Wyniki wyszukiwania - Biblioteka Nauki

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Non-Invasive Hemoglobin Monitoring Device Using K-Nearest Neighbor and Artificial Neural Network Back Propagation Algorithms

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Munadi R. , Sussi S. , Fitriyanti N. , Ramadan D. N.

International Journal of Electronics and Telecommunications

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2022

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tom Vol. 68, No. 1

13--18

EN

The invasive method of medically checking hemoglobin level in human body by taking the blood sample of the patient requiring a long time and injuring the patient is seen impractical. A non-invasive method of measuring hemoglobin levels, therefore, is made by applying the K-Nearest Neighbor (KNN) algorithm and the Artificial Neural Network Back Propagation (ANN-BP) algorithm with the Internet of Things-based HTTP protocol to achieve the high accuracy and the low end-to-end delay. Based on tests conducted on a Noninvasive Hemoglobin measuring device connected to Cloud Things Speak, the prediction process using algorithm by means of Python programming based on Android application could work well. The result of this study showed that the accuracy of the K-Nearest Neighbor algorithm was 94.01%; higher than that of the Artificial Neural Network Back Propagation algorithm by 92.45%. Meanwhile, the end-to-end delay was at 6.09 seconds when using the KNN algorithm and at 6.84 seconds when using Artificial Neural Network Back Propagation Algorithm.

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Impact of Chinese mitten crab Eriocheir sinensis on blue mussel Mytilus edulis trossulus – laboratory studies of claw strength, handling behavior, consumption rate, and size selective predation

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Wójcik D. , Normant M. , Dmochowska B. , Fowler A.

Oceanologia

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2015

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tom No. 57 (3)

263--270

EN

We examined the claw strength, handling behavior, consumption rate, and size selective predation of the invasive Chinese mitten crab Eriocheir sinensis feeding on native Baltic Sea blue mussels Mytilus edulis trossulus during 24 h laboratory experiments. Single starved crabs were offered 15 mussels (five mussels in three length classes) at a time. The total number of mussels consumed by a single crab increased significantly (P < 0.05) with the experimental time from 1.7 ± 0.7 # mussels crab−1 h−1 after 4 h to 0.2 ± 0.7 # mussels crab−1 h−1 after 24 h. The highest consumption rate was observed within the first 4 h, and it decreased significantly (P < 0.05) during the experiment. This was most likely due to the crabs being starved before the start of the experiment. E. sinensis can also harm blue mussel shells by crushing them without further consumption. The mean daily damage, and not consumption, by a single crab was 0.9 ± 1.4 of 11–40 mm mussels. The claw strength of E. sinensis ranged from 1.50 to 20.43 N (mean 8.51 ± 5.93 N) and was significantly correlated (P < 0.05) with sex and both claw size and carapace size. The study showed that E. sinensis may be able to impact the native M. edulis trossulus population abundance in the coastal Baltic waters either through direct predation or indirect mortality by damaging (crushing) the shell.

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Population structure, morphometry and individual condition of the non-native crab Rhithropanopeus harrisii (Gould, 1841), a recent coloniser of the Gulf of Gdańsk (southern Baltic Sea)

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Hegele-Drywa J. , Normant M. , Szwarc B. , Podłuska A.

Oceanologia

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2014

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tom No. 56 (4)

805--824

EN

The aim of this study was to characterise the introduced North American Harris mud crab Rhithropanopeus harrisii, which occurs in the Gulf of Gdańsk, Poland (southern Baltic Sea). Of the 920 specimens caught between 2006 and 2010, males and females made up 44 and 40% respectively, whereas juveniles (<4.4 mm carapace width) comprised 16%. Overall carapace widths ranged from 1.96 mm to 21.40 mm (mean 9.03±4.11 mm). Ovigerous females (mean 11.12±2.76 mm) were present in the population from June to October. Most of the adult specimens collected (n = 158) had carapace widths between 10.1 and 12.0 mm. The wet weight of R. harrisii varied from 0.005 to 4.446 g (mean 0.410±0.569 g). Females exhibited a negative allometric increase in weight (b = 2.77), males an isometric increase in weight (b = 3.02). The condition factor (K) in R. harrisii varied from 0.02 to 0.08 (mean 0.05±0.01).

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Invasive and non-invasive glucose monitoring systems: a review and comparative study

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Bader H. D. , Jarjees M. S. , Ahmed B. T.

Przegląd Elektrotechniczny

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2023

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tom R. 99, nr 11

114--120

EN

As the incidence of diabetes has expanded worldwide in recent years, an increasing number of patients are experiencing pain and infections because to the invasive nature of the majority of commercial glucose measurement systems. The availability of reliable, low-cost, painless, noninvasive technology will promote patient compliance to routine blood glucose monitoring. The life of the diabetic patient will thereafter significantly improve. Several technologies have been proposed and developed by scientists and researchers in an attempt to enhance their effectiveness. This study reviewed both invasive and non-invasive glucose monitoring techniques, with an emphasis on optical methods. Non-invasive glucose monitoring devices that are painless, sensitive, and transportable are being suggested and developed to better understand glucose levels.

PL

Ponieważ częstość występowania cukrzycy wzrosła na całym świecie w ostatnich latach, coraz większa liczba pacjentów doświadcza bólu i infekcji ze względu na inwazyjny charakter większości komercyjnych systemów pomiaru glukozy. Dostępność niezawodnej, niedrogiej, bezbolesnej i nieinwazyjnej technologii ułatwi pacjentom przestrzeganie rutynowego monitorowania stężenia glukozy we krwi. Życie pacjenta z cukrzycą ulegnie następnie znacznej poprawie. Kilka technologii zostało zaproponowanych i opracowanych przez naukowców i badaczy w celu zwiększenia ich skuteczności. W badaniu tym dokonano przeglądu zarówno inwazyjnych, jak i nieinwazyjnych technik monitorowania glikemii, z naciskiem na metody optyczne. Sugerowane i opracowywane są nieinwazyjne urządzenia do monitorowania glukozy, które są bezbolesne, czułe i przenośne, aby lepiej zrozumieć poziomy glukozy.

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Predicting the potential invasive range of raccoon in the world

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Farashi A. , Naderi M. , Safavian S.

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2016

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tom Vol. 64, nr 4

594--600

EN

Invasive alien species are considered to be one of the most important causes for the extinction and the reason for diminishing of the wild native species. Considering that nowadays the raccoon (Procyon lotor, Linnaeus 1758) is found in several European and Asian countries where it can amplification its ranges remarkably, but it is actually native to North and Central America. Here, we use the Maxent model to generate a preliminary map of the potential distribution of the raccoon around the world and enumerate its relative risk of invasion across all countries. In a study, MaxEnt predicted a significantly large area as the eco-climatically suitable habitat for the raccoon in the world. The predicted habitats are consistent with the wide-ranging habitat associations of the raccoon in its well-established sites. The results identified the hotspots of the raccoon invasion and indicated the possible dispersal pathways. Results also showed that both precipitation and temperature variables were strongly correlated with the raccoon distribution and the species would be absent in cold environments with average sub-zero temperatures.