International Journal of Biology最新文献_第8页

Responses of some Escherichia coli clinical isolate strains with multiple drug resistance and overexpressed efux pumps against efux pump inhibitors 一些多药耐药和过表达流出血泵的大肠杆菌临床分离株对流出血泵抑制剂的反应

International Journal of Biology Pub Date : 2020-08-15 DOI: 10.26577/ijbch.2020.v13.i1.08

E. Altınöz, Ergin Murat Altuner

引用次数: 1

Studying the impact of anthocyanin extract from black rice on regenerative abilities in the zebrafish Danio rerio 研究黑米花青素提取物对斑马鱼再生能力的影响

International Journal of Biology Pub Date : 2020-08-15 DOI: 10.26577/ijbch.2020.v13.i1.10

L. Lebedeva, Z. Aytasheva, T. Bergès, B. Zhumabaeva, Zh. Agadil, A. Nuketay

引用次数: 0

Ants Can Associate a Symbol with a Number of Elements Through Conditioning 蚂蚁可以通过条件作用把一个符号和一些元素联系起来

International Journal of Biology Pub Date : 2020-05-05 DOI: 10.5539/ijb.v12n3p1

M. Cammaerts, R. Cammaerts

引用次数: 8

Biological Treatment of Wastewater from Production Enterprises 生产企业废水的生物处理

International Journal of Biology Pub Date : 2020-05-05 DOI: 10.5539/ijb.v12n3p14

Buriev Sulaymon Burievich, Yuldoshov Laziz Tolibovich

引用次数: 0

Reviewer acknowledgements for International Journal of Biology, Vol. 12, No. 2 《国际生物学杂志》第12卷第2期审稿人致谢

International Journal of Biology Pub Date : 2020-03-31 DOI: 10.5539/ijb.v12n2p72

L. Bai

引用次数: 0

A Model of Animals Phenotype with Superior Growth 一种具有优越生长表型的动物模型

International Journal of Biology Pub Date : 2020-03-31 DOI: 10.5539/ijb.v12n2p65

V. L. Stass

{"title":"A Model of Animals Phenotype with Superior Growth","authors":"V. L. Stass","doi":"10.5539/ijb.v12n2p65","DOIUrl":"https://doi.org/10.5539/ijb.v12n2p65","url":null,"abstract":"The aim of this study is to model and analyse a dynamic of feed conversion coefficient in pigs' ontogeny. Feed conversion is a process that couples feed intake, and growth. While there has been much research into the problem, a quantitative relation between the traits has not been revealed. The study considers feed as nutrient weight rather than its energy or a separate feedstuff. A main task of the research is to find out an analytical function between the traits. It is expected that the study will provide a new insight into the problem.\u0000\u0000Animals are open systems; they need feed to sustain life, to grow and develop. It is plausible to suppose that growth of animal is a function of feed conversion and body weight. To find out and analyse this function a deterministic model of growth was built. The model was built as a dynamic system that describes the growth of individual animals. Both continuum and discrete-time modelling techniques are employed. The model is based on a data set obtained in experiments and field observations. Theoretical notions about the growth have been used for the model analyses.\u0000\u0000It is shown that in ontogeny feed conversion and growth rate are functionally related traits. Between the traits, there is a nonlinear relation that concerns the growth rate, and feed conversion coefficient. In the model, the feed conversion coefficient is the variable that determines the dynamic of growth.","PeriodicalId":13849,"journal":{"name":"International Journal of Biology","volume":"96 3 1","pages":"65"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79425927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Evidence for Initiation of Post-Zygotic Reproductive Isolation between Drosophila ananassae and D. pallidosa as Indicated by Reduction in the Fertility of Hybrid Males 果蝇与白斑果蝇合子后生殖分离的证据:杂种雄性繁殖力的降低

