Rozwadowska & Cahalan (2002) analysed the biases in mean radiativ

Rozwadowska & Cahalan (2002) analysed the biases in mean radiative fluxes at the surface and the TOA (Top Of the Atmosphere) for non-uniform sea ice and stratus cloud above it. Ricchiazzi & Gautier (1998) studied the impact of surface albedo inhomogeneity on cloud optical thickness retrievals from AVHRR measurements. Degünther & Meerkötter (2000) and Pirazzini & Räisänen (2008) studied the effect of albedo contrast on downward irradiance, including the effect of stratus cloud, for simplified model cases. Papers dealing with the impact of surface heterogeneity on radiative transfer in the high-latitude

atmosphere are limited to the Antarctic environment, mainly the Palmer station (e.g. Podgorny and Lubin, 1998, Ricchiazzi

and Gautier, 1998, Lubin et al., 2002, Ricchiazzi et al., 2002 and McComiskey et al., 2006), continental Europe (Tromsø, Norway; Kylling et selleckchem IWR-1 manufacturer al., 2000 and Kylling and Mayer, 2001) or to sea ice (Smolskaia et al., 1999, Mayer and Degünther, 2000, Benner et al., 2001 and Rozwadowska and Cahalan, 2002). Because horizontal photon transport depends on both atmospheric and surface properties, the results obtained so far are of a regional nature and cannot be applied directly to regions of different topography, albedo distribution or prevailing atmospheric conditions. The Hornsund area (Spitsbergen, Svalbard) has a different, more mountainous relief, a more variable surface albedo distribution and a more complex Forskolin molecular weight coastline (a fjord) than the surroundings of the Palmer station. Very few works deal with the Spitsbergen area. Arnold et al. (2006) investigated the spatial and temporal variations in the surface energy balance of Midre Lovenbreen, a small valley glacier in northwest Spitsbergen, using a distributed, two-dimensional surface energy balance model. Glacier topography is found to play a fundamental role in determining the surface energy balance. Topographic shading, slope, as well as aspect and correction

of the surface albedo for high solar zenith angles are found to play a crucial role in determining spatial patterns of surface energy balance and therefore melt. Szymanowski et al. (2008) developed a GIS-based clear sky solar radiation model for a part of the Hornsund area (SW Spitsbergen) covered by the orthophotomap 1:25 000 Werenskioldbreen and surrounding areas (Norsk Polarinstitutt and Silesian University). They applied the ‘r.sun’ solar model ( Hofierka, 1997 and Šúri and Hofierka, 2004) to calculate daily sums of direct, diffuse and total ‘clear-sky’ solar radiation. Surface distributions of solar energy under clear sky conditions are highly variable in the area under study. Monthly mean total solar radiation fluxes under a clear sky in June vary from below 50 to over 350 W m− 2. The model by Szymanowski et al. (2008) is the only attempt to model the influence of the surface relief on solar radiation inflow to the Hornsund region.

However, in many instances the protein of interest cannot be obta

However, in many instances the protein of interest cannot be obtained from heterologous expression and consequently efficient in vitro labelling becomes a challenging task. From a biological perspective, proteins do not act individually but are often part of a complex interaction network that is regulated in space and time. Hence, an investigation of isolated molecules is revealing just one layer of information

but does not reflect the complex scenario found in a cellular environment. These drawbacks can be overcome employing the recently developed single-molecule pull-down [ 28••]. This approach extends the well-known co-immunoprecipitation technique to the single-molecule level (termed SiMPull). A target protein is directly captured from the cell lysate using a specific antibody or protein tag. At the same time interaction partners are co-purified. A subsequent washing step removes Dabrafenib price all unbound proteins and immobilised target proteins or protein complexes can be directly visualised

using either a fluorescent fusion protein or the dye-labelled antibody ( Figure 2). Sample preparation is quick and mild preserving biological conditions and increasing the probability to capture weak or transient interactions. Erlotinib supplier The direct immobilisation of endogenous complexes from cellular extracts on a cover slip provides a wealth of information and informs for example about stoichiometries within the protein complex, the oligomerisation state of a protein, the expression level of a specific protein [ 30]. Furthermore, the catalytic activity of an enzyme can be directly monitored after extraction [ 28••]. The SiMPull technique has been employed to study the function of complex biomolecular machineries composed of multiple subunits like the eukaryotic spliceosome

