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Television research in the RSA has up to now been concerned mainly with the effect of television on the youth. The perspective in this study, however, moves to the family as a social context within which television viewing occurs. On the basis of a country-wide sample a number of White two-parent families, in which one of the children was a Std 8 pupil living permanently at home, were found. Schedules were developed and personal interviews were conducted with the mothers and their children. The findings indicated that the number of hours children devoted to watching television is related to the processes of family communication, normative control of television viewing in the family and family cohesion. The conclusion drawn from the study shows that although only a moderate amount of television viewing takes place in most families, it can still inhibit family communication unless parents deliberately encourage communication in their families. The family as a context of television viewing is identified as a...

The use of a broody hen treatment program resulted in an additional 13 eggs/hen over a 180-day production period in a randombred control population (RBC1) expressing a large amount of broody behavior and in a randombred control population (RBC2) showing a moderate amount of broodiness. The average gain in egg production obtained by treating hens for broodiness ranged from 5 to 21 eggs/hen in different years. Hens from medium-bodied and large-bodied lines were either not treated for broodiness (control), treated only from 4 to 8 weeks of production (partial broodiness; PB), or treated from 4 weeks of production throughout the entire laying period (full broodiness; FB). The medium-bodied lines originated from the RBC1 line, while the large-bodied lines were from the RBC2 line. Egg production of the PB hens from the medium-bodied lines did not differ (P>.05) from the controls. On the other hand, egg production of PB hens from the large-bodied lines did not differ (P>.05) from that of the FB hens. Treatment of broody hens had only minor effects on intensity of lay. The total days lost from broodiness decreased, and the effective length of the laying period increased with the FB treatment. The gains in egg production obtained by the FB treatment of the medium-bodied and large-bodied hens were 22 and 25 eggs/hen, respectively, when compared to the control groups.

The management of organizational conflict involves the diagnosis of and intervention in conflict at intrapersonal, interpersonal, intragroup, and intergroup levels. A diagnosis should indicate whether there is need for intervention and the type of intervention needed. In general, an intervention is designed to attain and maintain a moderate amount of conflict a various levels and to enable the organizational members to learn the styles of handling interpersonal conflict so that the individual, group, and overall organizational effectiveness are enhanced.

1. 1. Following electrophoresis, the hemoglobin patterns of Rana pipiens and R. blairi have essentially the same number and arrangement of components which differ somewhat between the species in their rates of migration. A moderate amount of polymorphism occurs in each species. 2. 2. The hybrid pattern is not simply additive but exhibits electrophoretically stable hybrid hemoglobins and deficiencies of some parental components. 3. 3. Of 53 backcross offspring, 77% represent parental patterns and 21% include hemoglobin components found in neither parental nor grandparental patterns. This suggests that the polypeptide loci are linked with some crossing over occurring between loci.

IT is fairly clear that, when I say "I like this" and "This is good," I do not mean the same thing. Even though I should reverse the position of the two relata in my expression of the former proposition and state the non-symmetrical relation intended in the equivalent form, "This is liked by me" unidiomatically or, in good English, by "This pleases me," the meaning of what I assert would not be logically equivalent to "This is good." True, it is certain that, if I actually believe the latter, I also believe the former; this must please me in some way: I approve of it. Here, however, we have only one-sided implication, not equivalence; B implies A, but A does not imply B. We shall now inquire how the actual judgments as made by me, viz. B:" This is good," and A: "I like this," differ. We may not be able to state all the respects in which the two are diverse, but some seem quite obvious. First, however, we must pause to note that judgments of both types are addressed to persons who are supposed to be able to grasp their meaning. If I am a solitary, they may be addressed to myself, and this case will be considered later on. Usually, however, the person addressed is another. Now, I am hardly likely to inform a blind person that I like Turner's painting, though perhaps, if he takes a kindly interest in me, he may be glad to know that I like something, even though he has no idea of what that object is. I certainly will not go on to inform him that Turner's pictures are good. It would not only be futile but cruel to discuss such a matter with him. There are also certain limits to the communication of such opinions to others prescribed by even a moderate amount of worldly wisdom. I may, indeed, inform a person who is very fond of contradicting what others say that I like this or that, because he can effectively silence me, only by proving me to be a liar; but I will not venture to declare to him that any thing is either good or bad. Still less likely am I to do so if I am his bete noire. He is sure to find reasons for disagreeing. In the cases in which we do communicate our thoughts both about what we like or dislike, or about what we think is good or bad, we can distinguish two groups: first, those in which we give information in good faith to others who presumably have not had the same opportunities as ourselves for forming an

