bluuebunny/crossref_metadata_2025 huggingface dataset:
Further Studies on Helminth Parasites of Fish in Asa Dam, Kwara State, Nigeria
Authors: Junaid A.A. , Junaid O.Q. , Shuaib M. J. , Kolawole A.A. , Adamu F. , Bello L.H. , Omotosho J.S.
Published: April 2023

Studies on parasites in fish have been a great concern for over a decade now due to disease conditions, overall nutritive devaluation and huge economic  loss that resulted from parasitic infections. Added to the potential of infected fish to be a source of infections to man and other animals. The present  study is, however, designed to ascertain the parasitic infection in fish from Asa Dam, Kwara State, Nigeria. Atotal number of 196 fish belonging to 10  families and 18 species were examined for helminth infection with an overall prevalence rate of 31.10%. Parasites were recovered from the skin, gills,  body cavity, intestine, and liver of the fish host. Trematode was the most prevalent parasite group found in the fish host and represented 79.5% of the  isolated parasites, followed by Cestode (7.14%), and Acanthocephalan was the least group (0.4%) recovered. Most of the Trematodes were recovered from  T. zillii and H. fasciatus (109 and 56 respectively), while C. anguillaris, C. senegalensis, C. gariepinus and C. obscura have no cases of trematode.  2.55% of the cestodes were recovered from C. gariepinus while the overall index of infection was significantly high in T. zillii (48.90%) and H. fasciatus  (40.44%). The overall prevalence of parasites examined in relation to sex indicates that males had 33.7% females had 28.4% prevalence accordingly with  no significant difference (P> 0.05). This finding indicates that there is a high parasitic load as evident by the infection rate on the examined fishes, as such  adequate measures should be put in place to reduce and prevent the parasites from spreading.
Mutant DHFR Prevalence and Pyrimethamine Resistance among Asymptomatic Adolescents in Kwara State
Authors: Obaniyi K.A. , Sunday O.J. , Oso G.O. , Olalubi O.
Published: April 2023

Plasmodium falciparum malaria remains a leading public health problem in sub-Saharan Africa and its control is seriously challenged by drug resistance.  Resistance to sulfadoxine-pyrimethamine is mediated by point mutations in genes encoding the target enzymes dihydrofolate reductase (pfdhfr) and  dihydropteroate synthase (pfdhps). Blood from a total of 176 subjects aged 11-19 years from Ilorin East and Irepodun Local Government areas (LGAs) was  examined for mutant alleles of the Plasmodium falciparum dihydrofolate reductase gene by polymerase chain reaction (PCR) at codon 51 and 108  respectively. Rapid Diagnostic Test kits were used for the malaria test. Of the 176 participants, 73 (41.5%) subjects tested positive for malaria parasite  while 95 (54.0%) tested negative. For both N51I and S108N SNPscreening, mutant alleles were dominant over the wild type. The Iponrin community  (Ilorin East LGA) recorded the highest percentage of mutant alleles 14 (33.33%) of the N51I SNP, while the Igbonla community (Irepodun LGA) had the  least number of mutant alleles 8 (19.04%). On the other hand, the Alakuko community recorded the highest number of alleles 14 (31.80%) for S108N  mutant while the Igbonla community (Irepodun LGA) had the least number of mutant alleles 8 (18.18%). There was widespread pyrimethamine resistance  among the studied population and the malaria parasite remains persistent among the studied population. Therefore, there is a need for  monitoring antimalarial drug resistance in Nigeria for prompt management of the antimalarial drug resistance menace.
Prevalence and risk factors for prenatal parasitic infections and anaemia among pregnant women in Kaduna State, Nigeria
Authors: Omenesa R.L. , Dibal D.M. , Abba A.M. , Oyong A.I. , Umar Z. , Kereakede E.
Published: April 2023

In developing nations, anaemia is one of the most prevalent medical conditions. It has long been known that parasite infection during pregnancy is one  of the main causes of anaemia and an elevated risk of maternal mortality. To ascertain the prevalence and risk factors related to parasite infections and  anaemia among pregnant women receiving prenatal care in some selected public health facilities in Kaduna State, Nigeria, an eleven-month cross-  sectional study of 180 consenting pregnant women was conducted from February to December 2017. A standardized questionnaire was used to interview  the sampled pregnant women. Stool and blood samples of each consented pregnant woman were collected. Formal-ether sedimentation  technique, thin and thick blood smears and haematocrit packed cell volume capillary methods were used to screen intestinal helminth parasites,   plasmodium species and Packed Cell Volume (PCV) respectively. The result obtained showed parasitic infections prevalence of 102(56.7%) among the  study population. Prevalence of Plasmodium species, hookworm, Ascaris lumbricoides and those with co-infection all occurred at 47.2%, 16.7%, 17.8% and  25.0% respectively. Age, educational level, trimester and parity were all significant predictors of Plasmodium species prevalence (p<0.005). Similarly,  parity and educational level were significantly (p<0.005) associated with the prevalence of intestinal parasites and co-infection. Anaemia was present in  40.0% of the examined pregnant women. Trimester and educational level were highly significant (p<0.001) predictors of anaemia among the sampled  pregnant women. Plasmodium species were the most common parasitic species associated with anaemia as 43.1% of Plasmodium species-infected  pregnant women had anaemia compared to those with intestinal helminth infection (30.6%) and co-infection (13.3%). However, statistical analysis  revealed a significant association (p<0.05) between the prevalence of anaemia and intestinal helminth infection. Therefore, measures such as improved  sanitation and health education are needed to lessen the prevalence of parasitic infections and parasite-related anaemia in the study area.
Screening for Pathogenic Trypanosomes in Cattle and Camels Slaughtered at Zango and Kawo Abattoirs, Kaduna State, Nigeria
Authors: Enwezor F.N.C. , Olanrewaju T.O. , Bizi R.L. , Kugama M.A. , Abraham O.A. , Yusuf R.J. , Salawu M. J. , Jarmai K.Y. , Abubakar S. , Saidu M.A. , Onogwu O.J. , Tijjani A.A. , Sarki C.D. , Abdullahi D. , Sabo H. , Ibrahim H. , Asongo I.C.
Published: April 2023