[ 31] and the replisome [ 32 and 33] but includes also studies on protein kinases and the mTOR signalling complex [ 28••] Histidine ammonia-lyase (for an overview see [ 34•]). SimPull opens up the possibility to visualise complex macromolecular machineries not amenable to in vitro assembly as they can be directly reconstituted on the cover slip (e.g. the eukaryotic replisome) [ 29] and the order of assembly can be entangled. The activity of the machinery can be monitored in the presence of cellular co-factors that have not been found to interact with the complex with conventional biochemical methods because of labile interactions. As single molecule fluorescence techniques are highly sensitive minimal amounts of the molecule of interest are sufficient for measurements. Hence, expression of a GFP-tagged target protein can be adjusted to endogenous levels minimising the disturbance of the finely tuned cellular network. For many non-specialists, single molecule techniques seem ‘sophisticated’. The question for the single molecule spectroscopist is rather why one should do an ensemble experiment if the problem can be addressed on the single molecule level.

The was discharged after 10 days Large foreign bodies can be ret

The was discharged after 10 days. Large foreign bodies can be retrieved by endoscopy and in selected cases gastrointestinal perforations secondary to foreign bodies can also be managed by endoscopy being surgery a

second line approach. “
“A 70-year old man with Parkinson’s disease, congestive heart failure, CABG surgery in 2005, hypertension, renal failure and a BMI of 39 presented with abdominal pain and increasing renal dysfunction. A CT scan was performed with normal findings. A gastroscopy was then performed. A junior doctor performed the endoscopy. He found a duodenal ulcer and a duodenal tumour. The patient experienced intense abdominal pain and abdominal distension immediately after the procedure. A senior surgeon was called Ku0059436 to the endoscopic unit. He realised that a perforation had occurred and relieved RO4929097 nmr the abdominal pressure placing four 16 G needles through the abdominal wall. The patient was taken to the OR. He was treated with a covered duodenal stent that sealed the perforation. He was allowed to drink immediately after the procedure and recovered. The patient was dismissed within one week. The stent was removed endoscopically in conscious sedation after three weeks. A diagnostic laparoscopy was performed. There was old fibrin and foul liquid above the liver indicating a 2-3 days

old perforation. Due to plentiful intra abdominal fat it was impossible to visualise the duodenum. A per-operative gastroscopy was performed and the duodenal ulcer was recognised. The previously described “tumour”

was found to be the liver surface. Air bubbles were seen on the laparoscopic view while insufflating with the gastroscope, verifying a perforation. It was possible to pass the gastroscope outside the duodenum into the subomental area under the liver. The gastroscope was retrieved and passed down the real duodenal lumen. A guide wire was placed into the distal portion Aspartate of the duodenum. A 9 cm partially covered duodenal stent (Hanarostent, M.I Tech, Korea) was placed over the wire, through the scope with the covered portion reaching into the stomach. No air bubbles were seen at laparoscopy, indicating sealing of the perforation. An abdominal drain was placed. We believe that covered metal stents can be used as a treatment alternative for perforated duodenal ulcers, especially in patients with comorbidities. This treatment option has recently been used in several patients at our department with good results. Simultaneous drainage of the abdominal cavity at the site of leakage seems to be crucial in most cases. Stent treatment together with percutaneous drainage may even be a future alternative to surgery in all patients with perforated duodenal ulcers. “
“Postoperative delayed bleeding of submucosal tunnel is a rare complication after peroral endoscopic myotomy (POEM) for esophageal achalasia. However, once it occurs it can be fatal.

