This study reveals the affordances and limitations of introducing a new instructional framework—archival-based pedagogy—into a digital literacies course for English language arts educators in the ...fall of 2020 in the midst of COVID-19. Its purpose was to document how seven students in the course went about choosing archival content for the podcasts they created as part of their final project. The conceptual framework of artifactual critical literacy guided the study’s methodology, analysis, and interpretation of the participants’ descriptions of how the archival artifacts they selected became centerpieces in their podcasts and reflected their personal and/or professional identities. Findings from the study are presented through the seven participants’ narrative reflections, created during the spring of 2021. Implications are discussed for furthering archival-based pedagogy as a curricular alternative to traditional online teaching and learning.
Three sour cherry and three table grape cultivars were analyzed using inductively coupled plasma optical emission spectrometry. The elements: Na, K, Ca, Mg, Fe, Cu, Zn, Mn, Cr, Cd, Co, Pb, and Ni ...were detected in all samples; four elements are very abundant (K, Na, Ca, and Mg), and four are not abundant (Cu, Fe, Mn, and Zn). Five of them are trace elements (Cr, Cd, Co, Pb, and Ni) at <0.1 mg/kg. Among the 13 elements analyzed, potassium was the most abundant element distributed throughout all categories of fruits. Iron was the predominant minor element constituents. Manganese concentration was the highest in table grape cultivars. The accuracy of the results was evaluated by spike recovery tests. Analysis of variance was used to establish the metals with significant difference in mean content between the cultivars from sour cherries and between table grapes. Principal component analysis was used to evaluate the distribution of metals.
Iron(III) form an indigo-blue complex with the disulphonated product of hydroquinone (K2S2Hy) in acid media with an absorption maxima at 600 nm. The time stability of the complex, dependence of the ...complex absorbance on pH and the influence of temperature and solvent were followed on the basis of spectrophotometric measurements. Using the Job, mole ratio and Henry?Franck?Ostwald methods, the composition and relative stability constant of this complex, in 80 vol.% ethanol as solvent, were determined (1:1;log??293 = 3.37). A new spectrophotometric method for the determination of iron has been developed and the calibration curve is linear in the concentration range from0.65 to 6.45 ?g cm-3. The effects of foreign ions on the determination of iron were investigated in order to assess the selectivity of the method. The method was applied for the determination of Fe(III) in the natural juice of beet.
Fe(III) gradi inidgo-plavi kompleks sa disulfonovanim produktom hidrohinona (K2S2Hy) u kiseloj sredini sa apsorpcionim maksimumom na 600 nm. Na bazi spektrofotometrijskih merenja ispitana je vremenska stabilnost kompleksa zavisnost apsorbance kompleksa od pH sredine, uticaj temperature i rastvaraca. Metodom Job-a, molskih odnosa i Henri-Frenk-Ostvald-ovom metodom je odredjen sastav (1:1) i uslovna konstanta stabilnosti kompleksa u 80 % etanolu kao rastvaracu (log??293 = 3.37). Razvijena je spektrofotometrijska metoda za odredjivanje Fe(III) u rastvoru i dobijena kalibraciona prava je linearna u intervalu koncentracije Fe(III) od 0,65 do 6,45 ?g cm-3. Ispitan je uticaj stranih jona na odredjivanje gvozdja u cilju odredjivanja selektivnosti metode. Metoda je primenjena za odredjivanje gvozdja u prirodnom soku cvekle.
The paper investigates the onomastic data collected in Donja Sabanta, Sumadija region, which administratively belongs to the municipality of Kragujevac. Microtoponyms and antroponyms (personal and ...family nicknames and hypocoristic names) of all the residents who live in the village, according to the information we possess, either permanently or from time to time (in order to do seasonal agricultural work on the land). In order to establish the dynamics of the antropomasticons from the village of Donja Sabanta we have consulted the birth register, and thus compared the system of personal first names of the people born between 1930 and 1960 and those born between 1990 and 2020. The aim of this paper is to list all the toponyms and antroponyms and analyses them from the structural and semantic aspect. The secondary aim is to describe the stability and changes in the system of official names of the residents of the village Donja Sabanta. The collected microtoponyms are motivated by the versatile natural and cultural characteristics of the physiogenous and antropgenous phenomena in the village. In the formation of the microtoponyms in Donja Sabanta we have noticed all the deriva- tive models and suffixes which function in the toponymy of (the central) Serbia. The system of male personal nicknames stands out within the system of antroponymous categories by its numerousness and versatility. Apart from -a forms, which are domi- nant in Sumadija, a significant number of male hypocoristic names ending in -o has been confirmed (Pero, Aco and similar). At the end of the paper we enclose a register in alphabetical order of microtoponyms and antroponyms which were collected in the field.