African trypanosomosis remains one of the major diseases affecting food security and human healthy living in sub-Saharan Africa. This study screened  domesticated animals for the presence of pathogenic trypanosomes in 1,050 slaughtered animals comprising 858 and 100 cattle respectively from Zango  and Kawo abattoirs and 92 camels from Zango as Kawo abattoir neither slaughters nor sell camel meat. Both abattoirs are government-owned  and located in Kaduna metropolis, Kaduna State, Nigeria. The animals examined were sourced from Bauchi, Yobe, Katsina, Kaduna, Kano, and Chad  Republic. Blood samples were collected from each animal at the point of slaughter and examined using the buffy coat technique and Leishman-stained  thick film for trypanosome identification. Packed cell volume (PCV) determination was conducted to assess the level of anaemia. Results indicated that 25  cattle and 2 camels (27) had an overall trypanosome infection rate of 2.57%. The trypanosomes observed were mainly Trypanosoma brucei, Trypanosoma  congolense, and Trypanosoma vivax. This study showed that sources of livestock slaughtered at various abattoirs can be a useful indicator  in quantifying trypanosomosis risk. Continuous sensitization and awareness creation among the herders at the grass-root level is recommended for  effective disease management towards increased livestock production and productivity required to sustain the rural economy and improve the  livelihoods of the local populace.
Performance of Malaria Rapid Diagnostic Test Carried Out by Community Medicine Distributors to Guide Home Management of Malaria in Ona-Ara Local Government Area of Southwest Nigeria
Authors: Funwei R.I. , Olusola F.I. , Afonne-Bembir C. , Badejo J.A. , Ogunsesin T. , Ajayi, I.o , Jegede A.S. , Falade C.O.
Published: April 2023

The World Health Organization recommends parasite-based diagnosis of malaria before the administration of artemisinin based combination therapy (ACT). Trained community medicine distributors (CMDs) constitute a credible option in healthcare delivery in resource-limited and hard-to-reach settings.  This study evaluated the performance of mRDT, microscopy and PCR in the diagnosis of malaria among febrile under-5 children in rural South-western  Nigeria. One thousand and forty-three (1,043) febrile children aged 3 – 59 months were enrolled on this study as part of a larger one. The CMDs collected  finger prick blood samples and performed mRDT, prepared thick blood smears for malaria microscopy and blood spots on filter paper for PCR assays.  Malaria was detected in 78.7%, 69.2% and 55% by mRDT, PCR and microscopy, respectively. The sensitivity of mRDT was 88.2% versus 92.5% while  specificity was 42.2% versus 38.2% against PCR and microscopy, respectively. The PPV, NPV and diagnostic accuracy were 88.2% versus 64.8, 61.7% versus  80.6% and 74.0% versus 68.1% respectively. Levels of agreement with PCR and microscopy were fair (κ-value = 0.336 versus 0.322). PCR detected  97.8% P. falciparum, 4.4% P. malariae and 2.5% P. ovale. Trained community medicine distributors can effectively performed malaria rapid diagnostic tests  to guide appropriate home management of malaria in resource-limited settings.
Prevalence of Gram-negative bacteria and their antibioticresistance pattern at tertiary care hospital Amreli Gujarat India
Authors: Sanjeev K. , Krina V.
Published: April 2023

No Abstract
Effects of milking machine settings and teat liners on bovine udder health
Authors: Vermaak P. , Petzer I.M. , Karzis J.
Published: April 2023

The purpose of milking machines is to harvest milk at an optimum speed while maintaining cow comfort and preserving teat defence mechanisms against the invasion of mastitis pathogens, thus making machine settings critical in dairy herds. The various settings and combinations for milking machines were reviewed to enable operators to optimize them to preserve teat canal integrity and minimize mastitis. All databases of Web of Science and relevant websites were used to document machine settings and teat liners. All vacuum levels in milking systems need to be monitored. In addition, liners, milk yield, and automated cluster removal switch-point settings need to be regarded as bearing a risk of teat damage. They affect milking speed and vacuum levels at total, peak, and over-milking. An equilibrium should be reached between optimal milking speed and risk of teat damage. An increased switch-point setting shortens milking time and decreases overmilking and claw vacuum to preserve teat-canal integrity. Analysis of milk flow dynamics with a VaDia instrument highlights opportunities to improve milking protocols and equipment functions that align with the physiology of the cow. This knowledge can be applied on individual farms, in which herd milk yield, parlour layout, milking machine system, parlour management, and economics should be considered to obtain a balance between milking efficiency, udder health, and cow comfort. Standards for switch-point settings were identified in this review.
Effects of biomacromolecules on growth, digestibility, digestive enzyme activity, antioxidation, and immunity in broilers
Authors: Wang R.F. , Wang Y. , An X.P. , Ji X. , Du J. , Hu Y.C , Guo T. , Zhang J. , Gao A.Q. , Qi J.W.
Published: April 2023