, 2001 and Gwack et al , 2007) Therefore, we assessed whether DO

, 2001 and Gwack et al., 2007). Therefore, we assessed whether DON exerts NFAT translocation in primary mouse thymocytes. As shown in Fig. 7, DON induced a rapid translocation of NFAT to the nucleus this website within 1 h. In order to confirm the expression profiles provided by the microarray analysis, four genes were selected for expression analysis by quantitative RT-PCR. Genes were selected on basis of a key role in either T cell activation, negative selection, or ER stress response: CD86, CD80, Ccl4, and ATF3. The expression patterns of these genes as assessed by quantitative RT-PCR were very similar

to those provided by the microarray analysis (Fig. 8). This study shows the in vivo effects of

DON on gene expression in mouse thymus cells. Biological interpretation of the gene expression profiles confirmed some already known pathways of DON toxicity but also put forward yet unknown modes of action. Our results clearly indicate that DON induces a T cell activation response, which is rapidly followed by apoptosis and depletion of thymocytes similarly to the process of negative selection of precursor thymocytes with self-recognition. This is in agreement with the thymus being the most sensitive SB203580 target organ for DON exposure. A high number of genes were significantly affected after 3 h of exposure at all doses used. For the 5 and 10 mg/kg bw dose groups, the number of affected genes was considerably reduced after 6 h, while only a small number of genes was still affected after 24 h. This indicates that the effects of 5 and 10 mg/kg DON were reversible. The limited period of DON toxicity is likely related to the previously described rapid metabolization and clearance of DON (Pestka, 2007 and Amuzie et al., 2008). In mice treated with 5 mg/kg bw DON, concentrations have been reported to reach a maximum in plasma and tissues within 15–30 min and to be reduced by 75–90% after 120 min already

(Amuzie et al., 2008). The number of affected genes induced by 25 mg/kg DON remained constant over time, indicating that this dose induces an irreversible Methane monooxygenase effect, at least during a period of 24 h. DON stimulated within 3 h the expression of many genes that are also activated during the T cell activation response. This conclusion is partly based on the similarity of our data with those on T lymphocytes that were activated with either PMA and IL2 or a combination of cytokines (Feske et al., 2001 and Shaffer et al., 2001). These gene sets include calcium influx-dependent and NFkB target genes (Fig. 3A). Normally, T cell activation is induced by binding of the T cell receptor to an antigen. This induces depletion of the endoplasmatic reticulum calcium stores, which activates NFkB and evokes a larger calcium influx across the plasma membrane through calcium transporters.

, 2011) fashion have been described that may minimize the functio

, 2011) fashion have been described that may minimize the functional impact of the relatively poor quality of prosthetic vision. For example, Parikh et al. (2013) used feature extraction algorithms to identify the most relevant parts of an image, with a blinking phosphene guiding prosthesis recipient׳s attention to a particular part of the visual field. The authors reported improvements in object avoidance, reductions in head scanning and more rapid object location with the use of cues. In a similar fashion, Mohammadi et al.

(2012) propose the use of a range-finding algorithm to estimate the distance to objects, which would be relayed Metformin mw to the prosthesis wearer using a group of phosphenes reserved for this purpose. The use of more advanced image processing techniques derived from the field

of robotics may provide further improvements in the way in which phosphenes are utilized to represent the physical environment. For example, recognition of the ground plane to clearly identify unobstructed areas when walking may permit better obstacle avoidance (Lui et al., 2012 and McCarthy et al., 2011). Object recognition and location, particularly in complex environments, may be improved by using symbolic or iconographic techniques akin to those used in computer graphics (Lui et al., 2012). Facial recognition in particular may benefit from these techniques, whereby simplistic representations of faces (Lui et al., 2012) could be assembled using far fewer phosphenes than would be possible using an intensity-based method (Bradley et al., 2005). Such techniques may be click here particularly useful in the case of long-term phosphene dropout and map degradation, allowing the available phosphenes to be used to maximal effect. The choice by Brindley and Dobelle to present Braille characters instead of conventional lettering could be considered a conceptually Selleckchem Erastin similar “repurposing” of a poor quality phosphene map