Three table grapes and 4 wine grapes collected from a southern Serbian vineyard were evaluated and compared for their antioxidant properties and phenolic profile. Among the varieties tested, ...'Cabernet Sauvignon' contained the highest total phenolic content with 173.6 mg/100 g of fresh weight. Also, the total flavonoid and antocyanin content of 'Cabernet Sauvignon' was significantly higher from the other. 'Cabernet Sauvignon' and 'Merlot' had the strongest DPPH radicals scavenging activity (1,318.6 and 1,282.0 ${\mu}mol$ Trolox equivalent/100 g, respectively). 'Cabernet Sauvignon', 'Merlot', 'Prokupac', 'Vranac', 'Muscat Hamburg', and 'Ribier' grape varieties were found to be rich in malvidin-3-O-glucoside, while 'Cardinal' grape variety was found to be rich in peonidin-3-O-glucoside. The following compounds were also identified and quantified using HPLC-DAD: 2 flavan-3-ols and 4 hydroxycinnamic acids in all grape samples. The results suggested that phytochemicals in the selected table and wine grapes have potent antioxidant activities in correlation with phenolic content.
The antioxidant capacity and the phenolic content of 3 dried red currant samples from different geographical regions were studied. Three solvent systems were used (methanol, ethanol, and acetone) at ...the same concentrations (70%) and with 100% deionized water in presence 0.1% HCl. The antioxidant capacity of the dried fruit extracts was evaluated using DPPH radical scavenging assays. The efficiency of the solvents used to extract phenols from the 3 dried red currant samples varied considerably. The polyphenol content of the dried red currant samples was 3.26 to 12.68 mg gallic acid equivalent/g dried fruit. The high phenolic content was significantly correlated with the high antioxidant capacity. The following compounds were identified and quantified using HPLC with photodiode-array detection: 3 anthocyanins, 2 flavonols, 2 flavan-3-ols, and 3 hydroxycinnamic acids in all samples. Generally, red currant fruits are a rich source of phenolics, which shows an evident antioxidant capacity.
Even if some determinants of lung cancer (LC) prognosis have been established, their independent effect on long term survival remains to be seen. The objective of the current study was to identify ...the prognostic indicators of long term survival among LC patients treated by surgery.
All patients with LC recorded at the Geneva Cancer Registry between 1977 and 1987 were analyzed by logistic regression, considering as cases (n = 98) those patients alive 10 years after their initial diagnosis and as controls (n = 330) all other patients, excluding those who did not undergo putative curative surgery. The effect of each prognostic factor was evaluated after accounting for age and gender ("crude" effect) and also for other a priori confounding factors (adjusted effect). Additional models considered two staging variables simultaneously to identify the strongest staging determinant. Results were presented as relative risk estimates of long term (>/=10 years) survival.
Age, histology, and stage of disease significantly influenced prognosis regardless of the confounding factors considered. Gender also emerged as a discriminated factor in LC outcome, with a 2.1-fold increased chance (95% confidence interval, 1.6-3.5) of long term survival for women compared with men. Method of discovery, presence of symptoms, period of diagnosis, socioeconomic status, and tumor differentiation did not appear to be associated with long term survival. Extent and size of the tumor were found to be the most reliable prognostic staging factors, whereas adenopathy had no effect after accounting for extension.
The current population-based study quantifies the independent effect of the factors modifying the chances of curability in patients with LC. In particular, it provides additional evidence that gender strongly influences long term survival.
For most cancers, information on treatment tolerance and results for elderly patients is quite limited. This study was conducted to investigate the feasibility and results of curative nonsurgical ...treatment of patients age 75 years or older with anal carcinoma.
From January 1976 through June 1996, invasive anal squamous cell carcinoma was diagnosed in 58 patients age > or = 75 years. Curative treatment was administered to 47 patients (81%), of whom 42 received radiotherapy (RT), either used alone (21) or associated with concomitant chemotherapy (CT). RT was administered in two sequences, the first in which a median dose of 39.6 gray (Gy) was delivered with megavoltage photon beams, followed (after a median interval of 43 days) by a boost with either brachytherapy or external beam (median dose, 20 Gy). CT started on Day 1 and generally consisted of 1 cycle of mitomycin C (MMC; median dose, 9.5 mg/m2) and a 96-hour infusion of 5-fluorouracil (5-FU; median dose, 600 mg/m2/day). The median follow-up for all patients was 48 months (range, 5-163 months).
Of 40 patients (95%) who completed curative treatment, acute toxicity resulted in shortening of the planned first irradiation sequence in 2 patients (1 in each group) and an unplanned treatment break in 11 patients (4 in the RT group and 7 in the RT-CT group). Grade 2 and 3 acute reactions (RTOG) were observed in 43% and 54% of patients, respectively. Among all Grade 3 reactions, 32% occurred in the RT group and 68% in the RT-CT group. In patients receiving RT-CT, Grade 2-3 leukopenia was observed in 25% of patients, Grade 2-3 fatigue was observed in 58% of patients, and Grade 2 cardiac toxicity related to 5-FU occurred in 1 patient. At 5 years, the overall survival was 54% (49% and 59% for the RT and RT-CT groups, respectively, P = 0.28), and the actuarial local control rate was 78.5% (73% and 83% for the RT and RT-CT groups, respectively, P=0.36). Five patients presented with Grade 3-4 late complications, all of them in the RT-CT group.
The current series confirms the feasibility of sphincter-conserving treatment for elderly patients who present with anal carcinoma. Rates of acute or late complications appeared similar to those observed in younger patients, and the oncologic results were at least as favorable as those commonly reported.
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