827 research outputs found

    Aging Under Erasure

    Get PDF
    Aging is a multifaceted journey that is different for everyone. It is a fluid process; there is no one predictable moment or age when a particular experience takes place. For that reason, the series “Aging Under Erasure” encompasses a myriad of subjects to emphasize and illustrate the diversity and complexity of the process. My work visualizes the feelings, observations, and realities of aging in an attempt to create understanding, alter perceptions, and contemplate the universality of change. The works are inspired by personal experience, dialogical practice, and academic research. Using paper and/or traditional and unusual mosaic materials and techniques, the artworks unite concept with material attributes to convey their message

    The ecology of fear in estuarine communities: cascading effects of multiple predators

    Get PDF
    The role of predation has long influenced our understanding of ecological processes from the individual to the landscape level. Recent interest in the role of nonconsumptive effects of predators, or the consequences of prey defensive behaviors in response to predation risk, has revolutionized how ecologists perceive the role of predators in ecological communities. From focusing on how individual predators affect prey risk taking behaviors and foraging tactics, to the consequences of these behavioral shifts for ecosystem functions and services including primary production, nutrient cycling and energy transfer, we now know that the mere presence of predators can sometimes be more important than their lethal effects on prey density. However, predicting the cascading effects of multiple predator assemblages is often challenging and counterintuitive due to the consequences of behavioral interactions among predators and their prey. I tested the effects of predator presence, identity and richness on prey and basal resources in field and mesocosm experiments based on estuarine communities. By allowing predators to scare but not consume their prey, I examined the generality of nonconsumptive predator effects in these systems across multiple predator species. Predators had varying effects on prey density and the strength of a given prey antipredator behavior, with cascading effects on prey populations and resource dynamics over time. The presence of multiple predators heightened prey antipredator behavior, including reductions in foraging rates, and promoted basal resources despite changes in predation risk. Changes in predator diversity may have profound consequences for marine communities by altering the strength of both consumptive and nonconsumptive predator-prey interactions, with consequences for the strength of a trophic cascade. Complex food web models incorporating both consumptive and nonconsumptive pathways are necessary to understand and predict the effects of ongoing declines in predator abundance and diversity

    Safety and pharmacokinetics of MM-302, a HER2-targeted antibody–liposomal doxorubicin conjugate, in patients with advanced HER2-positive breast cancer: A phase 1 dose-escalation study

    Get PDF
    BackgroundThis phase 1 dose-escalation trial studied MM-302, a novel HER2-targeted PEGylated antibody-liposomal doxorubicin conjugate, in HER2-positive locally advanced/metastatic breast cancer.MethodsPatients were enrolled in four cohorts: MM-302 monotherapy (8, 16, 30, 40, and 50 mg/m2 every 4 weeks [q4w]); MM-302 (30 or 40 mg/m2 q4w) plus trastuzumab (4 mg/kg q2w); MM-302 (30 mg/m2) plus trastuzumab (6 mg/kg) q3w; MM-302 (30 mg/m2) plus trastuzumab (6 mg/kg) and cyclophosphamide (450 mg/m2) q3w.ResultsSixty-nine patients were treated. The most common adverse events (AEs) were fatigue and nausea. Grade 3/4 AEs of special interest included neutropenia, fatigue, mucosal inflammation, anemia, thrombocytopenia, febrile neutropenia, and palmar-plantar erythrodysesthesia. The MTD was not reached. With MM-302 ≥ 30 mg/m2, overall response rate (ORR) was 13% and median progression-free survival (mPFS) 7.4 months (95% CI: 3·5-10·9) in all arms. In 25 anthracycline-naïve patients, ORR was 28·0% and mPFS 10·9 months (95% CI: 1·8-15·3). Imaging with 64Cu-labeled MM-302 visualized tumor-drug penetrance in tumors throughout the body, including the brain.ConclusionMM-302 monotherapy, in combination with trastuzumab, or trastuzumab plus cyclophosphamide, was well tolerated and showed promising efficacy. The selected phase 2 MM-302 dose was 30 mg/m2 plus 6 mg/kg trastuzumab q3w

    Flowcell Systems for Single Molecule Detection

    Get PDF
    The present invention provides compounds, methods and systems for sequencing nucleic acid using single molecule detection. Using labeled NPs that exhibit charge-switching behavior, single-molecule DNA sequencing in a microchannel sorting system is realized. In operation, sequencing products are detected enabling real-time sequencing as successive detectable moieties flow through a detection channel. By electrically sorting charged molecules, the cleaved product molecules are detected in isolation without interference from unincorporated NPs and without illuminating the polymerase-DNA complex

    Flowcell Systems for Single Molecule Detection

    Get PDF
    The present invention provides compounds, methods and systems for sequencing nucleic acid using single molecule detection. Using labeled NPs that exhibit charge-switching behavior, single-molecule DNA sequencing in a microchannel sorting system is realized. In operation, sequencing products are detected enabling real-time sequencing as successive detectable moieties flow through a detection channel. By electrically sorting charged molecules, the cleaved product molecules are detected in isolation without interference from unincorporated NPs and without illuminating the polymerase-DNA complex
    corecore