This study aimed to evaluate the effects of two biomacromolecules, fermented wheat bran polysaccharides (FWBPs) and sodium humate (SH), on growth performance, nutrient digestibility, digestive enzyme activity, antioxidant status, and immunity of broilers. A total of 144 male, one-day-old Arbor Acres broilers were randomly divided into three dietary groups: control (CON), 0.4% FWBPs, and 0.1% SH, with six replicates of eight birds. The FWBPs and SH groups had a greater body weight (BW) at 21 and 42 d, average daily weight gain (ADG) in the starter period, average daily feed intake (ADFI) in the overall period, and feed-to-gain ratio (F:G) in the grower period. However, the ADFI was decreased by FWBPs supplementation and increased by SH supplementation in the grower period. The dry matter (DM) and organic matter (OM) digestibility were higher in the SH group at 21 d. At 21 d, the FWBPs group had an increased duodenal trypsin and serum glutathione peroxidase (GSH-Px) activity and immunoglobulin M (IgM) concentration, and a decreased liver malondialdehyde (MDA) concentration. The SH group had increased duodenal lipase activity, serum IgM, and interleukin-2 concentrations but decreased liver MDA concentrations. At 42 d, FWBPs and SH supplementation decreased duodenal trypsin and chymotrypsin and serum superoxide dismutase activity. Jejunum chymotrypsin activity and liver MDA content were decreased in the SH group. In conclusion, dietary FWBPs or SH supplementation during the starter period can improve growth performance and nutrient digestibility and enhance antioxidant capacity and immunity of broilers.
Effects of production stage and fertility traits on milk production of pasture-grazed Holstein and Jersey cows in a Mediterranean-type climate region
Authors: Bangani N.M. , Muller C.J.C. , Dzama K. , Cruywagen C.W.C , Imbayarwo-Chikosi V.E.
Published: April 2023

The aim of this study was to compare the milk production of Holstein and Jersey cows on pasture as affected by parity, lactation stage, calving season, age at first calving, and calving interval. Test-day lactation records of 122 Holstein and 99 Jersey cows, varying from parities 1 to 6, were collected using standard milk recording procedures. Cows were managed and kept as one herd on kikuyu over-sown with ryegrass pasture and received 7 kg of concentrate (as fed) containing 170 g/kg crude protein per day. Across parities, the means for milk yield, milk fat, milk protein, dry matter intake, and body weight were 23.8 ± 6.2 and 17.9 ± 4.4 kg/day; 3.89 ± 0.03 and 4.66 ± 0.03%; 3.17 ± 0.02 and 3.59 ± 0.02%; 17.8 ± 2.6 and 14.4 ± 2.1 kg/day; and 567 ± 3.49 and 411 ± 3.84 kg for Holstein and Jersey cows, respectively. Milk yield increased by 26.5% in Holsteins and 23.7% in Jerseys from first to fourth lactation. Mean lactation number was 2.5 ± 0.15 and 3.0 ± 0.17; test-day milk yield for summer was 21.2 ± 0.28 and 16.5 ± 0.31 kg/day; and winter was 21.3 ± 0.28 and 16.4 ± 0.32 kg/day; age at first calving was 26.4 ± 0.3 and 26.2 ± 0.3; and inter-calving period was 13.9 ± 0.18 and 13.2 ± 0.17 months, for Holstein and Jersey cows, respectively. With inter-calving periods of 13 months, 13.1 to 15.0 and above 15 months, the 305-day Holstein cow milk yield was 7324 ± 181, 7768 ± 193, and 7927 ± 211 kg, whereas that of Jerseys was 5400 ± 135, 5621 ± 244, and 5724 ± 234 kg, respectively. In this study, Jerseys performed better than Holsteins in lactation number and calving interval. Holsteins, however, had a higher increase in milk yield from first to fourth lactation, whereas age at first calving did not differ.
Influence of feeding on different types of pasture on the fatty acid profile and health indices of goat milk
Authors: Mierliță D.
Published: April 2023

The main objective of the present research was to study the change in fatty acid (FA) composition of milk fat in a Carpathian local breed during grazing on two plots characterized by a different cover with herbaceous species and woody (only herbaceous species: H and high woody species cover: W) allowances with or without concentrate supplementation (Cs: 500 g concentrate/head/d). Thus, four treatments resulted: H-U: only herbaceous species-unsupplemented, H-Cs: only herbaceous species-concentrate supplementation, W-U: high woody species-unsupplemented, W-Cs: high woody species-concentrate supplementation. Individual milk production (n = 10) was recorded daily, and milk samples were collected weekly for a seven-week period (June to August) and analysed for fat, protein, lactose, urea-N, and FAs. Milk production was not influenced by the type of pasture. The daily production of milk, 3.5% fat-corrected milk, and protein level increased and the content of fat and urea-N reduced with concentrate supplementation, whereas the content of lactose was similar. The botanical composition of pasture markedly influenced the FA profile of goat milk fat. The goats grazing in scrubland (W group) produced milk fat with higher concentrations of monounsaturated FA (C18:1 t11, vaccenic acid, VA) and polyunsaturated FA (omega 3 and conjugated linoleic acid, CLA) and lower concentrations of hypercholesterolaemic FA (HFA; C12:0 + C14:0 + C16:0). Regardless of the botanical composition of the pasture, milk fat of unsupplemented grazed goats had the lowest proportion of HFA, as well as the highest proportions of C18:1 c9, VA, RA (rumenic acid, C18:2 c9,t11), and total n-3 FA compared to the Cs groups (supplemented with concentrate). Concentrate supplementation increased short-chain FA and saturated FA content. In contrast, percentages of the nutritionally desirable FA (C18:3 c9, c12, c15; C18:2 c9, t11, C18:1 t11; C20:5n-3; C22:5n-3, and total n-3 FA) were substantially lower, whereas levels of total n-6 FA, n-6:n-3 ratio, atherogenicity index (AI), and thrombogenicity index (TI) were substantially higher in milk from Cs groups. No interactions occurred between pasture type and concentrate supplementation for milk FA composition. It is concluded that the milk from goats kept unsupplemented on the natural pasture were better in terms of nutraceutical parameters advantageous to human nutrition than the milk produced by concentrate supplementation.
Effect of various pH levels on the sperm kinematic parameters of boars
Authors: Rivas Cindy U. , Ayala María E. , Aragón Andrés
Published: April 2023