to maximize its utility (Brindley and Rushton, 1974 and Dobelle, 1974). As demonstrated by the success of Dobelle׳s (2000) last reported patient (in the scientific literature), the ongoing development of image processing techniques applicable to prosthetic vision should continue to provide improvements in the likely outcomes of visual prosthesis recipients, both cortical and retinal. Even further improvements will undoubtedly come from an improved understanding of the encoding of the more complex features of imagery, such as color, form and motion in visual cortex neurons, possibly offering a richer visual experience (Normann et al., 2009). Moreover, with reductions in the size of the stimulated neuron pool, possibly via increases in the density of electrode arrays (e.g. Wark et al., 2013), and a “bioinspired” approach to encoding information into neuronal spike trains, continued improvements in the quality and functional utility of prosthetic vision may be realized in the future.

A mineral salt may be dissolved in the collected sea water or slu

A mineral salt may be dissolved in the collected sea water or slurry sample to increase the water density sufficiently to float plastic fragments. Samples of surface water with floating microparticles are carefully removed for study. Concentrating samples of sea water samples by evaporation can also concentrate the microplastic litter at the surface. Microplastics in surface water samples can be visualised under a microscope using a lipophilic dye (such as Nile Red) to stain them (Andrady, 2010). The water samples Roxadustat cost will also contain microbiota such as plankton of the

same size range but these will not be stained by lipophilic dyes. Digestion of the sample with hot dilute mineral acid can be used to remove the biomass impurities as the treatment will not have any impact on the microplastics fraction. Microplastics suspensions might be identified using optical

microscopy, electron microscopy, Raman spectroscopy and FTIR spectroscopy. The Fig. 1 below shows a schematic of this suggested sampling approach designed to isolate microplastics. As a prelude to discussing the mechanisms responsible for generation of microplastics, understanding the light-induced degradation and biodegradation of plastics in the marine environment is important. Degradation is a chemical change that drastically PI3K inhibitors in clinical trials reduces the average molecular weight of the polymer. Since the mechanical integrity of plastics invariably depends on their high average molecular-weight, any significant

extent of degradation inevitably weakens the material. Extensively degraded plastics become brittle enough to fall apart into powdery fragments on handling. Even these fragments, often not visible to the naked eye, can undergo further degradation (generally via microbial-mediated biodegradation) with the carbon in polymer being converted into CO2 (and incorporated into marine biomass). When this process goes onto completion and all the organic carbon in the polymer is converted, it is referred to as complete mineralisation (Andrady, 1994, Andrady, 1998 and Eubeler et al., 2009). Degradation is generally classified according to the agency causing it. (a) Biodegradation – action of living organisms usually microbes. With common polymers such as LDPE, HDPE, PP and nylons exposed to the marine environment oxyclozanide it is primarily the UV-B radiation in sunlight that initiates photo-oxidative degradation. Once initiated, the degradation can also proceed thermooxidatively for some time without the need for further exposure to UV radiation. The autocatalytic degradation reaction sequence can progress as long as oxygen is available to the system. On degradation the molecular weight of the polymer is decreased and oxygen-rich functional groups are generated in the polymer. Other types of degradation processes are orders of magnitude slower compared to light-induced oxidation. Hydrolysis is usually not a significant mechanism in seawater.

