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1.
Data Brief ; 33: 106625, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33335964

RESUMEN

To preserve biodiversity and ecosystem services, company engagement is crucial. However, available data on manager views and perceptions regarding nature conservation in particular is rare. The presented survey data gives insights into current levels and forms of business commitments for nature conservation. The data contributes to understanding business attitudes towards voluntary conservation action and includes information about factors that influence their engagement. Moreover, the data informs about manager perceptions towards the concept of nature conservation credits and, as such, allows for an evaluation of a certified biodiversity and ecosystem services market. Importantly, the dataset contains essential company characteristics to put responses into greater context. The scope of the survey is limited to German companies from secondary and tertiary sectors. Companies were sampled through proportional stratified random sampling based on size and location. The data was collected through a self-administered online-survey, conducted in 2019. The database comprises responses of 747 companies that logged into the online system. The survey data were in part analysed through structural equation modelling for an investigation of factors that drive voluntary conservation commitments [1]. Related to this analysis, a subset of 618 companies is available that provided sufficiently completed questionnaires. Both datasets, i.e. the raw data as well as the first subset used for analysis, are hosted in the public repository Open Research Data of the Leibniz Centre for Agricultural Landscape Research (ZALF), Germany. The repository also stores all coding information as well as the questionnaire: https://www.doi.org/10.4228/ZALF.DK.149. The dataset can be used, for example, by researchers from the field of environmental business management and strategy.

2.
Mol Cell Endocrinol ; 444: 26-37, 2017 03 15.
Artículo en Inglés | MEDLINE | ID: mdl-28137614

RESUMEN

Theca cell-selective Pten mutation (tPtenMT) in mice resulted in increases in PDK1 and Akt phosphorylation, indicating an over-activation of PI3K signaling in the ovaries. These mice displayed elevated androgen levels, ovary enlargement, antral follicle accumulation, early fertility loss and increased expression of Lhcgr and genes that are crucial to androgenesis. These abnormalities were partially reversed by treatments of PI3K or Akt inhibitor. LH actions in Pten deficient theca cells were potentiated. The phosphorylation of Foxo1 was increased, while the binding of Foxo1 to forkhead response elements in the Lhcgr promoter was reduced in tPtenMT theca cells, implying a mechanism by which PI3K/Akt-induced upregulation of Lhcgr in theca cells might be mediated by reducing the inhibitory effect of Foxo1 on the Lhcgr promoter. The phenotype of tPtenMT females is reminiscent of human PCOS and suggests that dysregulated PI3K cascade in theca cells may be involved in certain types of PCOS pathogenesis.


Asunto(s)
Andrógenos/metabolismo , Eliminación de Gen , Ovario/fisiopatología , Fosfohidrolasa PTEN/genética , Células Tecales/metabolismo , Envejecimiento/metabolismo , Animales , Clorpropamida/análogos & derivados , Clorpropamida/farmacología , Femenino , Fertilidad , Proteína Forkhead Box O1/metabolismo , Regulación de la Expresión Génica/efectos de los fármacos , Hormona Luteinizante/farmacología , Masculino , Ratones Endogámicos C57BL , Ratones Mutantes , Modelos Biológicos , Ovario/efectos de los fármacos , Fosfohidrolasa PTEN/metabolismo , Fosforilación/efectos de los fármacos , Regiones Promotoras Genéticas/genética , Unión Proteica/efectos de los fármacos , Proteínas Serina-Treonina Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Piruvato Deshidrogenasa Quinasa Acetil-Transferidora , Receptores de HL/genética , Receptores de HL/metabolismo , Esteroides/biosíntesis , Testosterona/sangre , Células Tecales/efectos de los fármacos
3.
Artículo en Portugués | LILACS | ID: lil-737705

RESUMEN

The purpose of this study was to test for antioxidantand allelopathic activities in stem bark of Zanthoxylum rhoifolium Lam., Rutaceae, with the eventual aim of discovering biologically active substances. The plant material was subjected to ethanolic extraction and this extract was partitioned, yielding hexane, chloroform, ethyl acetate and hydroalcoholic fractions. Antioxidant activity was estimated by the reduction of phosphomolybdenum complex, of DPPH. and of thiobarbituric acid-reactive substances (TBARS). To detect allelopathy, the samples were tested, at four concentrations, on the germination and development of the radicle and hypocotyl of L. sativa seeds. The samples showed significant antioxidant activity against the reduction of the phosphomolybdenum complex, as compared to rutin, and reduction of TBARS, ascompared to BHT, as well as allelopathic activity, since they stimulated growth and seed germination. The chloroform and ethyl acetate fractions showed the best antioxidant potentials, with 204.17% and 127.11% compared to rutin, in the reduction of phosphomolybdenum complex, as did the crude ethanolic extract and hexane fraction, with 64.2% and 60.9% compared to BHT, in the TBARS method. In the allelopathic assay, the chloroform fraction stood out as the only sample that stimulated the growth of both the radicle and hypocotyl at most concentrations, ranging from 41 to 144%, while the ethyl acetate fraction achieved the greatest stimulus in this bioassay, increasing the growth of the hypocotyl by 274%. This is the first study that demonstrates the antioxidant and allelopathic activities of the species Z. rhoifolium...


