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Recent simulation-based studies have indicated that load shifting using Economic Model Predictive Control (E-MPC) of radiators for residential space heating can be utilized for demand response purposes in energy systems. However, there is a lack of studies on whether this load shift potential can be realized in real, inhabited buildings. This paper reports on a field experiment aiming at realizing load shifting of space heating in a single-family house with a hydronic radiator system connected to the local district heating. Radiators in a limited number of ‘active’ rooms were controlled using set-point schedules mimicking the typical behavior of E-MPC. The results indicate that it was possible to load shift heating consumption in the ‘active’ rooms but that the load shift for the building as a whole was limited due to the hydronics of the radiator system. The paper also reports on the several practical issues encountered during the experiments – issues that in different ways are barriers to the practical realization of demand response from E-MPC of hydronic space heating systems.

Recent research has indicated a significant potential for providing demand response using Economic Model Predictive Control (E-MPC) of radiators in residential space heating systems. Previous studies indicate the need for distinct temperatures in different rooms, which would require an E-MPC with different temperature constraints across the dwelling. Studies on E-MPC concepts for this purpose often assume that it is possible to measure the heating power delivered to each room separately. However, this assumption is not valid in typical existing residential buildings heated by hydronic radiators; they only have one heat meter measuring the heating use of the entire housing unit. This study presents a simulation-based study of a novel dual-zone E-MPC scheme that relies on indoor air temperature measurements in individual rooms of the housing unit, and only one heat meter measuring the total heating use for space heating and domestic hot water. The results indicate that the proposed scheme has the same load shifting potential as an E-MPC using room-level heat metering. The proposed scheme thus reduces the additional hardware and data infrastructure needed for the practical realization of E-MPC of residential space heating systems for demand response purposes.

Obese women diagnosed with breast cancer have an increased risk for metastasis, and the underlying mechanisms are not well established. Within the mammary gland, adipose-derived stromal cells (ASCs) are heterogeneous cells with the capacity to differentiate into multiple mesenchymal lineages. To study the effects of obesity on ASCs, mice were fed a control diet (CD) or high-fat diet (HFD) to induce obesity, and ASCs were isolated from the mammary glands of lean and obese mice. We observed that obesity increased ASCs proliferation, decreased differentiation potential, and upregulated expression of α-smooth muscle actin, a marker of activated fibroblasts, compared to ASCs from lean mice. To determine how ASCs from obese mice impacted tumor growth, we mixed ASCs isolated from CD- or HFD-fed mice with mammary tumor cells and injected them into the mammary glands of lean mice. Tumor cells mixed with ASCs from obese mice grew significantly larger tumors and had increased invasion into surrounding adipose tissue than tumor cells mixed with control ASCs. ASCs from obese mice demonstrated enhanced tumor cell invasion in culture, a phenotype associated with increased expression of insulin-like growth factor-1 (IGF-1) and abrogated by IGF-1 neutralizing antibodies. Weight loss induced in obese mice significantly decreased expression of IGF-1 from ASCs and reduced the ability of the ASCs to induce an invasive phenotype. Together, these results suggest that obesity enhances local invasion of breast cancer cells through increased expression of IGF-1 by mammary ASCs, and weight loss may reverse this tumor-promoting phenotype.

The synthesis of a fully degradable, bio-based, sustained release, pro-antimicrobial polymer network comprised of degradable acetals (PANDA) is reported. The active antimicrobial agent - p-anisaldehyde (pA) (an extract from star anise) - was converted into a UV curable acetal containing pro-antimicrobial monomer and subsequently photopolymerized into a homogenous thiol-ene network. Under neutral to acidic conditions (pH 8), the PANDAs undergo surface erosion and exhibit sustained release of pA over 38 days. The release of pA from PANDAs was shown to be effective against both bacterial and fungal pathogens. From a combination of confocal microscopy and transmission electron microscopy, we observed that the released pA disrupts the cell membrane. Additionally, we demonstrated that PANDAs have minimal cytotoxicity towards both epithelial cells and macrophages. Although a model platform, these results point to promising pathways for the design of fully degradable sustained-release antimicrobial systems with potential applications in agriculture, pharmaceuticals, cosmetics, household/personal care, and food industries.With the increasing number of patients prescribed immunosuppressants coupled with the rise in antibiotic resistance - life-threatening microbial infections are a looming global threat. With limited success within the antibiotic pipeline, nature-based essential oils (EOs) are being investigated for their multimodal effectiveness against microbes. Despite the promising potential of EOs, difficulties in their encapsulation, limited water solubility, and high volatility limit their use. Various studies have shown that covalent attachment of these EO derivatives to polymers can mitigate these limitations. The current study presents the synthesis of a fully-degradable, sustained release, cytocompatible, pro-antimicrobial acetal network derived from p-anisaldehyde. This polymer network design provides a pathway toward application-specific EO releasing materials with quantitative encapsulation efficiencies, sustained release, and broad-spectrum antimicrobial activity.