International Journal of Biology Pub Date : 2020-03-30 DOI: 10.5539/ijb.v12n2p41

Roshni Singh, B. N. Singh

{"title":"Evidence for Initiation of Post-Zygotic Reproductive Isolation between Drosophila ananassae and D. pallidosa as Indicated by Reduction in the Fertility of Hybrid Males","authors":"Roshni Singh, B. N. Singh","doi":"10.5539/ijb.v12n2p41","DOIUrl":"https://doi.org/10.5539/ijb.v12n2p41","url":null,"abstract":"There are several barriers to preclude the gene flow between diverging populations. On the basis of their temporal nature, these can be broadly categorized into two forms: pre- and post-zygotic. Post-zygotic reproductive isolation can manifest in the form of reductions in hybrid fertility. Keeping this fact in view, in the present study, we studied sterility in hybrids of D. ananassae and D. pallidosa. Surprisingly a distinguishable pattern of infertility was found in the hybrids. This pattern, referred to as Haldane’s rule, is often observed in hybrids of recently diverged populations or species. Reduction in the fertility of hybrids provides the clue of incipient kind of post-zygotic reproductive isolation in these two sibling species. This is the first report of hybrid sterility in this species pair. However, hybrid sterility is not very prominent especially when compared to that of other species pairs with the similar divergence time. Thus, on the basis of our results, we conclude that either sexual isolation between these sibling species is sufficient and does not require the aid of post-zygotic isolation to preclude gene flow or rate of divergence between D. ananassae and D. pallidosa is very slow in comparison to other species pair or even races of some species.","PeriodicalId":13849,"journal":{"name":"International Journal of Biology","volume":"7 1","pages":"41"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75000462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Studies on Mating Preference and Productivity in Drosophila ananassae and D. pallidosa and Their Hybrids 果蝇和白斑果蝇及其杂交种的交配偏好和生育力研究

International Journal of Biology Pub Date : 2020-03-30 DOI: 10.5539/ijb.v12n2p52

Roshni Singh, B. N. Singh

{"title":"Studies on Mating Preference and Productivity in Drosophila ananassae and D. pallidosa and Their Hybrids","authors":"Roshni Singh, B. N. Singh","doi":"10.5539/ijb.v12n2p52","DOIUrl":"https://doi.org/10.5539/ijb.v12n2p52","url":null,"abstract":"During speciation different kinds of reproductive barriers originate to preclude gene flow between diverging populations. Reproductive isolation or barriers to gene flow can be categorized by the temporal nature of their effect: pre-zygotic barriers occur before fertilization and post-zygotic barriers occur after fertilization. In this study, we studied each components of reproductive isolation between D. ananassae and D. pallidosa, including both pre-zygotic and post-zygotic barriers. Because it might be possible that by dissecting these barriers one can get the answers of many unresolved questions related to the process of speciation of these two sibling species. We reported premating isolation because females of both D. ananassae and D. pallidosa were more discriminative for mating against the alien males rather than conspecific males, and this discrimination was much stronger in case of D. ananassae females for being the ancestral and cosmopolitan species. We also did not find any decrease in the production of progeny or viable offspring in comparison to conspecific males, indicating a lack of postmating prezygotic isolating barriers. Further, there is no complete lack of intrinsic post-zygotic isolation between these species or not complete presence of post-zygotic isolation, as both the hybrid sons were producing less number of progeny in comparison to all the crosses but it is near to significant but not significant and this is contrasting to the results of a previous study.","PeriodicalId":13849,"journal":{"name":"International Journal of Biology","volume":"41 1","pages":"52"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78805822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Shape, Color, Size and Relative Position of Elements on Their Counting by an Ant 元素的形状、颜色、大小和相对位置对蚂蚁计数的影响

International Journal of Biology Pub Date : 2020-03-17 DOI: 10.5539/ijb.v12n2p26

M. Cammaerts, R. Cammaerts

引用次数: 7

Young Ants Already Possess a Mental Number Line 年轻的蚂蚁已经有了一条心理数轴

International Journal of Biology Pub Date : 2020-01-16 DOI: 10.5539/ijb.v12n2p1

M. Cammaerts, R. Cammaerts

引用次数: 5