scholarly journals Zona pellucida in the process of fertilization and mammal embryonal development

2022 ◽  
Vol 78 (03) ◽  
pp. 6626-2022
Author(s):  
JADWIGA JAWORSKA-ADAMU ◽  
ALEKSANDRA KRAWCZYK ◽  
KAROL RYCERZ
Keyword(s):  
Zona Pellucida ◽  
Male Gamete ◽  
External Factors ◽  
Structure And Properties ◽  
Cortical Reaction ◽  
Embryonal Development ◽  
Acrosomal Reaction ◽  
Primary Attachment ◽  
Reproductive Rates ◽  
Internal And External Factors

In mammals, oocytes, fertilized eggs and pre-implantation embryos are surrounded by an acellular zona pellucida (zona pellucida – ZP). This structure has a fibro-spongy character but it undergoes constant modifications throughout its existence depending on many internal and external factors. ZP consists of glycoproteins marked as ZP1, ZP2, ZP3 and ZP4, the presence of which is species different. ZP1 and probably ZP4 molecules stabilize the fibrillary skeleton of the zona pellucida formed of ZP2 and ZP3 protein polymers which are ligands for specific spermatozoid receptors. The oligosaccharide chains of ZP3 are responsible for the primary attachment of the male gamete which induces the acrosomal reaction. ZP2 enhances this connection by secondary binding to an acrosome-free spermatozoid. Additionally, oviductal specific glycoprotein 1 which plays a role in interspecific oocyte-sperm interactions, appears around the postovulatory oocyte surrounded by ZP. In addition, this protein modifies the resistance of ZP to the action of proteases released as a result of the cortical reaction during polyspermia block. After fertilization, ZP not only protects the egg and then the embryo until implantation, but also has an embryotrophic effect. Understanding the molecular basics of the structure and properties of ZP can significantly improve animal fertility as well as reproductive rates.

Menumbuhkan Jiwa, Perilaku dan Nilai Kewirausahaan Dalam Meningkatkan Kemandirian Bisnis

MBIA ◽  
2019 ◽  
Vol 17 (2) ◽  
pp. 23-32
Author(s):  
Deddy Hendarwan
Keyword(s):  
Small Businesses ◽  
Positive Influence ◽  
External Factors ◽  
Entrepreneurial Behavior ◽  
Environmental Pressures ◽  
Entrepreneurial Spirit ◽  
Internal And External Factors ◽  
And Behavior ◽  
Ownership Rights ◽  
Attitudes And Behavior

Attitudes and behaviors are the unity of a person's character which is formed by habit everyday. Entrepreneurial behavior is influenced by internal and external factors. These factors are ownership rights (property right, PR), abilities / competencies (competency / ability,), and incentives while external factors include the environment thus Attitudes and behavior can be changed by oneself and / or there are environmental pressures / influences. there is an influence from within themselves and from outside the environment to associate then grow indi attitudes and specific behaviors. It is necessary to anticipate small businesses’ difficulties by conducting an empirical study  on  the  entrepreneurial  spirit,  entrepreneurial  values,  and  assessment  of entrepreneurial behavior that may affect the realization of independence efforts. This study  aims to  analyze the  influence of  entrepreneurial spirit  and entrepreneurial values on entrepreneurial behavior to create business independence. The findings show that the entrepreneurial spirit has a direct positive influence on entrepreneurial behavior and positive indirect effect on the business independence.

Constitutionalizing Sophisticated Racism: Israel's Proposed Nationality Law

2016 ◽  
Vol 45 (3) ◽  
pp. 40-51 ◽  
Author(s):  
Amal Jamal
Keyword(s):  
External Factors ◽  
Radical Right ◽  
The Political ◽  
Nation State ◽  
Right Wing ◽  
Internal And External Factors ◽  
Nationality Law

This essay analyzes the political motivations behind the Jewish Nation-State Bill introduced in the Knesset in November 2014, shedding light on the ascendancy of the Israeli political establishment's radical right wing. It argues that there were both internal and external factors at work and that it is only by examining these thoroughly that the magnitude of the racist agenda currently being promoted can be grasped. The essay also discusses the proposed legislation's long history and the implications of this effort to constitutionalize what amounts to majoritarian despotism in present-day Israel.

تدريس كتاب "المحادثة والمطالعة العربية الجزء الأول" في تنمية مهارة الكلام للمستوى بمعهد دار اللغة والدراسات الإسلامية سنينان باميكاسن

2019 ◽  
Vol 2 (2) ◽  
pp. 123-133
Author(s):  
Moh. Hasyim Asy'ari
Keyword(s):  
Arabic Language ◽  
External Factors ◽  
Teaching Material ◽  
Language Games ◽  
Research Use ◽  
Provisional Teachers ◽  
Internal And External Factors

