scholarly journals Which Traits Make Weeds More Successful in Maize Crops? Insights from a Three-Decade Monitoring in France

Plants ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 40 ◽  
Author(s):  
Guillaume Fried ◽  
Bruno Chauvel ◽  
François Munoz ◽  
Xavier Reboud
Keyword(s):  
Management Strategies ◽  
Invasion Biology ◽  
Generalized Least Squares ◽  
Assessment Tools ◽  
Photosynthetic Pathway ◽  
Weed Ecology ◽  
Arable Weeds ◽  
Local Abundance ◽  
The One ◽  
Regional Frequency

A major aim in invasion biology is identifying traits distinguishing alien invasive and alien non-invasive plants. Surprisingly, this approach has been, so far, poorly used to understand why some arable weeds are abundant and widespread while others are rare and narrowly distributed. In the present study, we focused on the characteristics of successful weeds occurring in maize fields, one of the most important crops worldwide. Two national weed surveys conducted in France were used to identify increasing and decreasing species based on 175 and 484 surveyed fields in the 1970s and the 2000s, respectively. Weed trait values related to regional frequency, local abundance, and specialization to maize were identified with phylogenetic generalized least-squares (PGLS). We found a positive relationship between regional frequency and local abundance, i.e., the most widespread weeds were also locally more abundant. We highlighted that weeds with the C4 photosynthetic pathway and summer emergence were more abundant, more frequent, and more specialized to maize crops. More generally, we highlighted two successful strategies: On the one hand, traits related to a general weediness syndrome with rapid resource acquisition (high SLA and Ellenberg-N) and high colonization capacity (seed longevity, fecundity, and wind dispersal); on the other hand, traits related to specific adaptation to spring cultivation (thermophilous species with summer emergence, late flowering, and C4 photosynthetic pathway). Deviations from the abundancy–frequency relationships also indicated that species of the Panicoideae sub-family, species with Triazine-resistant populations, and neophyte species were more abundant than expected by their regional frequency. To some extent, it is therefore possible to predict which species can be troublesome in maize crops and use this information in weed risk assessment tools to prevent new introductions or favor early detection and eradication. This study showed how tools developed in functional and macro-ecology can be used to improve our understanding of weed ecology and to develop more preventive management strategies.

scholarly journals Which Traits Make Weeds More Successful in Maize Crops? Insights from a 3-Decade Monitoring in France

2019 ◽  
Author(s):  
Guillaume Fried ◽  
Bruno Chauvel ◽  
François Munoz ◽  
Xavier Reboud
Keyword(s):  
Management Strategies ◽  
Generalized Least Squares ◽  
Assessment Tools ◽  
Photosynthetic Pathway ◽  
Weed Ecology ◽  
Arable Weeds ◽  
Risk Assessment Tools ◽  
Local Abundance ◽  
The One ◽  
Regional Frequency

Invasion ecology has a long tradition of searching for traits distinguishing alien invasive and non-invasive plants. Surprisingly, this approach has been so far poorly used to understand why some arable weeds are abundant and widespread while others are rare and narrowly distributed. In the present study, we focused on the characteristics of successful weeds occurring in maize fields, one of the most import crop worldwide. Two national weed surveys conducted in France were used to identify increasing and decreasing species based on 175 and 484 surveyed fields in the 1970s and the 2000s, respectively. Weed trait values related to regional frequency, local abundance and specialization to maize were identified with Phylogenetic Generalized Least-Squares (PGLS). We found a positive relationship between regional frequency and local abundance, i.e. the most widespread weeds were also locally more abundant. We highlighted that weeds with the C4 photosynthetic pathway and summer emergence were more abundant, more frequent and more specialized to maize crops. More generally, we highlighted two successful strategies: on the one hand, traits related to a general weediness syndrome with rapid resource acquisition (high SLA and Ellenberg-N) and high colonization capacity (seed longevity, fecundity and wind dispersal), on the other hand, traits related to specific adaptation to spring cultivation (thermophilous species with summer emergence, late flowering and C4 photosynthetic pathway). Deviations from the abundancy-frequency relationships also indicated that species of the Panicoideae sub-family, species with Triazine-resistant populations and neophyte species were more abundant than expected by their regional frequency. To some extent, it is therefore possible to predict which species can be troublesome in maize crops and use this information in weed risk assessment tools to prevent new introductions or favor early detection and eradication. This study showed how tools developed in functional and macro-ecology can be used to improve our understanding of weed ecology and to develop more preventive management strategies.

