TRANSPORT PLATFORMS OF MODERN LAND-MOBILE ROBOTS FOR CLANDESTINE CONDUCT OF BATTLE OPERATIONS AND TRANSPORTATION OF LOADS

The current level of development of robotic systems of armaments, military and special equipment is characterized by an accelerated transition to their construction on a modular basis. Due to this relatively small nomenclature of initial blocks-modules of lower levels can provide a large variety of the type of land-mobile robotic complexes of specialized functionality. There is an opportunity to quickly adapt the necessary robotic military equipment to specific combat conditions, which guarantees the reliable performance of the assigned combat missions. It is proposed to equip the transport platforms for robotic systems of armament, military and special technics by electromechanical engines on the basis of autonomous drive modules with driven forced electric motors on the basis of rare-earth neodymium permanent magnets. At the same time, record high performance transshipment capacity is achieved, which dramatically increases the ability to overcome difficult road impediments. The article deals with the design features of modular transport platforms for modern robotized weapons, military and special equipment systems, which are conditioned by the need for reliable delivery of weapons, ammunition, equipment, foodstuffs and medical supplies to the personnel on the line of contact with the enemy in difficult geoclimatic conditions. It is shown that the necessary quality of realization of the assigned of combat tasks is ensured by the application of the installation on the platforms of autonomous electromechanical drives of driving wheels.

Zig-Zag matrix for resolvable nested balanced incomplete block designs

This paper presents a method of construction of designs which utilizes special matrix structures referred to as Zig-zag. The Zig-zag matrix structures give rise to initial blocks for resolvable nested balanced incomplete block designs (RNBIBDs). The construction of the designs for \((v)\) treatment number being a perfect square with specific interest on \((k)\) block size as a prime number are presented. The designs constructed are of high efficiency with minimum blocks. A generalized information matrix is also obtained.

Self-controlled goal setting and trait anxiety on learning to climb the Bachman ladder

The purpose of this study was to compare the performance on climbing Bachman’s ladder rungs in adolescents with high and low levels of trait anxiety (TA) who self-set their goals. The 40 participants who took part in the experiment were selected from a primary sample of 465 adolescents. Two groups were formed (high TA and low TA) and the task consisted of climbing the rungs of the Bachman’s ladder. The design was comprised of four experimental phases: 1) acquisition (15 blocks of 10 trials), 2) immediate transfer (one block of 10 trials); 3) delayed transfer (one block of 10 trials), 4) retention, (one block of 10 trials). The analyses of variance indicated significant effects for the main factor “block” in acquisition; the performance in the initial blocks was worse than in the last blocks. No group differences were detected on either acquisition or transfer and retention. Thus, our findings suggest that the practice undertaken through an active engagement of the learner via self-setting of goals enhanced the performance of all participants during acquisition. The lack of differences in performance between high and low levels of TA was probably due to the offset caused by the self-setting of goals.

Autoestabelecimento de metas e ansiedade traço na aprendizagem de subida de degraus na escada de Bachman

The purpose of this study was to compare the performance on climbing Bachman’s ladder rungs in adolescents with high and low levels of trait anxiety (TA) who self-set their goals. We tested the hypothesis that those who self-set goals and scoring low in TA would show superior performance on retention and transfer than those who self-set goals scoring high in TA. The 40 participants [male and female; age 15.81±1,01 (M±SD) years] who took part in the experiment were selected from a primary sample of 465 adolescents. Two groups were formed (high TA and low TA) and the task consisted of climbing the rungs of the Bachman’s ladder. The design was comprised of four experimental phases: 1) acquisition (15 blocks of 10 trials), 2) immediate transfer (one block of 10 trials); 3) delayed transfer (one block of 10 trials), 4) retention, (one block of 10 trials). The analyses of variance indicated significant effects for the main factor “block” in acquisition; the performance in the initial blocks was worse than in the last blocks. No group differences were detected on either acquisition or transfer and retention. Thus, our findings suggest that the practice undertaken through an active engagement of the learner via self-setting of goals enhanced the performance of all participants during acquisition. The lack of differences in performance between high and low levels of TA was probably due to the offset caused by the self-setting of goals.Key Words: Goal setting, self-control, anxiety, adolescents, motor learning.Â

Henry Cheke's Freewyl

In the third volume of E. K. Chambers' Elizabethan Stage is a short notice of Henry Cheke and his Certayne Tragedie written first in Italian, by F. N. B. entituled, Freewyl, and translated into English, by Henry Cheeke. Although Chambers, probably confused by the entry in the Stationers' Register on May 11, 1561, of a book “of Frewill,” quotes the title with John Tysdale as printer, none of the extant copies bears any mention of printer, place or date. It has been assumed in the past that the entry to Tysdale referred to Cheke's translation, but Dr. Harold Stein has pointed out to me that it must actually refer to one of a series of translations from Jean Veron issued by Tysdale at this time, the title in question reading: A most necessary treatise of free will. Cheke's book is listed under 1589 in Herbert's edition of Ames' Typographical Antiquities, but no printer is assigned and no reason given for the date except the statement that the revolt of the Netherlands is referred to in the play, whereas as a matter of fact it is the revolt of Germany from papal authority in the time of Luther. The question has been pretty well settled, however, by Mr. William A. Jackson, who has made a detailed study of the copy in the Pforzheimer collection. He writes me that the book is certainly the work of Richard Jugge and that a comparison of some of the smaller initial blocks in the Cheke volume with the same ones in Eden's translation of Peter Martyr's History of travayle in the west and east Indies, printed by Jugge in 1577, shows that the blocks are noticeably more worn and broken in the latter volume. Cheke's book was presumably printed, therefore, before that date and after 1572, since the dedicatee, Lady Cheynie of Toddington, did not acquire that title until her husband was raised to the peerage as Baron Cheynie of Toddington in 1572. I incline to a date close to the earlier year.