Synovial tissue specimens from the joints of nine persons, determined to be normal by light microscopic studies, were examined with the electron microscope. The arrangement of microstructures within the synovial cell indicates a moderate amount of metabolic activity, and appears to be clonsistent with the production of mucopcdysaccharides. A process of active transport was observed between the syno'vial cell and the joint space. Incorporation of collagen into the general architecture is also described, and the technical problems are considered. Specimens de tissu synovial ab le articulationes de novem personas esseva examinate per microscopia electronic post determination de lor normalitate per microscopia optic. Ee disposition del microstructura intra le cellula synovial reflecte un grado moderate de activitate metabolic e pare esser apte al production de mucopolysaccharidos. Un processo de transport active esseva observate inter le cellula synovial e le spatio articular. Le incorporation de collageno in le architectura general es etiam deseribite. Problemas technic es discutite.

Experiments are described in which pure resistance networks were used to determine, by analogy, the temperature and stress distributions in a long tube whose cross-section had a rectangular outer boundary and a central circular hole. It is shown that the electrical analogy method is valuable for the solution of thermal stress problems and requires only a moderate amount of work.

A systematic study was conducted to determine the effects of prior uniform plastic strain, ϵp, on the mechanical and environmental properties of four high-strength steels ranging in strength from 80 to 200 ksi (550 to 1400 N/mm2): HY-80, HY-130, 12Ni-5Cr-3Mo maraging, and 10Ni-Cr-Mo-Co Q & T steels. Each steel was evaluated first in the unstrained condition, for reference purposes, and then after 1 and either 3 or 5 per cent plastic strain (ϵp), depending on the specific steel and uniform strain limit (ϵp,max). Standard tension and Charpy V-notch (CVN) specimens were used to characterize the mechanical properties. So-called precracked cantilever-beam specimens were used to evaluate both the relative fracture behavior in air (KIx) and the stress-corrosion-cracking (SCC) threshold behavior in synthetic sea water (KISCC); the KISCC value was determined under constant-load conditions (P = constant) using a nominal 1000-hr test duration. The results showed that, with increasing levels of plastic prestrain (ϵp), the mechanical properties were altered in a generally beneficial manner, and the KIx value decreased in a consistent manner, depending on the initial yield strength (σys) and the specific level of ϵp. The apparent KISCC value, however, did not follow any consistent pattern of behavior. The apparent KISCC for HY-80 steel (completely immune to SCC) was unaffected by ϵp, whereas the corresponding value for 12Ni-5Cr-3Mo maraging steel was increased and the values for the HY-130 and 10Ni-Cr-Mo-Co Q&T steels were decreased a moderate amount. It is emphasized that due to the limited specimen dimensions employed all KIx and apparent KISCC values must be interpreted on a relative, rather than an absolute, basis because they underestimate the corresponding intrinsic behavior KIC and true KISCC). For both the HY-80 and HY-130 steels, the degree of underestimation is substantial. The systematic manner by which such KIx and apparent KISCC values underestimate the true behavior as a result of insufficient test-specimen geometry is described as the KI-suppression effect. Supporting experimental evidence is presented to describe the general extent to which KI suppression occurs in proportional-geometry test specimens. A clear perspective is thus provided for the proper interpretation of the present results and those of a similar nature on other materials. The necessity of recognizing and understanding the very conservative nature of results when KI-suppression effects are operative is emphasized as being critical to the meaningful establishment of standard test methods and structural-design criteria.

The typical roentgenogram in cases of pleural effusion is quite familiar. Briefly, the effusion in the absence of pneumothorax first produces a uniformly dense opacity obliterating the costophrenic angle. The medial border is crescentic and extends downward and inward toward the diaphragm. As the effusion increases, it extends medially over the diaphragm and upward along the lateral aspect of the chest. The free margin is concave and the density is higher in the lateral or costal portion of the thorax than in the medial. In the absence of a fixed mediastinum, large pleural effusions cause displacement of the mediastinal contents to the opposite side. The upper concave margin seen in the roentgenogram does not, however, represent the actual height of the fluid. Kaunitz (1, 5) has demonstrated that simple pleural effusions may be divided into three regions. The lowest and most radiopaque zone is made up almost entirely of fluid, the middle or translucent area is due to a moderate amount of fluid, slightly c...