The topic of this research is "Learning the Book of Al-Muhadasah Wa Muthala'ahAl-Arabiyah Juz Awwal for the Development of Maharah Kalam in the IslamicBoarding School Darul Lughah Waddirosatil Islamiyah, Seninan Akkor PelengaanPamekasan Madura, East Java". Every year there must be acceptance of newsantri in all of the rapidly developing huts in Indonesia, The new santri usuallyfind it difficult to speak Arabic because they don't know much about Arabicbefore entering pondok. This research aim to know the steps of learning and thepositive factors that influence the learning. This research use qualitative researchmethods. The results of this study are as follows: 1. Learning Steps to the Book"Al-Muhadasah Wa Muthala'ah Al-Arabiyah Juz Awwal" the teacher greets,remembering the students last lesson, giving new teaching material, the teacherreading the Muhadasah text and the students practiced the Muhadasah text thestudents were allowed to ask about the difficult mufrodat, the students translatedthe muhadasah text according to their abilities, then the teacher interpreted thewhole of the Muhadasah text. then the teacher gives training about sometimesthe teacher gives Arabic language games, the teacher tells students to memorize the muhadasah text and tells them to have two or two in front of the class, at the end of the lesson the teacher gives advice and motivation. 2. There are twopositive factors in the Learning of the Book "Al-Muhadasah Wa Muthala'ahAl-Arabiyah Juz Awwal" namely internal and external factors, internal factorsnamely: provisional teachers, the use of learning methodologies and appropriateteaching materials, students are eager to learn. External factors are: the scope ofthe Arabic language contained in the cottage.

Some reflections on social structure: Theoretical and practical aspects

2020 ◽  
Vol 18 (6) ◽  
pp. 1063-1078
Author(s):  
T.N. Skorobogatova ◽  
I.Yu. Marakhovskaya
Keyword(s):  
Service Industry ◽  
External Factors ◽  
Infrastructure Development ◽  
Social Infrastructure ◽  
Social Sphere ◽  
The Social ◽  
Study Results ◽  
The Republic ◽  
Internal And External Factors ◽  
The Impact

Subject. This article discusses the role of social infrastructure in the national economy and analyzes the relationship between the notions of Infrastructure, Service Industry and Non-Productive Sphere. Objectives. The article aims to outline a methodology for development of the social infrastructure of Russia's regions. Methods. For the study, we used the methods of statistical and comparative analyses. The Republic of Crimea and Rostov Oblast's social infrastructure development was considered as a case study. Results. The article finds that the level of social infrastructure is determined by a number of internal and external factors. By analyzing and assessing such factors, it is possible to develop promising areas for the social sphere advancement. Conclusions. Assessment and analysis of internal factors largely determined by the region's characteristics, as well as a comprehensive consideration of the impact of external factors will help ensure the competitiveness of the region's economy.

The dilemmas of the Israeli reality and the choice of war

2019 ◽  
Vol 2 (4) ◽  
pp. 151
Author(s):  
Bashir Hadi Abdul Razak
Keyword(s):  
Negative Impact ◽  
Arab World ◽  
External Factors ◽  
Political Movement ◽  
World Today ◽  
The World ◽  
Arab Israeli Conflict ◽  
Internal And External Factors

The Arab-Israeli conflict is among the longest and most complex conflicts in the world today, a conflict that transcends borders or a difference of influence. It is a struggle for existence in every sense. Since the establishment of Israel in 1948, one of the regional forces whose political movement is determined by the Arab world has become the result of the internal and external factors and changes that affect it. This entity is hostile to the Arabs, Which would have a negative impact on the regional strategic situation.

Analisis Partisipasi Petani dalam Asuransi Pertanian

2019 ◽  
Vol 2 (6) ◽  
pp. 793
Author(s):  
Mega Nabilla Ardiana ◽  
Ivanovich Agusta
Keyword(s):  
Program Implementation ◽  
Education Level ◽  
External Factors ◽  
Primary Data ◽  
Agricultural Insurance ◽  
Factors Affecting ◽  
Participation Level ◽  
Regression Test ◽  
Internal And External Factors ◽  
Program Data

Farmers participation is crucial for succeeding in the implementation of agricultural insurance in Indonesia. The purposes of this research are analyzing farmers' form and level of participation and also identifying some factors affecting farmer’s participation in agricultural insurance. The research was conducted in Curug Bitung Village, District of Nanggung, Bogor Regency involving 40 respondents. Primary data includes farmers characteristics, farmers participation form and farmers participation level as program beneficiaries. The data were processed using multivariable linear regression test. The results showed that the intensity of communication, age, education level, income level and length of stay did not significantly affect the participation level of farmers whose majority were at the level of no participation. Non-compliance occurs during program implementation. The form of participation shown by farmers in the program is varied.Keywords:  agricultural insurance, internal and external factors, farmers' participation ABSTRAK Partisipasi petani menjadi hal yang penting dalam rangka menyukseskan penerapan asuransi pertanian di Indonesia. Tujuan penelitian ini adalah menganalisis bentuk dan tingkat partisipasi petani dalam asuransi pertanian serta mengidentifikasi faktor-faktor yang memengaruhi partisipasi petani dalam program asuransi pertanian. Penelitian dilakukan di Desa Curug Bitung, Kecamatan Nanggung, Kabupaten Bogor dengan melibatkan 40 responden. Data primer meliputi karakteristik petani, bentuk partisipasi petani dan tingkat partisipasi petani penerima program. Data diolah menggunakan uji regresi linier multivariable. Hasil penelitian menunjukkan intensitas komunikasi, usia, tingkat pendidikan, tingkat pendapatan dan lama tinggal tidak berpengaruh secara signifikan terhadap tingkat partisipasi petani yang  mayoritas berada pada tingkatan tidak ada partisipasi. Ketidaksesuaian banyak terjadi selama penyelenggaraan program. Adapun bentuk partisipasi yang ditunjukkan petani dalam program bervariasi.Kata kunci: asuransi pertanian, faktor internal-eksternal, partisipasi petani