scholarly journals Mental health and resilience among Eritrean refugees at arrival and one-year post-registration in Switzerland: a cohort study

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Afona Chernet ◽  
Nicole Probst-Hensch ◽  
Véronique Sydow ◽  
Daniel H. Paris ◽  
Niklaus D. Labhardt
Keyword(s):  
Mental Health ◽  
Asylum Seekers ◽  
Assessment Tools ◽  
Migration Route ◽  
Post Traumatic Stress ◽  
Hazardous Alcohol Use ◽  
Hazardous Alcohol ◽  
One Year ◽  
The One

Abstract Objective Eritrea is the most frequent country of origin among asylum seekers in Switzerland. On their journey through the desert and across the Mediterranean Sea, Eritrea refugees are often exposed to traumatizing experiences. The aim of this study is to assess the mental health status and resilience of Eritrean migrants in Switzerland upon arrival and one-year post-arrival, using standardized mental health screening and resilience assessment tools. Results At baseline, 107 refugees (11.2% female, median age 25) were interviewed: 52 (48.6%) screened positive for Post-Traumatic Stress Disorder (score ≥ 30), 10.3% for anxiety (≥ 10) and 15.0% for depression (≥ 10); 17.8% scored as risk/hazardous drinkers (≥ 8). The majority (94.4%) had a high resilience score (≥ 65). For one-year follow-up, 48 asylum seekers could be reached. In interviews 18 (38%) of these reported imprisonment in a transit country and 28 (58%) that they had witnessed the death of a close person along the migration route. At the one year assessment, rates of risky/hazardous alcohol use remained unchanged, rates of positive PTSD screening tended to be lower (50.0% (24/48) at baseline vs 25.0% (12/48) at follow-up), as were rates of positive screening for anxiety (8.3% vs 4.2%) and depression (14.6 vs 6.3%).

scholarly journals Pursuing the SDG11 Targets: The Role of the Sustainability Protocols

2021 ◽  
Vol 13 (7) ◽  
pp. 3858
Author(s):  
Francesca Abastante ◽  
Isabella M. Lami ◽  
Marika Gaballo
Keyword(s):  
Direct Relationship ◽  
Evaluation Criteria ◽  
Assessment Tools ◽  
Social Aspects ◽  
Sustainable Cities ◽  
Sustainable Development Goal ◽  
The Social ◽  
Research Questions ◽  
The One

This paper is built on the following research questions: (i) What are the direct/indirect relationships between Sustainable Development Goal 11 (SDG11) and sustainability protocols? (ii) Could the sustainability protocols constitute a solution towards the achievement of SDG11? We underline that, on the one hand, the SDGs are guidelines to support the development of sustainable policies and thus address all elements that may affect them, and on the other hand, sustainability protocols are assessment tools to promote sustainability-conscious design while remaining focused on the built environment. In the Italian regulatory context, the paper highlights how this difference in terms of focus and scale means that they only overlap and mutually reinforce each other with regard to certain aspects, more related to energy and air pollution issues and less to the social aspects of sustainability. Even if there is not always a direct relationship between the evaluation criteria of the protocols and the indicators of SDG11, it is possible to conclude that the sustainability protocols can facilitate the achievement of the SDG11 targets, acting as a key for the implementation of sustainable cities and helping in structuring the process leading to sustainability in a broader framework.

scholarly journals Anxiety in autistic individuals who speak few or no words: A qualitative study of parental experience and anxiety management

