Longevity of organic pepper (Capsicum annuum L.) seeds

This study was carried out to determine seed longevity in organic and conventionally produced pepper seeds from four different pepper cultivars. Seeds were stored at 20± 2 oC with 7.5±0.5 seed moisture over 48 months. Longevity of seeds were evaluated with Ki (initial seed quality), P50 (half-viability period), σ (standard deviation of distribution of seed deaths in time), and regression coefficient values. The highest longevity was observed in ‘Corbaci’ and ‘Yaglik’ cultivars, while ‘Surmeli’ and ‘K. Dolma’ were found to have shorter longevity. P50 was 43.4 and 40.2 months for ‘Corbacı’ and 34.9 and 39.7 months for ‘Yaglık’ organic and conventional cultivars, respectively, whereas it was about 21.4 and 23.7 months in ‘K. Dolma’ and ‘Surmeli’ cultivars. Similarly, the highest σ and regression coefficient values were observed for ‘Corbaci’ and the lowest for ‘Surmeli’ cultivars. Organic and conventional pepper seed longevity was not different in the same species. Regression coefficient values were 0.043 in organic and 0.046 in conventional seeds for ‘Corbaci’. Very close values were found between the two production systems for the other cultivars too. Results indicate that organic seeds had similar longevity to conventional ones. The main differences originated from the cultivars, not from the production system

ETAP: Energy-Aware Timing Analysis of Intermittent Programs

Energy harvesting battery-free embedded devices rely only on ambient energy harvesting that enables stand-alone and sustainable IoT applications. These devices execute programs when the harvested ambient energy in their energy reservoir is sufficient to operate and stop execution abruptly (and start charging) otherwise. These intermittent programs have varying timing behavior under different energy conditions, hardware configurations, and program structures. This article presents Energy-aware Timing Analysis of intermittent Programs (ETAP), a probabilistic symbolic execution approach that analyzes the timing and energy behavior of intermittent programs at compile time. ETAP symbolically executes the given program while taking time and energy cost models for ambient energy and dynamic energy consumption into account. We evaluate ETAP by comparing the compile-time analysis results of our benchmark codes and real-world application with the results of their executions on real hardware. Our evaluation shows that ETAP’s prediction error rate is between 0.0076% and 10.8%, and it speeds up the timing analysis by at least two orders of magnitude compared to manual testing.acceptedVersio

Chemical composition and antimicrobial activity of Glebionis coronaria (L.) Cass. ex Spach essential oil

Glebionis coronaria (L.) Cass. ex Spach (syn. Chrysanthemum coronarium L.) is a member of the Asteraceae plant family which has extensive edible, folk medicinal, insecticidal uses. Previously, an essential oil of flowerheads of C. coronarium from Spain was reported to contain camphor (29.2%), α-pinene (14.8%), β-pinene (9.5%), and lyratyl acetate (9.8%). The oil was shown to possess significant antifungal activity [1]. Also, the essential-oil composition and antimicrobial properties of C. coronarium from Ukraine were investigated. The major constituents were found to be chrysanthemyl acetate (24.4%), chrysanthemol (21.8%), chrysanthenyl acetate (7.6%), camphor (7.3%), β-farnesene (5.9%), and α-bisabolol (5.6%). An ethanolic extract of the plant showed antimicrobial activity against Gram-positive (S. aureus) bacteria. [2]. Biological activities of the essential oil of C. coronarium from Jordan were also reported. The essential oil showed a significant antimicrobial activity against Gram-positive bacteria. Also, the oil showed moderate antioxidant activity, weak acetylcholinesterase-inhibitory and potent antiproliferative activities [3]. In the current study, the essential oil of the aerial parts of G. coronaria was obtained by hydrodistillation (3 h). The essential-oil composition was analyzed by means of gas chromatography-mass spectrometry (GC-MS). The main components of the essential oil from the aerial parts were capillene (54.5%) and caryophyllene oxide (9.8%). The current composition differed from the previously reported ones. Thus, G. coronaria originating from Istanbul belongs to a new chemotype of this species. Additionally, the antimicrobial activity of the oil was investigated against Gram-negative (Escherichia coli DH5α) and Gram-positive (Staphylococcus aureus) bacteria. The essential oil showed a growth-inhibitory activity against E. coli (53.3%) and S. aureus (17.1%), tested at 75 mg/mL. The antimicrobial effects of the essential oil were more pronounced against Gram-negative bacteria

Comparison of active vs. expectant management of the third stage of labor in women with low risk of postpartum hemorrhage: a randomized controlled trial

Objectives: To compare the ‘strictly’ active management protocol in women with low risk of postpartum hemorrhage using the expectant management protocol with respect to changes in hematologic parameters, uterotonics, blood transfusions, or additional interventions. Material and methods: A randomized controlled prospective trial in which 934 singleton parturients enrolled; 654 were randomly assigned to the active and mixed management groups. The primary outcome parameter was the reduction in hemoglobin concentrations due to delivery, and the secondary outcome parameters were changes in hemoglobin of more than 3 g/dL (ΔHb ≥ 3 g/dL), durations of the third stage of labor, need for additional uterotonic agents, blood transfusions, manual removal of the placenta, and surgical evacuation of retained products of conception. Results: The mean postpartum hemoglobin concentration was significantly higher (P = 0.04) in the active management group with a significantly lower reduction (P = 0.03). Falls of hemoglobin levels of more than 3 g/dL (ΔHb ≥ 3g/dL) were less common in the active management group though not significantly (P = 0.32). The mean duration of the third stage of labor was significantly (P < 0.001) shorter in the active management group. There was no significant difference between the two groups with regard to the need for additional uterotonic agents, uterine atony, blood transfusion, manual removal of the placenta, surgical evacuation of retained products of conception, and prolonged third stage of labor. Conclusions: Although active management of the third stage of labor was associated with higher postpartum hemoglobin levels, it did not influence the risk of ‘severe postpartum hemorrhage’ in women with low risk of postpartum hemorrhage

Renal complications of lipodystrophy: A closer look at the natural history of kidney disease

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/144612/1/cen13732_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/144612/2/cen13732.pd

Optical chemosensors and reagents to detect explosives

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