8 research outputs found

    Specification of 5G networks for agricultural use cases using the example of harvesters operated by swarm robotics

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    Feeding the growing world population is a scientific and economic challenge. The target variables to be optimised are the yield that can be produced on a given area and the reduction of the resources used for this purpose. High-wage countries are faced with the problem that the use of personnel is a significant cost driver. Developing countries, on the other hand, usually operate on much smaller field sizes, so that the work in the field is still strongly characterised by manual labour. One solution to meet these challenges is the use of smaller autonomous harvesting robots. These can be networked into a swarm of machines to work even larger fields. The networking of autonomous agricultural machines is a key use case for rural 5G networks. 5G technology can offer many advantages over older mobile communications standards and therefore make use cases more efficient or enable new ones. Various use cases are also conceivable in the field of agriculture, yet it is unclear how 5G networks can and must be specified for this purpose. In this paper, using the example of 5G-connected harvesters powered by swarm robotics, we present the challenges that have arisen and the specification that has been developed

    A mother-child intervention program in adolescent mothers and their children to improve maternal sensitivity, child responsiveness and child development (the TeeMo study): study protocol for a randomized controlled trial

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    Background: Children of adolescent mothers present a high-risk group for child neglect and maltreatment. Previous findings suggest that early interventions can reduce maltreatment by improving the quality of mother-child interaction, particularly maternal sensitivity. The aim of the current study is to evaluate the effects of a mother-child intervention program using home visits and video-feedback regarding mother-child interaction (STEEP-b) plus psychiatric treatment of the mother in cases where mental illness is present compared with TAU (treatment as usual, that is, standardized support by the child welfare system) on enhancing maternal sensitivity and child responsiveness in adolescent, high-risk mothers. The second aim of the current project is to investigate behavioral and neural differences between adolescent and adult mothers at baseline and postintervention. Methods/Design: This is a randomized controlled trial (RCT) with 120 high-risk adolescent mothers (25 years) will additionally be recruited to investigate behavioral and neural differences between the adolescent and adult group. Blind assessments will take place at T1 (pre-intervention), at the end of the 9-month intervention (T2, postintervention) and 6 months postintervention (T3, follow-up). Moderators of treatment outcomes and sociodemographic data will be assessed at T1. The primary outcome hypothesis is that STEEP-b added to treatment as usual will improve maternal sensitivity and child responsiveness compared with treatment as usual alone in high-risk adolescent mothers. The primary hypothesis will be evaluated at the end of the 9-month follow-up assessment based on the intention-to-treat principle. The trial is funded by the German Ministry for Research and Education (BMBF). Data collection started in October 2012. Discussion: This is a randomized controlled trial that evaluates the effects of an early intervention program (STEEP-b) on the quality of mother-child interaction and child development in adolescent, high-risk mothers. Trial registration DRKS00004409 (27 September 2012

    Mit welchem Wort soll ich´s benennen? Eine lexikalische und korpusbasierte Analyse deutscher Verben

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    Verbs either describe factual activities relating to objects (e.g. to plant) or interpersonal activities (e.g. to praise). These interpersonal verbs can be subdivided in action verbs (e.g. to hit) and state verbs (e.g. to admire). For action verbs as well as for state verbs it can be differentiated, if they induce either causal attributions to the subject (e.g. to hit, to frighten) or to the object (e.g. to punish, to admire) of the interaction. Previous linguistic and psychological research has predominantly used identical vocabularies from a small section of the whole language repertoire. Furthermore a comprehensive systematisation of Germen verbs based on the classification described above is still missing. To assess frequency estimates of these verbtypes for the whole language, an integrating analysis of different corpora of German language is conducted for the first time. Data record included more than 10 000 verbs. Frequency analyses confirm a dominance of factual activities compared to interpersonal verbs and within interpersonal verbs a dominance of action verbs. The resulting corpus can be used for representative analyses of interpersonal verbs and attributional analyses of linguistic data.Verben beschreiben entweder sachbezogene Vorgänge (z.B. anpflanzen) oder interpersonale Ereignisse (z.B. loben). Diese interpersonalen Verben können in Handlungs- (z. B. schlagen) und Zustandsverben (z.B. bewundern) unterteilt werden. Sowohl für Handlungs- als auch für Zustandsverben kann unterschieden werden, ob sie Kausalattributionen auf das Subjekt (z.B. schlagen, ängstigen) oder auf das Objekt(bestrafen, bewundern) der Interaktion auslösen. Bisherige sprachpsychologische Untersuchungen haben überwiegend identische Vokabeln aus einem kleinen Ausschnitt des Gesamtvokabulars verwendet. Auch fehlt eine umfassende Systematisierung deutscher Verben hinsichtlich der dargestellten Klassifikation. Um erstmals Häufigkeitsangaben der Verbverteilungen der gesamten Sprache zu erhalten, wird eine Analyse unterschiedlicher deutscher Verb- und Textkorpora durchgeführt, aus der ein Datensatz mit insgesamt über 10 000 Verben resultiert. Häufigkeitsanalysen belegen eine Dominanz sachbezogener im Vergleich zu interpersonalen Verben und innerhalb interpersonaler Verben eine deutliche Überzahl von Handlungsverben. Der erstellte Korpus erlaubt sprachlich repräsentative Analysen interpersonaler Verben, Aussagen zur sprachlichen Repräsentation interpersonaler Ereignisse und attributionstheoretische Analysen sprachlicher Daten

    Experiences with surgical treatment of ventricle septal defect as a post infarction complication

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    <p>Abstract</p> <p>Background</p> <p>Complications of acute myocardial infarction (AMI) with mechanical defects are associated with poor prognosis. Surgical intervention is indicated for a majority of these patients. The goal of surgical intervention is to improve the systolic cardiac function and to achieve a hemodynamic stability. In this present study we reviewed the outcome of patients with post infarction ventricular septal defect (PVSD) who underwent cardiac surgery.</p> <p>Methods</p> <p>We analysed retrospectively the hospital records of 41 patients, whose ages range from 48 to 81, and underwent a surgical treatment between 1990 and 2005 because of PVSD.</p> <p>Results</p> <p>In 22 patients concomitant coronary artery bypass grafting (CAGB) was performed. In 15 patients a residual shunt was found, this required re-op in seven of them. The time interval from infarct to rupture was 8.7 days and from rupture to surgery was 23.1 days. Hospital mortality in PVSD group was 32%. The mortality of urgent repair within 3 days of intractable cardiogenic shock was 100%. The mortality of patients with an anterior VSD and a posterior VSD was 29.6% vs 42.8%, respectively. All patients who underwent the surgical repair later than day 36 survived.</p> <p>Conclusion</p> <p>Surgical intervention is indicated for a majority of patients with mechanical complications. Cardiogenic shock remains the most important factor that affects the early results. The surgical repair of PVSD should be performed 4–5 weeks after AMI. To improve surgical outcome and hemodynamics the choice of surgical technique and surgical timing as well as preoperative management should be tailored for each patient individually.</p

    Surgical management of secondary hyperparathyroidism in chronic kidney disease—a consensus report of the European Society of Endocrine Surgeons

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