Towards a sustainable biomass strategy: what we know and what we should know

The paper reviews the current knowledge on the use of biomass for non-food purposes, critically discusses its environmental sustainability implications, and describes the needs for further research, thus enabling a more balanced policy approach. The life-cylce wide impacts of the use of biomass for energy and material purposes derived from either direct crop harvest or residuals indicate that biomass based substitutes have a different, not always superior environmental performance than comparable fossil based products. Cascading use, i.e. when biomass is used for material products first and the energy content is recovered from the end-of-life products, tends to provide a higher environmental benefit than primary use as fuel. Due to limited global land resources, non-food biomass may only substitute for a certain share of non-renewables. If the demand for non-food biomass, especially fuel crops and its derivates, continues to grow this will inevitably lead to an expansion of global arable land at the expense of natural ecosystems such as savannas and tropical rain forests. Whereas the current aspirations and incentives to increase the use of non-food biomass are intended to counteract climate change and environmental degradation, they are thus bound to a high risk of problem shifting and may even lead to a global deterioration of the environment. Although the balanced approach of the European Union's biomass strategy may be deemed a good principle, the concrete targets and implementation measures in the Union and countries like Germany should be revisited. Likewise, countries like Brazil and Indonesia may revisit their strategies to use their natural resources for export or domestic purposes. Further research is needed to optimize the use of biomass within and between regions. -- Der Beitrag wertet die vorliegenden Erkenntnisse über den Einsatz von Non-Food Biomasse aus. Er diskutiert kritisch die damit verbundenen ökologischen Nachhaltigkeitswirkungen und beschreibt die Forschungsaufgaben, die gelöst werden müssen, um einen ausgewogeneren Politikansatz zu ermöglichen. Die lebenszyklusweiten Umweltbelastungen des energetischen und stofflichen Einsatzes von Biomasse als Roh- oder Reststoffe zeigen, dass Biomasse basierte Produkte andere, nicht immer bessere Umweltauswirkungen aufweisen als fossil basierte. Eine kaskadenförmige Nutzung, bei der Biomasse zunächst materiell für Ge- und Verbrauchsprodukte eingesetzt wird, deren Energiegehalt am Ende ihrer Einsatzphase genutzt wird, ist tendenziell mit einer höheren Umweltentlastung verbunden als der primär energetische Einsatz. Auf Grund der begrenzten globalen Landflächen kann Non-Food Biomasse nur einen gewissen Anteil an nichterneuerbaren Ressourcen ersetzen. Wenn die Nachfrage nach Non-Food Biomasse und ihren Derivaten, speziell nach Biokraftstoffen, weiter ansteigt, wird dies zwangsläufig zu einer Ausdehnung der globalen Ackerfläche zu Lasten von natürlichen Ökosystemen wie Savannen und tropischen Regenwäldern führen. Wenngleich die gegenwärtigen Hoffnungen und Anreize zum verstärkten Einsatz von Non-Food Biomasse darauf abzielen, dem Klimawandel entgegenzuwirken und die Umweltsituation zu verbessern, sind sie daher mit einem großen Risiko verbunden, Probleme zu verlagern und die globale Umweltsituation sogar noch zu verschlechtern. Obwohl der ausgewogene Ansatz der Biomassestrategie der Europäischen Union als ein gutes Prinzip gelten kann, so sollten die konkreten Ziele und Umsetzungsmaßnahmen in der Union und in Ländern wie Deutschland überprüft werden. In gleicher Weise mögen Länder wie Brasilien und Indonesien ihre Strategie zur Nutzung ihrer natürlichen Ressourcen für den Export oder im Inland überprüfen. Weitere Forschungsarbeiten sind nötig, um den Einsatz von Biomasse innerhalb und zwischen den Regionen zu optimieren.

Towards a sustainable biomass strategy : what we know and what we should know

The paper reviews the current knowledge on the use of biomass for non-food purposes, critically discusses its environmental sustainability implications, and describes the needs for further research, thus enabling a more balanced policy approach. The life-cylce wide impacts of the use of biomass for energy and material purposes derived from either direct crop harvest or residuals indicate that biomass based substitutes have a different, not always superior environmental performance than comparable fossil based products. Cascading use, i.e. when biomass is used for material products first and the energy content is recovered from the end-of-life products, tends to provide a higher environmental benefit than primary use as fuel. Due to limited global land resources, non-food biomass may only substitute for a certain share of non-renewables. If the demand for non-food biomass, especially fuel crops and its derivates, continues to grow this will inevitably lead to an expansion of global arable land at the expense of natural ecosystems such as savannas and tropical rain forests. Whereas the current aspirations and incentives to increase the use of non-food biomass are intended to counteract climate change and environmental degradation, they are thus bound to a high risk of problem shifting and may even lead to a global deterioration of the environment. Although the "balanced approach" of the European Union's biomass strategy may be deemed a good principle, the concrete targets and implementation measures in the Union and countries like Germany should be revisited. Likewise, countries like Brazil and Indonesia may revisit their strategies to use their natural resources for export or domestic purposes. Further research is needed to optimize the use of biomass within and between regions