Two-way selection for 21-day pupa weight was conducted in two highly inbred lines of Tribolium castaneum. The results, after 17 generations of selection, indicated that one of these lines (CSI-10) possessed a moderate amount of genetic variation for the trait selected (21-day pupa weight). When the selected populations were allowed to mate at random for 13 generations, the mean pupa weight regressed to values close to the means in the populations prior to selection. Reciprocal crosses between the high and low select lines revealed that 80% of the variation was associated with the sex chromosomes. The possibility that recurrent mutation was responsible for the genetic variation is discussed. It is concluded that natural selection favoring the heterozygous condition, rather than recurrent mutation, is responsible for the genetic variation. It is suggested that selection occurring between the sublines has reduced the rate at which the inbred line, CSI-10, is approaching complete homozygosity.

As demands for improved public school education intensify and become increasingly uncompromising, educators are striving to learn how to make critical decisions better and more quickly. While they recognize the need for installing sophisticated planning and control systems, they also realize that from a practical standpoint such systems must carry a reasonable price tag, require only a moderate amount of time to implement, and be simple enough for non-technical people to understand and use.

Two experiments are reported which indicate that prior fear conditioning of the elements of a compound stimulus limits effectiveness of subsequent reinforcement of that compound. In Expt. 1, two CSs individually received a moderate amount of conditioning; when they were then presented in compound and reinforced, neither stimulus showed evidence of additional conditioning. A variety of control procedures indicated that each CS “blocked” conditioning to the other. In Expt. 2, two CSs received considerable fear conditioning; subsequent presentation in compound followed by shock led to reduction in the fear elicited by each component. The results are discussed in terms of the modulation the effectiveness of a reinforcer by the level of conditioned responding present when it is administered. The inadequacy of a stimulus-selection account of the results is noted.

A theory is given for the forward current-voltage characteristic of the PIN diffused junction silicon diode. The theory predicts that the device should obey a simple PN diode characteristic until the current density approaches 200 amp/cm2. At higher currents an additional potential drop occurs across the middle region proportional to the square root of the current. A moderate amount of recombination in the middle region has little effect on the characteristic. It is shown that the middle region cannot lead to anomalous characteristics at low currents.

A regional gravity‐meter survey executed during the summer of 1943 along the eastern slopes of the Sabine uplift indicated the presence of a prominent minimum trend. The first traverse of a subsequent reflection seismograph survey in portions of Townships 20 and 21 north, Ranges 12 and 13 west, Bossier Parish, Louisiana, revealed strong critical west and north dips, after which the Benton structure was delineated by a moderate amount of seismograph work. Geophysical maps of the raw gravity configurations and two seismic control horizons are presented. A comparison of the base of the anhydrite control with the deeper seismograph horizon, later identified to be somewhat below the Bodcaw sand of the Cotton Valley series, demonstrates the shifting of the structural axes down dip with increased depth. The discovery well on the apex of the structure and 16 other development wells confirm the outline of the seismic Cotton Valley picture. The structure is an elongate anticline approximately seven miles long with an average width of two and one‐quarter miles. Although only 60 feet of closure on the “D” sand has been proven by drilled wells, it is evident that total closure must exceed 100 feet. The history of folding of the Benton structure reveals interesting comparison of the results of the local causative forces as opposed to the effects of regional tilting due to the Sabine uplift. The remarkable accuracy of the seismic data was chiefly responsible for the unusual development following discovery of the field which resulted in early unitization of leaseholds which later included mineral and royalty interests. This permitted very economical drilling costs and proper spacing and location of wells to secure efficient drainage.

Although ocean-floor basalts form a very convergent group from the point of view of their major element compositions, the variation that they do show can be interpreted in geological terms to a certain extent, though analytical variation must contribute substantially to that observed. Multivariate statistical methods demonstrate a high-level fractional crystallization trend in 94 selected ocean-floor basalts caused by precipitation of calcic plagioclase, forsteritic olivine and augite. After this effect is subtracted, a moderate amount of variation remains which can be interpreted as caused by crystal-liquid processes involving amphibole, though this is less certain. A new average of ocean-floor basalt compositions is presented, and it is suggested that the term ‘oceanic tholeiite’ should not be retained.