Este trabalho teve como objetivo o estudo das atividades antioxidante e alelopática das cascas do caule de Zanthoxylum rhoifolium Lam., Rutaceae, de modo a conduzir à descoberta de substâncias biologicamente ativas. O material vegetal foi submetido à extração etanólica e este extrato foi fracionado obtendo as frações (hexano, clorofórmio, acetato de etila e hidroalcoólica). Para a avaliação da atividade antioxidante, empregaram-se os métodos de redução do complexo fosfomolibdênio, de redução do radical DPPH e das substâncias reativas ao acido tiobarbitúrico (TBARS). Quanto à alelopatia, as amostras foram testadas em quatro concentrações sobre a germinação e o desenvolvimento de radícula e hipocótilo das sementes de Lactuca sativa. As amostras evidenciaram atividade antioxidante significativa frente ao método de redução do complexo fosfomolibdênio quando comparada à rutina, e do TBARS quando comparado ao BHT, assim como a atividade alelopática, uma vez que estimularam tanto a germinação como o crescimento das sementes. A fração clorofórmica e acetato de etila demonstraram melhor potencial antioxidante com 204,17% e 127,11% em relação à rutina no método de formação do complexo fosfomolibdênio, e o extrato bruto e a fração hexano com 64,2% e 60,9%, em relação ao BHT, no método TBARS. No ensaio alelopático, destaca-se a fração clorofórmica, pois foi a única amostra que estimulou o crescimento do hipocótilo e radícula na maioria das concentrações, variando de 41 a 144%, e a fração acetato de etila que apresentou a maior porcentagem de estímulo nesse bioensaio, demonstrando estímulo de 274% do crescimento do hipocótilo. Este é o primeiro trabalho que demonstra a atividade antioxidante e alelopática de Z. rhoifolium...


Asunto(s)
Humanos , Antioxidantes , Extractos Vegetales/análisis , Zanthoxylum
4.
Biocell ; 32(1): 1-8, Apr. 2008. ilus
Artículo en Inglés | LILACS | ID: lil-541117

RESUMEN

Cellular and subcellular organization and distribution of actin filaments have been studied with various techniques. The use of fluorescence photo-oxidation combined with phalloidin conjugates with eosin has allowed the examination of the precise cellular and subcellular location of F-actin. Correlative fluorescence light microscopy and transmission electron microscopy studies of F-actin distribution are facilitated with this method for morphological and physiological studies. Because phalloidin-eosin is smaller than other markers, this method allows the analysis of the three-dimensional location of F-actin with high-resolution light microscopy, three-d serial sections reconstructions, and electron tomography. The combination of selective staining and three-dimensional reconstructions provide a valuable tool for revealing aspects of the synaptic morphology that are not available when conventional electron microscopy is used. By applying this selective staining technique and three-dimensional imaging, we uncovered the structural organization of actin in the postsynaptic densities in physiological and pathological conditions.


Asunto(s)
Humanos , Animales , Actinas/metabolismo , Eosina Amarillenta-(YS)/farmacología , Eosina Amarillenta-(YS)/metabolismo , Fotooxidación , Sistema Nervioso Central/metabolismo , Sistema Nervioso Central/ultraestructura , Coloración y Etiquetado/métodos , Colorantes Fluorescentes/farmacología , Faloidina/farmacología , Imagenología Tridimensional/métodos , Modelos Moleculares , Citoesqueleto de Actina/metabolismo , Citoesqueleto de Actina/ultraestructura , Microscopía Fluorescente/métodos , Oxidación-Reducción , Fotones
5.
Biocell ; 32(1): 1-8, Apr. 2008. ilus
Artículo en Inglés | BINACIS | ID: bin-127189

