scholarly journals Short-term feeding response of the scallop Argopecten purpuratus exposed to two different diets

2004 ◽  
Vol 84 (4) ◽  
pp. 775-779 ◽  
Author(s):  
Jorge M. Navarro ◽  
María José Fernández-Reiriz ◽  
Uxio Labarta
Keyword(s):  
Food Supply ◽  
Clearance Rate ◽  
Selection Process ◽  
Food Concentration ◽  
Particulate Material ◽  
Organic Content ◽  
Natural Food ◽  
Short Term ◽  
Argopecten Purpuratus

Argopecten purpuratus was exposed to two different diets which reflected short term variations in quantity and quality of the natural food supply typical in bays of southern Chile. No significant differences of clearance rate were observed over different time periods at either of two food concentrations. The scallop reduced its clearance rate significantly when it was exposed to the higher food concentration. Pseudofaeces production occurred only at this high diet and the time factor had no significant effect on this process. The organic content of pseudofaeces was significantly lower than the organic content of the food, suggesting a pre-ingestive selection mechanism. Based on this capacity for particle selection, A. purpuratus was able to compensate for the differences in food quality of the experimental diets and ingesting particulate material containing 38% organic matter as a result of the selection process when fed at the higher food concentration. Absorption efficiency was lower following exposure to the high food concentration, suggesting that the experimental time of 72 h was not sufficient to acclimate the digestive response to a food supply significantly different from that of its habitat of origin. Phytoplankton form the principal nutritional source for this epibenthic species, and resuspended detritus, although occurring in large quantities, may only be of importance once digestive processes become acclimated to processing them.

Cathartic Effect of Suicide Attempts Not Limited to Depression

Crisis ◽  
2003 ◽  
Vol 24 (2) ◽  
pp. 73-78 ◽  
Author(s):  
Yves Sarfati ◽  
Blandine Bouchaud ◽  
Marie-Christine Hardy-Baylé
Keyword(s):  
Quality Of Life ◽  
Depressive Symptoms ◽  
Personality Traits ◽  
Rating Scales ◽  
Suicide Attempts ◽  
World Health ◽  
Life Questionnaire ◽  
Short Term

Summary: The cathartic effect of suicide is traditionally defined as the existence of a rapid, significant, and spontaneous decrease in the depressive symptoms of suicide attempters after the act. This study was designed to investigate short-term variations, following a suicide attempt by self-poisoning, of a number of other variables identified as suicidal risk factors: hopelessness, impulsivity, personality traits, and quality of life. Patients hospitalized less than 24 hours after a deliberate (moderate) overdose were presented with the Montgomery-Asberg Depression and Impulsivity Rating Scales, Hopelessness scale, MMPI and World Health Organization's Quality of Life questionnaire (abbreviated versions). They were also asked to complete the same scales and questionnaires 8 days after discharge. The study involved 39 patients, the average interval between initial and follow-up assessment being 13.5 days. All the scores improved significantly, with the exception of quality of life and three out of the eight personality traits. This finding emphasizes the fact that improvement is not limited to depressive symptoms and enables us to identify the relative importance of each studied variable as a risk factor for attempted suicide. The limitations of the study are discussed as well as in particular the nongeneralizability of the sample and setting.

Microsurgery Fellowship Website and Social Media Presence: Are Programs Optimizing Recruitment Strategy?

2020 ◽  
Author(s):  
Andrew Atia ◽  
Hannah C. Langdell ◽  
Andrew Hollins ◽  
Ronnie L. Shammas ◽  
Adam Glener ◽  
...  
Keyword(s):  
Social Media ◽  
Plastic Surgery ◽  
San Francisco ◽  
Selection Process ◽  
Recruitment Strategy ◽  
Published Data ◽  
Social Media Presence ◽  
Eligibility Requirements ◽  
Program Description

Abstract Background Microsurgery fellowship applicants make decisions for future training based on information obtained from colleagues, mentors, and microsurgery fellowship program Websites (MFWs). In this study, we sought to evaluate the accessibility and quality of available information by microsurgery programs by analyzing the most commonly used web resources and social media outlets for applicants. Methods The San Francisco (SF) Match and American Society of Reconstructive Microsurgery Websites were queried in April 2020 for microsurgery fellowship programs (MFPs) participating in the SF Match. Twenty-two independent variables of information were assessed on MFWs based on previously published data. Social media presence was also assessed by querying Facebook, Instagram, and Twitter for official hospital, plastic surgery residency, and microsurgery fellowship accounts. Results All 24 MFWs participating in the SF Match had a webpage. Program description, faculty listing, operative volume, and eligibility requirements were listed for all programs (100%). The majority of MFWs listed affiliated hospitals (75%), provided a link to the fellowship application (66.7%), listed interview dates (66.7%), and highlighted research interests (50%). A minority of MFWs provided information on conference schedule (37.5%), current fellow listing (25%), previous fellow listing (16.67%), and positions held by previous fellows (8.33%). No MFWs (0%) presented information on selection process, or rotation schedule.All hospitals with an MFP had a Facebook page and nearly all had Instagram (83.3%) and Twitter accounts (95.8%). Plastic surgery residency programs at the same institution of an MFP had social media presence on Facebook (38.9%), Twitter (38.9%), and Instagram (66.7%). Only three MFPs had Facebook accounts (12.5%) and none had Instagram or Twitter accounts. Conclusion As the field of microsurgery continues to grow, the need for effective recruitment and training of microsurgeons continues to be essential. Overall, we conclude that both the accessibility and quality of information available to applicants are limited, which is a missed opportunity for recruitment.