1 In all contrasts, high SR+/SP− and SR+/N− scores were associat

1. In all contrasts, high SR+/SP− and SR+/N− scores were associated with brain activity peaking in the left ventral striatum. The peak activity for SR+/SP was localized more anterolaterally in the caudate head spreading into nucleus

accumbens and putamen, while the SR+/N− related peak activity was situated more posteromedially spreading into nucleus accumbens only. Both SR+/SP− and SR+/N− scores were associated with activity in the bilateral medial orbitofrontal cortex and left thalamus. In addition SR+/SP− was associated with activity in the left posterior hippocampus spreading into adjacent parahippocampal gyrus and fusiform cortex, right lateral occipital cortex and left opercular cortex while SR+/N− scores was associated with activity in the bilateral inferior temporal gyrus, left middle temporal gyrus, right inferior and middle frontal gyrus and the bilateral lateral orbitofrontal cortex. The right RT priming effect SP600125 manufacturer was associated 3-Methyladenine chemical structure with bilateral striatal activity (cluster

size: 409, x–y–z = 14–4–6, max Z-value = 3.8) where the left striatal activity was localized more ventrally compared to the right striatal activity. Striatal activation was not observed with the left RT priming effect as covariate. Multiple linear regression analyses with max Z-values from the 6 ROIs in the left ventral striatum associated with SR+/SP− and SR+/N−, showed that SR scores significantly increased brain activity while SP and N significantly mafosfamide decreased brain activity and that a substantial portion of the variance was explained by SR, SP and N ( Table 5). The results support the Joint Subsystems Hypothesis, as adjusted SR scores, more than SR, predicted increased activity in the left ventral striatum. In addition, SR+/SP− scores predicted an increased right, but

not left, RT priming effect. The right RT priming effect was also associated with ventral striatal activity. This indicates that stronger reward associations were formed for right than for left primes and targets, most likely related to right-handedness. We observed that RTs were faster for right hand responses while there were more commission errors in left trials similar to previous reports (Avila & Parcet, 2002). Handedness reduces the precision and speed of the non-preferred hand (Flowers, 1975). Thus, successful trial completion seemed to yield reward associations and drive BAS related impulsivity in the present task. As hypothesized, high SR scores were associated with increased brain activity in the dopamine innervated ventral striatum, a central BAS structure (Pickering & Gray, 2001). The ventral striatal activity was elicited by unexpected reward cues, i.e., cue-primes and neutral trials targets which were both unforeseen and associated with successful trial completions. In comparison, neutral primes were not reward associated as indicated by their stimulus neutrality.

gmsev de “
“Die Mengenbereiche

gmsev.de. “
“Die Mengenbereiche SB203580 chemical structure für die Aufnahme essentieller Nährstoffe werden üblicherweise im Rahmen eines einfachen Modells diskutiert, demzufolge sich nachteilige Auswirkungen auf die Gesundheit dann ergeben, wenn die Zufuhr entweder zu niedrig (Mangel) oder zu hoch (Vergiftung) ist. Wie hier diskutiert werden soll, ist die Definition eines Bereiches, in dem die Aufnahme von Zink ausschließlich förderlich ist (acceptable range of oral intake, AROI), ein komplexes Problem und eine wirkliche Herausforderung. Zink kommt in Hunderten von Zinkenzymen und in Tausenden Proteindomänen vor.

Die katalytischen, strukturellen und regulatorischen Funktionen des Zinks in diesen Proteinen aufzuzählen und zu diskutieren, geht weit über den Rahmen dieses Artikels hinaus. Jedoch muss man sich der großen Anzahl

zinkabhängiger biologischer Prozesse und Interaktionen bewusst sein, um die Bedeutung und die Folgen einer unausgewogenen Zinkversorgung über die Nahrung richtig einschätzen zu können. Zink ist Ponatinib cost essentiell für Wachstum und Entwicklung. Auf der zellulären Ebene spielt Zink eine entscheidende Rolle für Proliferation, Differenzierung und Apoptose. Beispiele für zinkabhängige Funktionen sind u. a. Immunität, Metabolismus, DNA-Metabolismus und -Reparatur, Reproduktion, Gesichts- und Geschmackssinn sowie Kognition/Verhalten [1], [2], [3], [4], [5], [6], [7], [8], [9], [10] and [11]. Darüber hinaus ist Zink unabdingbar für Neurogenese, Synaptogenese, Neuronenwachstum und Neurotransmission [12], [13], [14] and [15].

