34 Works

Source data for \"Writing with librarians: Reporting back on turning your poster or presentation into an article.\"

Kristin Lee & Thea Atwood

The role of Religious Sites and Structures in Rural Landscapes and Communities

Elizabeth Brabec
This panel explores the heritage of religious sites in rural landscapes and communities of central and eastern Europe, and Morocco. Religious sites and their community networks within the rural landscape are often overlooked as a collective resource. However, they provide overlapping levels of order in the landscape that derive from various social classes and religious traditions. Often these layers of class and spiritual tradition are invisible to those outside of the class/social/cultural group that created...

Data from: Pre-infection effects of nectar secondary compounds on a bumble bee gut pathogen

Kristen Michaud, Rebecca Irwin, Nicholas Barber & Lynn Adler
Bumble bee pollinators can be exposed to pathogens when foraging on flowers previously visited by infected individuals. Infectious cells may be deposited in floral nectar, providing a site for pathogens to interact with nectar secondary compounds prior to infecting bees. Some nectar secondary compounds can reduce pathogen counts in infected bumble bees, but we know less about how exposure to these compounds directly affects pathogens prior to being ingested by their host. We exposed the...

Quantum supremacy using a programmable superconducting processor

John M. Martinis, Sergio Boixo, Hartmut Neven, Frank Arute, Kunal Arya, Ryan Babbush, Dave Bacon, Joseph C. Bardin, Rami Barends, Rupak Biswas, Fernando G. S. L. Brandao, David A. Buell, Brian Burkett, Yu Chen, Zijun Chen, Ben Chiaro, Roberto Collins, William Courtney, Andrew Dunsworth, Edward Farhi, Brooks Foxen, Austin Fowler, Craig Gidney, Marissa Giustina, Rob Graff … & Adam Zalcman
The tantalizing promise of quantum computers is that certain computational tasks might be executed exponentially faster on a quantum processor than on a classical processor. A fundamental challenge is to build a high-fidelity processor capable of running quantum algorithms in an exponentially large computational space. Here, we report using a processor with programmable superconducting qubits to create quantum states on 53 qubits, corresponding to a computational state-space of dimension 2^53 ∼ 10^16. Measurements from repeated...

Data from: Bee pathogen transmission dynamics: deposition, persistence and acquisition on flowers

Laura L. Figueroa, Malcolm Blinder, Cali Grincavitch, Angus Jelinek, Emilia K. Mann, Liam A. Merva, Lucy E. Metz, Amy Y. Zhao, Rebecca E. Irwin, Scott H. McArt & Lynn S. Adler
Infectious diseases are a primary driver of bee decline worldwide, but limited understanding of how pathogens are transmitted hampers effective management. Flowers have been implicated as hubs of bee disease transmission, but we know little about how interspecific floral variation affects transmission dynamics. Using bumble bees (Bombus impatiens), a trypanosomatid pathogen (Crithidia bombi), and three plant species varying in floral morphology, we assessed how host infection and plant species affect pathogen deposition on flowers, and...

Data from: Examining carry‐over effects of winter habitat on breeding phenology and reproductive success in prairie warblers (Setophaga discolor)

Michael E. Akresh, David I. King & Peter P. Marra
Winter habitat quality can influence breeding phenology and reproductive success of migratory birds. Using stable isotope ratios of carbon (δ13C) from bird claws and red blood cells collected in Massachusetts, USA, we assessed if winter habitat occupancy carried over to affect prairie warbler (Setophaga discolor) breeding arrival dates, body condition upon arrival, pairing success, first-egg dates, and reproductive success. In two of three years (in 2011 and 2012, but not in 2013), after-second-year (ASY) males...

Hotel Industry Performance in 2018-2019 and the JHFM Index

Atul Sheel

Neural Generative Models and Representation Learning for Information Retrieval

Qingyao Ai
Information Retrieval (IR) concerns about the structure, analysis, organization, storage, and retrieval of information. Among different retrieval models proposed in the past decades, generative retrieval models, especially those under the statistical probabilistic framework, are one of the most popular techniques that have been widely applied to Information Retrieval problems. While they are famous for their well-grounded theory and good empirical performance in text retrieval, their applications in IR are often limited by their complexity and...

