Response of different white fir geographic provenances to Trichosporium symbioticum inoculation in California

2012 ◽  
Vol 42 (6) ◽  
pp. 1178-1183
Author(s):  
William J. Otrosina ◽  
Stanley J. Zarnoch
Keyword(s):  
Genetic Variability ◽  
Significant Interaction ◽  
Common Garden ◽  
Lesion Length ◽  
Abies Concolor ◽  
Future Studies ◽  
White Fir ◽  
The One

We inoculated the fir engraver ( Scolytus ventralis LeConte) associated fungus Trichosporium symbioticum Wright onto 56 white fir ( Abies concolor (Gordon & Glend.) Lindl. ex Hildebr.) trees planted in a common garden study near Camino, California, that represented five geographic provenances of this species. The objective was to determine if there is a differential lesion length response of white fir provenances with respect to provenance. We found a significant (P < 0.019) difference between the provenances from Arizona and those of eastern Nevada origins 28 days after inoculation. There was a significant interaction between the two T. symbioticum isolates and season of inoculation. Fall inoculations tended to have smaller lesions than those in the spring but this varied by isolate in that the one from eastern Nevada tended to produce longer lesions in the spring (P = 0.0001) whereas the isolate from the Camino plantation did not differ between spring and fall (P = 1.000). There is evidence for genetic variability relative to white fir provenance lesion length in response to T. symbioticum inoculation, and in future studies, isolate variability should also be taken into account.

Dreams of Truck Drivers: A Test of the Continuity Hypothesis of Dreaming

2005 ◽  
Vol 25 (2) ◽  
pp. 179-186 ◽  
Author(s):  
Michael Schredl ◽  
Arthur Funkhouser ◽  
Nicole Arn
Keyword(s):  
Empirical Studies ◽  
Truck Drivers ◽  
The Other ◽  
Continuity Hypothesis ◽  
Future Studies ◽  
Daytime Activity ◽  
Close Relationship ◽  
The One ◽  
Dream Emotions ◽  
The Relationship

Empirical studies largely support the continuity hypothesis of dreaming. The present study investigated the frequency and emotional tone of dreams of truck drivers. On the one hand, the findings of the present study partly support the continuity regarding the time spent with driving/being in the truck and driving dreams and, on the other hand, a close relationship was found between daytime mood (feelings of stress, job satisfaction) and dream emotions, i.e., different dream characteristics were affected by different aspects of daytime activity. The results, thus, indicate that it is necessary to define very clearly how this continuity is to be conceptualized. The approach of formulating a mathematical model (cf. [1]) should be adopted in future studies in order to specify the factors and their magnitude in the relationship between waking and dreaming.

Never saw one – first-person null subjects in spoken English1

2016 ◽  
Vol 22 (01) ◽  
pp. 1-34 ◽  
Author(s):  
SUSANNE WAGNER
Keyword(s):  
Cognitive Linguistics ◽  
First Language ◽  
First Person ◽  
Null Subjects ◽  
Language Variation And Change ◽  
Future Studies ◽  
Verb Phrase ◽  
The One ◽  
Colloquial Speech

While null subjects are a well-researched phenomenon in pro-drop languages like Italian or Spanish, they have not received much attention in non-pro-drop languages such as English, where they are traditionally associated with particular (written) genres such as diaries or are discussed under a broader umbrella term such as situational ellipsis. However, examples such as the one in the title – while certainly not frequent – are commonly encountered in colloquial speech, with first-person singular tokens outnumbering any other person.This article investigates the linguistic and non-linguistic factors influencing the (non-) realisation of first-person singular subjects in a corpus of colloquial English. The variables found to contribute to the observed variation are drawn from a variety of linguistic domains and follow up on research conducted in such different fields as first language acquisition (FLA), cognitive linguistics, discourse analysis, sociolinguistics and language variation and change. Of particular interest is the finding regarding the link between null subjects and complexity of the verb phrase, which patterns in a clearly linear fashion: the more complex the verb phrase, the more likely is a null realisation. Not discussed in this form before, this finding, given its high significance and its robustness in light of alternative coding, may prove to be an important candidate for inclusion in future studies on (English) null subjects.

scholarly journals Readability as a measure of textual complexity: determinants and evidence in Brazilian companies

2021 ◽  
Author(s):  
João Antônio Salvador de Souza ◽  
José Alonso Borba
Keyword(s):  
Stock Market ◽  
Econometric Model ◽  
Textual Information ◽  
Future Studies ◽  
Accounting Research ◽  
Dummy Variable ◽  
Econometric Evidence ◽  
The One ◽  
Positive Results ◽  
Management Report