The objective of this work was to identify the effects of pH on the structure of kinematic sperm subpopulations using commercial doses of boar semen diluted in Androstar Plus extender. We adjusted the pH value of the diluted semen samples to 7.4, 7.6, 7.8, and 8.0, and evaluated motility parameters using an open-source computer-assisted sperm analysis system. We evaluated the dataset of the kinematic parameters of the individual sperm for the effects of pH on the average values overall and on the subpopulations of sperm. To identify these subpopulations, we reduced the dimensionality of the dataset through principal component analysis followed by hierarchical clustering. We then compared the results for the kinematic parameters across the dataset and in the subpopulations with the average of the corresponding control (i.e., the basal pH value). We found that increasing the pH did not affect the proportion of motile sperm but did affect the manner in which they moved, rendering their movement more linear. The progressive motility increased relative to the control at all pH values above 7.1, while the proportion of sperm with low motility increased at pH 7.8. We distinguished three sperm subpopulations. The proportion of sperm in Subpopulation 1 increased at pH values of 7.8 and 8.0, with the sperm being characterized by low velocity and high values for linearity. The sperm in Subpopulation 3, by contrast, were relatively few but showed relatively high curvilinear velocity. In this study, we demonstrated the presence of subpopulations of boar sperm that responded differentially to changes in pH.
Dietary supplementation with vegetable oils with low n-6:n-3 polyunsaturated fatty acid ratios improves the intramuscular fat and fatty acid composition of growingfinishing pigs
Authors: Jiang S.S. , Wei F. , Abulahaiti D.L.Y.E. , Tian C.C. , Fu L. , Lu J.X. , Zhang G.H.
Published: April 2023

This study investigated the effects of different n-6:n-3 polyunsaturated fatty acid (PUFA) ratios in pig diets using vegetable oil supplementation on growth  performance, carcass characteristics, meat quality, and fatty acid composition in the longissimus dorsi muscle (LM) and subcutaneous adipose  tissue (SAT) of pigs. Fiftyfour cross-bred growing pigs (Large White × Landrace × Duroc; 45.03 ± 1.72 kg) were randomly assigned to one of three  isoenergetic diets: the 1) basal diet (control), 2) RAPO diet (diet supplemented with 4.5% rapeseed oil), and 3) MIXO diet (diet supplemented with 2.25%  rapeseed oil and 2.25% linseed oil), with n-6:n-3 PUFA ratios of approximately 13:1, 7:1, and 2:1, respectively. The experiment lasted 42 days. The RAPO  and MIXO diets did not affect the growth performance and carcass characteristics of pigs, while the content of low-density lipoprotein (LDL), triglycerides  (TGs), and glucose (GLU) in the serum decreased substantially. Intramuscular fat (IMF) content increased by 19.25% and 20.11% in the LM of pigs fed the  RAPO and MIXO diets, respectively, and lower cooking loss and drip loss of meat were observed only in pigs fed the MIXO diet. The RAPO and MIXO diets  decreased the stearic acid and palmitoleic acid levels, increased the total PUFA levels (including those of α-linolenic and linoleic acid), and decreased the  n-6:n-3 PUFA ratios in LM and SAT. However, the MIXO diet was more effective in improving the fatty acid composition. A mixed oil diet with an n6:n-3  PUFA ratio of 2:1 is an effective measure for improving meat quality.
Evaluation of Phyllanthus niruri L. powder on growth performance, haematology, and intestinal morphology of broilers
Authors: Pasaribu T. , Sukirman M. , Sani Y. , Bakrie B. , Rusdiana S.
Published: April 2023

The objective of this study was to evaluate the dietary supplementation of Phyllanthus niruri L. powder (meniran powder, MeP) on the productivity, haematology profiles, and intestinal morphology of broilers. A total of 200 female, one-day-old chickens were allocated to five treatments randomly, with four replications (10 birds per replicate): control, without antibiotic and MeP; T2, Zn-bacitracin 0.05%; T3, MeP 0.02%; T4, MeP 0.03%; and T5, MeP 0.05%. A completely randomized design was employed. The results showed that MeP supplementation at 0.02%, 0.03%, and 0.05% did not affect the body weight, feed intake, feed conversion ratio, haemoglobin, packed cell volume; and lymphocyte, red blood cell, heterophil, monocyte, eosinophil, and basophil counts, but at 0.03% and 0.05%, appeared to reduce white blood cells (WBCs) compared to those in the control and Zn-bacitracin groups. Microscopically, MeP supplementation in the diet increased the height and cellular growth of the mucosal villi of the duodenum, jejunum, and ileum, but the villi appeared fragile as mucosal epithelial cell necrosis was noted in the taller villi. Thus, it is concluded that MeP did not affect broiler performance and haematology profiles, except that the number of WBCs at 0.03% and 0.05% was less than that in the control and Zn-bacitracin groups
Differential gene expression in the Longissimus dorsi of Nguni and Bonsmara bulls finished on low and high energy diets
Authors: Linde D.A. , Van Marle-Köster E. , Scholtz M.M. , Gonda M.G. , Gonzalez-Hernandez J.L. , MacNeil M. D.
Published: April 2023

