A CONTROLLED COMPARISON OF EMOTIONAL REACTIVITY AND PHYSIOLOGICAL RESPONSE IN CHRONIC OROFACIAL PAIN PATIENTS

This study examined the emotional and physiological differences between masticatory muscle pain patients and age, height, and weight matched pain-free controls. Physiological activation and emotional reactivity were assessed in the 22 muscle pain patients and 23 pain-free controls during a baseline rest period, while discussing a personally relevant stressor, and during a post-stressor recovery period. Physiological activity was assessed through the use of the frequency domain heart rate variability indices. Activity in the high frequency heart rate variability range is an index of parasympathetic activity while activity in the low frequency heart rate variability range is an index of both sympathetic and parasympathetic activity (Akselrod, 1981). The muscle pain patients showed significantly more physiological activation during both the baseline rest and the post-stressor recovery periods. These physiological differences were quantified by higher low frequency heart rate variability and lower high frequency heart rate variability during these study periods. This pattern of higher activation was also present in the report of emotional reactivity in the muscle pain patients. The emotional and physiological differences between the groups across study periods were more pronounced in muscle pain patients who reported a traumatic life experience. These results provide evidence of physiological activation and emotional responding in masticatory muscle pain patients that differentiates them from matched pain-free controls. The use of HRV indices to measure physiological functioning quantifies the degree of sympathetic and parasympathetic activation. Study results suggest the use of these HRV indices will improve understanding of the role that excitatory and inhibitory mechanisms play in the onset and maintenance of chronic masticatory muscle pain conditions

THE ROLE OF SOCIAL AND DISPOSITIONAL VARIABLES ASSOCIATED WITH EMOTIONAL PROCESSING IN ADJUSTMENT TO BREAST CANCER

Recent theories suggest that cognitive and emotional processing is critical to successful adjustment to traumatic experiences, such as breast cancer. Cognitive and emotional processing of trauma can be facilitated by both dispositional (e.g., emotional intelligence) and situational (e.g., social supports, social constraints) factors. The present study investigated the relationship between emotional intelligence and current social support and constraints in a sample of 190 breast cancer survivors (mean age=48.3 years; SD=8.9). Women were recruited via postings to on-line breast cancer support groups. Postings to support groups described the study, and provided a link to the study web site. The study consisted of eight web pages, each containing a separate questionnaire. Study questionnaires included a demographic/clinical screening, and self-report measures of social support, social constraints, intrusive ideation and avoidance, anxiety, depression, and emotional intelligence. Multiple regression analyses indicated that high social constraints and low emotional intelligence were associated with high psychological distress, while there was no significant association with social support. In conclusion, study results support the social-cognitive processing model. The inclusion of emotional intelligence may further broaden this model, and foster additional research. Results also demonstrate that Internet-based data collection is a useful research method

Underwater radiated noise levels of a research icebreaker in the central Arctic Ocean

U.S. Coast Guard Cutter Healy\u27s underwater radiated noise signature was characterized in the central Arctic Ocean during different types of ice-breaking operations. Propulsion modes included transit in variable ice cover, breaking heavy ice with backing-and-ramming maneuvers, and dynamic positioning with the bow thruster in operation. Compared to open-water transit, Healy\u27s noise signature increased approximately 10 dB between 20 Hz and 2 kHz when breaking ice. The highest noise levels resulted while the ship was engaged in backing-and-ramming maneuvers, owing to cavitation when operating the propellers astern or in opposing directions. In frequency bands centered near 10, 50, and 100 Hz, source levels reached 190–200 dB re: 1 μPa at 1 m (full octave band) during ice-breaking operations

Video Conversations - The Future of the Colorado River

This video series explores key Colorado River management issues with key managers across the basin. Video discussions in the table on the next page are presented in the order they were recorded. Topics include river ecosystems, California, Upper Basin, Tribal, and Federal perspectives, as well as future hydrology and climate. Each video runs for 60 to 90 minutes. Speakers start by describing how they got to the place they are professionally. There are prepared remarks and questions and answers from participants who attended at the time the video was recorded. Links to suggested readings are provided. Click the VIDEO url to access the video. Several early videos are no longer available but slides are provided. Asynchronous discussion prompts for select videos are noted in the far right column of the table and appear below the table. This series was produced during April and early May 2020 as part of the courses CEE 6490 Integrated River Basins Watershed Planning and Management and WATS 6330/5330 Large River Management at Utah State University co-taught by David Rosenberg and Jack Schmidt. The video series was produced as an alternative to a multi-day field trip to Glen Canyon Dam and Lees Ferry and face-to-face meetings with stakeholders that was canceled because of university travel restrictions imposed on March 11, 2020. Additional videos have been produced after May 2020 and are available at https://qcnr.usu.edu/coloradoriver/learn/

