Science

2021 ◽  
pp. 60-84
Author(s):  
Stephen V. Bittner
Keyword(s):  
Natural Scientist ◽  
Specific Level

Chapter 2 traces Russia’s response in the 1880s and 1890s to the ‘great wine blight’, the phylloxera epidemic that nearly destroyed European viniculture entirely. Long after a French botanist, Jules-Émile Planchon, devised a sure-fire solution—grafting the scions of endangered European vines onto the rootstock of immune American vines—Russian scientists persisted with the use of an ineffective pesticide. The reasons why they persisted had a lot to do with the unusual views of Aleksandr Kovalevskii, a pioneering natural scientist and chairman of the Bessarabian Phylloxera Commission. Kovalevksii argued that the ‘struggle for existence’ envisioned by Darwin’s theory of speciation was occurring on the inter- rather than the intra-specific level, between different species of grapevines. Planchon’s grafting, in Kovalevskii’s view, thus constituted choosing sides in the existential struggle between American and European vines.

The Clinician Directed Hierarchy: A Clinical Training Tool

2008 ◽  
Vol 11 (2) ◽  
pp. 56-60 ◽  
Author(s):  
Jill K. Duthie
Keyword(s):  
Clinical Supervision ◽  
Clinical Training ◽  
Clinical Teaching ◽  
Clinical Skills ◽  
Clinical Settings ◽  
Specific Level ◽  
Problem Solving Skills ◽  
Training Tool ◽  
Target Behaviors ◽  
Intervention Process

Abstract Clinical supervisors in university based clinical settings are challenged by numerous tasks to promote the development of self-analysis and problem-solving skills of the clinical student (American Speech-Language-Hearing Association, ASHA, 1985). The Clinician Directed Hierarchy is a clinical training tool that assists the clinical teaching process by directing the student clinician’s focus to a specific level of intervention. At each of five levels of intervention, the clinician develops an understanding of the client’s speech/language target behaviors and matches clinical support accordingly. Additionally, principles and activities of generalization are highlighted for each intervention level. Preliminary findings suggest this is a useful training tool for university clinical settings. An essential goal of effective clinical supervision is the provision of support and guidance in the student clinician’s development of independent clinical skills (Larson, 2007). The student clinician is challenged with identifying client behaviors in the therapeutic process and learning to match his or her instructions, models, prompts, reinforcement, and use of stimuli appropriately according to the client’s needs. In addition, the student clinician must be aware of techniques in the intervention process that will promote generalization of new communication behaviors. Throughout the intervention process, clinicians are charged with identifying appropriate target behaviors, quantifying the progress of the client’s acquisition of the targets, and making adjustments within and between sessions as necessary. Central to the development of clinical skills is the feedback provided by the clinical supervisor (Brasseur, 1989; Moss, 2007). Particularly in the early stages of clinical skills development, the supervisor is challenged with addressing numerous aspects of clinical performance and awareness, while ensuring the client’s welfare (Moss). To address the management of clinician and client behaviors while developing an understanding of the clinical intervention process, the University of the Pacific has developed and begun to implement the Clinician Directed Hierarchy.

Life in the Open with Charles Frederick Holder

2014 ◽  
Vol 96 (2) ◽  
pp. 206-221
Author(s):  
Jane Apostol
Keyword(s):  
Natural Science ◽  
Children's Books ◽  
Children’S Books ◽  
Sport Fishing ◽  
Prolific Author ◽  
Natural Scientist ◽  
The Arts ◽  
Santa Catalina Island

Natural scientist Charles Frederick Holder settled in Pasadena in 1885. As a prolific author, lecturer, and editor, Holder was a key promoter of the region, sport fishing, and natural science. He wrote popular children’s books as well. He is also remembered as an influential figure in education and the arts and as a founder of the Tuna Club on Santa Catalina Island and the Valley Hunt Club in Pasadena and its Tournament of Roses.