Zink wird von einer bestimmten Klasse glutaminerger Neuronen in spezifischen synaptischen Vesikeln gespeichert und als Neuromodulator aktivitätsabhängig freigesetzt [16]. Ein wichtiger Fortschritt innerhalb der letzten zehn Jahre war die Entdeckung eines homöostatischen Systems von Proteinen, das die Menge an zellulärem Zink über die Koordination des Imports und Exports, der Verteilung sowie über die Messung des Zinkstatus kontrolliert. Die Beteiligung so vieler Proteine an der homöostatischen Kontrolle erhöht die Wahrscheinlichkeit, dass es aufgrund von Proteinmutationen zu Veränderungen im Zinkmetabolismus kommt. So geht z.B. die Akrodermatitis enteropathica, eine genetische Störung Mirabegron der Zinkabsorption beim Menschen und, wenn sie nicht durch Zinkgabe behandelt wird, eine tödliche Erkrankung, auf eine Mutation des Zinktransporters hZip4 zurück [17] and [18]. Obwohl schon vielerlei Funktionen des Zinks bekannt sind, ist immer noch unklar, ob diese in Bezug auf die Verteilung des Zinks hierarchisch sind. Werden, wenn das Angebot an Zink abnimmt, alle zinkabhängigen Funktionen gleichermaßen beeinträchtigt oder werden einige Funktionen eingeschränkt, um die Homöostase aufrechtzuerhalten? Ohne eine Antwort auf diese Frage ist es nicht möglich, die relative Bedeutung verschiedener klinischer oder funktioneller Tests auf Zinkmangel zu beurteilen. Empfehlungen stützen sich auf einen gemessenen Bedarf.

This work was supported by grants from CNPq, PRONEX II, FAPERGS,

This work was supported by grants from CNPq, PRONEX II, FAPERGS, PROPESQ/UFRGS and FINEP research grant Rede Instituto Brasileiro de Neurociência (IBN-Net) # 01.06.0842-00. “
“The Wistar Audiogenic Rat (WAR) strain is a genetic model of sound-induced reflex epilepsy that, in the acute situation, mimics tonic–clonic seizures (audiogenic seizures; AS) and, in the

chronic protocol, mimics temporal lobe epilepsy (Garcia-Cairasco et al., 1996 and Dutra Moraes et al., 2000; for review see Garcia-Cairasco, 2009). There is a strong relationship between GSK2118436 mw hormones and epilepsy; epileptic seizure can promote hormonal and metabolic alterations after seizures (Trimble, 1978, Meldrum et al., 1979, Wyllie et al., 1984 and Pritchard et al., 1985). Some hypothalamic hormones are known to facilitate (corticotrophin releasing factor—CRF) or to inhibit (thyrotropin releasing hormone—TRH and luteinizing hormone releasing hormone—LHRH) epileptic seizures (Plotnikoff and Kastin, 1977, Bajorek et al., 1984 and Delgado-Escueta

et al., 1986). Some pathophysiological aspects of seizure susceptibility are directly related to the hypothalamus–pituitary system (Amado et al., 1993), which is regulated by limbic structures, such as the hippocampus and amygdala, which play an important role in the genesis of epilepsy (Sperling and Wilson, 1986). During convulsive seizures, HPA axis activation occurs along with an increase in plasma glucocorticoid concentration. Significant increases in plasma concentrations of cortisol, GH FK506 concentration and PRL were observed after spontaneous generalized seizures (Culebras et al., 1987). We also observed higher post-ictal PRL levels, in comparison to those observed in other stress paradigms in WAR (Garcia-Cairasco et al., 1996). In addition, we found that lactation-induced hyperprolactinemia is also a strong modulator of seizure sensitivity in WARs (Doretto et al., 2003b). The HPA axis is characterized by the presence of a circadian rhythm in basal and stress conditions, and the HPA axis response to stress has been shown