Autism ◽  
2020 ◽  
pp. 136236132096236
Author(s):  
Joanne Tarver ◽  
Effie Pearson ◽  
Georgina Edwards ◽  
Aryana Shirazi ◽  
Liana Potter ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Intellectual Disability ◽  
Language Use ◽  
Management Strategies ◽  
Assessment Tools ◽  
Evidence Based ◽  
Structured Interviews ◽  
Verbal Language ◽  
Parental Recognition

Anxiety is a common co-occurring condition in autism and impacts quality of life of autistic individuals and their families; autistic individuals who speak few or no words represent an under-researched group. This qualitative study aimed to understand more about parental recognition and management of anxiety in autistic individuals who speak few or no words. Semi-structured interviews were conducted with parents/carers of 17 autistic individuals (mage = 14.29) recruited from an existing participant database and social media adverts. Using thematic analysis, 15 themes were placed under three a-priori grand themes: parental recognition of anxiety; parental management of anxiety; and anxiety impact on the autistic individual and their family. Due to reduced verbal language use and overlap with other behaviours, parents described difficulties recognising anxiety in their child. However, they also described use of a number of management strategies, including some which overlap with components of evidence-based interventions for emotional and behavioural problems in autistic individuals (e.g. exposure/sensory calming). Despite this, parents reported that anxiety continues to have significant impact on quality of life. The findings of this study can help to inform the development of targeted intervention and assessment measures for anxiety in autistic individuals who speak few or no words. Lay abstract Anxiety is a common condition in autistic individuals, including those who also have an intellectual disability. Despite this, autistic individuals who have severe to profound intellectual disability, or use few or no words, are often excluded from autism research. There are also very few assessment tools and interventions with known effectiveness for autistic individuals with intellectual disability. In this study, we aimed to learn more about parent/carers experiences of recognising and managing anxiety in autistic individuals who use few or no words. We conducted semi-structured interviews with parents and carers to address three research questions: (1) what techniques and management strategies do parents describe for anxiety-related behaviour in their child; (2) how do communication difficulties impact parental understanding and management of anxiety provoking situations and behaviours; (3) what is the impact of anxiety-related behaviours on the quality of life of autistic individuals and their families? During the interviews, parents described difficulties recognising anxiety in their child, mostly due to reduced verbal language use and anxiety behaviours overlapping with other behaviours (e.g. autism characteristics). However, parents also described use of a number of management strategies, including some which overlap with components of evidence-based interventions for emotional and behavioural problems in autistic individuals (e.g. exposure/sensory calming). Despite this, parents reported that anxiety continues to have significant impact on quality of life. We will use the findings of this study to inform future research to develop assessment tools and interventions for anxiety in autistic individuals who use few or no words.

scholarly journals Book Review: The One-Shot Library Instruction Survival Guide

2015 ◽  
Vol 55 (1) ◽  
pp. 68
Author(s):  
Calantha Tillotson
Keyword(s):  
Information Literacy ◽  
Time Management ◽  
Management Strategies ◽  
Learning Activities ◽  
Traditional Learning ◽  
Library Instruction ◽  
Challenges And Opportunities ◽  
The One ◽  
Traditional Learning Environments

Based on their combined thirty years of experience in information literacy instruction, Heidi Buchanan and Beth McDonough speak honestly of the challenges and opportunities associated with one-shot library sessions and provide readers with practical, creative, and inspirational resources. The authors begin each chapter with an attention-grabbing title, such as “They never told me this in library school” and “There is not enough of me to go around!” After capturing the readers’ attention, they proceed to continually captivate readers which covering relevant topics, such as how to effectively collaborate with departmental instructors, how to create a meaningful session despite severe time constraints, how to utilize active learning activities to engage students, how to instruct in non-traditional learning environments, how to successfully assess instruction sessions, and how to efficiently follow time management strategies.

scholarly journals Smart Electrochromic Windows to Enhance Building Energy Efficiency and Visual Comfort

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1449 ◽  
Author(s):  
Alessandro Cannavale ◽  
Ubaldo Ayr ◽  
Francesco Fiorito ◽  
Francesco Martellotta
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Relevant Literature ◽  
Management Strategies ◽  
Building Energy Efficiency ◽  
Visual Comfort ◽  
Confined Space ◽  
Smart Window ◽  
Smart Windows ◽  
The One