RESUMEN

Cellular and subcellular organization and distribution of actin filaments have been studied with various techniques. The use of fluorescence photo-oxidation combined with phalloidin conjugates with eosin has allowed the examination of the precise cellular and subcellular location of F-actin. Correlative fluorescence light microscopy and transmission electron microscopy studies of F-actin distribution are facilitated with this method for morphological and physiological studies. Because phalloidin-eosin is smaller than other markers, this method allows the analysis of the three-dimensional location of F-actin with high-resolution light microscopy, three-d serial sections reconstructions, and electron tomography. The combination of selective staining and three-dimensional reconstructions provide a valuable tool for revealing aspects of the synaptic morphology that are not available when conventional electron microscopy is used. By applying this selective staining technique and three-dimensional imaging, we uncovered the structural organization of actin in the postsynaptic densities in physiological and pathological conditions.(AU)


Asunto(s)
Humanos , Animales , Fotooxidación , Actinas/metabolismo , Sistema Nervioso Central/metabolismo , Sistema Nervioso Central/ultraestructura , Eosina Amarillenta-(YS)/metabolismo , Eosina Amarillenta-(YS)/farmacología , Colorantes Fluorescentes/farmacología , Imagenología Tridimensional/métodos , Citoesqueleto de Actina/metabolismo , Citoesqueleto de Actina/ultraestructura , Microscopía Fluorescente/métodos , Modelos Moleculares , Oxidación-Reducción , Faloidina/farmacología , Fotones , Coloración y Etiquetado/métodos
6.
J Appl Microbiol ; 104(1): 51-9, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17850321

RESUMEN

AIMS: This study assessed the value of a commercial alkaline solution of hop beta-acids (HBA) for prevention of microbial degradation of thick juice, a concentrated intermediate product in the production of beet sugar. METHODS AND RESULTS: The antimicrobial effect of different concentrations of HBA against microbial degradation of thick juice was tested in a pilot-scale storage experiment. Chemical, biochemical and microbial parameters were monitored during thick juice storage. Thick juice degradation, indicated as a decrease in pH, was generally accompanied by an increase in the count of fastidious bacteria (FB) on Columbia Agar with Sheep Blood (CAwSB), which were mainly identified as Tetragenococcus halophilus. Addition of HBA delayed juice acidification and the development of FB in a concentration-dependent manner. The susceptibility of FB to HBA was determined by plating degraded thick juice (FB > 10(5) CFU ml(-1) on CAwSB plates with different concentrations of HBA (0-160 ppm). None of the HBA concentrations tested reduced the number of FB colonies formed, but increasing HBA concentrations extended the lag time of colony formation. CONCLUSIONS: HBA produce no measurable bactericidal effect, but retard the development of FB in thick juice. Moreover, HBA do not prevent the thick juice from deteriorating, but significantly delay its degradation. SIGNIFICANCE AND IMPACT OF THE STUDY: These results indicate that adding a commercially available HBA formulation can prolong the storage life of thick juice in the sugar industry, although degradation cannot be eliminated. Future research will focus on the detailed characterization of FB consistently isolated from degraded thick juice and on determining their role in thick juice degradation.


Asunto(s)
Ácidos/farmacología , Conservación de Alimentos/métodos , Humulus , Microbiología Industrial/métodos , Extractos Vegetales/farmacología , Bacterias/efectos de los fármacos , Secuencia de Bases , Carbohidratos , Microbiología de Alimentos , Datos de Secuencia Molecular , Temperatura
8.
Phytopathology ; 93(10): 1292-300, 2003 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18944329

RESUMEN

ABSTRACT Composts can induce systemic resistance in plants to disease. Unfortunately, the degree of resistance induced seems highly variable and the basis for this effect is not understood. In this work, only 1 of 79 potting mixes prepared with different batches of mature, stabilized composts produced from several different types of solid wastes suppressed the severity of bacterial leaf spot of radish caused by Xanthomonas campestris pv. armoraciae compared with disease on plants produced in a nonamended sphagnum peat mix. An additional batch of compost-amended mix that had been inoculated with Trichoderma hamatum 382 (T(382)), which is known to induce systemic resistance in plants, also suppressed the disease. A total of 11 out of 538 rhizobacterial strains isolated from roots of radish seedlings grown in these two compostamended mixes that suppressed bacterial leaf spot were able to significantly suppress the severity of this disease when used as inoculum in the compost-amended mixes. The most effective strains were identified as Bacillus sp. based on partial sequencing of 16S rDNA. These strains were significantly less effective in reducing the severity of this disease than T(382). A combined inoculum consisting of T(382) and the most effective rhizobacterial Bacillus strain was less effective than T(382) alone. A drench applied to the potting mix with the systemic acquired resistance-inducing chemical acibenzolar-S-methyl was significantly more effective than T(382) in several, but not all tests. We conclude that systemic suppression of foliar diseases induced by compost amendments is a rare phenomenon. Furthermore, inoculation of compost-amended potting mixes with biocontrol agents such as T(382) that induce systemic resistance in plants can significantly increase the frequency of systemic disease control obtained with natural compost amendments.