to be higher during the nadir than during the daily rhythm peak (Kant et al., 1986, Bradbury et al., 1991 and Dallman et al., 1992). Moreover, stress is a very common, P-type ATPase self-reported precipitant of seizures in patients with epilepsy (Frucht et al., 2000, Spector et al., 2000 and Nakken et al., 2005). There is evidence showing the relationship among epilepsy, hormones, stress and circadian rhythms. In this sense, the aim of this study was to evaluate the HPA axis in response to different stimulations in the WAR strain, a genetic model of epilepsy. At birth, there was no difference in the body weight between WAR and Wistar groups. However, after the first week until the ninth week, the body weight was significantly lower (p < 0.05) in the WAR group compared with the Wistar group (Fig. 1A). Additionally, the adrenal gland weight of the WAR group (13.

The polymerization of the resin subsequently proceeded at 60 °C f

The polymerization of the resin subsequently proceeded at 60 °C for 48 h. The embedded samples were sectioned HSP inhibitor in ∼70 nm thick slices using a diamond knife. The sections were transferred to supported gold grids and stained with uranyl acetate and Pb-citrate. The samples were observed under a Carl-Zeiss Model LEO906 transmission electron microscope. The surface-response methodology was used to study the effect of the plasticizer concentration (Cg or Cs) and process temperature (Tp) on dependent variables (mechanical properties and solubility).

The levels of the independent variables were defined according to a 22 full-factorial central composite design (star configuration) (Table 1 and Table 2).

An analysis of variance (ANOVA), a multiple comparison test, and all statistical analyses were performed using the Statistica 6.0 software. The data were fitted to a second order equation (Eq. (2)) as a function of the independent variables. equation(2) Yi=b0+b1X1+b2X2+b12X1X2+b11X11+b22X22where bn are constant regression coefficients, Yi are dependent variables (puncture force (PF), puncture deformation (PD), tensile strength (TS), elongation at break (E), Young’s modulus (YM), and solubility (S)), and X1 and X2 are the coded independent variables (plasticizer concentration and process temperature, respectively). After the surface-response results, were obtained, Rolziracetam optimization

of the process conditions was carried out by multi-response analysis Selleckchem AZD2281 (Derringer & Suich, 1980). This method involves the transformation of response variables (Yi) to an individual function of dimensionless desirability (gi) (Eq. (4)), ranging from 0 (undesirable response) to 1 (desired response). From the geometric means of individual desires, the overall desirability function (G) (Eq. (3)) is obtained. G was later maximized using the software Mathematic 5.0. equation(3) G=(g1n1,g2n2,……,gknk)1/kwhere: equation(4) gi=Yi−YminYmax−Yminwhere Ymin is the response minimum value and Ymax is the response maximum value, k is the number of considered responses, and ni is the weight of each response. In the case of solubility, Eq. (4) had to be redesigned, so that the minimum values for these responses could be obtained (Eq. (5)). equation(5) gi=Ymax−YiYmax−Ymin Finally, the Tukey’s test was applied at a 5% significance level to compare means for mechanical, solubility, moisture content, barrier properties, and GAB parameters of glycerol and sorbitol films prepared using the optimal formulation. The amaranth flour contains 9.0 ± 0.4 g/100 g moisture, 2.1 ± 0.0 g/100 g ash, 7.9 ± 0.2 g/100 g lipids, 14.1 ± 0.3 g/100 g protein, and 75.8 ± 0.2 g/100 g starch (among which 11.9 ± 0.3 g/100 g was amylose) (dry basis).