Electrochromic systems for smart windows make it possible to enhance energy efficiency in the construction sector, in both residential and tertiary buildings. The dynamic modulation of the spectral properties of a glazing, within the visible and infrared ranges of wavelengths, allows one to adapt the thermal and optical behavior of a glazing to the everchanging conditions of the environment in which the building is located. This allows appropriate control of the penetration of solar radiation within the building. The consequent advantages are manifold and are still being explored in the scientific literature. On the one hand, the reduction in energy consumption for summer air conditioning (and artificial lighting, too) becomes significant, especially in "cooling dominated" climates, reaching high percentages of saving, compared to common transparent windows; on the other hand, the continuous adaptation of the optical properties of the glass to the changing external conditions makes it possible to set suitable management strategies for the smart window, in order to offer optimal conditions to take advantage of daylight within the confined space. This review aims at a critical review of the relevant literature concerning the benefits obtainable in terms of energy consumption and visual comfort, starting from a survey of the main architectures of the devices available today.

What you need to know about malnutrition in older adults

2020 ◽  
Vol 81 (9) ◽  
pp. 1-8
Author(s):  
Kerry Cheah ◽  
Amy Illsley
Keyword(s):  
Older Patients ◽  
Nutritional Assessment ◽  
Adult Population ◽  
Management Strategies ◽  
Community Dwelling ◽  
Nursing Home Care ◽  
Assessment Tools ◽  
Ageing Population ◽  
Age Related ◽  
Older Adult Population

Malnutrition is the disturbance of normal form or function, arising from the deficiency of one or more nutrients, and is a significant issue in the older adult population. Despite their reduced energy requirements, older patients need the same protein intake and micronutrients as younger patients, but age-related changes may impact the ability to meet these requirements. The cause of malnutrition in individuals is likely to be multifactorial and can therefore be complex to manage. Adequate nutrition is important for both community dwelling patients and inpatients, as malnutrition increases the risk of complications and the likelihood of needing residential or nursing home care on discharge. This article discusses the risk factors for the development of malnutrition in older patients and the different nutritional assessment tools available. Management strategies for optimising nutrition can be divided into systems and supplementation. With an ageing population, most doctors will inevitably become increasingly involved with treating older patients and this article highlights the need to consider a patient's nutritional status. Nutrition should be considered during every ward round and the multidisciplinary team as a whole should maintain an awareness and responsibility for managing malnutrition.

scholarly journals Mammary microbial dysbiosis leads to the zoonosis of bovine mastitis: a One-Health perspective

2020 ◽  
Vol 97 (1) ◽  
Author(s):  
Sudipa Maity ◽  
Kiran Ambatipudi
Keyword(s):  
Global Economy ◽  
One Health ◽  
Management Strategies ◽  
Bovine Mastitis ◽  
Bacterial Disease ◽  
Surveillance Systems ◽  
Microbial Dysbiosis ◽  
Pros And Cons ◽  
Primary Focus ◽  
The One

ABSTRACT Bovine mastitis is a prototypic emerging and reemerging bacterial disease that results in cut-by-cut torture to animals, public health and the global economy. Pathogenic microbes causing mastitis have overcome a series of hierarchical barriers resulting in the zoonotic transmission from bovines to humans either by proximity or remotely through milk and meat. The disease control is challenging and has been attributed to faulty surveillance systems to monitor their emergence at the human–animal interface. The complex interaction between the pathogens, the hidden pathobionts and commensals of the bovine mammary gland that create a menace during mastitis remains unexplored. Here, we review the zoonotic potential of these pathogens with a primary focus on understanding the interplay between the host immunity, mammary ecology and the shift from symbiosis to dysbiosis. We also address the pros and cons of the current management strategies and the extent of the success in implementing the One-Health approach to keep these pathogens at bay.