ABSTRACT The aim of this article was to evaluate the effect of company earnings and of harmonization with IFRS on the readability of Management Reports in the Brazilian stock market. There is a gap to be filled both in the elaboration and adaptation of readability measures to the context studied, as the studies tend to replicate the original formulas, and in identifying the determinants of the readability of Brazilian company reports, as the research in this field remains in its infancy and the results are inconclusive. The results provide indications for investors to identify complex textual information and may help public policymakers to establish a simple writing manual, along the lines of the SEC’s 1998 Plain English Handbook. The modified metrics and the one developed overcome the criticisms regarding the use of readability formulas in accounting research and could be used in substitution of the original metrics in future studies. An econometric model was used that presents the determinants of readability. Readability was calculated for the Results Analysis section of the Management Report. The resulting construct is understood via three attributes: persistence, current performance, and the reference benchmark. Harmonization with IFRS is a dummy variable, which delimits the pre- and post-IFRS periods. The hypotheses were tested in a sample of Brazilian companies made up of 714 company-year observations covering the period from 2006 to 2019. The descriptive results show that there is an apparent improvement in the readability of the reports in the pre- and post-IFRS period comparison. The econometric evidence shows that, in general, companies with persistent and positive earnings present less complex reports and are more likely to have highly readable reports, because managers publish reports with better readability to signal positive results to the market.

scholarly journals The earlier, the better or the worse? Towards accurate management of patients with arthralgia at risk for RA

2020 ◽  
Vol 79 (3) ◽  
pp. 312-315 ◽  
Author(s):  
Annette van der Helm-van Mil ◽  
Robert B M Landewé
Keyword(s):  
Daily Practice ◽  
Long Term Results ◽  
Current Status ◽  
Controlled Trials ◽  
Future Studies ◽  
Clinical Arthritis ◽  
The One ◽  
Firm Evidence ◽  
Early Phases

The favourable long-term results of early treatment in patients with classified rheumatoid arthritis have resulted in an increasing interest in the diseases phases preceding clinical arthritis. The hypothesis to test is that an intervention in these early phases may better prevent or reduce disease persistence than an intervention when arthritis has become clinically manifest. While several placebo-controlled trials are still ongoing, to date there is no firm evidence that this hypothesis truly holds. Therefore, it is important to reflect on the current status of arthralgia preceding clinical arthritis. Inherent to every new field of research, attitudes are conflicting, with opinions propagating innovation (based on the fear of undertreatment) on the one hand, and critical sounds pleading for more restraint (fear of overtreatment) on the other hand. In this Viewpoint, we will examine these divergent opinions, relate them to a preferred ultimate scenario and provide considerations for future studies and daily practice.

scholarly journals S-wave kaon–nucleon potentials with all-to-all propagators in the HAL QCD method

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Kotaro Murakami ◽  
◽  
Yutaro Akahoshi ◽  
Sinya Aoki
Keyword(s):  
Lattice Qcd ◽  
Pion Mass ◽  
Phase Shifts ◽  
Quark Propagator ◽  
Repulsive Interaction ◽  
S Wave ◽  
Experimental Phase ◽  
Future Studies ◽  
Zero Momentum ◽  
The One

Abstract Employing an all-to-all quark propagator technique, we investigate kaon–nucleon interactions in lattice QCD. We calculate the S-wave kaon–nucleon potentials at the leading order in the derivative expansion in the time-dependent HAL QCD method, using (2+1)-flavor gauge configurations on $32^3 \times 64$ lattices with lattice spacing $a \approx 0.09$ fm and pion mass $m_{\pi} \approx 570$ MeV. We take the one-end trick for all-to-all propagators, which allows us to put the zero-momentum hadron operators at both source and sink and to smear quark operators at the source. We find a stronger repulsive interaction in the $I=1$ channel than in the $I=0$. The phase shifts obtained by solving the Schrödinger equations with the potentials qualitatively reproduce the energy dependence of the experimental phase shifts, and have similar behavior to previous results from lattice QCD without all-to-all propagators. Our study demonstrates that the all-to-all quark propagator technique with the one-end trick is useful for studying interactions in meson–baryon systems in the HAL QCD method, so we will apply it to meson–baryon systems which contain quark–antiquark creation/annihilation processes in our future studies.

Mycorrhizae of Abies concolor in California

1977 ◽  
Vol 55 (10) ◽  
pp. 1345-1350 ◽  
Author(s):  
Isabel F. Alvarez ◽  
Fields W. Cobb Jr.
Keyword(s):  
Sierra Nevada ◽  
Mycorrhizal Fungi ◽  
Abies Concolor ◽  
North Central ◽  
Chemical Reagents ◽  
The North ◽  
Naturally Occurring ◽  
White Fir ◽  
Different Types ◽  
Cenococcum Graniforme

Nine different types of mycorrhizae were observed on naturally occurring white fir seedlings in the north central Sierra Nevada, including one formed by the ubiquitous Cenococcum graniforme. The macro- and micro-scopic characteristics and reactions to different chemical reagents are described for five types. Possible mycorrhizal fungi of white fir are listed. Nursery-grown seedlings examined were ectomycorrhizal; intracellular penetration was not observed. None of the naturally occurring mycorrhizal types were found on nursery seedlings.

