Stingless bees in a temperate climate: oviposition behavior and duration of ontogenic development stages inMelipona colimana(Hymenoptera: Meliponini)

2015 ◽  
Vol 54 (3) ◽  
pp. 255-259 ◽  
Author(s):  
José O Macías-Macías ◽  
J Javier G Quezada-Euán
Keyword(s):  
Stingless Bees ◽  
Oviposition Behavior ◽  
Temperate Climate ◽  
Development Stages ◽  
Ontogenic Development

scholarly journals Foraging behavior, environmental parameters and nests development of Melipona colimana Ayala (Hymenoptera: Meliponini) in temperate climate of Jalisco, México

2016 ◽  
Vol 77 (2) ◽  
pp. 383-387 ◽  
Author(s):  
J. O. Macías-Macías ◽  
J. M. Tapia-Gonzalez ◽  
F. Contreras-Escareño
Keyword(s):  
Critical Period ◽  
Stingless Bees ◽  
Sustainable Use ◽  
Environmental Parameters ◽  
Temperate Climate ◽  
Foraging Activity ◽  
Major Activity ◽  
Tropical Weather ◽  
Activity Season ◽  
Minor Activity

Abstract Melipona colimana Ayala is an endemic species inhabiting temperate forests of pine and oak of south of Jalisco in Mexico. During a year, it was recorded every 15 days foraging activity, environmental parameters and the development of colonies of M. colimana in its wild habitat. For five minutes every hour from 7:00 to 21:00, the bees that entered and left the hive and bringing pollen and resin were registered. Every hour the relative humidity, temperature, wind speed and light intensity was recorded and related to foraging activity. Additionally, the weight of the colonies recently transferred to wooden boxes, the number of brood combs, honey pots and pollen were registered. The time of beginning and ending of the foraging activity differs from the reports of stingless bees of tropical weather and the same happens with the pollen collection. The environmental parameters that affect other tropical stingless bees in the foraging activity also affect M. colimana in temperate climate. It was determined that the major activity season and the presence of more pollen pots in the colony is from November through February, for what it could be the best time of the year for the division and obtainance of new colonies, while the critical period of minor activity and pollen flow was during rainy season. These data may be useful for the future sustainable use of this species in temperate climate.

MODERN EQUIPMENT FOR DETERMINING TRACTOR-SPEED PROPERTIES OF THE VEHICLE: CHARACTERISTICS’ ANALYSIS IN LABORATORY CONDITIONS

2019 ◽  
Vol 16 (3) ◽  
pp. 276-289
Author(s):  
N. V. Savenkov ◽  
V. V. Ponyakin ◽  
S. A. Chekulaev ◽  
V. V. Butenko
Keyword(s):  
Environmental Performance ◽  
Operating Conditions ◽  
Special Role ◽  
Development Stages ◽  
Advantages And Disadvantages ◽  
Force Transfer ◽  
Characteristics Analysis ◽  
And Performance ◽  
Loading Devices ◽  
Structural Solutions

Introduction. At present, stands with running drums are widely used for various types of tests. Power stands play a special role. Such stands take the mechanical power from the driving wheels of the car. This simulates the process of movement of the vehicle under operating conditions. Such equipment has various designs, principles of operation and performance. It is also used in tests that are different by purpose, development stages and types: research, control, certification, etc. Therefore, it is necessary in order to determine the traction-speed, fuel-efficient and environmental performance characteristics.Materials and methods. The paper provides the overview of the power stands with running drums, which are widespread on the domestic market. The authors carried out the analysis of the main structural solutions: schemes of force transfer between the wheel and the drum; types of loading devices; transmission layout schemes and features of the control and measuring complex. The authors also considered corresponding advantages and disadvantages, recommended spheres of application, demonstrated parameters and characteristics of the units’ workflow, presented components and equipment.Discussion and conclusions. The authors critically evaluate existing models of stands with running drums. Such information is useful for choosing serial models of stands and for developing technical tasks for designing or upgrading the equipment.

Pengembangan Pembelajaran Model Blended Computer Based Learning (BCBL) Tentang Turunan Fungsi untuk Meningkatkan Kemandirian Belajar Siswa SMA

2019 ◽  
Vol 2 ◽  
Author(s):  
M. Safrudin ◽  
Sutaryat Trisnamansyah ◽  
Tb. Abin Syamsuddin Makmun ◽  
Deni Darmawan
Keyword(s):  
High Schools ◽  
Simulation Experiment ◽  
Computer Assisted ◽  
Development Stages ◽  
Computer Based Learning ◽  
Self Reliance ◽  
Computer Based ◽  
Systematic Development ◽  
Learner Activity

The aimed of this studied was developed learning through computer-assisted as BCBL. Result of this studied have been stated that: (a) the potential of five high schools in Karawang districts supported the implementation of BCBL development, (b) planning of BCBL development through a systematic development stages from preparation, production, simulation, experiment, and publication, (c) the implementation result of BCBL learning through revision tested were learner activity and higher autonomy. Keywords: BCBL; Independence Self-reliance; Student Competence.

Sending out Biased Signals: an Appropriate Proposition for Pain?

2019 ◽  
Vol 32 (2) ◽  
pp. 108-110 ◽  
Author(s):  
E. Besserer-Offroy ◽  
P. Sarret
Keyword(s):  
Side Effects ◽  
Acute Pain ◽  
Gold Standard ◽  
Pain Treatment ◽  
Opioid Analgesics ◽  
Mu Opioid Receptor ◽  
Clinical Development ◽  
Mu Opioid ◽  
Development Stages ◽  
The Past

In the past few years, several biased ligands acting at the mu-opioid receptor were reported in the literature. These agonists are aimed at reducing pain while having fewer side effects than morphine, the gold standard of opioid analgesics. In this mini-review, we describe and discuss the recent advances in mu-biased ligands actually in preclinical and clinical development stages, including the latest U.S. Food and Drug Administration review of oliceridine, a biased mu-agonist for moderate to severe acute pain treatment developed by the company Trevena.

Pengembangan Prototipe Piranti Lunak Sistem Informasi Manajemen Kegiatan Perekayasa Dengan Microsoft Excel

2014 ◽  
Vol 5 (2) ◽  
pp. 54-60
Author(s):  
Ivransa Zuhdi Pane
Keyword(s):  
Information System ◽  
Software Engineering ◽  
Management Information ◽  
Microsoft Excel ◽  
Development Stages ◽  
Engineering Activity ◽  
Engineering Information ◽  
Analysis Design ◽  
Index Terms ◽  
Further Development

Management of engineering activities based on information systems is expected to increase Engineer’s perfomances in executing the daily tasks. The software of such management information system should be built on the platform which is easy to use and adaptable to the dynamics of engineering activity management in the future. Software engineering, consisting of analysis, design and implementation, was carried out to realize a prototype which is ready to be applied in the further development stages. Index Terms - engineering activity, Engineering, information system, software engineering.

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