QUALITY MANAGEMENT PRINCIPLES OF CLINICAL AND LABORATORY ACTIVITIES

2018 ◽  
Vol 28 (2) ◽  
pp. 689-693
Author(s):  
Nikola Sabev
Keyword(s):  
Evaluation System ◽  
Quality Of Healthcare ◽  
Laboratory Analysis ◽  
Medical Services ◽  
Administrative Authority ◽  
Specific Level ◽  
Goods And Services ◽  
Laboratory Activities ◽  
Analytical Accuracy

Providing a specific level of healthcare quality is an important and a complex issue, determined by the extent of influence of number of interrelated and predetermined factors that act at different stages throughout the continuum of healthcare activities. A final healthcare product is a complex conglomerate of goods and services being heterogeneous with a time-varying result and a pronounced individuality. Thus, healthcare managers are required to put its supporting and continuous upgrading at the core of their efforts, which in turn will result in cost reduction, good collaboration between individual professionals, improved financial performance and, ultimately, patients will be optimally serviced and their needs and expectations will be satisfied.Indicators to measure quality of medical services give an idea of their characteristics, conditions and requirements for implementation. In this respect, quality assurance in clinical laboratories is an important process involving a complex system of planned actions at all stages of laboratory analysis in order to achieve the most accurate results with the aim of achieving the most accurate result, of monitoring the effect of the treatment and prognosis of the disease in question. The high quality of laboratory medical services helps modern clinicians in their practical activities and is a guarantor of achieving an adequate healthcare outcome. The ‘Quality in Laboratory Medicine’ concept evolves over time, focusing not only on analytical accuracy but also on a broader and more comprehensive basis that takes into account all the steps of clinical and laboratory analysis, providing valuable information in the process of making clinical decisions that are subordinated entirely to the cares of the patient.All healthcare professionals under the administrative authority of the medical institution, that should guarantee the necessary resources for this process, should participate in providing and improving the quality of services. It is necessary to cover the entire organizational structure, by paying attention to the optimization of the relations between staff and patients. Healthcare managers should provide permanent monitoring and a process evaluation system at each stage, allowing options for choosing alternatives for a solution and precise selectivity, aimed at improving the quality of healthcare, in particular, clinical and laboratory activities and services.

Notes: Determining Sample Size in Throughfall Studies

1979 ◽  
Vol 25 (4) ◽  
pp. 582-584 ◽  
Author(s):  
D. L. Peterson ◽  
G. L. Rolfe
Keyword(s):  
Nutrient Cycling ◽  
Sample Size ◽  
Predictive Value ◽  
Regression Equations ◽  
Volume Data ◽  
Southern Illinois ◽  
Specific Level ◽  
Collection Data ◽  
Seasonal Basis

Abstract Variation in throughfall collection data is a major concern in nutrient cycling studies. In order to determine the magnitude of this variability in throughfall volume data collected in an oak-hickory stand in southern Illinois, regression equations were developed which indicate the sample size necessary for a specific level of variability. In addition to having predictive value, these equations indicate differences in variability on a seasonal basis. Forest Sci. 25:582-584.

scholarly journals Management of Herpesvirus Infections in Hematopoietic Cell Transplant Recipients

2021 ◽  
Vol 2 (1) ◽  
pp. 8-21
Author(s):  
Jan Styczynski
Keyword(s):  
Cell Transplantation ◽  
Hematopoietic Cell Transplantation ◽  
Cellular Therapy ◽  
Hematopoietic Cell ◽  
Host Cells ◽  
Preventive Strategy ◽  
Cell Transplant ◽  
Hematopoietic Cell Transplant ◽  
Screening Assay ◽  
Specific Level

Following primary infection, herpesviruses establish latency in infected individuals in the host cells and may reactivate upon external stimuli and during periods of immunosuppression. The objective of this paper was to the present current strategies on preventive and therapeutic management of infections with herpesviruses in recipients of hematopoietic cell transplantation. Strategies of antiviral management include prophylaxis, pre-emptive treatment and targeted treatment. Empirical therapy is not used in antiviral strategies. Prophylaxis can be done at universal (preventive strategy) and specific level. Universal prophylaxis includes non-pharmacologic methods of prevention of infection or reactivation. Risk-adapted specific prophylaxis includes use of specific antivirals or cellular therapy or other specific methods in order to prevent specific infection, in high-risk groups. Pre-emptive therapy means use of therapeutic approaches in asymptomatic infection, detected by a screening assay. Targeted therapy is used in established specific viral end-organ infections. The following sections of the paper refer to prophylaxis and treatment strategies, respectively, against CMV, EBV, HSV, VZV, HHV-6, HHV-7, and HHV-8 after allogeneic hematopoietic cell transplantation.

scholarly journals Influence of Time Delay on Controlling the Non-Linear Oscillations of a Rotating Blade