The Short Demoralization Scale (SDS): A new tool to appraise demoralization in palliative care patients

2017 ◽  
Vol 15 (5) ◽  
pp. 516-523 ◽  
Author(s):  
Laura Galiana ◽  
David Rudilla ◽  
Amparo Oliver ◽  
Pilar Barreto
Keyword(s):  
Palliative Care ◽  
Depression Scale ◽  
Cost Effective ◽  
Assessment Tools ◽  
Cross Sectional ◽  
Brief Assessment ◽  
Palliative Care Setting ◽  
Cross Sectional Design ◽  
The One ◽  
Demoralization Scale

ABSTRACTObjective:The Demoralization Scale (DS) is the most widely used measure for assessing demoralization. Following the recent clamor for brief assessment tools, and taking into account that demoralization has proved to be a symptom that needs to be controlled and treated in the palliative care setting, a shorter scale is needed. The aim of the present research is to introduce and evaluate the Short Demoralization Scale (SDS).Method:We employed a cross-sectional design that included a survey of 226 Spanish palliative care patients from the Hospital General Universitario de Valencia. We employed the SDS, the DS, and the Hospital Anxiety and Depression Scale (HADS).Results:The confirmatory factor analysis supported the one-factor structure of the SDS (χ2(5) = 12.915; p = 0.024; CFI = 0.999; RMSEA = 0.084; CI95% = [0.028, 0.141]). The reliability was found to be appropriate, with a value of Cronbach's alpha (α) equal to 0.920. A cutoff criterion of 10 was established, which favored the interpretability of the instrument.Significance of results:The SDS corrects previous limitations, has a simple scoring system, is cost-effective, and is widely and fully available. In addition, our findings demonstrate that the SDS can be employed effectively in the clinical context.

Using NSG recipient mice improves engraftment of gastric cancer patient derived xenografts.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 70-70
Author(s):  
Sam C. Wang ◽  
Min Zhu ◽  
Ibrahim Nassour ◽  
Jeanne Shen ◽  
John C. Mansour ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Liver Metastases ◽  
Expression Profiles ◽  
Management Strategies ◽  
Axillary Lymph Node Metastasis ◽  
Post Treatment ◽  
Clinical Samples ◽  
Axillary Lymph ◽  
Nsg Mice ◽  
The One

70 Background: Previous gastric cancer (GC) patient derived xenograft (PDX) studies reported engraftment rates inversely proportional to the immunocompromised states of recipient mice (nudes 17%, scid 27%, and NOD/ scid 34%). We tested highly immunocompromised NOD scidgamma (NSG) mice, which lack mature T cells, B cells, or functional natural killer cells, as recipients for low volume biopsies and post-treatment GC samples. Methods: Consent was obtained from GC patients who were scheduled to undergo esophagogastroduodenoscopy (EGD) and diagnostic laparoscopy as part of their disease management strategies. The following amounts of tumor were coated with Matrigel and inoculated into the flanks of NSG mice: EGD biopsies ~10 mg, post-treatment samples ~100 mm3, and peritoneal metastasis biopsies ~100 mm3. Tumors were serially measured and passaged when the greatest dimension reached 1.5 cm, or if there was overlying skin necrosis. Results: The engraftment rates were: EGD biopsies 48% (13 of 27 samples), post-resection samples 58% (7 of 12), and peritoneal metastases 11% (1 of 9). Median time to first passage was 10.1 weeks (range: 8.1 to 12.4) for EGD biopsies and 22.1 weeks (9.6 to 33.0) for post-treatment samples. Two (15%) engrafted EGD mice developed liver metastases, and one (7.7%) had axillary lymph node metastasis (AxLN). Three (47%) engrafted post-treatment mice had liver metastases and two (29%) had AxLN. Histology was generally maintained through passages and metastases with some loss of mucinous components. There were no associations between engraftment rate and any evaluated clinical or pathologic characteristics, including tumor response and overall survival. The tumor from the one patient who had a complete pathologic response after NAT did not engraft. Conclusions: Using highly immunocompromised NSG mice improved engraftment rates of GC PDX, even for challenging specimens such as endoscopic biopsies and post-treatment resection samples. Peritoneal biopsies did not engraft well. Tumor histology was generally maintained through passages. Studies comparing the expression profiles of serially passaged tumors to the original clinical samples are ongoing.

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