STRATEGI MENINGKATKAN LOYALITAS KONSUMEN MAKANAN KHAS KOTA CURUP KABUPATEN REJANG LEBONG

2019 ◽  
Author(s):  
Onsardi Onsardi
Keyword(s):  
Swot Analysis ◽  
Raw Materials ◽  
External Factors ◽  
Consumer Loyalty ◽  
Internal Factors ◽  
The Public ◽  
Typical Food ◽  
Internal And External Factors

The title of this study is the Strategy of Increasing Consumer Food Loyalty in CurupCity, Rejang Lebong Regency (Case Study in "Henvian" Typical Food Industry). Thisresearch is based on the importance of strategies in increasing business and consumerloyalty to products sold.Strategies to increase business and consumer loyalty can bedone with a SWOT analysis. Place of this research is the "Henvian" shop that sellstypical Rejang lebong food. The method used in this study is descriptive qualitative.Informants in this study were people who were considered to know for certain about theHENVIAN Specialty Food Store in Curup City, Rejang Lebong Regency. The dataanalysis technique used in this study is a SWOT analysis to determine the strengths,weaknesses, opportunities and threats in a typical Rejang Lebong food business.By using SWOT analysis techniques that consist of strengths (weakness), weaknesses(weakness), opportunities (opportnity) and threats (threath). The results of this studycan be concluded that the internal factors that are the strength of the marketing strategyare the quality of the product that is good at a price affordable to the public andtourists, service that is friendly and responsive to consumer needs, as well astechnological advancements that facilitate the promotion of business. Internal factorsthat are a weakness are often lack of stock, there are some products that do not meet thestandard packaging, the product shelf life is short, employees do not use uniforms.External factors that become opportunities are a fairly high economic community,abundant raw materials while external factors that are a threat are the manycompetitors, an unstable economy, the price of basic needs increases. Based on theresults of the SWOT analysis of internal and external factors, the strategy used is toimprove product quality by improving the appearance of packaging and quality ofcontent and quality of service by providing uniforms to employees and providingstandards of service to consumers. .Keywords: Strategy, Consumer Loyalty, SWOT

Gorontalo Province Tourism: Leading Sector In The Middle Of Weakness And Challenge

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Herwin Mopangga ◽  
Fitriaty Puhi
Keyword(s):  
Significant Contribution ◽  
Swot Analysis ◽  
Tourism Development ◽  
External Factors ◽  
The Other ◽  
Occupancy Rate ◽  
Regional Income ◽  
Sustainable Tourism Development ◽  
Tourism Sector ◽  
Internal And External Factors

Tourism shows a significant contribution to foreign exchange and regional income in Indonesia. Defined as a priority and leading sector in the RPJMD, tourism development in the Regencies and the Province of Gorontalo must measure the results, benefits and impacts for all stakeholders. Contribution to regional income (PAD) and the composition of internal and external factors in each of the leading destinations is needed for the purpose of determining the strategy and policy of sustainable tourism development. The study concluded that tourism sector was relatively small in its contribution to each PAD total by Regencies in Gorontalo Province. The low of PADsp is relevant to the low occupancy rate (TPK) of the hotel and the length of stay (LoS). The lack of retribution income from recreation and sports spot is relevant to the lack of activities to support the attractiveness such as art and cultural attractions and local products that can be souvenirs for tourists. Infrastructure facilities at leading tourism objects are relatively incomplete or do not meet tourism standards. The low of PAD, TPK LoS can also explain that the increase in tourists to Gorontalo is only a transit to the other tourist objects outside of Gorontalo Province.Keywords: Tourism, Leading Sector, Gorontalo, Income, Swot Analysis

Concluding Summary

2018 ◽  
Author(s):  
Carrie Figdor
Keyword(s):  
Social Sciences ◽  
External Factors ◽  
Cognitive Capacity ◽  
Human Cognition ◽  
Conceptual Foundation ◽  
The Social ◽  
New Research ◽  
Internal And External Factors ◽  
Conceptual Confusion

Chapter 10 provides a summary of the argument of the book. It elaborates some of the benefits of Literalism, such as less conceptual confusion and an expanded range of entities for research that might illuminate human cognition. It motivates distinguishing the questions of whether something has a cognitive capacity from whether it is intuitively like us. It provides a conceptual foundation for the social sciences appropriate for the increasing role of modeling in these sciences. It also promotes convergence in terms of the roles of internal and external factors in explaining both human and nonhuman behavior. Finally, it sketches some of the areas of new research that it supports, including group cognition and artificial intelligence.

Sign in / Sign up

Export Citation Format

Share Document