On Being Precarious

2020 ◽  
Vol 50 (1) ◽  
pp. 51-54
Author(s):  
Deirdre Flynn
Keyword(s):  
Quality Of Life ◽  
Short Term ◽  
Teaching Research ◽  
Part Time

In this essay, I reflect on my experience of part-time, fixed term, zero-hour, short-term, and unpaid contracts in academia. Precarious contracts are one of the biggest challenges facing our industry as neo-liberal values rule our institutions, impacting our teaching, research, and quality of life.

Selection by Publication in Economics

2005 ◽  
Vol 55 (3) ◽  
pp. 255-269 ◽  
Author(s):  
András Simonovits
Keyword(s):  
Selection Process ◽  
Professional Standards ◽  
Publication Process ◽  
Entry Costs ◽  
Scientific Papers ◽  
Financial Interests ◽  
Source Of Information

According to the dominant view, the quality of individual scientific papers can be evaluated by the standard of the journal in which they are published. This paper attempts to demonstrate the limits of this view in the field of economics. According to our main findings, a publication frequently serves as a signal of high professional standards rather than as a source of information; referees and editors frequently reject good papers and accept bad ones; citation indices only partially balance the distortions deriving from the selection process; there are essential “entry costs” to the publication process. Moreover, financial interests of publishers may contradict scientific interests. As long as leading economists do not give voice to their dissatisfaction, there is no hope for any reform of the selection process.

Bioactive Peptides Sensitize Cells to Anticancer Effects of Oxaliplatin in Human Colorectal Cancer Xenografts in Nude Mice

2019 ◽  
Vol 26 (7) ◽  
pp. 512-522
Author(s):  
Xian Li ◽  
Long Xia ◽  
Xiaohui Ouyang ◽  
Qimuge Suyila ◽  
Liya Su ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Colorectal Cancer ◽  
Nude Mice ◽  
Low Dose ◽  
Bioactive Peptides ◽  
Human Colorectal Cancer ◽  
Short Term ◽  
Hct 116

<P>Background: Despite new agent development and short-term benefits in patients with Colorectal Cancer (CRC), metastatic CRC cure rates have not improved due to high rates of oxaliplatin resistance and toxicity. There is an urgent need for effective tools to prevent and treat CRC and reduce morbidity and mortality of CRC patients. Exploring the effects of bioactive peptides on the antitumor to CRC was of vital importance to the clinical application. </P><P> Objective: This study aimed to investigate the therapeutic impact of Anticancer Bioactive Peptides (ACBP) on anticancer effect of oxaliplatin (LOHP) in human colorectal cancer xenografts models in nude mice. </P><P> Methods: HCT-116 cells were cultured in vitro via CCK-8 assays and the absorbance was measured at 450 nm. Apoptosis and cell cycle were assessed by Flow Cytometry (FCM) in vitro. HCT-116 human colorectal cancer cells inoculated subcutaneously in nude mice of treatment with PBS (GG), ACBP, LOHP, ACBP+LOHP (A+L) in vivo. The quality of life was assessed by dietary amount of nude mice, the weight of nude mice, inhibition rates, tumor weight and tumor volume. Immunohistochemistry and RT-qPCR method was conducted to determine the levels of apoptosisregulating proteins/genes in transplanted tumors. </P><P> Results: ACBP induced substantial reductions in viable cell numbers and apoptosis of HCT116 cells in combined with LOHP in vitro. Compared with the control GG group, ACBP combined low dose oxaliplatin (U) group demonstrated significantly different tumor volume, the rate of apoptosis, the expression levels of Cyt-C, caspase-3,8,9 proteins and corresponding RNAs (P<0.05). The expression of pro-apoptotic proteins in the cytoplasm around the nucleus was significantly enhanced by ACBP. Short term intermittent use of ACBP alone indicted a certain inhibitory effect on tumor growth, and improve the quality of life of tumor bearing nude mice. </P><P> Conclusion: ACBP significantly increased the anti-cancer responses of low dose oxaliplatin (L-LOHP), thus, significantly improving the quality of life of tumor-bearing nude mice.</P>