Objective Rare genetic and non-genetic diseases are often associated with high risk of malnutrition[1]. The purpose of the study is to evaluated rare diseases among patients on Home Artificial Nutrition (HAN) and prescriptions registered at Local Health Care Unit Naples 3, Italy. Methods and procedures Data were collected from 231 patients (M=131; F=100) recorded in 2019 (1st January-31st December). Oral Nutritional Supplements (ONS), Enteral Nutrition (HEN), Parenteral Nutrition (HPN) were included; complications of pregnancy and childbirth were excluded. Results Adults were 182 (78.8%), Pediatrics 49 (21.2% ). Rare diseases of the nervous system were 177 (76.7%), congenital anomalies 25 (10.8%) and inborn errors of metabolism 8 (3%). Respiratory, hematologic, immunologic, and skin diseases, primitive glomerulopathies and intestinal disorders, rare tumors were found in fewer cases (9.1%). Amyotrophic Lateral Sclerosis was the most frequent diagnosis (43.3%; 94 ALS and 6 ALS-Juvenile). Spinal Muscolar Atrophy (SMA) was found in 23.8% of pediatrics, Progressive Supranuclear Palsy (PSP) and Duchenne Muscular Dystrophy (DMD) in 8.4% and 4.5% of adult patients. ONS were 123, mainly prescribed to adults (87%); HEN were 100, administered through Percutaneous Endoscopy Gastrostomy (86%) and nasogastric tube feeding (14%), HPN were only 9 prescriptions. Conclusion Nutritional impairment in patient with rare neurologic diseases is frequent. HAN could improve clinical management of symptoms worsening quality of life of patients. Further research is needed to evaluate the impact of nutritional intervention on individual clinical outcome[1].

Objective To compare resting energy expenditure (REE) measured by indirect calorimetry with REE predicted using different equations in obese adolescents. Study design We recruited 264 obese patients (body mass index ranging from 30.0-70.0 kg/m 2 ) between 14 and 18 years of age. Data were obtained comparing measured and predicted REE derived from published equations for normal weight and obese adolescents. The average differences between measured and predicted REE, as well as the accuracy at ±10% level, were evaluated. Results Evaluating the mean REE in 109 males (1938 ± 271 kcal/d) and 155 females (2569 ± 459 kcal/d), we found that the Lazzer equation in males had the smallest difference between measured and predicted REE; in females the Henry-1, Food and Agriculture Organization/World Health Organization/United Nations University, Schmelze, and Lazzer equations were the most accurate. The prediction accuracy was considered adequate within ±10%. Conclusions REE predictive equations developed in obese patients and for specific age groups are more suitable than those for the general population. Inaccuracy of predicted REE could affect dietary prescription appropriateness and, consequently, dietary compliance in this age group.

The three-dimensional structure of phosphoglycerate mutase has been analyzed using a contoured distance matrix and by visual inspection using three-dimensional computer graphics. Three folding lobes have been identified and their internal structure tentatively characterized. The active site is located at a lobe interface with a channel providing possible access from above and below. The arrangement of active site residues on two lobes suggests that the active site might be conformationally flexible. The remaining interface not associated with the active site channel appears to be predominately hydrophobic and thus may contribute to inter-lobe stability.

Broiler profit models were developed utilizing a matrix of feed conversion coefficients by weight interval and by energy level of the diet. The models maximized profit over feed costs allowing the energy level of the diet to be a variable. Gains in returns from profit models as compared to least cost per unit of feed criterion ranged from zero to $.011 per 1.724 kg bird depending on the feed ingredient price situation. The addition of processing costs to the model to allow the optimum selling weight to be determined also produced further advantages over least cost per unit of feed diets and selling at 1.724 kg liveweights. These analyses suggest that if finishing weight cannot vary, then a system of weight premiums or penalties which varies by level of feed ingredient prices and/or by selling price of the bird should be investigated.

IT HAS previously been shown that vitamin E free diets can be formulated which when supplemented with unsaturated fat, do not give rise to either encephalomalacia or exudative diathesis in non-depleted chicks, Scott et al. (1957). They concluded that nutritional factors other than those described to date are capable of influencing the expression of vitamin E deficiency in the chick. At about the same time Patterson et al. (1957) and Schwarz et al. (1957) demonstrated that vitamin E free casein and a number of defatted pork tissues as well as selenium afforded a high degree of protection against exudative diathesis in chicks fed Torula yeast diets devoid of vitamin E. Since the basal diet employed by Scott et al. (1957) contained “vitamin-free” casein, one can postulate in light of the observations noted above that an impurity in the casein, presumably selenium, prevented the appearance of exudative diathesis. It should be …