by nativity. For disabilities, nativity is a significant predictor of increased instrumental activity of daily living disability for foreign-born females and reduced activity of daily living disability for U.S.-born males. Additionally, results show significant interactions between nativity and age cohorts, with …

A Comprehensive Analysis Of Morbidity Life Expectancies Among Older Hispanic Subgroups In The United States: Variation By Nativity And Country Of Origin, Marc A. Garcia, Catherine Garcia, Chi-Tsun Chiu, Mukaila Raji, Kyriakos S. Markides

Department of Sociology: Faculty Publications

Background and Objectives: Although a clear advantage in mortality has been documented among older Hispanic subgroups, particularly the foreign-born, research examining health selectivity in morbidity life expectancies among older Hispanics are scarce. Differences in sociocultural characteristics among Hispanic subgroups may influence racial/ethnic and nativity disparities in morbidity. Research examining the heterogeneity among older Hispanic subgroups may further our understanding of why some Hispanics are able to preserve good health in old age, while others experience a health disadvantage. Thus, the primary goal of this analysis is to examine racial/ethnic, nativity, and country of origin differences in morbidity life expectancies among …

The Role Of Education In The Relationship Between Age Of Migration To The United States And Risk Of Cognitive Impairment Among Older Mexican Americans, Brian Downer, Marc A. Garcia, Joseph Saenz, Kyriakos S. Markides, Rebeca Wong

Department of Sociology: Faculty Publications

Prior research indicates age of migration is associated with cognitive health outcomes among older Mexican Americans; however, factors that explain this relationship are unclear. This study used eight waves from the Hispanic Established Populations for the Epidemiologic Study of the Elderly to examine the role of education in the risk for cognitive impairment (CI) by nativity, age of migration, and gender. Foreign-born women had a higher risk for CI than U.S.-born women, regardless of age of migration. After adjusting for education, this risk remained significant only for late-life migrant women (risk ratio [RR] = 1.28). Foreign-born men who migrated at …