Symmetry ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 85
Author(s):  
Yasser Salah Hamed ◽  
Ali Kandil
Keyword(s):  
Time Delay ◽  
Natural Frequency ◽  
Multiple Scales ◽  
Control Process ◽  
Control Force ◽  
Specific Level ◽  
Loop Control ◽  
Positive Displacement ◽  
Non Linear ◽  
Linear Vibrations

Time delay is an obstacle in the way of actively controlling non-linear vibrations. In this paper, a rotating blade’s non-linear oscillations are reduced via a time-delayed non-linear saturation controller (NSC). This controller is excited by a positive displacement signal measured from the sensors on the blade, and its output is the suitable control force applied onto the actuators on the blade driving it to the desired minimum vibratory level. Based on the saturation phenomenon, the blade vibrations can be saturated at a specific level while the rest of the energy is transferred to the controller. This can be done by adjusting the controller natural frequency to be one half of the blade natural frequency. The whole behavior is governed by a system of first-order differential equations gained by the method of multiple scales. Different responses are included to show the influences of time delay on the closed-loop control process. Also, a good agreement can be noticed between the analytical curves and the numerically simulated ones.

scholarly journals The Demobilization of Class Politics in Denmark: The Social Democratic Party’s Group-Based Appeals 1961–2004

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Mads Thau
Keyword(s):  
Democratic Party ◽  
General Level ◽  
Social Democratic Party ◽  
Left Wing ◽  
Class Politics ◽  
Specific Level ◽  
Social Democratic ◽  
The Social ◽  
Democratic Parties ◽  
Social Democratic Parties

Abstract In Denmark, as in other Western European countries, the working class does not vote for social democratic parties to the same extent as before. Yet, what role did the social democratic parties themselves play in the demobilization of class politics? Building on core ideas from public opinion literature, this article differs from the focus on party policy positions in previous work and, instead, focuses on the group-based appeals of the Social Democratic Party in Denmark. Based on a quantitative content analysis of party programs between 1961 and 2004, I find that, at the general level, class-related appeals have been replaced by appeals targeting non-economic groups. At the specific level, the class-related appeals that remain have increasingly been targeting businesses at the expense of traditional left-wing groups such as wage earners, tenants and pensioners. These findings support a widespread hypothesis that party strategy was crucial in the decline of class politics, but also suggests that future work on class mobilization should adopt a group-centered perspective.

Tissue tolerance mechanisms conferring salinity tolerance in a halophytic perennial species Nitraria sibirica Pall.

2020 ◽  
Author(s):  
Xiaoqian Tang ◽  
Huilong Zhang ◽  
Sergey Shabala ◽  
Huanyong Li ◽  
Xiuyan Yang ◽  
...  
Keyword(s):  
Plant Root ◽  
Transcriptional Level ◽  
Distribution Analysis ◽  
Specific Level ◽  
Saline Environment ◽  
Nitraria Sibirica ◽  
Mechanistic Basis ◽  
Plant Salt Tolerance ◽  
Cellular Compartments ◽  
Growth Of Seedlings

Abstract Plant salt tolerance relies on a coordinated functioning of different tissues and organs. Salinity tissue tolerance is one of the key traits that confers plant adaptation to saline environment. This trait implies maintenance low cytosolic Na+/K+ ratio in metabolically active cellular compartments. In this study, we used Nitraria sibirica Pall., a perennial woody halophytes species, to understand the mechanistic basis of its salinity tissue tolerance. The results showed that the growth of seedlings was stimulated by 100-200 mM NaCl treatment. The ions distribution analysis showed that the leaves acted as Na+ sink while plant root possess superior K+ retention. The excessive Na+ absorbed from soil was mainly transported to the shoot and eventually sequestrated into mesophyll vacuoles in the leaves. As a result, N. sibirica could keep optimal balance of K+/Na+ at a tissue- and cell-specific level under saline condition. To enable this, N. sibirica increased both vacuolar H+-ATPase and H+-PPase enzymes activities and up-regulated expressions of NsVHA, NsVP1 and NsNHX1 genes. Vacuolar Na+ sequestration in the leaf mesophyll mediated by NsVHA, NsVP1 and NsNHX1 reduced the Na+ concentration in cytosol and inhibited further K+ loss. Meanwhile, N.sibirica enhanced the TPK expression at the transcriptional level to promote K+ efflux from vacuole into cytoplasm, assisting in maintaining cytosolic K+ homeostasis. It is concluded that the tissue tolerance traits such as vacuolar Na+ sequestration and intracellular K+ homeostasis is critical to confer adaptation of N. sibirica to soil salinity.

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