In the manufacture of various types of tank glasses, the introduction of a moderate amount of borax is becoming the general practice. Increased furnace production, less checking in fabrication, better finish, and more durable ware are indicative of its use. The introduction of borax and some of the problems connected with it are discussed.

Healthy adult male rats were given test diets containing varying amount of calcium from 0.01 to 10% for 14 days. The resultant changes of parafollicular cells of the thyroids of these rats were histologically investigated and their number was counted, along with the bioassay of thyrocalcitonin. The parafollicular cells were divided into the light and dark cells. Upon feeding rats with a diet containing a moderate amount of calcium, 1.0 or 2.0%, dark cells proliferated and formed anastomosing cords surrounding the follicles, and light cells decreased in number. In rats given a diet containing a high or low calcium content, light cells increased, but dark cells disappeared. A striking increase of light cells was found upon the use of a diet containing 10 % calcium. The bioassay of thyrocalcitonin only from the thyroids of these rats revealed the hypocalcemic effect. The number of parafollicular cells was not necessarily in parallel with the present bioassay data.

In the paper, the mode of occurrence as well as the petrological and chemical properties of specially interesting viridine quartz schists which were discovered from the Chisaka area, Hidaka Province, are described. Viridine (the mineral is sometimes identifies as manganand-alusite) is generally very rare mineral and has been reported from only seven localities in the world, since it was first noticed in 1889 from S. Sweden. Subsequently the viridine from Chisaka is the first example to be known not only Japan but in E. and S. Asia. To summerize from the geological and petrological points of view, the rock may originated from high siliceous and argillaceous sedimentary rock containing a moderate amount of manganese and iron, under medium-grade regional metamorphic condition.

At Skutz falls, Cowichan river, B.C., fish migrated mainly during daylight hours. No correlation was found between diurnal fluctuations in number of migrants and volume or temperature of the water. Light seemed the determining factor. A moderate amount of artificial light had no effect on night migratory movements.

In an attempt to examine changes in hemoglobin, the erythrocyte count, the total protein and serum protein anemia was induced in rabbits by taking a large amount of blood once, a moderate amount of blood every other day and a small amount of blood every day by bloodletting. Serum protein was separated into fractions by means of paper electrophoresis.1. The intensity of anemia was in the following order: a great amount of blood>a moderate amount a small amount In the beginning of bloodletting anemia took place rapidly and then slowly. The decreasing rate of the total protein was lesser than that of anemia. When a small amount of blood was taken by bloodletting, the total protein showed an increase over the pre-operative value during bloodletting.2. Changes in the protein fractions occurred immediately after bloodletting. These changes became more marked 24 hours after bloodletting. There was a decrease in the albumin fraction even when any of the methods for bloodletting was used. The decrease in the albumin fraction constituted major changes in protein. The decreasing rate of the albumin fraction was not always proportional to the intensity of anemia. The return of the albumin fraction to normal levels required a long period of time.3. Any of the methods for bloodletting produced an increase in α1-globulin and α2-globulin. They made up for the initial decrease in the albumin fraction.4. During the recovery of anemia a striking increase in β-globulin was observed even when any of the methods was employed for bloodletting.5. γ-globulin showed an increase when a decrease in albumin lasted for a long time. It seemed as if the former increase compensated for the latter decrease, but γ-globulin rather decreased when anemia was small in intensity.

When laminarin sulphate was injected intravenously into dogs it acted as an antithrombic agent. As such it was about one-third as potent as heparin. It also showed anticoagulant activity when administered subcutaneously and intramuscularly to the dog.After the intravenous administration of a moderate amount of laminarin sulphate or of heparin to the dog, considerable anticoagulant material passed into the urine. When large oral doses were given to the rat, absorption from the intestine was very small, and much of the material passed into the faeces.When it was given intravenously, laminarin sulphate acted like heparin in clearing alimentary lipaemia in the dog and the rat.

Complete hydrogenation of cis-polyisoprene has been effected at 240°C. and 3,600 psi of hydrogen pressure over Raney nickel for 48 hr. Only a moderate amount of polymer breakdown occurred. High molecular weight hydrogenated polyisoprene was obtained by fractionating the hydrogenated polymer. Under similar conditions trans-polyisoprene, poly-2-ethylbutadiene, poly-2-n-propylbutadiene, poly-2-n-pentylbutadiene and poly-2-(2-methyl-2-penten-5-yl) butadiene were completely hydrogenated. No rearrangement of the polybutadienes as a result of hydrogenation was observed.