The Ursinus Weekly, April 13, 1959

Pearson crowned queen; Cub & Key taps four men • Meistersingers to present concert this Thurs. evening • APO invites students to hike on Saturday • Stars & Players meeting; Officers to be nominated • Slate announced for organization elections on 21st • Paris visits U.C. as Cafe Boheme opens Sat. night • Gundersheimer speaks to group on growth of early Christian art • Intercollegiate panel to discuss customs Wed. • Beneath the sea is May Day theme with novel dances • National Library Week to be observed by U.C. • Editorial: The Christian college • Easy access? • Racketmen ready for Swarthmore • Varsity badminton triumphs 3rd year with 5-0 season • Albright nine defeats UC team; Dietzel pitches • Spring sports begin; Girls\u27 teams look good • Vache addresses WAA on lacrosse • Opening day • Brownback-Anders meets Thurs. to hear Bennett • Student opinionhttps://digitalcommons.ursinus.edu/weekly/1382/thumbnail.jp

Twentieth Century Geomorphic Changes of the Lower Green River in Canyonlands National Park, Utah: An Investigation of Timing, Magnitude and Process

Since the early 20th century, the Green River, the longest tributary of the Colorado River, has narrowed, decreasing available riparian and aquatic habitat. Initially, the widespread establishment of non-native tamarisk was considered to be the primary driver of channel narrowing. An alternative hypothesis postulated that changes in hydrology drove narrowing. Reductions in total streamflow and changes to flow regime occurred due to wide-spread water development, decreased snowmelt flood magnitude, and the increased cyclicity of wet and dry years. The two hypotheses agree on channel narrowing, but each influences modern river management differently. A tamarisk-driven model of narrowing implies that modern flow management doesn’t substantially affect channel change. Conversely, channel narrowing driven by changes in hydrology implies that present flow management decisions matter and continued adjustments to flow regime may result in future channel change. To understand the roles of decreasing total annual flow, declining annual peak flood magnitude, and changing vegetation communities on 20th century channel narrowing, we investigated channel narrowing along the lower Green River within Canyonlands National Park (CNP). Previous studies agree that the channel has narrowed, however, the rate, timing and magnitude of documented narrowing are only partially understood. Multiple lines of evidence were used to reconstruct the history of channel narrowing in the lower Green River. This study focuses on channel narrowing, but additionally investigated possible changes to channel depth, identified process, timing and magnitude of floodplain formation. Floodplain formation was described in the field using stratigraphy, sedimentology, and dendrogeomorphology exposed in a floodplain trench. Channel and floodplain surveys were conducted to determine possible changes in bed elevation. Additionally, existing aerial imagery, hydrologic data, and sediment transport data were analyzed. These techniques were applied to determine magnitude, timing and processes of channel narrowing at multiple spatial and temporal scales. The floodplain investigation identified a new period of channel narrowing by vertical accretion after high peak flow years of 1983 and 1984. Narrowing was initiated by vertical accretion in the active channel, deposited by moderate floods exceeded more than 50% of the time. Vertical accretion continued in the early 1990s, converting the active channel into a periodically inundated floodplain surface. Suspended-sediment deposition dominated deposits, resulting in the formation of natural levees and floodplain troughs in both inset floodplains. Rates of deposition were highly variable, ranging from 0.03-0.50 m/yr. The lower Green River within Canyonlands National Park has narrowed substantially since the late 1800s, resulting in a narrower channel. Changes to flood magnitude, rate and timing since 1900, driven by increased water storage and diversion in the Green River basin and declines in annual precipitation, were responsible for inset floodplain formation. Floodplains of the contemporary lower Green River in CNP began forming in the late 1930s and continued to form and vertically aggrade in the 20th century by inset floodplain formation. During this time period, peak flow and total runoff declined due to climatic changes and water development. Analysis of aerial imagery covering 61 kilometers (km) of the Green River in CNP shows that changes to the floodplain identified in the trench are representative of the entire study area. The establishment of non-native tamarisk (Tamarix spp.) did not drive channel narrowing, though dense stands stabilized banks and likely promoted sediment deposition. The lower Green River narrowed 12% from 1940-2014, with the majority of narrowing (10% of all narrowing) occurring from the 1980s to the present. Inset floodplain formation reflects changes to flood magnitude and timing resulting from water development and decreases in natural runoff. Findings suggest that long-term management of the riverine corridor within Canyonlands National Park will require a greater focus on upstream flow contributions and how those flows are currently managed. Recovery of endangered endemic native fishes, the Colorado pikeminnow (Ptychocheilus lucius), and the razorback sucker (Xyrauchen texanus), plays a primary role in determining current flow allocations. Collaboration with upstream stakeholders and managers is necessary to maximize elements of the flow regime that preserve channel width and limit channel narrowing