Objectives of this research were to examine differential gene expression profiles of Nguni and Bonsmara cattle fed diets differing in their energy density. The ultimate goal was to improve understanding of the mechanisms that underlie differences between these breeds and the potential interactions of the differences between breeds with the nutritive environment. The experiment was designed as a 2 × 2 factorial arrangement of breed and diet (12.5 MJ/kg DM vs. 10.9 MJ/kg DM). The initial feeding trial had 10 bull calves per treatment. However, financial constraints limited RNA sequencing to six animals per treatment and the RNA generated from one animal was of insufficient quality to be useful. Transcripts with false discovery rate P-values <0.05 and fold-changes >2.0 were considered significant. Bonsmara had a faster growth rate, heavier live and carcass weights, and better feed conversion compared to Nguni. However, lower levels of fat were observed in Nguni. Twenty different genes were differentially expressed, with three exhibiting interaction effects and all 20 having differences in transcript abundance between the breeds. A dietary effect was only observed for the one gene and that gene was also subject to an interaction effect with breed. Observed differences in gene expression between Bonsmara and Nguni by several genes affecting the structure or function of the mitochondria imply differences in energy metabolism between the breeds. Interaction effects on the abundance of some gene transcripts indicate the need to consider the diet when evaluating breed differences and conversely, consider breed when evaluating diets.
Detabuizacja, prowokacja i kontrowersyjność w utworach współczesnych czeskich prozaiczek
Authors: Car Anna
Published: April 2023

Głównym celem pracy jest przedstawienie i omówienie zagadnień związanych z kontrowersyjnym i prowokacyjnym przekraczaniem granic kulturowych w odniesieniu do tabu dotyczącego erotyki wraz z niepruderyjną seksualnością, do cielesności, gwałtu i przemocy domowej. Problem ten ilustrują utwory czołowych czeskich pisarek, takich jak Jakuba Katalpa, Petra Hůlová i Radka Denemarková. Analizy i interpretacje dzieł uzupełniają reakcje czeskich krytyków, często bardzo wzburzone. Temat artykułu odnosi się nie tylko do utalentowanych czeskich pisarek, ale zwraca też uwagę na zjawisko „pisania przez kobiety” stojące w opozycji do „literatury kobiecej”.

Detabooisation, Provocation and Controversiality in the Works of the Modern Czech Female Prose Writers

The main purpose of the paper is to present and discuss issues related to crossing controversial and provocative cultural boundaries with regard to the taboo pertaining to eroticism along with non-prudish sexuality, corporality, rape and domestic violence. This problem is illustrated by the works of the leading Czech female writers such as: Jakuba Katalpa, Petra Hůlová and Radka Denemarková. The analyses and interpretations of the works are complemented by the reactions of Czech critics, which are often very agitated. The topic of the article relates not only to the talented Czech female writers, but also draws attention to the phenomenon of “writing done by women” standing in opposition to “women’s literature”.
Extremal problems of double stars
Authors: Győri Ervin , Wang Runze , Woolfson Spencer
Published: April 2023

In a generalized Tur\'an problem, two graphs $H$ and $F$ are given and the
question is the maximum number of copies of $H$ in an $F$-free graph of order
$n$. In this paper, we study the number of double stars $S_{k,l}$ in
triangle-free graphs. We also study an opposite version of this question: what
is the maximum number edges/triangles in graphs with double star type
restrictions, which leads us to study two questions related to the extremal
number of triangles or edges in graphs with degree-sum constraints over
adjacent or non-adjacent vertices.
Zwischen "Genuss" und "Ekel"
Authors: von Borries Bodo
Published: April 2023

Kunst und Historie, Emotionen und Geschichte - passen die wirklich zusammen, haben sie überhaupt etwas miteinander zu tun? Geschichtslernen stellt - das sagt unsere eigene Erfahrung - einen nicht-nur-kognitiven Prozess dar. Emotionen, Ästhetik, Moral, Politik, Imagination, Triebdynamik usw. haben ihren Anteil an Auslösung, Verlauf und Ergebnis; sie treiben nicht nur Lernen an, sondern ändern sich auch durch Umgang mit Geschichte. Unterrichtspraxis und akademische Geschichtsdidaktik haben diesen Zusammenhang bisher weitgehend ausgeblendet. In vorliegenden Band werden an exemplarischen Fällen die Urgewalt und Unvermeidlichkeit der nicht-nur-kognitiven Momente des Geschichtslernens aufgezeigt, um anschließend anzudeuten, wie Ästhetik und Emotionalität in Unterrichtspraxis und geschichtsdidaktischer Theorie ehrlicher reflektiert und integriert werden könnte.
Der Milchkarton und andere Widrigkeiten des Lebens
Authors: Krennerich Michael
Published: April 2023