In sand-culture experiments with carrots, it was shown that a moderate quantity only of nitrogen was necessary for optimum growth compared with, for example, the turnip root. A moderate amount of (available) phosphorus was also sufficient for this purpose, as with the turnip, but contrary to experience with lettuce roots and tops. The greatest concentration of potassium applied, however, was probably the best for root development. Deficiency of phosphorus caused bronzing of the leaves, and absence of potassium, serious scorch; absence of boron resulted in a small, immature plant. Initial field trials on an old river gravel during experiments throughout the last 7 years indicated that dung gave no advantage over artificials, that artificials were possibly not needed on dunged land or land in good heart, and that land out of good heart, undunged and unfertilized throughout the 7 years, responded well to artificials, particularly phosphate and potash. The incidence of carrot fly, according to preliminary experiments, seemed to depend greatly on the nutrition of the carrots.

A study of the syncytium of mature placentas has been made in order to discover some constant change which might aid in the histologic diagnosis of the toxemias of pregnancy. A moderate amount of syncytial degeneration is present in all mature placentas. There is a definite increase in the severity and amount of this degeneration in the toxemias of pregnancy. The increase is slight in the mild toxemias but marked in the severe toxemias. In the cases of eclampsia it is practically universal. In nephritis syncytial degeneration is sometimes present but is secondary to the degeneration of the villi, while it is primary in cases of toxemia. The nephritic picture is often confusing and cannot be used as a differential diagnosis except in certain cases. In complete premature separation of the placenta the syncytial degeneration corresponds to the amount of toxemia present clinically and may be absent where no toxemia is present.

Leaf and branch arrangement simulating various degrees of lodging produced significant changes in light interception and yield of soybeans. For the 3 years of the experiment, maximum light penetration occurred with a moderate amount of plant spread simulating a small but definite amount of lodging. Generally, the largest part of the light interception occurred in the outer 15 to 30 cm of the plant canopy. Greater light penetration, resulting in it greater amount of the plant canopy having li.ght intensity above 150 ft-c, generally resulted in greater yields. A photographic technique involving the evaluation of leaf area in the sun was closely related to yield but found to be too time consuming for practical use. Greater oil content was generally associated with greater light penetration. The effect of shading of adjacent rows was greater in 1-m row spacing than on 1.5-m row spacing.

Femoral arterial blood flow was recorded with an electromagnetic flowmeter at the time of open heart surgery on subjects with and without aortic insufficiency. The records demonstrated that subjects with severe aortic insufficiency and Duroziez's murmur had a large amount of retrograde flow in the femoral artery. Those subjects without significant aortic insufficiency and no Duroziez's murmur had little or no backflow. When only a moderate amount of aortic insufficiency was present, the correlation was less satisfactory. In some subjects who had femoral backflow, a second recording was made from the femoral artery after the aortic valve had been replaced, and in these instances there was no longer any measurable backflow. Postoperatively these patients did not have Duroziez's murmur. It is concluded that Duroziez's crural murmur in subjects with aortic insufficiency is associated with retrograde diastolic femoral arterial blood flow.

The effect of compaction of the substrate on the growth of tomato varied with both the substrate and the degree of compaction. With most substrates, and in particular the fine-sand series which had a poor structure, any degree of compaction gave adverse effects, whilst with the brickearth series, which had a good structure, a moderate amount of compaction gave a significant increase in growth when peat was included in the substrate.

