87,611 research outputs found
Selective Breeding in Organic Dairy Production
No full textOrganic dairy farming started to take off in the early 1990s, when the European Union laid down organic standards for animal production. Until now, however, only incidental steps have been taken towards organic breeding and organic farmers mainly use breeding stock from conventional breeding programmes. This thesis focuses on the possibilities for breeding in organic dairy farming.
This thesis starts with describing the basic backgrounds of organic dairy farming and the results of a study that was carried out in 1999-2000 on the vision on cattle breeding. The main conclusions are that breeding in organic dairy farming should be in line with the intensions of organic farming and that farmers need animals that fit to their extensive farming system.
This study is followed by describing the differences and the magnitude of genotype by environment interaction (G x E) between conventional and organic dairy production. There proved to be significant differences in levels of milk production, percentage of protein in the milk, milk cell count and fertility between Holstein heifers on organic or conventional farms. A fairly large impact of G x E was found indicating that organic dairy farmers might have difficulty with selecting the right animals from the conventional supply of breeding bulls. This effect may be caused by the lower uptake of energy by cows in organic agriculture.
After this a study into organic dairy farmers’ breeding aims in relation to their farm management was carried out in 2005. This study shows that, despite differences in farm management, organic farmers had more or less the same breeding aim and many farmers were already experimenting with breeds and crosses in a quest for the most suitable type of cow for their farm. There was, however, no relationship between the farm management system and the breed or cross used, which indicates that although farmers demand suitable animals, they do not know what type of cow this would be.
Based on the results of the different studies, three distinct options are formulated for breeding in organic dairy farming: (1) use of adapted conventional breeding, (2) a separate breeding programme and (3) a breeding system based on natural mating. The advantages and disadvantages of each of the three breeding options are described in relation to naturalness, technical breeding issues, societal concerns and costs and benefits. These illustrate the complexity of the breeding issue in both breeding-technology and social terms. Restricting the use of conventional breeding would effectively mean the rejection of a system with a long and successful history, and throw organic dairy breeding back on its own resources. It is concluded that ‘system innovations’ at multiple levels are needed to create new, sustainable breeding systems, stakeholders must join forces to stimulate the development towards appropriate breeding
Notulae ad Floram agaricinam neerlandicam — XXXVII. Notes on Agaricus section Arvenses
No full textNomenclatural and taxonomical notes are given on species of Agaricus section Arvenses, together with a key to the accepted species occurring in the Netherlands and adjacent regions. Two new combinations, Agaricus osecanus var. squarrosipes (Bon & Collin) Nauta and Agaricus urinascens var. excellens (F. Møller) Nauta are made. A new variety of Agaricus sylvicola, var. squarrosus Nauta, is described
Viable service systems and decision making in service management
No full textThis paper addresses decision making in the management of complex service systems,
highlighting the contribution of the viable systems approach as an interpretative and
governance methodology based on systems thinking.
In the last few decades, business management has undergone significant changes due to
rapid developments in markets. New competitive strategies and technologies have
stimulated global discussion about business models and tools (Ghoshal, 2005). The role of
relationships has become increasingly relevant in businesses, and researchers as well as
industries are shifting their focus to a service-oriented approach, moving from a paradigm
of product to one of service (IfM-IBM Cambridge SSME Report, 2008)
New professional competencies in Public Administration: Project Management and Sole Responsible Project Manager in the new Procurement Code
No full textIn recent years, businesses have undergone profound organizational changes driven by rapid societal shifts. This phenomenon has led to an increased demand for effective and efficient services, laying the groundwork for a new approach to Public Administration management. Nowadays, the challenge that Public Administration is facing is related to not only to the reconfigu-ration of its organizational models, but also to achieve the endowment in terms new professional competencies for personnel to ensure the delivery of services capable with the aim to create public value. In fact, [3] and [8] emphasize the importance of knowledge integration in an interdisciplinary research project. In addition, the importance of understanding organization-al structure and identifying knowledge integration problems is emphasized. Furthermore, interdisciplinarity, that is, collaboration between different disciplines, implies an increase in knowledge integration. In this context, new organizational models are emerging, necessitating the introduction, not as an option but as an imperative, of new professional roles and related competencies, such as the Sole Responsible Project Manager (SRPM). This contribution, starting with a reflection on the evolution of organizational models, aims to investigate the fundamental role played by Project Man-agement [4] and the role of SRPM, in redefining management dynamics within public administrations. Thus, it transitions from exploring the sci-entific literature to analyzing the Italian regulatory framework and the sig-nificance of standards UNI ISO 21502:2021 and UNI 11648:2022 as es-sential guidelines for the management of public projects. Specifically, it delves into the role of the SRPM and the importance of Project Management in addressing challenges and future prospects in the Italian public admin-istration
RF Circuit Design in Nanometer CMOS
No full textWith CMOS technology entering the nanometer regime, the design of analog and RF circuits is complicated by low supply voltages, very non-linear (and nonquadratic) devices and large 1/f noise. At the same time, circuits are required to operate over increasingly wide bandwidths to implement modern multi-band communication systems as these systems move toward software-defined radio. These trends in technology and system design call for a re-thinking of analog and RF circuit design in nanometer CMOS. Dr. Bram Nauta will discuss innovations intended to enable continued progress in spite of these challenges. These innovations include thermal noise canceling, poly-phase distortion canceling and 1/f noise reduction techniques applied to basic RF circuits
Il rapporto impresa-territorio tra efficienza locale, efficacia di contesto e sostenibilità ambientale
No full textIl contributo propone un modello di sviluppo del territorio come sistema dinamico di relazioni intersoggettive capace non
solo di garantire l’efficienza dei processi interni all’organizzazione sviluppata, ma anche di sviluppare risultati efficaci nel contesto
complessivo e un impatto sostenibile nell’ambiente più esteso.