Das Leben, in das man so hineingeboren wird, steckt voller Widrigkeiten. Michael Krennerich stolpert durchs Familienglück, erinnert sich an Kindheit und Jugend und erzählt von ungewöhnlichen Begegnungen. Ein Band liebenswerter Glossen, geschrieben mit feinem Humor und viel Selbstironie vom einem ermatteten, aber scharfen Beobachter.
Ein kleiner literarischer Leckerbissen: Schokolade mit Chili für Zwischendurch. Achtung: Suchtgefahr!
Argumente am Stammtisch
Authors: Hufer Klaus P
Published: April 2023

Stammtischparolen: Sie kommen plötzlich und aus der Mitte des Alltags. Wer darauf reagieren will, fühlt sich häufig überrumpelt und überfordert. Was sind Stammtischparolen? Wie wirken sie? Warum gibt es sie überhaupt? Und was kann ihnen entgegen gesetzt werden? Klaus-Peter Hufer zeigt Merkmale, Muster und Handlungsmöglichkeiten bei der Konfrontation mit „Stammtischparolen“ auf und macht Mut, im Alltag couragiert aufzutreten, wenn man mit ihnen konfrontiert wird. Das Buch beruht auf der langjährigen Erfahrung des Autors mit seinem „Argumentationstraining gegen Stammtischparolen“.
Wirtschaft demokratisch gestalten lernen
Authors: Oppenhäuser Holger ,   Autor*innengruppe Bildungsmaterial
Published: April 2023

Mit aktivierenden Methoden, kooperativen Lernformen sowie didaktischen Hilfestellungen und Differenzierungsangeboten sollen Menschen mit unterschiedlichen Lernvoraussetzungen gestärkt werden, politisch-ökonomische Prozesse zu verstehen und sich an ihrer demokratischen Gestaltung zu beteiligen. Themen sind u.a. globale Arbeitsverhältnisse, Gemeingüter, Finanzmärkte und Klimagerechtigkeit. Das Material ist an einer bundesländer- und schulformübergreifenden Analyse von Curricula orientiert und füllt zugleich Leerstellen. Ökonomie wird mit Ökologie, Geschlecht, Migration und Demokratie verknüpft. Dabei werden Gestaltungsvorschläge und Aktionsformen sozialer Bewegungen zur Diskussion gestellt.
Posen, Hypen, Inszenieren
Authors: Paul Josephine
Published: April 2023

Menschen inszenieren sich auf immer wieder ähnliche Weise an bestimmten Orten der Welt. Bilder dieser Inszenierungen verbreiten sich rasant in Social Media und führen zu regelrechten Hypes um diese Socially Hyped Locations. In die dabei stattfindenden Konstruktionsprozesse sind unter anderem Schülerinnen und Schüler eingebunden. Dieses Buch richtet sich daher an Lehrkräfte, welche sich auf eine theoretische Reise durch das Phänomen einlassen wollen und einige anregende Unterrichtsbausteine an die Hand bekommen möchten, um das Phänomen möglichst anregend für den eigenen Unterricht umzusetzen.
Automatic Water Supply and Monitoring Using IoT
Authors: Rama Krishna Yarlagadda , Pasha Ahmed Shaik Shakeel , Imran Syed , Shaheed Syed Abdul
Published: April 2023

The use of IoT technology in the water supply and monitoring system aims to tackle the issues of insufficient and unreliable water supply, as well as water wastage, prevalent in developing nations. The system comprises four sub-tanks, one overhead tank, an Arduino Uno board equipped with ultrasonic sensors to detect water level, an L298N motor driver module for regulating the submersible motor pump, and an ESP8266 Wi-Fi module for internet connectivity. The Firebase platform-based mobile app enables users to view the water levels in each tank and operate the motor. The water supply system is designed to manage the water supply efficiently, prevent water wastage, and ensure the water levels in all tanks are continuously monitored in real time. The four ultrasonic sensors measure the water levels, and the L298N motor driver module operates the submersible motor pump. The system regularly checks the water levels and activates the motor pump when the water level in any of the sub-tanks falls below a certain threshold level. Once the water level reaches the upper threshold level, the motor pump is deactivated. Users can view the water levels in all tanks on the mobile app and operate the submersible motor pump manually. This system provides a dependable and efficient approach to managing water supply, ensuring the water levels in each tank are continuously monitored and maintained in real time. The low-cost design makes this an affordable solution for water supply and monitoring in developing nations, promoting effective management of water resources.
Prueba DOI
Authors: Adminfumcojs Adminfumcojs
Published: April 2023

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El entorno deportivo: percepciones según el género, edad y deporte
Authors: Valladarez Herrera José Enrique , García-Herrera Darwin Gabriel , Ávila-Mediavilla Carlos Marcelo
Published: April 2023

El entorno que rodea al atleta está sumergido en diferentes elementos predominantes quienes influyen positiva o negativamente en el deportista. Ante ello, el objetivo principal de este estudio es determinar la percepción del entorno deportivo y la repercusión en los procesos de entrenamiento de cada deporte, mediante la formulación de encuestas aplicadas en diferentes escuelas de preparación deportiva: Boa Panqui y Club Deportivo Los Pumas del cantón El Pangui, en las disciplinas de baloncesto y fútbol. La investigación tiene un enfoque cualitativo de tipo descriptivo no experimental de corte transversal. La muestra de este estudio fueron un total de 128 sujetos implicados en el deporte infantil, pertenecientes a tres colectivos: deportistas, padres y entrenadores. Entre los cuales, 44 deportistas están en una edad de 11 a 12 años, 23 deportistas entre 13 y 14 años, 27 personas adultas en una edad comprendida de 20 a 30 años y 34 personas entre los 31 a 50 años; 80 encuestados se orientan a la disciplina del fútbol y 48 a la disciplina de baloncesto. Finalmente 82 sujetos son de sexo masculino y 46 de sexo femenino. Según los resultados encontrados se concluye que no existe una buena percepción del entorno deportivo buen arbitraje, deportividad, entrenadores educadores y padres respetuosos, con relación a la edad, el género y el deporte.
Influence of technology adoption on organizational performance: evidence from Paraguayan microenterprises
Authors: Ferrer-Dávalos Raúl Marcelo
Published: April 2023