Bebek süvari

Tercüman-ı Hakikat'te yayımlanan Bebek Süvari adlı romanın ilk ve son tefrikalarıTefrikada yazarın adı belirtilmemiştir.Tefrikanın Almancadan çevrildiği belirtilmiştir

Современные методы строительства резервуаров вертикальных стальных в условиях умеренно-холодного и холодного климата

В работе проанализированы современные методы строительство резервуаров вертикальных стальных в условиях умеренно-холодного и холодного климата. Рассмотрены современные методы оценки качества строительных работ. Применение современных теплоизоляционных материалов и методов антикоррозионной защиты.The paper analyzes modern methods of building vertical steel tanks in conditions of a moderately cold and cold climate. Modern methods for assessing the quality of construction work are considered. Application of modern heat-insulating materials and methods of anticorrosive protection

Совершенствование системы мотивации персонала на примере Общества с ограниченной ответственностью "Томторг" г. Томск

Объектом исследования является (ются)- предприятие малого бизнеса ООО "ТомТорг" Цель работы – рассмотреть систему мотивации персонала в ООО "ТомТорг" г.Томск и предложить рекомендации по ее совершенствованию. В процессе исследования проводились опрос и анкетирование. В результате исследования были разработаны несколько рекомендаций и мероприятий для совершенствования системы мотивации. Степень внедрения: Разработанные мероприятия внедрены и используются в деятельности ООО "ТомТорг" Область применения: разработанные мероприятия для мотивации персонала могут быть использованы на предприятии, в организации, фирме любой отрасли. Экономическая эффективность/значимость работы: эффективности и обоснованность разработанных рекомендаций экономически подтверждена.The object of the study is (are) - small business enterprise of LLC TomTorg The purpose of the work is to consider the system of staff motivation in TomTorg LLC in Tomsk and offer recommendations for its improvement. During the survey, a survey and questionnaire were conducted. As a result of the research, several recommendations and activities were developed to improve the motivation system. Degree of implementation: The developed measures are implemented and used in the activities of LLC TomTorg Scope: the developed measures for the motivation of personnel can be used at the enterprise, in the organization, in the firm of any industry. Economic efficiency / significance of the work: effectiveness and validity of the developed recommendations are economically confirmed

Kadınlar arasında

Safvet Nezihi'nin Resimli Roman Mecmuası'nda tefrika edilen Kadınlar Arasında adlı roman

Impact of age and comorbidities on health-related quality of life for patients with prostate cancer: evaluation before a curative treatment

<p>Abstract</p> <p>Background</p> <p>Interpretation of comparative health-related quality of life (HRQOL) studies following different prostate cancer treatments is often difficult due to differing patient ages. Furthermore, age-related changes can hardly be discriminated from therapy-related changes. The evaluation of age-and comorbidity-related changes was in focus of this study.</p> <p>Methods</p> <p>HRQOL of 528 prostate cancer patients was analysed using a validated questionnaire (Expanded Prostate Cancer Index Composite) before a curative treatment. Patients were divided into age groups ≤65, 6670, 7175 and >75 years. The impact of specific comorbidities and the Charlson Comorbidity Index (CCI) were evaluated. The questionnaire comprises 50 items concerning the urinary, bowel, sexual and hormonal domains for function and bother. For assessment of sexual and hormonal domains, only patients without prior hormonal treatment were included (n = 336).</p> <p>Results</p> <p>Urinary incontinence was observed increasingly with higher age (mean function scores of 92/88/85/87 for patients ≤65, 6670, 7175 and >75 years) complete urinary control in 78%/72%/64%/58% (p < 0.01). Sexual function scores decreased particularly (48/43/35/30), with erections sufficient for intercourse in 68%/50%/36%/32% (p < 0.01) a decrease of more than a third comparing patients ≤65 vs. 6670 (36%) and 6670 vs. 7175 years (39%). The percentage of patients with comorbidities was lowest in the youngest group (48% vs. 66%/68%/63% for ages 6670/7175/>75 years; p < 0.05). A multivariate analysis revealed an independent influence of both age and comorbidities on urinary incontinence, specifically diabetes on urinary bother, and both age and diabetes on sexual function/bother. Rectal domain scores were not significantly influenced by age or comorbidities. A CCI>5 particularly predisposed for lower urinary and sexual HRQOL scores.</p> <p>Conclusion</p> <p>Urinary continence and sexual function are the crucial HRQOL domains with age-related and independently comorbidity-related decreasing scores. The results need to be considered for the interpretation of comparative studies or longitudinal changes after a curative treatment.</p