Dynamics Of Australian Dairy-Food Supply Chain: Strategic Options For Participants In A Deregulated Environment

Following deregulation, participants in Australian dairy-food supply chains are confronted with a more complex and rapidly changing environment. In a study conducted between March 2002 and April 2003, major supermarkets emerged as the dominant power in chain development, with a trend towards greater interdependence and coordination between the chain participants. Future supply chain development will depend on the capabilities of the chain participants in operational and strategic management within the firm, and also in successfully negotiating linkages within the chains. In addition the organizational structures of both the firms and the chains need to be responsive to changing end-user needs and the dynamic business environment

Peripheral nerve morphology and intraneural blood flow in chronic kidney disease with and without diabetes

Introduction/Aims: Sonographic alterations of peripheral nerves in pre-dialytic kidney disease are yet to be determined. We aimed to assess peripheral nerve cross-sectional area (CSA) and intraneural blood flow in patients with pre-dialytic chronic kidney disease (CKD) and diabetic kidney disease (DKD). Methods: Subjects with CKD (n = 20) or DKD (n = 20) underwent ultrasound to assess CSA of the median and tibial nerves as well as intraneural blood flow of the median nerve. Blood flow was quantified using maximum perfusion intensity. Neuropathy was assessed using the Total Neuropathy Score. A 6-m timed walk test was also performed. Healthy controls (n = 28) were recruited for comparison. Results: The DKD group had more severe neuropathy (p =.024), larger tibial nerve CSA (p =.002) and greater median nerve blood flow than the CKD group (p =.023). Blood flow correlated with serum potassium in disease groups (r = 0.652, p =.022). Disease groups had larger tibial nerve CSA than controls (p <.05). No blood flow was detected in controls. Tibial nerve enlargement was associated with slower maximal walking speeds in disease groups (r = −0.389, p =.021). Discussion: Subjects with DKD demonstrated enlarged tibial nerve CSA and increased median nerve blood flow compared to those with CKD. Elevations in serum potassium were associated with increased blood flow. Sonographic alterations were detectable in pre-dialytic kidney disease compared to controls, highlighting the utility of ultrasound in the assessment of nerve pathology in these patient groups

Global sustainable city-regions: Stockholm, Berlin, Kolkata, Abu Dhabi/Masdar, Bengaluru, Malawi, Belfast, Hong Kong, Seoul, Helsinki, & Scotland

This policy report, entitled ‘Global Sustainable City-Regions,’ covers the work developed by the lecturer, Dr Igor Calzada, MBA, FeRSA, as the editor of the publica- tion and students of the second edition of the Master course MSc in Leadership for Global Sustainable Cities from September to December 2016. Specifically, this policy report follows a two-sequential-module structure: • The first module, entitled ‘Global Cities: Sustainability and Society,’ consists of six methodological units. • Thereafter, the second module, entitled ‘Public Policy, Governance and Strategic Change in Cities,’ consists of five methodological units. The policy report focuses on three urban global issues in a comparative basis. The MSc was developed in a team-based dynamic by applying qualitative action research methodologies to understand and interpret each case and to benchmark and contrast with other cases that addressed the same global urban issue. The cases were selected jointly by the lecturer and the students in a dynamic process in order to achieve a suitable selection of cases that would allow them to: • arrange groups around one specific global urban issue, • compare cases around the same specific urban issue, and • produce a full case study by applying the two-sequential-module methodology. • Transformative Smart Cities: In recent years, the smart city paradigm has gained traction in urban policy and governance. Underlying the smart city discourse is the techno-utopian belief that the use of information and communication technologies (ICTs) is imperative to confront the challenges of urbanization and sustainable development. Although, little has been researched about the differences between this paradigm and its consequences in the Global South and in the Global North. In addition to this, since the smart city as a buzzword has conquered policy agendas worldwide, a transformational push is occurring in some innovative cities and regions worldwide. This urban issue called ‘Transformative Smart Cities’ is explained comparatively through five cases as follows: Stockholm, Kolkata, Masdar, Bengaluru, and Seoul. • Changing Social Innovation: Urban issues are usually complex and interconnected phenomena. Poverty, political conflicts, environmental awareness, mobility and transport mechanisms, geopolitical path-dependence, ethno-political unrest, digital connectivity and self-determination could be researched from the social innovation changing perspective. The capacity to think across and between as well as within the thematic factors is crucial. Likewise, a clear understanding of the way in which different disciplines can contribute to a step change in delivery against these changing challenges is therefore required. Ultimately, an awareness of the underlying factors and contexts (including social, political, economic, cultural, technological and historial), interdependencies, synergies, tensions and trade-offs that promote, obstruct or even reverse delivery against social innovation, both individually and collectively are key to understand changing dynamics in city-regions. This urban issue called ‘Changing Social Innovation’ is explained comparatively through six cases as follows: Berlin, Belfast, Malawi, Hong Kong, Helsinki, and Glasgow