Estimating the error of refraction involves problems which are not commonly thought of during a routine examination but the recognition and the proper solution of which may be of extreme importance to the patient who presents the variation from the average. The purpose of this paper is to call attention to a rare condition which might easily escape detection, viz. a considerable difference in the axis of a moderate amount of astigmatism when the eyes are adjusted to the reading distance and when they are adjusted for distance fixation. Since the first case was observed I have recognized 3 more and several other oculists have each recognized a similar one, their cases being included in the present report. This would indicate that the condition is not extremely rare, and one should be on the alert in cases in which the near vision is not as good as one would expect

A new method is introduced for assessing children's component selection—i.e., the disposition to attend to a single feature of multifaceted stimuli. Eight-year-old children were found to exercise component selection to a lesser degree than 4-year-olds; while children at both age levels attended primarily to one stimulus component (shape), the older children showed a moderate amount of attention to a secondary redundant feature (color) as well. However, a comparable age difference in attention deployment was not observed when a single stimulus dimension (shape) was “relevant” in two variant tasks. These results imply a developmentally increasing ability to distinguish between conditions in which attending to redundant stimulus information can and cannot be useful. That this ability undergoes little further development beyond age 8 was suggested in a second experiment with 8- and 12-year-olds in which the three tasks produced relatively similar developmental trends in performance.

It was first shown that the enamel slips which have the best suspnding characteristics contain equal amounts of Na2O and B2O3 and at least a moderate amount of NaF. The solubilities of mixtures of Na2O, NaF, and B2O3 were then investigated. The pH of these solutions and the primary crystalline phases separating on evaporation also were determined. The solubility data obtained at room temperature were summarized. When the solutions were evaporated, NaF was the first crystalline phase to separate from a large proportion of the mixtures investigated. It was concluded that the desirable handling characteristics of enamels whose mill liquors contain the proper proportion of Na2O, NaF, and B2O3 are not due to the formation of complex salts but to the following combination of properties: (1) the presence of salts with a moderate solubility which changes very slightly with temperature, (2) a moderate pH of about 10 in a probably well-buffered solution, (3) a relatively stable crystalline material, NaF, as a primary phase, and (4) a secondary phase which crystallizes slowly with relatively little shrinkage.

A special telescope is described, in which the chromatic aberration can be varied continuously by means of a zero-power lens sliding within the telescope tube, the conditions being such that this movement does not introduce any other undesirable aberrations. This apparatus has been constructed, and by its aid many determinations have been made as to the best type of achromatism for visual observations, in daylight, in artificial light, and on astronomical objects. Several observers were employed to make settings, and their opinions as to the most desirable type of achromatism are tabulated and compared. In general it is found that a moderate amount of undercorrection is needed to give a truly colour-free image, that less undercorrection is required if the best definition is to be obtained, and that a slight overcorrection is desirable for astronomical work.

From experimental deformation of test models containing rigid or deformable inclusions embedded in elastic and viscous materials, an attempt has been made to determine the nature of strain in the matrix in relation to deformation or rigid rotation of the inclusions. The experiments indicate that swerving of schistosity around pebbles (a “concordant” relation) is a sure indicator of contrast in competence between pebble and matrix. The commonly recorded rough parallelism (or concordance) between schistosity and deformed pebbles usually develops from the following combinations of conditions, viz., (1) at least a moderate amount of deformation; (2) significant contrast in competence between pebble and matrix; and (3) fairly close spacing among pebbles. Theoretical calculations suggest that development of tapering pressure-shadow zones parallel to schistosity at opposite sides of garnet crystals can be explained by distribution of stress-pressure (average of stress components) around the porphyroblasts. Symmetrical S-shaped si in garnet can give only a range of values of paracrystalline rotation. The actual values within this range can be obtained only if the shear-strain prior to crystallization of garnet is known.

Presentation of Case A forty-two-year-old gravida 2, para 2, was admitted to the hospital because of abdominal pain. Two days previously she experienced the onset of crampy pain over the left iliac crest. It varied in intensity and was accompanied by a sensation that a bowel movement might afford relief. An enema yielded a moderate amount of soft stool but did not relieve the pain. The pain increased in intensity and was present over the entire abdomen, especially the lower portion. On the day before entry there was bilateral shoulder pain, especially with deep respirations or coughing. The patient was . . .

Primary demyelination in rats was investigated by means of experimental allergic encephalomyelitis (EAE). In addition, a portion of cerebral cortex was removed from normal rats in order to produce a Wallerian-type (secondary) degeneration. The criteria for this secondary type of demyelination, established from a study of the latter group of animals, were then compared with those for the demyelination which occurred in the rats with EAE. A moderate amount of secondary demyelination was found in rats with EAE, even in animals with a mild attack of the disease, whereas primary demyelination was rare, only isolated fibres being affected.