The use of technology can assist microenterprises in increasing their productivity, competitiveness, and effectiveness, as well as improving customer satisfaction. The goal of this study was to compare the administrative performance of participating microenterprises before and after implementing a computerized management system. Thirty-two microenterprise owners and managers were selected for this case study and participated in four phases of the action research method: an exploratory phase to identify needs, a planning phase during which the first performance measurement was conducted, an implementation phase, and finally a post-implementation evaluation phase in which a new performance measurement was performed. Based on the specific needs identified in the exploratory phase, a tailor-made management software was designed and implemented in the participating microenterprises. The Student’s T-test results show a statistically significant positive change. Most of the participants agree that the implementation has contributed to a significant improvement in administrative tasks and processes, making their overall work more efficient, more accurate and with greater speed. This indicates that a correct implementation of information and communication technologies based on specific needs has a positive impact on the administrative performance of microenterprises. The method used in this study could be useful for successful technology adoption in similar organizations.
Sistem Pakar Mendiagnosa Gangguan Koneksi Internet Berbasis Web Menggunakan Algoritma Rete
Authors: Hasanah Lailatun , Buulolo Efori
Published: April 2023

Expert System to Diagnose Internet Connection Disorders is a series of systems that utilize digital technology to do special analysis. At PT.Telkom the Sumbagut Infratel Division already has its own website, but in providing expert system information about connection disruptions is still via the telephone, therefore a web-based expert system is designed, to facilitate the community in finding solutions to internet connection disruption. With the creation of this expert system, it is expected to provide solutions to current problems. In other words, this expert system can be said as a digital technician. The expert system to diagnose internet connection problems has been designed and implemented using the Visual Basic 2008 program and Microsoft Access as the database while the algorithm used is the Rete algorithm.This application is only admin that can process data input, edit data, and delete data. While the user can only consult and find information about internet connection disruption and the solution, with the program design that the authors make this hopefully can be used by all parties.
Optimasi Cluster Pada K-Means Clustering Dengan Teknik Reduksi Dimensi Dataset Menggunakan Gini Index
Authors: Zarkasyi Muhammad Imam , Mawengkang Herman , Sitompul Opim Salim
Published: April 2023

In K-Means Clustering, the number of attributes of a data can affect the number of iterations generated in the data grouping process. One of the solutions to overcome these problems is by using a reduction technique on the dimensions of the dataset. In this study, the authors apply the Gini Index to perform attribute reduction on the data set to reduce attributes that have no effect on the dataset before clustering with K-Means Clustering. The dataset used to be tested as a testing instrument in this research is Absenteeism at work obtained from the UCI Machine Learning Repository, with 20 attributes, 740 data records and 4 attribute classes. The results of the tests in this research indicate that the number of iterations obtained from the comparison of tests using the K-Means in a Conversional (Without Attribute Reduction) is obtained by the number of 9 iterations, while the K-Means with attribute reduction with the Gini Index obtains the number of iterations totaling 6 iterations. Clustering evaluation was calculated using Sum of Square Error (SSE). The SSE value in K-Means Clustering in a Conversional (Without Attribute Reduction) is 1391.613, while in K-Means Clustering with attribute reduction with a Gini Index, it is 440.912. From the results of the proposed method, it is able to reduce the percentage of errors and minimize the number of iterations in K-Means Clustering by reducing the dimensions of the dataset using the Gini Index
Kmeans Clustering Segmentation on Water Microbial Image with Color and Texture Feature Extraction
Authors: Kristanto Sepyan Purnama , Hakim Lutfi , Yusuf Dianni
Published: April 2023

Image segmentation is one of the analytical processes for digital image recognition, where this process divides the digital image into several unique regions based on homogeneous pixels. The process of homogeneous grouping images is based on several colour, texture and shape features. Colour in digital image processing is very important because colour has many information humans can easily understand. Colour has various features, combining colour intensity and grey (grayscale) and binary (black and white) values. However, the colour feature extraction process has many weaknesses. If the object used has a very small si[1]ze and range area, the use of colour features needs to be combined with extraction, and the segmentation process can be maximized. This study uses colour and texture features in the extraction process. It uses bacterial objects (microbes) from water, with limited image quality and objects that tend to be difficult to identify. The colour space feature extraction process is combined with a Gabor filter so that the segmentation process produces high-quality accuracy. Good. The Gabor filter used in this study is combined with the L*a*b space vector to increase accuracy in the segmentation process. The results showed that the use of texture features resulted in an increase in accuracy of 17.5% by testing the cluster value of 1.2.
User Satisfaction Analysis of Paylater Services Using K-Means Algorithm in Campus
Authors: Anwar Syahrul , Hikmawati Nina Kurnia , Juliane Christina
Published: April 2023