Global sustainable city-regions: Stockholm, Berlin, Kolkata, Abu Dhabi/Masdar, Bengaluru, Malawi, Belfast, Hong Kong, Seoul, Helsinki, & Scotland

This policy report, entitled ‘Global Sustainable City-Regions,’ covers the work developed by the lecturer, Dr Igor Calzada, MBA, FeRSA, as the editor of the publica- tion and students of the second edition of the Master course MSc in Leadership for Global Sustainable Cities from September to December 2016. Specifically, this policy report follows a two-sequential-module structure: • The first module, entitled ‘Global Cities: Sustainability and Society,’ consists of six methodological units. • Thereafter, the second module, entitled ‘Public Policy, Governance and Strategic Change in Cities,’ consists of five methodological units. The policy report focuses on three urban global issues in a comparative basis. The MSc was developed in a team-based dynamic by applying qualitative action research methodologies to understand and interpret each case and to benchmark and contrast with other cases that addressed the same global urban issue. The cases were selected jointly by the lecturer and the students in a dynamic process in order to achieve a suitable selection of cases that would allow them to: • arrange groups around one specific global urban issue, • compare cases around the same specific urban issue, and • produce a full case study by applying the two-sequential-module methodology. • Transformative Smart Cities: In recent years, the smart city paradigm has gained traction in urban policy and governance. Underlying the smart city discourse is the techno-utopian belief that the use of information and communication technologies (ICTs) is imperative to confront the challenges of urbanization and sustainable development. Although, little has been researched about the differences between this paradigm and its consequences in the Global South and in the Global North. In addition to this, since the smart city as a buzzword has conquered policy agendas worldwide, a transformational push is occurring in some innovative cities and regions worldwide. This urban issue called ‘Transformative Smart Cities’ is explained comparatively through five cases as follows: Stockholm, Kolkata, Masdar, Bengaluru, and Seoul. • Changing Social Innovation: Urban issues are usually complex and interconnected phenomena. Poverty, political conflicts, environmental awareness, mobility and transport mechanisms, geopolitical path-dependence, ethno-political unrest, digital connectivity and self-determination could be researched from the social innovation changing perspective. The capacity to think across and between as well as within the thematic factors is crucial. Likewise, a clear understanding of the way in which different disciplines can contribute to a step change in delivery against these changing challenges is therefore required. Ultimately, an awareness of the underlying factors and contexts (including social, political, economic, cultural, technological and historial), interdependencies, synergies, tensions and trade-offs that promote, obstruct or even reverse delivery against social innovation, both individually and collectively are key to understand changing dynamics in city-regions. This urban issue called ‘Changing Social Innovation’ is explained comparatively through six cases as follows: Berlin, Belfast, Malawi, Hong Kong, Helsinki, and Glasgow

Plasmodium falciparum heterochromatin protein 1 binds to tri-methylated histone 3 lysine 9 and is linked to mutually exclusive expression of var genes

Increasing experimental evidence shows a prominent role of histone modifications in the coordinated control of gene expression in the human malaria parasite Plasmodium falciparum. The search for the histone-mark-reading machinery that translates histone modifications into biological processes, such as formation of heterochromatin and antigenic variation is of foremost importance. In this work, we identified the first member of a histone modification specific recognition protein, an orthologue of heterochromatin protein 1 (PfHP1). Analysis of the PfHP1 amino-acid sequence revealed the presence of the two characteristic HP1 domains: a chromodomain (CD) and a chromo shadow domain (CSD). Recombinant CD binds to di- and tri-methylated lysine 9 from histone H3, but not to unmodified or methylated histone H3 in lysine 4. PfHP1 is able to interact with itself to form dimers, underlying its potential role in aggregating nucleosomes to form heterochromatin. Antibodies raised against PfHP1 detect this molecule in foci at the perinuclear region. ChIP analysis using anti-PfHP1 shows that this protein is linked to heterochromatin of subtelomeric non-coding repeat regions and monoallelic expression of the major virulence var gene family. This is the first report implicating an HP1 protein in the control of antigenic variation of a protozoan parasite