9.
J Clin Psychol ; 57(7): 865-74, 2001 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-11406800

RESUMEN

Results from a Consumer Reports (CR) survey indicated that psychotherapy has proven to be quite effective and that longer-term therapy has been more effective than shorter-term therapy. Critiques of the methodology of this study have included the claim that (a) the self-selected sample was biased in favor of people who felt that they had benefited from psychotherapy, (b) the use of retrospective accounts led to a further positive bias, and (c) the validity of the outcome assessment was questionable. Supplemental data from other sources, including prospective data from a large sample of psychotherapy patients, are presented to augment the interpretation of the results of the CR study and to illustrate how some critiques of research results can be evaluated systematically.


Asunto(s)
Comportamiento del Consumidor , Trastornos Mentales/terapia , Psicoterapia/estadística & datos numéricos , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Estudios Retrospectivos , Encuestas y Cuestionarios , Resultado del Tratamiento
10.
Phytopathology ; 91(11): 1116-23, 2001 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-18943449

RESUMEN

ABSTRACT Potting mixes prepared with dark, highly decomposed Sphagnum peat, with light, less decomposed Sphagnum peat, or with composted pine bark, all three of which were colonized by indigenous microorganisms, failed to consistently suppress Rhizoctonia damping-off of radish or Rhizoctonia crown and root rot of poinsettia. Inoculation of these mixes with Chryseobacterium gleum (C(299)R(2)) and Trichoderma hamatum 382 (T(382)) significantly reduced the severity of both diseases in the composted pine bark mix in which both biocontrol agents maintained high populations over 90 days. These microorganisms were less effective against damping-off in the light and dark peat mixes, respectively, in which populations of C(299)R(2) declined. In contrast, crown and root rot, a disease that is severe late in the crop, was suppressed in all three types of mixes. High populations of T(382) in all three mixes late during the cropping cycle may have contributed to control of this disease.

11.
J Clin Psychol ; 55(2): 159-69; discussion 191-200, 1999 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-10100817

RESUMEN

Case studies involving the measurement of every plausibly causal variable and every important outcome variable and covering the widest possible range of cases in terms of these variables are the highest priority for psychotherapy research. Such case studies looked at together will give us the best initial understanding of what variables are probably causal and what treatments yield the best results for particular kinds of patients, therapists, and settings. The accumulation of such case studies will show us where we would benefit by doing comparative controlled experiments of distinct therapies or by employing optimum-seeking designs for a particular therapy. Collaboration by the practitioner community will be needed to do this. The truly difficult and necessary work of applied psychotherapy research still lies ahead of us, hardly touched.


Asunto(s)
Trastornos Mentales/terapia , Psicoterapia de Grupo/métodos , Análisis de Varianza , Humanos , Evaluación de Resultado en la Atención de Salud , Reproducibilidad de los Resultados , Proyectos de Investigación
13.
J Consult Clin Psychol ; 66(5): 838-45, 1998 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-9803703

RESUMEN

In the analysis of the impact of clinical interventions, the received wisdom has been that posttreatment scores, with pretreatment scores equated by random assignment or statistically partialed out, should be used to evaluate treatment outcomes. However, posttreatment scores are not generally more reliable than, nor equivalent to, change scores, even with pretreatment scores partialed out of both. Moreover, there are data-analytic methods that indicate how individual patients change, in terms of response curves over time, rather than indicate only how much groups change on the average. These methods take researchers back to the individual data that they ought to use for choosing the specific models of change to be used. To maximize relevance for clinical practice, the results of treatment research should always be reported at this most disaggregated or individual change level, as well as, when appropriate, at more aggregated statistical levels.


Asunto(s)
Interpretación Estadística de Datos , Evaluación de Procesos y Resultados en Atención de Salud/normas , Psicoterapia/normas , Proyectos de Investigación/normas , Humanos , Factores de Tiempo
14.
Clin Chem ; 42(9): 1561-5, 1996 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-8787731

RESUMEN

The lifeblood of a business is developing and commercializing new products with minimum cost and time and maximum quality. Implementation of a quality management system is often used to achieve these goals, and the ISO 9001 standard for a business quality system is rapidly becoming the model of choice. The existence of an ISO-compliant system is a key to meeting the forthcoming regulatory requirements in the European Union and the US Food and Drug Administrations's proposed good management practices. DuPont has demonstrated leadership in the achievement of ISO registration. I describe the path to these successful registrations along with key lessons from the experience. Elements of success are management commitment, adequate resources, education, communication, total organizational involvement, and auditing of system performance. For the system to flourish and provide benefits to the users, sufficient time must be allocated for the organization to change.