SummaryFragments of the mesocarp and endocarp of peach (Prunus persica L.) have been cultured in vitro on various media. Gibberellic acid produces limited growth; 1-naphthylacetamide causes a striking enlargement of the mesocarp cells and a moderate amount of division in the endocarp tissue; 6-benzyl-9-tetrahydropyran-adenine is practically inactive on the mesocarp, but initiates a very abundant proliferation of the endocarp.

Vulcanized rubber which is stored in a state of strain deteriorates much more rapidly than similar rubber not under strain. This observation has immediate application to rubber goods of many kinds, such as tire tubes packed in a folded state, tires standing under strains due to their own weight or to that of the vehicle, coiled and bent cable and hose, football bladders and bathing caps packed flat, folding-boat covers, and so on. There has been a moderate amount of investigation devoted to this phenomenon in the last two decades, but, in the main, quantitative studies have been devoted to simply stretched rubber, and data on the effects of folds or creases have not been available. As folds and creases involve compression as well as stretching, it cannot be assumed that conclusions drawn from studies of stretched rubber are applicable without change to rubber articles subjected to folding or creasing. The observations given in the present paper, made on different occasions in connection with other work, bring together several examples of the effect of folds on the aging of rubber.

To the internist and the pathologist siderosis means the deposition of pigment from the blood in various organs of the body, such as the spleen, liver, lungs, bone marrow and lymph nodes. Of course, the presence of free iron in any large amount in the blood stream would result in the deposit of this iron in the aforementioned organs also, as Migay and Petroff showed when they injected iron and also carmine blue into the blood streams of dogs. The spleen and liver contain the greatest amounts of iron. It is not present in the tissue cells of these organs, but is held in the reticulo-endothelial cells, which are specially differentiated phagocytic cells. The lymph nodes and the bone marrow contain a moderate amount of the foreign particulate material in these reticulo-endothelial cells, but the lungs contain much more, and the spleen and liver the most ; there is none in

Bean and marigold plants were grown to maturity under several kinds of fluorescent lamps to evaluate the effects of spectral differences on development and reproduction. Six kinds of lamps were tested including five lamps that were used in closely related experiments on tomato seedling growth (THOMAS and DUNN, 1967). Evaluation was by fresh- and dry-weight yields of immature and mature pods, and of vegetative tops of plants for bean; and by flowering and fresh-and dry-weight yields for marigold.Bean plants grown under two experimental lamps, Com I and IR III produced significantly higher fresh- and dry-weight yields of both mature and total pods than under Warm-white lamps. This effect could be attributed largely to the considerable energy emitted by the experimental lamps in the red and far-red, as compared to a larger emission in the green and blue for the Warm-white lamps. The differences in the yields for immature pods and vegetative portions of the mature tops were not significant.In a comparison of the effects of three experimental lamps with those of three commercial lamps on growth response of bean plants, the yields were in general higher for the experimental lamps, except for immature pods. The yields of vegetative tops were significantly greater for the 78/22 lamp over the yields for all other lamps. The larger proportion of red and far-red light emitted by the experimental lamps is again the probable cause of the higher yields with these lamps.Two sets of experiments on growth and flowering of marigold under various experimental and commercial lamps were largely inconclusive although there was some indication of beneficial effects by the experimental lamps.In general, the results with bean agree with those for tomato (THOMAS and DUNN, 1967), in that best growth was obtained with a lamp high in red light emission, a moderate amount in the far-red, and very little in the blue part of the spectrum.

354 operations for internal haemorrhoid which is called "Ligature and Excision Method" were carried out at the Kosei Gen. Hospital during the past 4 years and 7 months.Written inquiries were sent off to all patients, and 175 answers (49.7%) were received.148 cases had improved without any trouble but 27 cases had a slight degree of disorder such as anal bleeding, anal pain, anal wetness and anal prolapse. These were 2 cases who complained of a moderate amount of pain.It was found that most of these disorders were caused by postoperative hard feces, constipation or diarrhea.

In general HC-434 is a relatively homogeneous, difunctional polymer that can be readily chain extended through a variety of cure reactions. To date most of the work has been done with epoxide and aziridinyl curing agents, and a moderate amount of work has been done to improve the rates of cure by means of catalysts. Both aromatic amines and chromium salt complexes have proven to be effective catalysts. The physical properties of the chain-extended polymer with reinforcing fillers approach those of SBR vulcanizates, but improvement is still needed to achieve the properties required for tire formulations. The liquid polymer systems are suitable for belting, hose, and molding applications. However, additional work is required to develop the optimum cure systems for physical properties, faster catalysts, and alternative chain-extension reactions with other reactive curing agents.