In the 4.0-based digital era, the use of e-commerce is increasing. The convenience provided to e-commerce users is increasingly being considered by companies engaged in e-commerce. Paylater is a fairly new payment method among Indonesian e-commerce, so research is needed to improve the service and satisfaction of e-commerce users, especially those using the paylater payment method. The purpose of this study is to analyze user satisfaction with paylater services using the k-means algorithm on campuses in region 3 Cirebon. This research is also to find out the benefits of paylater used by students. This research is a type of quantitative research using the k-means algorithm to determine the classification of paylater user satisfaction in several e-commerce applications at several universities in region 3 Cirebon which is then clustered. The results of the study show that Cirebon students in the Campus 3 area are satisfied with services from companies or online shops that have paylater payment facilities
Analisis Perbandingan Metode ROC-WASPAS dan Entropy-WASPAS dalam Keputusan Pemberian Reward Kinerja Pegawai Hotel
Authors: Aldisa Rima Tamara
Published: April 2023

Employees are human resources in government or companies whose quality and capacity must always be improved. Assessment of employee performance is very necessary, this aims to get an assessment of employee performance achievements and give awards to employees who have good performance. In order for the assessment of performance achievements to be more effective, a method is needed in generating decisions. In making a decision to present prizes, performance, needs, the best work that must meet criteria such as Work Results, Integrity, Discipline, Ethics and Creativity. In this study, a comparative analysis of the combination of Rank Order Centroid (ROC) and Weighted Aggregated Sum Product Assessment (WASPAS) methods was carried out as well as a combination of Entropy and WASPAS. The ROC and Entropy methods are used to generate weight values, while the WASPAS method is a ranking method that requires weights. The results showed that alternative A5 was the best alternative with the highest score with a value of 2.958 on the ROC-WASPAS method and a value of 2.968 on the Entropy-WASPAS method
Implementasi Algoritma Support Vector Machine Terhadap Klasifikasi Pose Balet
Authors: Romindo Romindo , Barus Okky Putra , Pangaribuan Jefri Junifer , Pratama Yudhistira Adhitya , Wiliem Evelyn
Published: April 2023

Ballet is considered as one of the most difficult dance due to its technical posture demanded. If performed without guidance it may cause bad posture to ballerina and some serious injuries. A model in identifying different ballet poses is developed with artificial intelligence in order to tear down this barrier. The main purpose of this paper is to demonstrate a methodology that simplified Ballet Pose Recognition using an opensource framework called MediaPipe and a machine learning algorithm called Support Vector Machine. How the model work is it will pass through two stages: first, it extracts data points from an image dataset using the MediaPipe Pose Estimation library, and then it preprocesses the data, trains, validates, and tests it using the Support Vector Machine algorithm to do some pose classification. The model is trained in seven distinct ballet poses, including First Position, Second Position, Third Position, Fourth Position, Fifth Position, Tendu Devant, and Tendu Derrière. This is purposely done in order to assess the competence of the classification model. An accuracy score of 87% is achieved from the ballet pose classification model and is developed to work on images and live videos.
Pemanfaatan Machine Learning dengan Algoritma X-Means untuk Pemetaan Luas Panen, Produktivitas, dan Produksi Padi
Authors: Hakim Irma , Rafid M. , Anggraini Fitri
Published: April 2023

Rice plants are essential for the world, especially Indonesia because it is a rice-producing plant that is useful as a staple food for its people. A decreased harvest area, production, and rice productivity can affect food availability. Therefore, this research aims to classify and map the harvested area, production, and productivity of rice in Indonesia based on each province. The research data used in this paper is data on the harvested area (ha), production (tons), and rice productivity (Ku/ha) by Provinces in Indonesia for 2020-2022 obtained from the Indonesian Central Bureau of Statistics website. In this study, the algorithm used is X-Means Clustering with the help of the Rapid Miner application. The results of this study are in the form of grouping or mapping of harvested area, production, and productivity of rice, divided into 3 (three) regions, including 1. Harvested Area (divided into five groups: Very high Harvested Area consists of 3 provinces, High Harvested Area consists of 1 province, Medium Harvest Area consists of 3 Provinces, Low Harvest Area consists of 8 Provinces, and Very low Harvest Area consists of 19 Provinces 2. Rice Production Area (divided into five groups: Very high rice production consists of 3 provinces, Rice production High rice production consists of 1 province, Medium rice production consists of 3 Provinces, Low rice production consists of 8 Provinces, and Very low rice production consists of 19 Provinces 3. Regions of Rice Productivity (divided into five groups: Very high rice productivity consists of 6 provinces, High Rice Productivity consists of 13 provinces, Medium Rice Productivity consists of 7 Provinces, Low Rice Productivity consists of 4 Provinces, and Very Low Rice Productivity consists of 4 Provinces. This can be information for the Indonesian government, especially for the respective provincial governments, to be able to maintain the harvested area, production, and productivity of rice in Indonesia to remain stabel.
Deteksi Kesehatan Janin Menggunakan Decision Tree dan Feature Forward Selection
Authors: Sulihati Indah , Syukur Abdul , Marjuni Aris
Published: April 2023

Fetal health is very important, it is important for prospective mothers to know from an early age, until now a mother’s sense of ignorance abpout fetal health is very lacking and can result in fetal death. This is due to the lack of curiosity possessed by prospective moyhers and the lack of socialization and infrastructure from related parties about fetal health. Basically, the growth and development of a prospective fetus is very important so that it can be born healthy and without any obstacles at all.The pupose of this study was to detect fetal health using a decision tree classification algorithm with forward feature selection. This experiment was conducted using a public dataset of 2.126 patient data. The results showes that classification using a decision tree algorithm using a decision tree algorithm without feature selection resulted in an accuracy of 89.84%. While the use of the forward selection feature in this decision tree algorithm produces an accuracy of 91.06%.This shows that the use of the forward selection feature can increase accuracy by 1.22%.