Multi-Level Barriers to Art Adherence Among HIV-Infected Women in Rural Eswatini: A Mixed Methods Approach

Nozipho Becker
Eswatini has the highest global prevalence of HIV despite universal access to free treatment. Lack of compliance continues to be a significant challenge for HIV care and management programs throughout the country. Studies investigating barriers to antiretroviral therapy (ART) adherence, particularly in women, who are the most vulnerable to HIV infections, are limited. The disproportionate impact of HIV on women can be attributed to multiple risk factors at the individual, household, and community/structural levels. Women...

I {heart} Meetings... (Don't Stop Believin')

Ann Kardos
A presentation given at the December meeting of the Five College Cataloging & Metadata Group, regarding running better and more effective meetings.

Single Molecule Studies of a Short RNA

Peker Milas
The material related with orientation of Cyanine dyes and their behavior at the ends of duplex RNA is also documented in [110]. Cyanine dyes are widely used to study the folding and structural transformations of nucleic acids using fluorescence resonance energy transfer (FRET). The extent to which FRET can be used to extract inter- and intra-molecular distances has been the subject of considerable debate in the literature; the contribution of dye and linker dynamics to...

Small Sacral sites as both religious features and landscape networks in Central Europe

Elizabeth Brabec
Though often overlooked due to their scale, networks of small sacral Christian architecture in the form of local churches, pilgrimage churches, chapels and small sacral sites, hold a significant importance in rural cultural landscapes in Europe and beyond. The networks are significant in their social stratification, diversity, distribution and abundance across cultural landscapes. The most significant development of networks of small sacral architecture in central and eastern Europe was during the Baroque under Catholicism, although...

Source data for \"Invasive grasses increase fire occurrence and frequency across U.S. ecoregions.\"

Emily Fusco, John Finn, Jennifer Balch, R. Chelsea Nagy & Bethany Bradley

Data from: A standardized assessment of forest mammal communities reveals consistent functional composition and vulnerability across the tropics

Francesco Rovero, Jorge Ahumada, Patrick Jansen, Douglas Sheil, Patricia Alvarez, Kelly Boekee, Santiago Espinosa, Marcela Lima, Emanuel Martin, Timothy O’Brien, Julia Salvador, Fernanda Santos, Melissa Rosa, Alexander Zvoleff, Chris Sutherland & Simone Tenan
Understanding global diversity patterns has benefitted from a focus on functional traits and how they relate to variation in environmental conditions among assemblages. Distant communities in similar environments often share characteristics, and for tropical forest mammals, this functional trait convergence has been demonstrated at coarse scales (110-200 km resolution), but less is known about how these patterns manifest at fine scales, where local processes (e.g., habitat features and anthropogenic activities) and biotic interactions occur. Here,...

Larger body size and earlier run timing increase alewife reproductive success in a whole lake experiment

Meghna Marjadi, Allison Roy, Adrian Jordaan & Andrew Whiteley
Environmental conditions can influence biological characteristics, such as phenology and body size, with important consequences for organismal fitness. Examining these fitness consequences under natural conditions through genetic pedigree reconstruction offers a lens into potential population responses to changing environments. Over 3 years (2013–2015), we introduced adult alewife (Alosa pseudoharengus), anadromous, iteroparous clupeids, into one Massachusetts (USA) lake to complete the first detailed examination of this species’ mating system and assess relationships among body size, reproductive...

Data from: Opening the tap: increased riverine connectivity strengthens marine food web pathways.

Beatriz S. Dias, Michael G. Frisk & Adrian Jordaan
Reduction of ecosystem connectivity has long-lasting impacts on food webs. Anadromous fish, which migrate from marine to freshwater ecosystems to complete reproduction, have seen their historically larger ecosystem role undercut by widespread riverine habitat fragmentation and other impacts mainly derived from anthropogenic sources. The result has been extensive extirpations and increased susceptibility to a suite of environmental factors that currently impede recovery. Under this present-day context of reduced productivity and connectivity, aggressive management actions and...

Thermodynamics of Polyelectrolyte Solutions and Polymer Crystallization

Sabin Adhikari
Polymeric systems exhibit interesting macroscopic properties under different thermodynamic conditions and are prevalent in both biology and synthetic world. How a system of polymers behaves under different thermodynamic conditions is determined by the interplay of different possible interactions such as short-ranged Van der Waals and long-ranged electrostatic interactions and the entropy of individual components present in the system. This work is mostly focused on the theoretical study of the thermodynamic phase behaviors of charged polymers...

