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Fish Waste: From Problem to Valuable Resource
Following the growth of the global population and the subsequent rapid increase in urbanization and industrialization, the fisheries and aquaculture production has seen a massive increase driven mainly by the development of fishing technologies. Accordingly, a remarkable increase in the amount of fish waste has been produced around the world; it has been estimated that about two-thirds of the total amount of fish is discarded as waste, creating huge economic and environmental concerns. For this reason, the disposal and recycling of these wastes has become a key issue to be resolved. With the growing attention of the circular economy, the exploitation of underused or discarded marine material can represent a sustainable strategy for the realization of a circular bioeconomy, with the production of materials with high added value. In this study, we underline the enormous role that fish waste can have in the socio-economic sector. This review presents the different compounds with high commercial value obtained by fish byproducts, including collagen, enzymes, and bioactive peptides, and lists their possible applications in different fields.
Journal Article
Surgical stress and metabolic response after totally laparoscopic right colectomy
No clear consensus on the need to perform an intracorporeal anastomosis (IA) after laparoscopic right colectomy is currently available. One of the potential benefits of intracorporeal anastomosis may be a reduction in surgical stress. Herein, we evaluated the surgical stress response and the metabolic response in patients who underwent right colonic resection for colon cancer. Fifty-nine patients who underwent laparoscopic resection for right colon cancer were randomized to receive an intracorporeal or an extracorporeal anastomosis (EA). Data including demographics (age, sex, BMI and ASA score), pathological (AJCC tumour stage and tumour localization) and surgical results were recorded. Moreover, to determine the levels of the inflammatory response, mediators, such as C-reactive protein (CRP), tumour necrosis factor (TNF), interleukin 1β (IL-1β), IL-6, IL-10, and IL-13, were evaluated. Similarly, cortisol and insulin levels were evaluated as hormonal responses to surgical stress. We found that the proinflammatory mediator IL-6, CRP, TNF and IL-1β levels, were significantly reduced in IA compared to EA. Concurrently, an improved profile of the anti-inflammatory cytokines IL-10 and IL-13 was observed in the IA group. Relative to the hormone response to surgical stress, cortisol was increased in patients who underwent EA, while insulin was reduced in the EA group. Based on these results,
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urgical stress and metabolic response to IA justify advocating the adoption of a totally laparoscopic approach when performing a right colectomy for cancer.
This trial is registered on ClinicalTrials.gov (ID: NCT03422588).
Journal Article
Effect of Polymer Hydrophobicity in the Performance of Hybrid Gel Gas Sensors for E-Noses
Relative humidity (RH) is a common interferent in chemical gas sensors, influencing their baselines and sensitivity, which can limit the performance of e-nose systems. Tuning the composition of the sensing materials is a possible strategy to control the impact of RH in gas sensors. Hybrid gel materials used as gas sensors contain self-assembled droplets of ionic liquid and liquid crystal molecules encapsulated in a polymeric matrix. In this work, we assessed the effect of the matrix hydrophobic properties in the performance of hybrid gel materials for VOC sensing in humid conditions (50% RH). We used two different polymers, the hydrophobic PDMS and the hydrophilic bovine gelatin, as polymeric matrices in hybrid gel materials containing imidazolium-based ionic liquids, [BMIM][Cl] and [BMIM][DCA], and the thermotropic liquid crystal 5CB. Better accuracy of VOC prediction is obtained for the hybrid gels composed of a PDMS matrix combined with the [BMIM][Cl] ionic liquid, and the use of this hydrophobic matrix reduces the effect of humidity on the sensing performance when compared to the gelatin counterpart. VOCs interact with all the moieties of the hybrid gel multicomponent system; thus, VOC correct classification depends not only on the polymeric matrix used, but also on the IL selected, which seems to be key to achieve VOCs discrimination at 50% RH. Thus, hybrid gels’ tunable formulation offers the potential for designing complementary sensors for e-nose systems operable under different RH conditions.
Journal Article
Why human capital is important for organizations : people come first
\"Why Human Capital Is Important for Organizations is an innovative book that derives from the casual meeting of people, scholars, and practitioners who live and work in many different parts of the world. The 'fil rouge' among them is their interpretation of how human resource management actually works in the present organizational context. Concretely, this book encompasses eleven chapters dealing with some of the most important issues in the field of human resource management through the exploration of four key themes: drawing the scenario, the pivots of human capital, measuring human capital, and good practices from abroad\"-- Provided by publisher.
Book
Baroreflex Dysfunction
Baroreflexes play both an adaptive and a homeostatic role, maintaining blood pressure, heart rate, and blood volume within the normal range. Defects in baroreflexes have diverse manifestations and causes. The assessment and management of baroreflex dysfunction are reviewed.
Journal Article
Cyprus : its ancient cities, tombs, and temples : a narrative of researches and excavations during ten years' residence
Born in Italy, Luigi Palma di Cesnola (1832-1904) settled in the United States and fought for the North in the American Civil War, becoming a cavalry colonel. Appointed by Abraham Lincoln, he then served as consul to Cyprus from 1865 to 1877. As an amateur archaeologist, he directed excavations throughout the island. In this 1877 publication, including maps and illustrations, Cesnola gives a useful sketch of Cypriot history and contemporary customs in addition to providing an important record of his archaeological practices and discoveries. He covers a number of ancient settlements where significant finds were made, notably Paphos, Amathus and Kourion. Many of the uncovered artefacts were controversially removed from Cyprus and sold to New York's Metropolitan Museum of Art; Cesnola served as its first director. His brother Alessandro's Salaminia (1882), recording his own excavations and discoveries in Cyprus, is also reissued in this series.
Book
Plastic debris in the open ocean
There is a rising concern regarding the accumulation of floating plastic debris in the open ocean. However, the magnitude and the fate of this pollution are still open questions. Using data from the Malaspina 2010 circumnavigation, regional surveys, and previously published reports, we show a worldwide distribution of plastic on the surface of the open ocean, mostly accumulating in the convergence zones of each of the five subtropical gyres with comparable density. However, the global load of plastic on the open ocean surface was estimated to be on the order of tens of thousands of tons, far less than expected. Our observations of the size distribution of floating plastic debris point at important size-selective sinks removing millimeter-sized fragments of floating plastic on a large scale. This sink may involve a combination of fast nano-fragmentation of the microplastic into particles of microns or smaller, their transference to the ocean interior by food webs and ballasting processes, and processes yet to be discovered. Resolving the fate of the missing plastic debris is of fundamental importance to determine the nature and significance of the impacts of plastic pollution in the ocean.
Journal Article