Asunto(s)
Industria Química/organización & administración , Comercio/organización & administración , Certificación , Control de Calidad , Estados Unidos , United States Food and Drug Administration
15.
Behav Modif ; 20(1): 116-32, 1996 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-8561769

RESUMEN

The present study attempts to extend recent research on the relation between hoarding and obsessive-compulsive experiences. In both college student and community samples, hoarding was associated with higher scores on the Yale-Brown Obsessive-Compulsive Scale (YBOCS). The relationship was stronger among the community sample, in which there was a greater range of compulsive symptoms and hoarding behavior. Hoarding was also associated with higher levels of general psychopathology as measured by the Brief Symptom Inventory but not by the Obsessive-Compulsive Personality Disorder subscale from the Millon Clinical Multiaxial Inventory-II or by a measure of ordinary risk taking. Among a sample of patients with obsessive-compulsive disorder (OCD), 31% reported hoarding obsessions and 26% reported hoarding compulsions on the YBOCS symptom checklist. These frequencies are similar to those found elsewhere and suggest that, although not as frequent as the classical symptoms of OCD, hoarding is a common symptom among OCD patients.


Asunto(s)
Trastorno Obsesivo Compulsivo/psicología , Adolescente , Adulto , Femenino , Humanos , Masculino , Trastorno Obsesivo Compulsivo/diagnóstico , Pruebas Psicológicas , Encuestas y Cuestionarios
16.
J Pers Assess ; 65(1): 158-68, 1995 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16367651

RESUMEN

The Yale-Brown Obsessive Compulsive Scale (YBOCS; Goodman, Price, Rasmussen, & Mazure, 1989a) is an interview-based rating scale measuring severity of obsessive compulsive disorder (OCD). Because it is independent of the number and type of OCD symptoms and minimizes confounding with other types of symptoms, it has become the "gold standard" for assessing the outcome of behavioral and pharmacological treatments. This study was designed to further validate the YBOCS in relation to self-report measures of obsessive compulsive phenomena in a nonclinical population. Among a group of 45 female college students, the three primary YBOCS measures (obsessions, compulsions, and total score) were internally consistent and correlated moderately to strongly with self-report measures of obsessive compulsive phenomena that have been used in previous research. The compulsive subscale of the YBOCS showed the lowest correlation with self-report measures sharing only 25% of the common variance. This measure is appropriate for use with nonclinical samples and may prove superior to other instruments for detecting the presence and severity of obsessive and compulsive symptoms.

17.
Behav Res Ther ; 31(4): 423-5, 1993 May.
Artículo en Inglés | MEDLINE | ID: mdl-8512543

RESUMEN

The relationship between superstitious beliefs and behaviors, and measures of obsessive-compulsive experiences was examined in this study. Both superstitious beliefs and superstitious behaviors were correlated with measures of compulsivity and obsessionality. Compulsive checking, but not compulsive cleaning (from the MOCI and the CAC-R) were correlated with superstitiousness. Both subscales from the Obsessional Thoughts Questionnaire were correlated with superstitiousness. The implications of these findings for the role of perceived control in obsessive-compulsive phenomena were discussed.


Asunto(s)
Conducta Compulsiva/psicología , Supersticiones , Adulto , Femenino , Humanos , Trastorno Obsesivo Compulsivo/diagnóstico , Trastorno Obsesivo Compulsivo/psicología , Inventario de Personalidad
19.
J Marital Fam Ther ; 15(4): 387-95, 1989 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21118467

RESUMEN

Research on family therapy training has produced very little data regarding the kinds of trainees that do best in family therapy training programs. This study attempts to provide some rough and preliminary data on that issue. One hundred and seventy trainees, drawn from seven different structural!strategic training experiences, were evaluated as to how much they learned by taking the Family Therapy Assessment Exercise pre- and posttraining. Their performance was correlated using a hierarchical regression analysis with a number of trainee variables such as amount of conjugal family experience, amount of experience doing family or individual therapy, or prior knowledge of family therapy. The results indicate that, as predicted, conjugal family experience was positively related, and prior knowledge was negatively related to performance. Prior experience doing individual therapy was also positively related to performance.

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