Ecology of the Elusive: Genome-Informed Investigation of Soil Microbial Diversity

Lauren Alteio
Soil is considered one of the most diverse ecosystems on Earth, harboring diversity of organisms across the three domains of life. It is spatially and chemically heterogeneous: properties that intertwine in a complex matrix to support organismal diversity and function across different scales. Soil microorganisms both respond to and drive changes in ecosystems through metabolic activities. A single gram of soil is teeming with millions of cells comprised of thousands of species. Much of this...

IMPROVING THE SHEAR BEHAVIOR OF CROSS LAMINATED TIMBER (CLT) PANELS BY OPTIMIZATION OF LAMINATES PLY-ORIENTATION USING EASTERN HEMLOCK

Alireza Bahmanzad
Cross-laminated timber (CLT), is a new generation of engineered wood product initially established in Europe, is utilized in residential and non-residential applications in several countries. CLT is new to the north of the United States, but Europeans have used CLT more than 25 years as an eco-friendly construction product in many construction sectors. Also many spectacular low, mid and even high-rise building constructed around the world using CLT products. CLT panels can be used in...

Citizenship in transit: perils and promises of crossing Mexico

Martha Balaguera
What kind of politics emerges under dire conditions of violence and precarity in the context of transit migration across Mexico? How is sanctuary practiced and gendered? This dissertation analyzes a range of experiences of transit and sanctuary practices of hospitality, care and solidarity, particularly those of marginalized women, nonbinary individuals, and grassroots movements that reveal an emerging pattern of transnational citizenship from below. As a defining issue of the 21stcentury, international migrations have provided an...

Bruhat-Tits Buildings and a Characteristic p Unimodular Symbol Algorithm

Matthew Bates
Let k be the finite field with q elements, let F be the field of Laurent series in the variable 1/t with coefficients in k, and let A be the polynomial ring in the variable t with coefficients in k. Let SLn(F) be the ring of nxn-matrices with entries in F, and determinant 1. Given a polynomial g in A, let Gamma(g) subset SLn(F) be the full congruence subgroup of level g. In this thesis...

Computing Agreement in a Mixed System

Sakshi Bhatia
This dissertation develops a comprehensive response to the question of how agreement is computed in Hindi-Urdu – a language with a mixed agreement system where the verb can agree with a subject or an object depending on the structural context. This dissertation covers new empirical and theoretical ground in two domains. First, I identify three kinds of atypical agreement patterns which are not accounted for under traditional approaches Hindi-Urdu agreement -- verb agreement with the...

Demystifying Library Research: An Evolution

Thea Atwood

Cultural Heritage and Climate Change: Exploring the Impacts and Issues

Elizabeth Brabec, Andrew Potts & Julianne Polanco
As noted at the 2017 ICOMOS Assembly in Delhi, cultural heritage is both under threat from climate change, and an asset in our attempts to adapt to and mitigate its impacts. The Paris Agreement emphasizes the need for urgency about climate change; cultural heritage can play a central role in this effort. For example, iconic sites at risk from storms, coastal erosion, wildfires or permafrost thaw can alert public to the very real impacts and...

Does blood loss explain higher resting metabolic rates in nestling birds with hematophagous ectoparasites?

Natalie Sun, Sarah Goodwin, Michael Griego, Alexander Gerson & Ethan Clotfelter
Nestlings of many bird species are hosts to hematophagous ectoparasites. Parasitism of nestlings is usually sub-lethal, but its effects can extend into the fledgling and adult stages. Nestling hosts lose enough blood to become anemic, but the effects of reduced oxygen-carrying capacity on metabolic rate are poorly understood. This study examined the consequences of parasitism by larval blow flies Protocalliphora sialia for nestling tree swallows Tachycineta bicolor. We found that nestlings with more parasites had...

Registration Year

  • 2019
    34

Resource Types

  • Text
    18
  • Dataset
    16

Affiliations

  • University of Massachusetts Amherst
    34
  • North Carolina State University
    2
  • Wildlife Conservation Society
    2
  • Autonomous University of San Luis Potosí
    1
  • University of Montana
    1
  • University of Erlangen-Nuremberg
    1
  • University of Massachusetts Dartmouth
    1
  • University of Michigan–Ann Arbor
    1
  • Field Museum of Natural History
    1
  • Google (United States)
    1