Il lavoro è sviluppato sulla base dell’Approccio Sistemico Vitale (ASV) come metodologia di indagine dei fenomeni sociali e di governo delle organizzazioni.
Attraverso l’impiego di concetti quali ‘rilevanza’, ‘consonanza’ e risonanza’, l’approccio proposto conduce alla rappresentazione di un sistema territoriale vitale, capace di sopravvivere nel proprio contesto creando valore per i sovrasistemi di riferimento e determinando le condizioni per un equilibrio sostenibile.
Il contributo offre un framework teorico-concettuale, che potrà essere oggetto di studio attraverso casi applicativi, aprendo a opportunità di ulteriori analisi e verifiche empiriche.
Lo schema generale proposto è adottabile, congiuntamente ai modelli manageriali consolidati, tanto dall’attore istituzionale, che vede il territorio nel suo complesso come sistema vitale, quanto dall’attore imprenditoriale, che vede nel territorio un fertile contesto di azione dal quale trarre e al quale offrire opportunità di sviluppo in un intreccio armonico di finalità e in un’ottica condivisa di sostenibilità.
L’originalità del paper risiede nel proporre un modello di sintesi per uno sviluppo sinergico del territorio che catalizzi istanze aziendali, di contesto e ambientali, promuovendo la sostenibilità nei rapporti impresa-territorio
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Best Selected Paper 2012 Sinergie
No full textObiettivi. Il paper propone un modello di sviluppo del territorio come sistema dinamico di relazioni intersoggettive capace non
solo di garantire l’efficienza dei processi interni all’organizzazione sviluppata, ma anche di sviluppare risultati efficaci nel contesto
complessivo e un impatto sostenibile nell’ambiente più esteso.
Metodologia. Il contributo è sviluppato sulla base dell’Approccio Sistemico Vitale ( A S V ) come metodologia di indagine dei
fenomeni sociali e di governo delle organizzazioni.
Risultati. Attraverso l’impiego di concetti quali ‘rilevanza’, ‘consonanza’ e ‘risonanza’, l’approccio proposto conduce alla
rappresentazione di un sistema territoriale vitale, capace di sopravvivere nel proprio contesto creando valore per i sovrasistemi di
riferimento e determinando le condizioni per un equilibrio sostenibile.
Limiti della ricerca. Il paper offre un framework teorico-concettuale, che potrà essere oggetto di studio attraverso casi
applicativi, aprendo a opportunità di ulteriori analisi e verifiche empiriche.
Implicazioni pratiche. Lo schema generale proposto è adottabile, congiuntamente ai modelli manageriali consolidati, tanto
dall’attore istituzionale, che vede il territorio nel suo complesso come sistema vitale, quanto dall’attore imprenditoriale, che vede nel
territorio un fertile contesto di azione dal quale trarre e al quale offrire opportunità di sviluppo in un intreccio armonico di finalità e
in un’ottica condivisa di sostenibilità.
Originalità del lavoro. L’originalità del paper risiede nel proporre un modello di sintesi per uno sviluppo sinergico del
territorio che catalizzi istanze aziendali, di contesto e ambientali, promuovendo la sostenibilità nei rapporti impresa-territorio
La decostruzione della complessità
No full textIl volume La decostruzione della complessità è il risultato di un percorso di riflessione volto a sviluppare un’interpretazione della complessità utile
all’analisi delle dinamiche sociali, e basato su una rilettura, talvolta critica, della letteratura sul tema
- …