Sutherland's empirical formula for the viscosity of a binary gas mixture is compared with the Chapman—Enskog theoretical first approximation. When the molecular weights of the constituents are nearly equal, Sutherland's formula is found to be a very good approximation to the theoretical result; when the molecular weights differ by a moderate amount, a formula of Sutherland's type may be theoretically impossible, but may nevertheless provide a satisfactory approximation; when the molecular weights are very different, a formula of Sutherland's type is theoretically possible, but the relative error is greater than when the molecular weights are nearly equal. Similar considerations apply to Wassiljewa's formula for the thermal conductivity. Generalizations of Sutherland's and Wassiljewa's formulas to mixtures of more than two components are not compatible with the theoretical first approximations.

Presentation of Case A sixty-nine-year-old man entered the hospital because of dyspnea. For approximately forty years before entry the patient had "bronchitis and asthma" and a chronic cough productive of a moderate amount of yellowish sputum, but without blood streaking. He smoked one or more packages of cigarettes daily for fifty years. He worked for seven years as a forester, for several years in a factory where fluorescent fixtures were made and for fifteen years in a rubber-manufacturing plant, where he was exposed to dusts and clay. Four years previously he stopped working after an episode of squeezing precordial chest . . .

This research examined the relationship between White racial consciousness development and perceived comfort with Black individuals. Participants were 339 White undergraduate students from a large southeastern state university who were asked to complete a two-part inventory: part one measuring White racial consciousness development (a five-stage scale) and part two measuring perceived comfort in situations involving Black individuals. An eta coefficient was calculated, providing evidence for the existence of a strong curvilinear relationship between White racial consciousness and perceived comfort with Black individuals η =.23 at p

The synthesis of benzimidazolone analogs of DOPA and α-methyl-DOPA and of the benzimidazole and benzimidazolone analogs of 6-hydroxy-DOPA is reported. These compounds showed a moderate amount of dopamine β-hydroxylase and tyrosine hydroxylase inhibitory activity but did not significantly alter tissue catacholamine levels.

Aloe vera preparations were evaluated for topical anti-inflammatory activity using the croton oil-induced edema assay. The results show that small amounts of A. vera given topically will inhibit inflammation induced by a moderate amount of irritant. In general, the decolorized Aloe was more effective than the colorized Aloe (with anthraquinone). A 47.1% inhibition of inflammation was obtained by 5% decolorized irradiated Aloe. These results may be used as a baseline to assess the biologic activity of A. vera in the treatment of inflammation by podiatric physicians.

The construction and operating characteristics of a Michelson interferometer designed on kinematic principles are outlined. The main components are ground steel dowel pins and ball bearings which are commercially available. The construction requires only a moderate amount of mechanical skill. Preliminary results indicate that the device is quite suitable for use in the undergraduate optics laboratory.

The presence of RNA was investigated in the cells of peripheral blood of horses by Brachet's method. Monocytes contain many RNA granules, while the quantity of RNA granules in lymphocytes varies from single granules to a large number of them. Thus, it was demonstrated by the histochemical method that lymphocytes prossess different activity with regard to the functions caused by RNA. No RNA granules were revealed in other blood cells. The authors estimated the number of lymphocytes rich in RNA, of those containing a moderate amount, and those with only a few RNA granules.

SummaryA method is described for obtaining samples of blood from the hepatic vein in man by means of a catheter in the venous system. Only a moderate amount of skill is required, and if carried out with care, samples can be obtained with minimal discomfort and danger to the subject.

Eighty per cent paralysis was induced and maintained for 90 minutes in the sheep by computer-controlled injection of gallamine, pancuronium, alcuronium or d-tubocurarine, using the integrated electromyogram as a measure of neuromuscular transmission. The dosage pattern consisted of a loading phase before any IEMG depression was detected, an onset phase during which a moderate amount of drug was required to achieve increasing paralysis, and a maintenance phase during which a substantially constant and relatively low infusion rate was required. The steady state rates of infusion in μg/kg/min during “maintenance” was found to be 6.0 for gallamine, 0.15 for pancuronium, 0.2 for alcuronium and 0.5 for d-tubocurarine.