Do We Have Another Option to Treat Bleeding Hemorrhoids? The Emborrhoid Technique: Experience in 16 Patients

2020 ◽  
Vol 15 ◽  
Author(s):  
Elisabetta Moggia ◽  
Giuseppina Talamo ◽  
Gaetano Gallo ◽  
Gaetano Gallo ◽  
Matteo Barattini ◽  
...  
Keyword(s):  
Rectal Bleeding ◽  
Hemorrhoidal Disease ◽  
Severe Bleeding ◽  
Conventional Surgery ◽  
Short Term ◽  
Selective Embolization ◽  
Invasive Techniques ◽  
Bleeding Hemorrhoids

Background: Hemorrhoidal disease is very common in western countries and rectal bleeding is the main symptom complained by patients. Nowadays the ultimate goal of treatment is to block the bleeding with minimally-invasive techniques to minimize post-procedural pain. Objective: The aim of this study is to assess the preliminary results of the emborrhoid technique (embolization of the superior rectal arteries branches) as a new tool for the proctologist to treat severe bleeding hemorrhoids causing anemia. Many categories of patients might benefit from this treatment, such as patients not eligible for conventional surgery, patients not responding to conventional treatment and fit patients with severe bleeding who refused endorectal surgical therapy. Method: From May 2017 to November 2018 a total of 16 patients with chronic rectal bleeding due to hemorrhoids underwent super-selective embolization of the superior rectal arteries at the department of General Surgery in La Spezia, S. Andrea Hospital, Italy. Median age was 59 years. 14 patients were males (87.5 %). Results: No post-procedural and short-term complications were observed at maximum follow up (12 months). The reduction of rectal bleeding with improvement of the quality of life was obtained in 14 patients (87.5%). Conclusion: Our study, although small in number, demonstrates that embolization of superior rectal arteries with coils to treat severe bleeding due to hemorrhoids is safe and effective and does not lead to immediate complications.

scholarly journals Parental Conflict, Regret, and Short-term Impact on Quality of Life in Tracheostomy Decision-Making

2020 ◽  
Vol 21 (2) ◽  
pp. 136-142 ◽  
Author(s):  
Tessie W. October ◽  
Amy H. Jones ◽  
Hannah Greenlick Michals ◽  
Lauren M. Hebert ◽  
Jiji Jiang ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Decision Making ◽  
Parental Conflict ◽  
Short Term

scholarly journals Galileo L10 Satellites: Orbit, Clock and Signal-in-Space Performance Analysis

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1695
Author(s):  
Constantin-Octavian Andrei ◽  
Sonja Lahtinen ◽  
Markku Poutanen ◽  
Hannu Koivula ◽  
Jan Johansson
Keyword(s):  
Performance Indicators ◽  
Satellite System ◽  
Short Term ◽  
Orbital Inclination ◽  
Navigation Data ◽  
Periodic Signals ◽  
Global Navigation Satellite ◽  
Minor Correction ◽  
Very High

The tenth launch (L10) of the European Global Navigation Satellite System Galileo filled in all orbital slots in the constellation. The launch carried four Galileo satellites and took place in July 2018. The satellites were declared operational in February 2019. In this study, we report on the performance of the Galileo L10 satellites in terms of orbital inclination and repeat period parameters, broadcast satellite clocks and signal in space (SiS) performance indicators. We used all available broadcast navigation data from the IGS consolidated navigation files. These satellites have not been reported in the previous studies. First, the orbital inclination (56.7±0.15°) and repeat period (50680.7±0.22 s) for all four satellites are within the nominal values. The data analysis reveals also 13.5-, 27-, 177- and 354-days periodic signals. Second, the broadcast satellite clocks show different correction magnitude due to different trends in the bias component. One clock switch and several other minor correction jumps have occurred since the satellites were declared operational. Short-term discontinuities are within ±1 ps/s, whereas clock accuracy values are constantly below 0.20 m (root-mean-square—rms). Finally, the SiS performance has been very high in terms of availability and accuracy. Monthly SiS availability has been constantly above the target value of 87% and much higher in 2020 as compared to 2019. Monthly SiS accuracy has been below 0.20 m (95th percentile) and below 0.40 m (99th percentile). The performance figures depend on the content and quality of the consolidated navigation files as well as the precise reference products. Nevertheless, these levels of accuracy are well below the 7 m threshold (95th percentile) specified in the Galileo service definition document.

scholarly journals Short‐term Neuropsychiatric Outcomes and Quality of Life in COVID‐19 Survivors

2021 ◽  
Author(s):  
Raúl Méndez ◽  
Vicent Balanzá‐Martínez ◽  
Sussy C. Luperdi ◽  
Itziar Estrada ◽  
Ana Latorre ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Short Term
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