scholarly journals Warehouse design: a systematic literature review

2017 ◽  
Vol 14 (4) ◽  
pp. 542 ◽  
Author(s):  
Augusto Da Cunha Reis ◽  
Cristina Gomes de Souza ◽  
Nayara Nogueira da Costa ◽  
Gustavo Henrique Cordeiro Stender ◽  
Pedro Senna Vieira ◽  
...  
Keyword(s):  
Rapid Identification ◽  
Qualitative Approach ◽  
Three Dimensions ◽  
Review Of The Literature ◽  
Future Studies ◽  
Academic Literature ◽  
Design And Implementation ◽  
Warehouse Design ◽  
The One ◽  
Initial Research

Abstract: This study proposes improving the understanding of the main aspects involved in the design of warehouses by the construction of a framework that reveals the state-of-art.  The initial research bibliography generated a framework, which was structured in three dimensions: inputs; design and implementation; and outputs. The validation of framework was accomplished through a systematic review of the literature, covering 68 articles published in the period 1999- 2015. This study covered the main aspects highlighted in the academic literature that influence the design of warehouses. Additionally, an overview of the publications based on a theoretical/empirical and a quantitative/qualitative approach was pointed out. This paper aims to contribute to both industry and academic. On the one hand, the framework aggregates value for professionals by permitting the rapid identification of variables, which must be considered in warehouse design. On the other hand, by systematizing the warehouse design area, researchers are able to identify gaps that may generate future studies. 

scholarly journals Estimación de varianzas genéticas en maíz a partir de líneas S1 y S2

2016 ◽  
Vol 3 ◽  
pp. 9
Author(s):  
Félix V. Navarro ◽  
Wayne C. Youngquis ◽  
William Compton
Keyword(s):  
Genetic Variability ◽  
Inverse Method ◽  
Generalized Inverse ◽  
Selection Effect ◽  
Wide Sense ◽  
Family Selection ◽  
Additive Variance ◽  
Selection Cycle ◽  
The One ◽  
Generalized Inverse Method

The analysis of lines S-l and S-2 and the regression of the measurements of the S-2 on their corresponding S-l were used to estimate the existing genetic variability in a Nebraska Stiff Stalk Synthetic (NSS) corn population at two localities, Mead and Lincoln, Nebraska-USA. A significant genetic variability was found in NSS for grain yield, days to blooming, ear and plant height, grain humidity and lodging percentage. The S-2 lines showed more frequent interaction of genotypes x environment than their S-l. In the wide sense, the heritability for the yield calculated by the analysis of variance of S-2 lines was larger than the one based on the regression of the S-2 on S-l (60 and 42%, respectively). Eight models, originated from Cockerham (1983), were used to identify the existing types of genetic variabilities. The inverse matrix method was used to estimate the parameters of genetic variability when the used co-variances gave a non-singular square matrix. The generalized inverse method o Moore-Penrose was used when the models showed a rectangular matrix. Usually, the best model was the one which estimated the additive variance only. Often times, no consistent covariance estimates were obtained among additive and dominant homocygotic (D-1) effects. For it, we could not infer to what the S-l family selection effect could be on the behavior of the resulting line crosses. The expected genetic gain per selection cycle for yield of S-2 families was 11.4%.

scholarly journals Classification and categorization of Brazilian agricultural startups (Agtechs)

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Paulo Henrique Bertucci Ramos ◽  
Marcelo Caldeira Pedroso
Keyword(s):  
Design Methodology ◽  
Classification Systems ◽  
New Classification ◽  
Thinking Aloud ◽  
Content Type ◽  
Future Studies ◽  
The Subject ◽  
The One ◽  
Practical Implications ◽  
Categorization Model

Purpose This paper aims to identify and analyze the agtech classification and categorization systems in the Brazilian context. Design/methodology/approach The systematic literature review (SLR) was carried out according to the protocol of Kitchenham and Charters (2007). The classification systems found in literature were evaluated using the thinking aloud protocol, as proposed by Ericsson and Simon (1993). The responses obtained were evaluated through lexicographic analysis, described by Bécue-Bertaut (2019) and content analysis, described by Bardin (2011). Findings SLR identified four agtech classification systems. The model proposed by Dias, Jardim, and Sakuda (2019) was the one with the highest adherence to classify Brazilian agtechs. From the analysis of the systems found in literature, the authors proposed a new categorization model of agricultural startups (agtechs). Research limitations/implications The study has limitations in relation to the theoretical and empirical validation of the model proposed by the authors. This limitation can be the subject of subsequent research. Practical implications The SLR study considers the evolution of the classification systems of a new agribusiness reality, the agtechs. In addition, there is a practical contribution in proposing a new classification system that attempts to address some of the limitations found in previous studies. Originality/value Agtechs are startups focused on developing solutions for agriculture and have shown a significant increase in recent years. However, there are few studies focused on this type of company. Even rarer are the studies that seek to classify and categorize them. The present work opens the horizon for future studies focused on this new reality.

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