Mitochondrial Associated Ubiquitin Fold Modifier-1 Mediated Protein Conjugation in Leishmania donovani

In this report, we demonstrate the existence of the ubiquitin fold modifier-1 (Ufm1) and its conjugation pathway in trypanosomatid parasite Leishmania donovani. LdUfm1 is activated by E1-like enzyme LdUba5. LdUfc1 (E2) specifically interacted with LdUfm1 and LdUba5 to conjugate LdUfm1 to proteinaceous targets. Mass spectrometry analysis revealed that LdUfm1 is conjugated to Leishmania protein targets that are associated with mitochondria. Immunofluorescence experiments showed that Leishmania Ufm1, Uba5 and Ufc1 are associated with the mitochondria. The demonstration that all the components of this system as well as the substrates are associated with mitochondrion suggests it may have physiological roles not yet described in any other organism. Overexpression of a non-conjugatable form of LdUfm1 and an active site mutant of LdUba5 resulted in reduced survival of Leishmania in the macrophage. Since mitochondrial activities are developmentally regulated in the life cycle of trypanosomatids, Ufm1 mediated modifications of mitochondrial proteins may be important in such regulation. Thus, Ufm1 conjugation pathway in Leishmania could be explored as a potential drug target in the control of Leishmaniasis

Molecular mechanisms of glucocorticoids action: implications for treatment of rhinosinusitis and nasal polyposis

Intra-nasal glucocorticoids are the most effective drugs available for rhinosinusitis and nasal polyposis treatment. Their effectiveness depends on many factors and not all of them have been well recognized so far. The authors present the basic information on molecular mechanisms of glucocorticoid action, direct and indirect effects of glucocorticoids on transcription of genes encoding inflammatory mediators. They focus on recently proved nongenomic mechanisms which appear quickly, from several seconds to minutes after glucocorticoid administration and discuss clinical implications resulting from this knowledge. Discovery of nongenomic glucocorticoid actions allows for better use of these drugs in clinical practice

Expression of P. falciparum var Genes Involves Exchange of the Histone Variant H2A.Z at the Promoter

Plasmodium falciparum employs antigenic variation to evade the human immune response by switching the expression of different variant surface antigens encoded by the var gene family. Epigenetic mechanisms including histone modifications and sub-nuclear compartmentalization contribute to transcriptional regulation in the malaria parasite, in particular to control antigenic variation. Another mechanism of epigenetic control is the exchange of canonical histones with alternative variants to generate functionally specialized chromatin domains. Here we demonstrate that the alternative histone PfH2A.Z is associated with the epigenetic regulation of var genes. In many eukaryotic organisms the histone variant H2A.Z mediates an open chromatin structure at promoters and facilitates diverse levels of regulation, including transcriptional activation. Throughout the asexual, intraerythrocytic lifecycle of P. falciparum we found that the P. falciparum ortholog of H2A.Z (PfH2A.Z) colocalizes with histone modifications that are characteristic of transcriptionally-permissive euchromatin, but not with markers of heterochromatin. Consistent with this finding, antibodies to PfH2A.Z co-precipitate the permissive modification H3K4me3. By chromatin-immunoprecipitation we show that PfH2A.Z is enriched in nucleosomes around the transcription start site (TSS) in both transcriptionally active and silent stage-specific genes. In var genes, however, PfH2A.Z is enriched at the TSS only during active transcription in ring stage parasites. Thus, in contrast to other genes, temporal var gene regulation involves histone variant exchange at promoter nucleosomes. Sir2 histone deacetylases are important for var gene silencing and their yeast ortholog antagonises H2A.Z function in subtelomeric yeast genes. In immature P. falciparum parasites lacking Sir2A or Sir2B high var transcription levels correlate with enrichment of PfH2A.Z at the TSS. As Sir2A knock out parasites mature the var genes are silenced, but PfH2A.Z remains enriched at the TSS of var genes; in contrast, PfH2A.Z is lost from the TSS of de-repressed var genes in mature Sir2B knock out parasites. This result indicates that PfH2A.Z occupancy at the active var promoter is antagonized by PfSir2A during the intraerythrocytic life cycle. We conclude that PfH2A.Z contributes to the nucleosome architecture at promoters and is regulated dynamically in active var genes